Add multi monitor multiplayer

base.go

@@ -2,28 +2,29 @@ package main
 
 import "github.com/veandco/go-sdl2/sdl"
 
-const (
-	openingWidth = 7
-)
-
 type Base struct {
-	rect  sdl.Rect
+	owner        *Player
-	owner *Player
+	openingWidth int32
+	gameObject   *GameObject
 }
 
 func (base *Base) tick(players *[]*Player) {
 	for _, player := range *players {
-		if player.cullingRect.HasIntersection(&base.rect) {
+		if player.gameObject.baseRect.HasIntersection(&base.gameObject.baseRect) {
 			if player.rechargeCooldown == 0 && player.energy < MaxEnergy {
-				player.energy++
+				if MaxEnergy-player.energy < 4 {
+					player.energy++
+				} else {
+					player.energy += 4
+				}
 				if player == base.owner {
 					player.rechargeCooldown = RechargeCooldownOwn
 				} else {
 					player.rechargeCooldown = RechargeCooldownOpponent
 				}
 			}
-			if player == base.owner && player.repairCooldown == 0 && player.health < MaxHealth {
+			if player == base.owner && player.repairCooldown == 0 && player.shields < MaxShields {
-				player.health++
+				player.shields++
 				player.repairCooldown = RepairCooldown
 			}
 		}
@@ -31,112 +32,79 @@ func (base *Base) tick(players *[]*Player) {
 }
 
 func (base *Base) render(camera *sdl.Rect, surface *sdl.Surface) {
-	borderWidth := base.rect.W - openingWidth
+	base.gameObject.render(camera, surface)
-	borderWidthA := borderWidth / 2
-	borderWidthB := borderWidth - borderWidthA + 1
-	if borderWidth < 0 {
-		panic("Bad border width")
-	}
-	rects := []sdl.Rect{
-		{
-			X: base.rect.X,
-			Y: base.rect.Y,
-			W: 1,
-			H: base.rect.H,
-		},
-		{
-			X: base.rect.X + base.rect.W,
-			Y: base.rect.Y,
-			W: 1,
-			H: base.rect.H,
-		},
-		{
-			X: base.rect.X,
-			Y: base.rect.Y,
-			W: borderWidthA,
-			H: 1,
-		},
-		{
-			X: base.rect.X + borderWidthA + openingWidth,
-			Y: base.rect.Y,
-			W: borderWidthB,
-			H: 1,
-		},
-		{
-			X: base.rect.X,
-			Y: base.rect.Y + base.rect.H,
-			W: borderWidthA,
-			H: 1,
-		},
-		{
-			X: base.rect.X + borderWidthA + openingWidth,
-			Y: base.rect.Y + base.rect.H,
-			W: borderWidthB,
-			H: 1,
-		},
-	}
-
-	for _, rect := range rects {
-		if camera.HasIntersection(&rect) {
-			cameraCompensatedRect := sdl.Rect{
-				X: rect.X - camera.X,
-				Y: rect.Y - camera.Y,
-				W: rect.W,
-				H: rect.H,
-			}
-			surface.FillRect(&cameraCompensatedRect, (*base.owner).color2)
-		}
-	}
 }
 
 func (base *Base) build(gameMap *GameMap) {
-	borderWidth := base.rect.W - openingWidth
+	borderWidth := base.gameObject.baseRect.W - base.openingWidth
 	borderWidthA := borderWidth / 2
 	if borderWidth < 0 {
 		panic("Bad border width")
 	}
-	if base.rect.H < 9 {
+	if base.gameObject.baseRect.H < 9 {
 		panic("Bad border height")
 	}
-	if gameMap.width-base.rect.X-base.rect.W <= 0 {
+	if gameMap.width-base.gameObject.baseRect.X-base.gameObject.baseRect.W <= 0 {
 		panic("Bad base x location")
 	}
-	if gameMap.height-base.rect.Y-base.rect.H <= 0 {
+	if gameMap.height-base.gameObject.baseRect.Y-base.gameObject.baseRect.H <= 0 {
 		panic("Bad base y location")
 	}
-	if base.rect.X < 0 || base.rect.Y < 0 {
+	if base.gameObject.baseRect.X < 0 || base.gameObject.baseRect.Y < 0 {
 		panic("Bad base negative location")
 	}
-	for x := base.rect.X; x < base.rect.X+base.rect.W+1; x++ {
+	for x := base.gameObject.baseRect.X; x < base.gameObject.baseRect.X+base.gameObject.baseRect.W+1; x++ {
-		for y := base.rect.Y; y < base.rect.Y+base.rect.H+1; y++ {
+		for y := base.gameObject.baseRect.Y; y < base.gameObject.baseRect.Y+base.gameObject.baseRect.H+1; y++ {
 			gameMap.tiles[x][y] = 0
 		}
 	}
-	for y := base.rect.Y; y < base.rect.Y+base.rect.H; y++ {
+	for y := base.gameObject.baseRect.Y; y < base.gameObject.baseRect.Y+base.gameObject.baseRect.H; y++ {
-		gameMap.tiles[base.rect.X][y] = 4
+		gameMap.tiles[base.gameObject.baseRect.X][y] = 4
-		gameMap.tiles[base.rect.X+base.rect.W][y] = 4
+		gameMap.tiles[base.gameObject.baseRect.X+base.gameObject.baseRect.W][y] = 4
 	}
-	for x := base.rect.X; x < base.rect.X+borderWidthA; x++ {
+	for x := base.gameObject.baseRect.X; x < base.gameObject.baseRect.X+borderWidthA; x++ {
-		gameMap.tiles[x][base.rect.Y] = 4
+		gameMap.tiles[x][base.gameObject.baseRect.Y] = 4
-		gameMap.tiles[x][base.rect.Y+base.rect.H] = 4
+		gameMap.tiles[x][base.gameObject.baseRect.Y+base.gameObject.baseRect.H] = 4
 	}
-	for x := base.rect.X + borderWidthA + openingWidth; x < base.rect.X+base.rect.W+1; x++ {
+	for x := base.gameObject.baseRect.X + borderWidthA + base.openingWidth; x < base.gameObject.baseRect.X+base.gameObject.baseRect.W+1; x++ {
-		gameMap.tiles[x][base.rect.Y] = 4
+		gameMap.tiles[x][base.gameObject.baseRect.Y] = 4
-		gameMap.tiles[x][base.rect.Y+base.rect.H] = 4
+		gameMap.tiles[x][base.gameObject.baseRect.Y+base.gameObject.baseRect.H] = 4
 	}
 }
 
 func createBases(players *[]*Player, gameMap *GameMap) *[]*Base {
 	bases := &[]*Base{}
+
 	for ownerID, player := range *players {
+		gameObject := &GameObject{}
+		gameObject.baseRect = sdl.Rect{
+			X: player.gameObject.baseRect.X - 14,
+			Y: player.gameObject.baseRect.Y - 14,
+			W: 35,
+			H: 35,
+		}
+		openingWidth := int32(float64(player.gameObject.baseRect.W) * 1.5)
+		if openingWidth%2 == 0 {
+			openingWidth++
+		}
+
+		borderWidth := gameObject.baseRect.W - openingWidth
+		borderWidthA := borderWidth / 2
+		borderWidthB := borderWidth - borderWidthA + 1
+		if borderWidth < 0 {
+			panic("Bad border width")
+		}
+		gameObject.addColor((*player).playerColors.body)
+		gameObject.addColoredRect(0, 0, 1, gameObject.baseRect.H, 0)
+		gameObject.addColoredRect(gameObject.baseRect.W, 0, 1, gameObject.baseRect.H, 0)
+		gameObject.addColoredRect(0, 0, borderWidthA, 1, 0)
+		gameObject.addColoredRect(borderWidthA+openingWidth, 0, borderWidthB, 1, 0)
+		gameObject.addColoredRect(0, gameObject.baseRect.H, borderWidthA, 1, 0)
+		gameObject.addColoredRect(borderWidthA+openingWidth, gameObject.baseRect.H, borderWidthB, 1, 0)
 		*bases = append(*bases, &Base{
-			rect: sdl.Rect{
+			gameObject:   gameObject,
-				X: player.posX - 14,
+			owner:        (*players)[ownerID],
-				Y: player.posY - 14,
+			openingWidth: openingWidth,
-				W: 35,
-				H: 35,
-			},
-			owner: (*players)[ownerID],
 		})
 		(*bases)[ownerID].build(gameMap)
 	}

bullet.go

@@ -149,14 +149,16 @@ func (bullet *Bullet) tick(gameMap *GameMap,
 	}
 	hitPlayer := false
 	for _, player := range *players {
-		if player.rect1.HasIntersection(&bulletRect) ||
+		if hitPlayer {
-			player.rect2.HasIntersection(&bulletRect) ||
-			player.rect3.HasIntersection(&bulletRect) ||
-			player.rect4.HasIntersection(&bulletRect) {
-			hitPlayer = true
-			player.health -= 20
 			break
 		}
+		for _, coloredRect := range player.gameObject.getCurrentRects() {
+			if coloredRect.rect.HasIntersection(&bulletRect) {
+				hitPlayer = true
+				player.shields -= 10
+				break
+			}
+		}
 	}
 	if collisionResult != 0 || hitPlayer {
 		bullet.explode(gameMap, bulletParticleMap)

gameobject.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+	"image/color"
+)
+
+type GameObject struct {
+	baseRect    sdl.Rect
+	borderRect  sdl.Rect
+	orientation uint8
+	visualRects [][]*ColoredRect
+	colors      []color.Color
+}
+
+type ColoredRect struct {
+	color color.Color
+	rect  *sdl.Rect
+}
+
+func adjustRectToCamera(object *sdl.Rect, camera *sdl.Rect) *sdl.Rect {
+	return &sdl.Rect{
+		X: object.X - camera.X,
+		Y: object.Y - camera.Y,
+		W: object.W,
+		H: object.H,
+	}
+}
+
+func (gameObject *GameObject) adjustRectToCamera(offset *sdl.Rect, camera *sdl.Rect) *sdl.Rect {
+	return &sdl.Rect{
+		X: gameObject.baseRect.X + offset.X - camera.X,
+		Y: gameObject.baseRect.Y + offset.Y - camera.Y,
+		W: offset.W,
+		H: offset.H,
+	}
+}
+
+func (gameObject *GameObject) render(camera *sdl.Rect, surface *sdl.Surface) {
+	if camera.HasIntersection(&gameObject.baseRect) {
+		if Debug {
+			gameObject.borderRect = sdl.Rect{
+				X: gameObject.baseRect.X - 1,
+				Y: gameObject.baseRect.Y - 1,
+				W: gameObject.baseRect.W + 2,
+				H: gameObject.baseRect.H + 2,
+			}
+			borderRectFinal := adjustRectToCamera(&gameObject.borderRect, camera)
+			baseRectFinal := adjustRectToCamera(&gameObject.baseRect, camera)
+			surface.FillRect(borderRectFinal, sdl.MapRGBA(surface.Format, 20, 192, 128, 64))
+			surface.FillRect(baseRectFinal, sdl.MapRGBA(surface.Format, 255, 20, 10, 64))
+		}
+		if RenderGameObjects {
+			for _, coloredRect := range gameObject.visualRects[gameObject.orientation] {
+				finalRect := gameObject.adjustRectToCamera(coloredRect.rect, camera)
+				r, g, b, a := coloredRect.color.RGBA()
+				surface.FillRect(finalRect, sdl.MapRGBA(surface.Format, uint8(r), uint8(g), uint8(b), uint8(a)))
+			}
+		}
+	}
+}
+
+func (gameObject *GameObject) addColoredRect(x, y, w, h int32, color uint8) {
+	if gameObject.visualRects == nil {
+		gameObject.visualRects = make([][]*ColoredRect, 0)
+	}
+	if uint8(len(gameObject.visualRects)) <= gameObject.orientation {
+		gameObject.visualRects = append(gameObject.visualRects, make([]*ColoredRect, 0))
+	}
+	if uint8(len(gameObject.colors)) > color {
+		gameObject.visualRects[gameObject.orientation] = append(gameObject.visualRects[gameObject.orientation],
+			&ColoredRect{
+				color: gameObject.colors[color],
+				rect: &sdl.Rect{
+					X: x, Y: y, W: w, H: h,
+				},
+			})
+	}
+}
+
+func (gameObject *GameObject) getCurrentRects() []*ColoredRect {
+	return gameObject.visualRects[gameObject.orientation]
+}
+
+func (gameObject *GameObject) addColor(color color.Color) {
+	gameObject.colors = append(gameObject.colors, color)
+}

graphics.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"github.com/veandco/go-sdl2/sdl"
 )
 
@@ -10,9 +11,24 @@ func initializeSDL() {
 	}
 }
 
-func setupWindowAndSurface() (*sdl.Window, *sdl.Surface) {
+func setupWindowAndSurface(playerIndex uint8) (*sdl.Window, *sdl.Surface) {
 	const windowWidth, windowHeight = 160, 100
-	window, err := sdl.CreateWindow("test", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, sdl.WINDOW_SHOWN|sdl.WINDOW_RESIZABLE)
+	window, err := sdl.CreateWindow(fmt.Sprintf("Tunneler - player %d", playerIndex), sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, sdl.WINDOW_SHOWN|sdl.WINDOW_RESIZABLE)
+	if err != nil {
+		panic(err)
+	}
+
+	logicalSurface, err := sdl.CreateRGBSurface(0, windowWidth, windowHeight, 32, 0, 0, 0, 0)
+	if err != nil {
+		panic(err)
+	}
+
+	return window, logicalSurface
+}
+
+func setupMapWindowAndSurface() (*sdl.Window, *sdl.Surface) {
+	const windowWidth, windowHeight = MapWidth, MapHeight
+	window, err := sdl.CreateWindow("Tunneler map", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, sdl.WINDOW_SHOWN|sdl.WINDOW_RESIZABLE)
 	if err != nil {
 		panic(err)
 	}
@@ -81,7 +97,6 @@ func handleWindowResize(window *sdl.Window, logicalSurface *sdl.Surface) {
 	letterboxX := (windowWidth - newWidth) / 2
 	letterboxY := (windowHeight - newHeight) / 2
 
-	windowSurface.FillRect(nil, 0)
 	srcRect := &sdl.Rect{X: 0, Y: 0, W: logicalSurface.W, H: logicalSurface.H}
 	dstRect := &sdl.Rect{X: letterboxX, Y: letterboxY, W: newWidth, H: newHeight}
 
@@ -89,68 +104,45 @@ func handleWindowResize(window *sdl.Window, logicalSurface *sdl.Surface) {
 	window.UpdateSurface()
 }
 
-func renderScene(logicalSurface, playSurface, HUDSurface *sdl.Surface, gameMap *GameMap, players *[]*Player, bases *[]*Base, bullets *[]*Bullet, bulletParticles *[]*BulletParticle, camera *sdl.Rect, playSurfaceRect, playSurfaceTargetRect, HUDSurfaceRect, HUDSurfaceTargetRect *sdl.Rect) {
+func adjustWindow(window *sdl.Window, logicalSurface *sdl.Surface) {
-	HUDColor := sdl.MapRGBA(HUDSurface.Format, 101, 101, 101, 255)
+	// Get window surface and handle any errors
-	logicalColor := sdl.MapRGBA(HUDSurface.Format, 101, 101, 0, 255)
-	playColor := sdl.MapRGBA(HUDSurface.Format, 101, 0, 101, 255)
-
-	logicalSurface.FillRect(nil, logicalColor)
-	playSurface.FillRect(nil, playColor)
-	HUDSurface.FillRect(nil, HUDColor)
-
-	(*players)[0].track(camera)
-
-	gameMap.render(camera, playSurface)
-
-	for _, bullet := range *bullets {
-		(*bullet).render(camera, playSurface)
-		(*bullet).tick(gameMap, bulletParticles, bullets, players)
-	}
-
-	for _, base := range *bases {
-		(*base).render(camera, playSurface)
-		(*base).tick(players)
-	}
-
-	for _, player := range *players {
-		(*player).render(camera, playSurface)
-		(*player).tick()
-	}
-
-	for _, bulletParticle := range *bulletParticles {
-		bulletParticle.render(camera, playSurface)
-		bulletParticle.tick(bulletParticles)
-	}
-
-	renderHud((*players)[0], HUDSurface)
-
-	playSurface.BlitScaled(playSurfaceRect, logicalSurface, playSurfaceTargetRect)
-	HUDSurface.BlitScaled(HUDSurfaceRect, logicalSurface, HUDSurfaceTargetRect)
-}
-
-func adjustWindow(window *sdl.Window, logicalSurface *sdl.Surface, pixelBG uint32) {
 	windowSurface, err := window.GetSurface()
 	if err != nil {
 		panic(err)
 	}
 
+	// Retrieve window dimensions
 	windowWidth, windowHeight := windowSurface.W, windowSurface.H
-	aspectRatio := float64(logicalSurface.W) / float64(logicalSurface.H)
-	newWidth := windowWidth
-	newHeight := int32(float64(windowWidth) / aspectRatio)
 
-	if newHeight > windowHeight {
+	// Calculate aspect ratio
+	logicalAspectRatio := float64(logicalSurface.W) / float64(logicalSurface.H)
+	windowAspectRatio := float64(windowWidth) / float64(windowHeight)
+
+	var newWidth, newHeight int32
+	if windowAspectRatio > logicalAspectRatio {
+		// Window is wider than logical surface
 		newHeight = windowHeight
-		newWidth = int32(float64(windowHeight) * aspectRatio)
+		newWidth = int32(float64(windowHeight) * logicalAspectRatio)
+	} else {
+		// Window is taller or equal in aspect ratio
+		newWidth = windowWidth
+		newHeight = int32(float64(windowWidth) / logicalAspectRatio)
 	}
 
+	// Calculate letterbox positions
 	letterboxX := (windowWidth - newWidth) / 2
 	letterboxY := (windowHeight - newHeight) / 2
 
-	windowSurface.FillRect(nil, pixelBG)
+	// Fill background
+	windowSurface.FillRect(nil, sdl.MapRGBA(logicalSurface.Format, 80, 20, 10, 255))
+
+	// Set source and destination rectangles
 	srcRect := &sdl.Rect{X: 0, Y: 0, W: logicalSurface.W, H: logicalSurface.H}
 	dstRect := &sdl.Rect{X: letterboxX, Y: letterboxY, W: newWidth, H: newHeight}
 
+	// Perform the scaled blit
 	logicalSurface.BlitScaled(srcRect, windowSurface, dstRect)
+
+	// Update the window surface
 	window.UpdateSurface()
 }

hud.go

@@ -2,77 +2,82 @@ package main
 
 import "github.com/veandco/go-sdl2/sdl"
 
-func renderHud(player *Player, surface *sdl.Surface) {
+var letterOffsets = []int32{
-	eRects := []sdl.Rect{
+	2,
-		{
+	10,
-			X: 5,
+	18,
-			Y: 4,
+}
-			W: 6,
+
-			H: 1,
+var letterColors []uint32
-		},
+
-		{
+// Map function to convert value from range [0, 6] to range [0, 88]
-			X: 5,
+func mapRange(x, minX, maxX, minY, maxY uint16) int32 {
-			Y: 4,
+	// Perform conversion to float64 to ensure proper division
-			W: 1,
+	return int32((float64(x-minX)/float64(maxX-minX))*float64(maxY-minY) + float64(minY))
-			H: 5,
+}
-		},
+
-		{
+var rects = [][]sdl.Rect{
-			X: 5,
+	// Define the rects with modified Y-values
-			Y: 6,
+	{
-			W: 6,
+		{X: 5, Y: 0, W: 6, H: 1},
-			H: 1,
+		{X: 5, Y: 0, W: 1, H: 5},
-		},
+		{X: 5, Y: 2, W: 6, H: 1},
-		{
+		{X: 5, Y: 4, W: 6, H: 1},
-			X: 5,
+	},
-			Y: 8,
+
-			W: 6,
+	{
-			H: 1,
+		{X: 6, Y: 0, W: 4, H: 1},  // Top bar of "A"
-		},
+		{X: 5, Y: 1, W: 1, H: 4},  // Left vertical line of "A"
-	}
+		{X: 10, Y: 1, W: 1, H: 4}, // Right vertical line of "A"
-
+		{X: 6, Y: 3, W: 4, H: 1},  // Middle bar of "A"
-	sRects := []sdl.Rect{
+	},
-		{
+
-			X: 5,
+	{
-			Y: 18,
+		{X: 5, Y: 0, W: 6, H: 1},
-			W: 6,
+		{X: 5, Y: 0, W: 1, H: 3},
-			H: 1,
+		{X: 5, Y: 2, W: 6, H: 1},
-		},
+		{X: 10, Y: 2, W: 1, H: 3},
-		{
+		{X: 5, Y: 4, W: 6, H: 1},
-			X: 5,
+	},
-			Y: 18,
+}
-			W: 1,
+
-			H: 3,
+func initHud(surface *sdl.Surface) {
-		},
+	letterColors = []uint32{
-		{
+		sdl.MapRGBA(surface.Format, 243, 235, 28, 255),
-			X: 5,
+		sdl.MapRGBA(surface.Format, 255, 80, 40, 255),
-			Y: 20,
+		sdl.MapRGBA(surface.Format, 40, 243, 243, 255),
-			W: 6,
+	}
-			H: 1,
+	HUDColor := sdl.MapRGBA(surface.Format, 101, 101, 101, 255)
-		},
+	surface.FillRect(nil, HUDColor)
-		{
+
-			X: 10,
+	for letterIndex, letter := range rects {
-			Y: 20,
+		for _, letterRect := range letter {
-			W: 1,
+			offsetRect := letterRect
-			H: 3,
+			offsetRect.Y += letterOffsets[letterIndex]
-		},
+			surface.FillRect(&offsetRect, letterColors[letterIndex])
-		{
+		}
-			X: 5,
+	}
-			Y: 22,
+}
-			W: 6,
+
-			H: 1,
+func renderHud(player *Player, surface *sdl.Surface) {
-		},
+
-	}
+	for _, letterOffset := range letterOffsets {
-
+		surface.FillRect(&sdl.Rect{X: 16, Y: letterOffset - 1, W: 90, H: 7}, 0)
-	for _, rect := range eRects {
+	}
-		surface.FillRect(&rect, sdl.MapRGBA(surface.Format, 243, 235, 28, 255))
+
-	}
+	HUDValues := []int32{
-	for _, rect := range sRects {
+		mapRange(player.energy, 0, MaxEnergy, 0, 88),
-		surface.FillRect(&rect, sdl.MapRGBA(surface.Format, 40, 243, 243, 255))
+		mapRange(player.ammunition, 0, MaxAmmunition, 0, 88),
-	}
+		mapRange(player.shields, 0, MaxShields, 0, 88),
-
+	}
-	surface.FillRect(&sdl.Rect{X: 16, Y: 3, W: 90, H: 7}, sdl.MapRGBA(surface.Format, 0, 0, 0, 255))
+
-	surface.FillRect(&sdl.Rect{X: 16, Y: 17, W: 90, H: 7}, sdl.MapRGBA(surface.Format, 0, 0, 0, 255))
+	for HUDValueIndex, HUDValue := range HUDValues {
-
+		surface.FillRect(
-	surface.FillRect(&sdl.Rect{X: 17, Y: 4, W: int32(player.energy / 20), H: 5}, sdl.MapRGBA(surface.Format, 243, 235, 28, 255))
+			&sdl.Rect{
-	surface.FillRect(&sdl.Rect{X: 17, Y: 18, W: int32(player.health), H: 5}, sdl.MapRGBA(surface.Format, 40, 243, 243, 255))
+				X: 17,
+				Y: letterOffsets[HUDValueIndex],
+				W: HUDValue,
+				H: 5},
+			letterColors[HUDValueIndex])
+	}
 }

main.go

@@ -5,15 +5,21 @@ import (
 )
 
 const (
-	MapWidth                 = 1000 // Width of the map
+	MapWidth    = 1000 // Width of the map
-	MapHeight                = 1000 // Height of the map
+	MapHeight   = 1000 // Height of the map
-	MaxEnergy                = 1760
+	BlastRadius = 5
-	MaxHealth                = 88
+
-	NormalShotCost           = 3
+	MaxEnergy     = 3520
-	SuperShotCost            = 20
+	MaxAmmunition = 6
-	MovementCost             = 1
+	MaxShields    = 100
-	DiggingCost              = 2
+
-	ShootDiggingCostBonus    = 1
+	NormalShotCost        = 7
+	SuperShotCost         = 80
+	ReloadCost            = 4
+	MovementCost          = 1
+	DiggingCost           = 3
+	ShootDiggingCostBonus = 1
+
 	ShootCooldown            = 8
 	RechargeCooldownOwn      = 0
 	DiggingCooldown          = 4
@@ -22,137 +28,159 @@ const (
 	MovementCooldown         = 2
 	MovementCooldownNoEnergy = 4
 	DiggingCooldownNoEnergy  = 8
+	ReloadCooldown           = 16
+
+	Debug             = false
+	MapWindow         = true
+	RenderGameObjects = true
+	ProfilerOn        = true
+
+	JoyStickDeadZone = 8000
+
+	DoAllKeymapsPlayers = true
+	DoJoyStickPlayers   = true
+	DoKeymapPlayer      = true
 )
 
+var mapWindow *sdl.Window
+var mapSurface *sdl.Surface
+var mapRendererRect = &sdl.Rect{X: 0, Y: 0, W: MapWidth, H: MapHeight}
+
 func main() {
 	initializeSDL()
 	defer sdl.Quit()
 
-	window, logicalSurface := setupWindowAndSurface()
+	gameMap := &GameMap{}
-	window.SetTitle("GOing to tunnel")
-	defer window.Destroy()
-	defer logicalSurface.Free()
-
-	playSurface, playSurfaceRect, playSurfaceTargetRect := setupPlaySurface()
-	defer playSurface.Free()
-
-	HUDSurface, HUDSurfaceRect, HUDSurfaceTargetRect := setupHUDSurface()
-	defer HUDSurface.Free()
-
-	pixelBG := sdl.MapRGBA(logicalSurface.Format, 80, 20, 10, 255)
-
-	gameMap := GameMap{}
 	gameMap.createGameMap(MapWidth, MapHeight)
 
 	players := &[]*Player{}
+	initPlayerColors()
+	createPlayers(getNeededPlayers(), playerColors, keyMaps, joyMaps, gameMap, players)
 
-	createPlayer(
+	defer closeThings(players)
-		sdl.MapRGBA(playSurface.Format, 0, 0, 182, 255),
-		sdl.MapRGBA(playSurface.Format, 44, 44, 255, 255),
-		sdl.MapRGBA(playSurface.Format, 243, 235, 28, 255),
-		&gameMap,
-		players)
 
-	createPlayer(
+	bases := createBases(players, gameMap)
-		sdl.MapRGBA(playSurface.Format, 44, 184, 44, 255),
-		sdl.MapRGBA(playSurface.Format, 0, 249, 0, 255),
-		sdl.MapRGBA(playSurface.Format, 243, 235, 28, 255),
-		&gameMap,
-		players)
 
-	bases := createBases(players, &gameMap)
+	bullets := &[]*Bullet{}
-
+	bulletParticles := &[]*BulletParticle{}
-	bulletMap := &[]*Bullet{}
-	bulletParticleMap := &[]*BulletParticle{}
-
-	camera := sdl.Rect{X: 0, Y: 0, W: 76, H: 76}
 
+	for playerIndex, player := range *players {
+		initPlayer(uint8(playerIndex), player)
+	}
+	if MapWindow {
+		mapWindow, mapSurface = setupMapWindowAndSurface()
+	}
 	running := true
 	for running {
-		currentTime := sdl.GetTicks64()
+		frameStart := sdl.GetTicks64()
+		for playerIndex, player := range *players {
+			// Delay to achieve roughly 60 FPS
+			if player.local {
+				running = doPlayerFrame(uint8(playerIndex), player, players, gameMap, bases, bullets, bulletParticles)
+				if !running {
+					break
+				}
+			}
+		}
+		if MapWindow {
+			gameMap.render(mapRendererRect, mapSurface)
+			for _, bullet := range *bullets {
+				(*bullet).render(mapRendererRect, mapSurface)
+			}
+			for _, base := range *bases {
+				(*base).render(mapRendererRect, mapSurface)
+			}
+			for _, playerLoop := range *players {
+				(*playerLoop).render(mapRendererRect, mapSurface)
+			}
+			for _, bulletParticle := range *bulletParticles {
+				bulletParticle.render(mapRendererRect, mapSurface)
+			}
+			adjustWindow(mapWindow, mapSurface)
+		}
+		//now tick world
+		for _, bullet := range *bullets {
+			(*bullet).tick(gameMap, bulletParticles, bullets, players)
+		}
+		for _, base := range *bases {
+			(*base).tick(players)
+		}
+		for _, bulletParticle := range *bulletParticles {
+			bulletParticle.tick(bulletParticles)
+		}
 
-		running = handleEvents(window, logicalSurface)
+		enforceFrameRate(frameStart, 60)
+	}
+}
 
+func initPlayer(playerIndex uint8, player *Player) {
+	player.window, player.logicalSurface = setupWindowAndSurface(playerIndex)
+	logicalColor := sdl.MapRGBA(player.logicalSurface.Format, 101, 101, 0, 255)
+	player.logicalSurface.FillRect(nil, logicalColor)
+
+	player.playSurface, player.playSurfaceRect, player.playSurfaceTargetRect = setupPlaySurface()
+	playColor := sdl.MapRGBA(player.playSurface.Format, 101, 0, 101, 255)
+	player.playSurface.FillRect(nil, playColor)
+
+	player.HUDSurface, player.HUDSurfaceRect, player.HUDSurfaceTargetRect = setupHUDSurface()
+	initHud(player.HUDSurface)
+	player.camera = &sdl.Rect{X: 0, Y: 0, W: 76, H: 76}
+}
+
+func doPlayerFrame(playerIndex uint8, player *Player, players *[]*Player, gameMap *GameMap, bases *[]*Base, bullets *[]*Bullet, bulletParticles *[]*BulletParticle) bool {
+	running := true
+	var (
+		totalHandleEventsTime, totalRenderTime, totalFrameTime uint64
+		totalScalingTime, frameCount                           uint64
+		isShooting, shouldContinue                             bool
+	)
+	frameStart := sdl.GetTicks64()
+
+	// Profile handleEvents
+	totalHandleEventsTime += profileSection(func() {
+		running = handleEvents(player.window, player.logicalSurface)
 		keyboard := sdl.GetKeyboardState()
+		shouldContinue, isShooting = handleInput(keyboard, bullets, player, gameMap, player.playSurface.Format, players)
+		running = running && shouldContinue
+	})
 
-		running = running && handleInput(keyboard, bulletMap, (*players)[0], &gameMap, playSurface.Format, players)
+	// Profile rendering (aggregate all renderings)
+	totalRenderTime += profileSection(func() {
+		player.track(player.camera)
+		gameMap.render(player.camera, player.playSurface)
 
-		renderScene(logicalSurface, playSurface, HUDSurface, &gameMap, players, bases, bulletMap, bulletParticleMap, &camera, playSurfaceRect, playSurfaceTargetRect, HUDSurfaceRect, HUDSurfaceTargetRect)
+		for _, bullet := range *bullets {
-
+			(*bullet).render(player.camera, player.playSurface)
-		adjustWindow(window, logicalSurface, pixelBG)
-
-		// Calculate delay to achieve roughly 60 FPS
-		frameDuration := 1000 / 60
-		elapsed := sdl.GetTicks64() - currentTime
-		if delay := frameDuration - int(elapsed); delay > 0 {
-			sdl.Delay(uint32(delay))
 		}
+		for _, base := range *bases {
+			(*base).render(player.camera, player.playSurface)
+		}
+		for _, playerLoop := range *players {
+			(*playerLoop).render(player.camera, player.playSurface)
+		}
+		for _, bulletParticle := range *bulletParticles {
+			bulletParticle.render(player.camera, player.playSurface)
+		}
+
+		player.tick(isShooting, bullets, player.playSurface.Format)
+		renderHud(player, player.HUDSurface)
+		player.playSurface.BlitScaled(player.playSurfaceRect, player.logicalSurface, player.playSurfaceTargetRect)
+		player.HUDSurface.BlitScaled(player.HUDSurfaceRect, player.logicalSurface, player.HUDSurfaceTargetRect)
+	})
+
+	// Profile window adjustments
+	totalScalingTime += profileSection(func() {
+		adjustWindow(player.window, player.logicalSurface)
+	})
+
+	frameEnd := sdl.GetTicks64()
+	totalFrameTime += frameEnd - frameStart
+	frameCount++
+
+	// Log profiling information every 1000 frames
+	if frameCount%1000 == 0 && ProfilerOn && playerIndex == 0 {
+		logProfilingInfo(totalHandleEventsTime, totalRenderTime, totalScalingTime, totalFrameTime, frameCount)
+		resetProfilingCounters(&totalHandleEventsTime, &totalRenderTime, &totalScalingTime, &totalFrameTime, &frameCount)
 	}
-}
+	return running
-
-func handleInput(keyboard []uint8, bullets *[]*Bullet, player *Player, gameMap *GameMap, format *sdl.PixelFormat, players *[]*Player) bool {
-	shoot := false
-	super := false
-
-	// Flags to track movement in each direction
-	moveUp := false
-	moveDown := false
-	moveLeft := false
-	moveRight := false
-
-	// Process keyboard input
-	for key, value := range keyboard {
-		if value == 0 {
-			continue
-		}
-
-		if key == sdl.SCANCODE_ESCAPE {
-			return false
-		} else if key == sdl.SCANCODE_SPACE {
-			shoot = true
-		} else if key == sdl.SCANCODE_LCTRL {
-			super = true
-		} else if key == sdl.SCANCODE_W {
-			moveUp = true
-		} else if key == sdl.SCANCODE_S {
-			moveDown = true
-		} else if key == sdl.SCANCODE_A {
-			moveLeft = true
-		} else if key == sdl.SCANCODE_D {
-			moveRight = true
-		}
-	}
-
-	// Handle shooting after the loop
-	if shoot {
-		player.shoot(super, bullets, format)
-	}
-
-	// Determine player orientation for diagonal movement
-	if moveUp && moveRight {
-		player.orientation = 4 // Up-Right
-	} else if moveUp && moveLeft {
-		player.orientation = 5 // Up-Left
-	} else if moveDown && moveRight {
-		player.orientation = 6 // Down-Right
-	} else if moveDown && moveLeft {
-		player.orientation = 7 // Down-Left
-	} else if moveUp {
-		player.orientation = 0 // Up
-	} else if moveRight {
-		player.orientation = 1 // Right
-	} else if moveDown {
-		player.orientation = 2 // Down
-	} else if moveLeft {
-		player.orientation = 3 // Left
-	}
-
-	// Handle movement after the loop
-	if moveUp || moveDown || moveLeft || moveRight {
-		if player.tryMove(gameMap, shoot, players) {
-			player.energy -= MovementCost
-		}
-	}
-
-	return true
 }

map.go

@@ -49,12 +49,12 @@ func (gameMap *GameMap) getTileColor(x int32, y int32) color.Color {
 
 func (gameMap *GameMap) createGameMap(width int32, height int32) {
 	gameMap.tiles = make([][]uint8, width)
-	perlinNoiseRock := perlin.NewPerlin(2, 2, 4, time.Now().Unix())
+	perlinNoiseRock := perlin.NewPerlin(2, 4, 8, time.Now().Unix())
 	perlinNoiseSoil := perlin.NewPerlin(2, 8, 4, time.Now().Unix())
 	for i := range gameMap.tiles {
 		gameMap.tiles[i] = make([]uint8, height)
 		for j := range gameMap.tiles[i] {
-			perlinRock := perlinNoiseRock.Noise2D(float64(i)/float64(width)*3, float64(j)/float64(height)*3)
+			perlinRock := perlinNoiseRock.Noise2D(float64(i)/float64(width)*6, float64(j)/float64(height)*6)
 			if perlinRock > 0.2 {
 				gameMap.tiles[i][j] = 1
 			} else {

player.go

@@ -7,107 +7,50 @@ import (
 )
 
 type Player struct {
-	posX             int32
+	local            bool
-	posY             int32
+	playerColors     PlayerColors
-	orientation      uint8
+	keyMap           KeyMap
-	color1           uint32
+	joyMap           JoyMap
-	color2           uint32
+	joyStick         *sdl.Joystick
-	color3           uint32
+	camera           *sdl.Rect
 	energy           uint16
-	health           uint16
+	ammunition       uint16
+	shields          uint16
 	digCooldown      uint8
 	shootCooldown    uint8
 	repairCooldown   uint8
 	rechargeCooldown uint8
 	movementCooldown uint8
-	rect1            sdl.Rect
+	reloadCooldown   uint8
-	rect2            sdl.Rect
+	gameObject       *GameObject
-	rect3            sdl.Rect
+
-	rect4            sdl.Rect
+	window *sdl.Window
-	cullingRect      sdl.Rect
+
+	logicalSurface *sdl.Surface
+	playSurface    *sdl.Surface
+	HUDSurface     *sdl.Surface
+
+	playSurfaceRect *sdl.Rect
+	HUDSurfaceRect  *sdl.Rect
+
+	playSurfaceTargetRect *sdl.Rect
+	HUDSurfaceTargetRect  *sdl.Rect
 }
 
 func (player *Player) track(camera *sdl.Rect) {
-	camera.X = player.posX - 37
+	camera.X = player.gameObject.baseRect.X - 37
-	camera.Y = player.posY - 38
+	camera.Y = player.gameObject.baseRect.Y - 38
 }
 
 func (player *Player) render(camera *sdl.Rect, surface *sdl.Surface) {
-	relativePlayerX := player.posX - camera.X
-	relativePlayerY := player.posY - camera.Y
-
-	switch player.orientation {
-	case 0: // Up
-		player.rect1 = sdl.Rect{X: relativePlayerX, Y: relativePlayerY + 1, W: 1, H: 6}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 4, Y: relativePlayerY + 1, W: 1, H: 6}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 2, W: 3, H: 4}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 2, Y: relativePlayerY, W: 1, H: 4}
-
-	case 1: // Right
-		player.rect1 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 1, W: 6, H: 1}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 5, W: 6, H: 1}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 2, Y: relativePlayerY + 2, W: 4, H: 3}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 4, Y: relativePlayerY + 3, W: 4, H: 1}
-
-	case 2: // Down
-		player.rect1 = sdl.Rect{X: relativePlayerX, Y: relativePlayerY + 1, W: 1, H: 6}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 4, Y: relativePlayerY + 1, W: 1, H: 6}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 2, W: 3, H: 4}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 2, Y: relativePlayerY + 4, W: 1, H: 4}
-
-	case 3: // Left
-		player.rect1 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 1, W: 6, H: 1}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 5, W: 6, H: 1}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 2, Y: relativePlayerY + 2, W: 4, H: 3}
-		player.rect4 = sdl.Rect{X: relativePlayerX, Y: relativePlayerY + 3, W: 4, H: 1}
-
-	case 4: // Up-Right
-		player.rect1 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 6, W: 5, H: 1}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 2, W: 1, H: 4}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 2, Y: relativePlayerY + 2, W: 4, H: 4}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 4, Y: relativePlayerY + 2, W: 2, H: 2}
-
-	case 5: // Up-Left
-		player.rect1 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 6, W: 5, H: 1}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 5, Y: relativePlayerY + 2, W: 1, H: 5}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 2, W: 4, H: 4}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 2, W: 2, H: 2}
-
-	case 6: // Down-Right
-		player.rect1 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 1, W: 5, H: 1}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 1, W: 1, H: 5}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 2, Y: relativePlayerY + 2, W: 4, H: 4}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 4, Y: relativePlayerY + 4, W: 2, H: 2}
-
-	case 7: // Down-Left
-		player.rect1 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 1, W: 4, H: 1}
-		player.rect2 = sdl.Rect{X: relativePlayerX + 5, Y: relativePlayerY + 1, W: 1, H: 5}
-		player.rect3 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 2, W: 4, H: 4}
-		player.rect4 = sdl.Rect{X: relativePlayerX + 1, Y: relativePlayerY + 4, W: 2, H: 2}
-	}
 
 	// Common part: Rendering player
-	player.cullingRect = sdl.Rect{X: player.posX, Y: player.posY, W: 7, H: 7}
+	player.gameObject.baseRect = sdl.Rect{X: player.gameObject.baseRect.X, Y: player.gameObject.baseRect.Y, W: 7, H: 7}
-	cameraAdjustedCullingRect := sdl.Rect{
+
-		X: player.cullingRect.X - camera.X,
+	if player.shields > 0 && player.shields <= MaxShields {
-		Y: player.cullingRect.Y - camera.Y,
+		player.gameObject.render(camera, surface)
-		W: player.cullingRect.W,
-		H: player.cullingRect.H,
-	}
-	cameraAdjustedCullingRectBorder := sdl.Rect{
-		X: player.cullingRect.X - camera.X - 1,
-		Y: player.cullingRect.Y - camera.Y - 1,
-		W: player.cullingRect.W + 2,
-		H: player.cullingRect.H + 2,
-	}
-	if camera.HasIntersection(&player.cullingRect) {
-		surface.FillRect(&cameraAdjustedCullingRectBorder, sdl.MapRGBA(surface.Format, 10, 255, 255, 64))
-		surface.FillRect(&cameraAdjustedCullingRect, sdl.MapRGBA(surface.Format, 255, 20, 10, 64))
-		surface.FillRect(&player.rect1, player.color1)
-		surface.FillRect(&player.rect2, player.color1)
-		surface.FillRect(&player.rect3, player.color2)
-		surface.FillRect(&player.rect4, player.color3)
 	}
+
 }
 
 func (player *Player) digBlock(posX, posY int32, gameMap *GameMap, isShooting bool) uint8 {
@@ -122,7 +65,7 @@ func (player *Player) digBlock(posX, posY int32, gameMap *GameMap, isShooting bo
 	return 2
 }
 
-func (player *Player) tick() {
+func (player *Player) tick(isShooting bool, bullets *[]*Bullet, format *sdl.PixelFormat) {
 	if player.digCooldown > 0 {
 		player.digCooldown--
 	}
@@ -138,6 +81,17 @@ func (player *Player) tick() {
 	if player.movementCooldown > 0 {
 		player.movementCooldown--
 	}
+	if player.reloadCooldown > 0 {
+		player.reloadCooldown--
+	} else if player.ammunition < MaxAmmunition && !isShooting && player.energy > ReloadCost {
+		player.ammunition++
+		player.reloadCooldown = ReloadCooldown
+		player.energy -= ReloadCost
+	}
+	if player.shields <= 0 {
+		player.shields = MaxShields + 1
+		player.explode(bullets)
+	}
 }
 
 func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Player) (moved bool) {
@@ -151,21 +105,21 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 	shouldPenalizeDigging := false
 	stopped := false
 
-	switch player.orientation {
+	switch player.gameObject.orientation {
 	case 0: // Up
 		collisionRect := sdl.Rect{
-			X: player.posX,
+			X: player.gameObject.baseRect.X,
-			Y: player.posY - 1,
+			Y: player.gameObject.baseRect.Y - 1,
 			W: 5,
 			H: 7,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for x := player.posX; x < player.posX+5 && !stopped; x++ {
+		for x := player.gameObject.baseRect.X; x < player.gameObject.baseRect.X+5 && !stopped; x++ {
-			for y := player.posY - 1; y < player.posY+7; y++ {
+			for y := player.gameObject.baseRect.Y - 1; y < player.gameObject.baseRect.Y+7; y++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -181,23 +135,23 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posY--
+			player.gameObject.baseRect.Y--
 		}
 
 	case 1: // Right
 		collisionRect := sdl.Rect{
-			X: player.posX + 1,
+			X: player.gameObject.baseRect.X + 1,
-			Y: player.posY,
+			Y: player.gameObject.baseRect.Y,
 			W: 7,
 			H: 5,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for y := player.posY; y < player.posY+7 && !stopped; y++ {
+		for y := player.gameObject.baseRect.Y + 1; y < player.gameObject.baseRect.Y+6 && !stopped; y++ {
-			for x := player.posX + 1; x < player.posX+8; x++ {
+			for x := player.gameObject.baseRect.X + 1; x < player.gameObject.baseRect.X+8; x++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -213,23 +167,23 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posX++
+			player.gameObject.baseRect.X++
 		}
 
 	case 2: // Down
 		collisionRect := sdl.Rect{
-			X: player.posX,
+			X: player.gameObject.baseRect.X,
-			Y: player.posY + 1,
+			Y: player.gameObject.baseRect.Y + 1,
 			W: 5,
 			H: 7,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for x := player.posX; x < player.posX+5 && !stopped; x++ {
+		for x := player.gameObject.baseRect.X; x < player.gameObject.baseRect.X+5 && !stopped; x++ {
-			for y := player.posY + 1; y < player.posY+8; y++ {
+			for y := player.gameObject.baseRect.Y + 1; y < player.gameObject.baseRect.Y+8; y++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -245,23 +199,23 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posY++
+			player.gameObject.baseRect.Y++
 		}
 
 	case 3: // Left
 		collisionRect := sdl.Rect{
-			X: player.posX - 1,
+			X: player.gameObject.baseRect.X - 1,
-			Y: player.posY,
+			Y: player.gameObject.baseRect.Y,
 			W: 7,
 			H: 5,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for y := player.posY; y < player.posY+6 && !stopped; y++ {
+		for y := player.gameObject.baseRect.Y + 1; y < player.gameObject.baseRect.Y+6 && !stopped; y++ {
-			for x := player.posX - 1; x < player.posX+6; x++ {
+			for x := player.gameObject.baseRect.X - 1; x < player.gameObject.baseRect.X+6; x++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -277,23 +231,23 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posX--
+			player.gameObject.baseRect.X--
 		}
 
 	case 4: // Up-Right
 		collisionRect := sdl.Rect{
-			X: player.posX + 1,
+			X: player.gameObject.baseRect.X + 1,
-			Y: player.posY - 1,
+			Y: player.gameObject.baseRect.Y - 1,
 			W: 7,
 			H: 7,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for x := player.posX + 1; x < player.posX+8 && !stopped; x++ {
+		for x := player.gameObject.baseRect.X + 1; x < player.gameObject.baseRect.X+8 && !stopped; x++ {
-			for y := player.posY - 1; y < player.posY+7; y++ {
+			for y := player.gameObject.baseRect.Y - 1; y < player.gameObject.baseRect.Y+6; y++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -309,24 +263,24 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posX++
+			player.gameObject.baseRect.X++
-			player.posY--
+			player.gameObject.baseRect.Y--
 		}
 
 	case 5: // Up-Left
 		collisionRect := sdl.Rect{
-			X: player.posX - 1,
+			X: player.gameObject.baseRect.X - 1,
-			Y: player.posY - 1,
+			Y: player.gameObject.baseRect.Y - 1,
 			W: 7,
 			H: 7,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for x := player.posX - 1; x < player.posX+6 && !stopped; x++ {
+		for x := player.gameObject.baseRect.X - 1; x < player.gameObject.baseRect.X+6 && !stopped; x++ {
-			for y := player.posY - 1; y < player.posY+7; y++ {
+			for y := player.gameObject.baseRect.Y - 1; y < player.gameObject.baseRect.Y+6; y++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -342,24 +296,24 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posX--
+			player.gameObject.baseRect.X--
-			player.posY--
+			player.gameObject.baseRect.Y--
 		}
 
 	case 6: // Down-Right
 		collisionRect := sdl.Rect{
-			X: player.posX + 1,
+			X: player.gameObject.baseRect.X + 1,
-			Y: player.posY + 1,
+			Y: player.gameObject.baseRect.Y + 1,
 			W: 7,
 			H: 7,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for x := player.posX + 1; x < player.posX+8 && !stopped; x++ {
+		for x := player.gameObject.baseRect.X + 1; x < player.gameObject.baseRect.X+8 && !stopped; x++ {
-			for y := player.posY + 1; y < player.posY+8; y++ {
+			for y := player.gameObject.baseRect.Y + 1; y < player.gameObject.baseRect.Y+8; y++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -375,24 +329,24 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posX++
+			player.gameObject.baseRect.X++
-			player.posY++
+			player.gameObject.baseRect.Y++
 		}
 
 	case 7: // Down-Left
 		collisionRect := sdl.Rect{
-			X: player.posX - 1,
+			X: player.gameObject.baseRect.X - 1,
-			Y: player.posY + 1,
+			Y: player.gameObject.baseRect.Y + 1,
 			W: 7,
 			H: 7,
 		}
 		for _, opponent := range *players {
-			if opponent != player && opponent.cullingRect.HasIntersection(&collisionRect) {
+			if opponent != player && opponent.gameObject.baseRect.HasIntersection(&collisionRect) {
 				return false
 			}
 		}
-		for x := player.posX - 1; x < player.posX+6 && !stopped; x++ {
+		for x := player.gameObject.baseRect.X - 1; x < player.gameObject.baseRect.X+6 && !stopped; x++ {
-			for y := player.posY + 1; y < player.posY+8; y++ {
+			for y := player.gameObject.baseRect.Y + 1; y < player.gameObject.baseRect.Y+8; y++ {
 				digResult := player.digBlock(x, y, gameMap, isShooting)
 				if digResult == 1 {
 					shouldPenalizeDigging = true
@@ -408,13 +362,16 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 		}
 		if !stopped {
 			moved = true
-			player.posX--
+			player.gameObject.baseRect.X--
-			player.posY++
+			player.gameObject.baseRect.Y++
 		}
 	}
 
 	// Penalties and cooldown handling
 	if shouldPenalizeDigging {
+		if isShooting && player.ammunition < MaxAmmunition && rand.Intn(2) == 0 {
+			player.ammunition++
+		}
 		if ranOutOfEnergy {
 			player.digCooldown = DiggingCooldownNoEnergy
 		}
@@ -433,96 +390,327 @@ func (player *Player) tryMove(gameMap *GameMap, isShooting bool, players *[]*Pla
 	return
 }
 
-func (player *Player) shoot(super bool, bullets *[]*Bullet, format *sdl.PixelFormat) {
+func (player *Player) getRGBAColor(colorIndex uint8, format *sdl.PixelFormat) uint32 {
-	if (super && player.energy <= SuperShotCost) || (!super && player.energy <= NormalShotCost) {
+	var selectedColor color.Color
+	switch colorIndex {
+	case 0:
+		selectedColor = player.playerColors.tracks
+	case 1:
+		selectedColor = player.playerColors.body
+	case 2:
+		selectedColor = player.playerColors.cannon
+	}
+	var r, g, b, a uint8
+	if selectedColor != nil {
+		rt, gt, bt, at := selectedColor.RGBA()
+		r, g, b, a = uint8(rt), uint8(gt), uint8(bt), uint8(at)
+	}
+	return sdl.MapRGBA(format, r, g, b, a)
+
+}
+
+func (player *Player) shoot(super bool, bullets *[]*Bullet) {
+	if (super && (player.energy <= SuperShotCost || player.ammunition < MaxAmmunition)) || (!super && (player.energy <= NormalShotCost || player.ammunition < 1)) {
 		return
 	}
 	if player.shootCooldown == 0 {
 		var shootX, shootY int32
 
-		switch player.orientation {
+		switch player.gameObject.orientation {
 		case 0: // Up
-			shootY = player.posY - 1
+			shootY = player.gameObject.baseRect.Y - 1
-			shootX = player.posX + 2
+			shootX = player.gameObject.baseRect.X + 2
 			break
 		case 1: // Right
-			shootY = player.posY + 3
+			shootY = player.gameObject.baseRect.Y + 3
-			shootX = player.posX + 8
+			shootX = player.gameObject.baseRect.X + 8
 			break
 		case 2: // Down
-			shootX = player.posX + 2
+			shootX = player.gameObject.baseRect.X + 2
-			shootY = player.posY + 8
+			shootY = player.gameObject.baseRect.Y + 8
 			break
 		case 3: // Left
-			shootY = player.posY + 3
+			shootY = player.gameObject.baseRect.Y + 3
-			shootX = player.posX - 2
+			shootX = player.gameObject.baseRect.X - 2
 			break
 		case 4: // Up-Right
-			shootY = player.posY - 1
+			shootY = player.gameObject.baseRect.Y
-			shootX = player.posX + 5
+			shootX = player.gameObject.baseRect.X + 5
 			break
 		case 5: // Up-Left
-			shootY = player.posY - 1
+			shootY = player.gameObject.baseRect.Y
-			shootX = player.posX - 1
+			shootX = player.gameObject.baseRect.X - 1
 			break
 		case 6: // Down-Right
-			shootY = player.posY + 5
+			shootY = player.gameObject.baseRect.Y + 5
-			shootX = player.posX + 5
+			shootX = player.gameObject.baseRect.X + 5
 			break
 		case 7: // Down-Left
-			shootY = player.posY + 5
+			shootY = player.gameObject.baseRect.Y + 5
-			shootX = player.posX - 1
+			shootX = player.gameObject.baseRect.X - 1
 			break
 		}
 
 		// Set bullet color
-		r, g, b, a := sdl.GetRGBA(player.color2, format)
+		bulletColor := player.playerColors.body
-		bulletColor := color.RGBA{R: r, G: g, B: b, A: a}
 
 		// Create and add the bullet
 		*bullets = append(*bullets, &Bullet{
 			posX:      shootX,
 			posY:      shootY,
-			direction: player.orientation,
+			direction: player.gameObject.orientation,
 			color:     bulletColor,
 			super:     super,
 		})
-
 		// Set cooldown and decrease energy
 		player.shootCooldown = ShootCooldown
 		if super {
 			player.energy -= SuperShotCost
+			player.ammunition = 0
 		} else {
 			player.energy -= NormalShotCost
+			player.ammunition--
 		}
 	}
 }
 
-func createPlayer(color1 uint32, color2 uint32, color3 uint32, gameMap *GameMap, players *[]*Player) {
+func (player *Player) explode(bullets *[]*Bullet) {
+	// Set bullet color
+	bulletColor := player.playerColors.body
+
+	for x := player.gameObject.baseRect.X - BlastRadius; x < BlastRadius*2+1; x++ {
+		for y := player.gameObject.baseRect.Y - BlastRadius; y < BlastRadius*2+1; y++ {
+			// Create and add the bullet
+			*bullets = append(*bullets, &Bullet{
+				posX:      x,
+				posY:      y,
+				direction: uint8(rand.Intn(8)),
+				color:     bulletColor,
+				super:     true,
+			})
+
+		}
+	}
+}
+
+func createPlayers(amount uint8, playerColors []PlayerColors, keyMaps []KeyMap, joyMaps []JoyMap, gameMap *GameMap, players *[]*Player) {
+	joyStickCount := sdl.NumJoysticks()
+	if amount > uint8(len(keyMaps)+len(joyMaps)) || amount > uint8(len(keyMaps)+joyStickCount) {
+		panic("Too many players, not enough inputs")
+	}
+	if amount >= uint8(len(playerColors)) {
+		panic("Too many players, not enough colors")
+	}
+	addedKeyboardPlayers := 0
+	for i := uint8(0); i < amount; i++ {
+		var keyMap KeyMap
+		var joyMap JoyMap
+		var joyStick *sdl.Joystick
+
+		if (DoAllKeymapsPlayers && i <= uint8(len(keyMaps))) || (DoKeymapPlayer && i == 0) || (uint8(joyStickCount) <= i) {
+			keyMap = keyMaps[addedKeyboardPlayers]
+			addedKeyboardPlayers++
+		} else {
+			joyStickIndex := i - uint8(addedKeyboardPlayers)
+			joyMap = joyMaps[joyStickIndex]
+			joyStick = sdl.JoystickOpen(int(joyStickIndex))
+		}
+		createPlayer(
+			playerColors[i],
+			keyMap,
+			joyMap,
+			joyStick,
+			gameMap,
+			players,
+		)
+	}
+}
+
+func closeThings(players *[]*Player) {
+	for _, player := range *players {
+		if player.joyStick != nil {
+			player.joyStick.Close()
+		}
+		if player.window != nil {
+			player.window.Destroy()
+		}
+		if player.logicalSurface != nil {
+			player.logicalSurface.Free()
+		}
+		if player.playSurface != nil {
+			player.playSurface.Free()
+		}
+		if player.HUDSurface != nil {
+			player.HUDSurface.Free()
+		}
+	}
+}
+
+func createPlayer(playerColors PlayerColors, keyMap KeyMap, joyMap JoyMap, joyStick *sdl.Joystick, gameMap *GameMap, players *[]*Player) {
 	coordsAreValid := false
 	var posX, posY int32
-	for !coordsAreValid {
+	maxTries := 1000
-		posX = int32(16 + rand.Intn(int(gameMap.width-36)))
+	for !coordsAreValid && maxTries >= 0 {
-		posY = int32(16 + rand.Intn(int(gameMap.height-36)))
+		maxTries--
+		posX = int32(16 + rand.Intn(int(gameMap.width-43)))
+		posY = int32(16 + rand.Intn(int(gameMap.height-43)))
 
 		coordsAreValid = true
 		for _, player := range *players {
-			distance := (player.posX-posX)*(player.posX-posX) + (player.posY-posY)*(player.posY-posY)
+			distance := (player.gameObject.baseRect.X-posX)*(player.gameObject.baseRect.X-posX) +
+				(player.gameObject.baseRect.Y-posY)*(player.gameObject.baseRect.Y-posY)
 			if distance < 300*300 { // Check if distance is less than 300 units
 				coordsAreValid = false
 				break
 			}
 		}
+		if posX < 16 || posX > gameMap.width-36-7 || posY < 16 || posY > gameMap.height-36-7 {
+			coordsAreValid = false
+			break
+		}
+	}
+	if maxTries < 0 {
+		panic("Could not place all players, increase map size")
 	}
 
+	gameObject := &GameObject{}
+
+	gameObject.baseRect = sdl.Rect{
+		X: posX,
+		Y: posY,
+		W: 7,
+		H: 7,
+	}
+
+	gameObject.addColor(playerColors.tracks)
+	gameObject.addColor(playerColors.body)
+	gameObject.addColor(playerColors.cannon)
+
+	gameObject.orientation = 0 // Up
+	gameObject.addColoredRect(0, 1, 1, 6, 0)
+	gameObject.addColoredRect(4, 1, 1, 6, 0)
+	gameObject.addColoredRect(1, 2, 3, 4, 1)
+	gameObject.addColoredRect(2, 0, 1, 4, 2)
+
+	gameObject.orientation = 1 // Right
+	gameObject.addColoredRect(1, 1, 6, 1, 0)
+	gameObject.addColoredRect(1, 5, 6, 1, 0)
+	gameObject.addColoredRect(2, 2, 4, 3, 1)
+	gameObject.addColoredRect(4, 3, 4, 1, 2)
+
+	gameObject.orientation = 2 // Down
+	gameObject.addColoredRect(0, 1, 1, 6, 0)
+	gameObject.addColoredRect(4, 1, 1, 6, 0)
+	gameObject.addColoredRect(1, 2, 3, 4, 1)
+	gameObject.addColoredRect(2, 4, 1, 4, 2)
+
+	gameObject.orientation = 3 // Left
+	gameObject.addColoredRect(1, 1, 6, 1, 0)
+	gameObject.addColoredRect(1, 5, 6, 1, 0)
+	gameObject.addColoredRect(2, 2, 4, 3, 1)
+	gameObject.addColoredRect(0, 3, 4, 1, 2)
+
+	gameObject.orientation = 4 // Up-Right
+	gameObject.addColoredRect(3, 0, 1, 1, 0)
+	gameObject.addColoredRect(2, 1, 1, 1, 0)
+	gameObject.addColoredRect(1, 2, 1, 1, 0)
+	gameObject.addColoredRect(0, 3, 1, 1, 0)
+	gameObject.addColoredRect(6, 3, 1, 1, 0)
+	gameObject.addColoredRect(5, 4, 1, 1, 0)
+	gameObject.addColoredRect(4, 5, 1, 1, 0)
+	gameObject.addColoredRect(3, 6, 1, 1, 0)
+
+	gameObject.addColoredRect(3, 1, 1, 1, 1)
+	gameObject.addColoredRect(2, 2, 2, 1, 1)
+	gameObject.addColoredRect(1, 3, 2, 1, 1)
+
+	gameObject.addColoredRect(4, 3, 2, 1, 1)
+	gameObject.addColoredRect(2, 4, 3, 1, 1)
+	gameObject.addColoredRect(3, 5, 1, 1, 1)
+
+	gameObject.addColoredRect(5, 1, 1, 1, 2)
+	gameObject.addColoredRect(4, 2, 1, 1, 2)
+	gameObject.addColoredRect(3, 3, 1, 1, 2)
+
+	// Up-Left orientation (Y-axis reflection)
+	gameObject.orientation = 5 // Up-Left
+	gameObject.addColoredRect(3, 0, 1, 1, 0)
+	gameObject.addColoredRect(4, 1, 1, 1, 0)
+	gameObject.addColoredRect(5, 2, 1, 1, 0)
+	gameObject.addColoredRect(6, 3, 1, 1, 0)
+	gameObject.addColoredRect(0, 3, 1, 1, 0)
+	gameObject.addColoredRect(1, 4, 1, 1, 0)
+	gameObject.addColoredRect(2, 5, 1, 1, 0)
+	gameObject.addColoredRect(3, 6, 1, 1, 0)
+
+	gameObject.addColoredRect(3, 1, 1, 1, 1)
+	gameObject.addColoredRect(3, 2, 2, 1, 1)
+	gameObject.addColoredRect(4, 3, 2, 1, 1)
+
+	gameObject.addColoredRect(1, 3, 2, 1, 1)
+	gameObject.addColoredRect(2, 4, 3, 1, 1)
+	gameObject.addColoredRect(3, 5, 1, 1, 1)
+
+	gameObject.addColoredRect(1, 1, 1, 1, 2)
+	gameObject.addColoredRect(2, 2, 1, 1, 2)
+	gameObject.addColoredRect(3, 3, 1, 1, 2)
+
+	// Down-Right orientation (X-axis reflection)
+	gameObject.orientation = 6 // Down-Right
+	gameObject.addColoredRect(3, 6, 1, 1, 0)
+	gameObject.addColoredRect(2, 5, 1, 1, 0)
+	gameObject.addColoredRect(1, 4, 1, 1, 0)
+	gameObject.addColoredRect(0, 3, 1, 1, 0)
+	gameObject.addColoredRect(6, 3, 1, 1, 0)
+	gameObject.addColoredRect(5, 2, 1, 1, 0)
+	gameObject.addColoredRect(4, 1, 1, 1, 0)
+	gameObject.addColoredRect(3, 0, 1, 1, 0)
+
+	gameObject.addColoredRect(3, 5, 1, 1, 1)
+	gameObject.addColoredRect(2, 4, 2, 1, 1)
+	gameObject.addColoredRect(1, 3, 2, 1, 1)
+
+	gameObject.addColoredRect(4, 3, 2, 1, 1)
+	gameObject.addColoredRect(2, 2, 3, 1, 1)
+	gameObject.addColoredRect(3, 1, 1, 1, 1)
+
+	gameObject.addColoredRect(5, 5, 1, 1, 2)
+	gameObject.addColoredRect(4, 4, 1, 1, 2)
+	gameObject.addColoredRect(3, 3, 1, 1, 2)
+
+	// Down-Left orientation (XY reflection)
+	gameObject.orientation = 7 // Down-Left
+	gameObject.addColoredRect(3, 6, 1, 1, 0)
+	gameObject.addColoredRect(4, 5, 1, 1, 0)
+	gameObject.addColoredRect(5, 4, 1, 1, 0)
+	gameObject.addColoredRect(6, 3, 1, 1, 0)
+	gameObject.addColoredRect(0, 3, 1, 1, 0)
+	gameObject.addColoredRect(1, 2, 1, 1, 0)
+	gameObject.addColoredRect(2, 1, 1, 1, 0)
+	gameObject.addColoredRect(3, 0, 1, 1, 0)
+
+	gameObject.addColoredRect(3, 1, 1, 1, 1)
+	gameObject.addColoredRect(2, 2, 3, 1, 1)
+	gameObject.addColoredRect(1, 3, 2, 1, 1)
+
+	gameObject.addColoredRect(4, 3, 2, 1, 1)
+	gameObject.addColoredRect(3, 4, 2, 1, 1)
+	gameObject.addColoredRect(3, 5, 1, 1, 1)
+
+	gameObject.addColoredRect(1, 5, 1, 1, 2)
+	gameObject.addColoredRect(2, 4, 1, 1, 2)
+	gameObject.addColoredRect(3, 3, 1, 1, 2)
+
+	gameObject.orientation = 0
+
 	*players = append(*players, &Player{
-		posX:        posX,
+		playerColors: playerColors,
-		posY:        posY,
+		keyMap:       keyMap,
-		orientation: 3,
+		joyMap:       joyMap,
-		color1:      color1,
+		joyStick:     joyStick,
-		color2:      color2,
+		shields:      MaxShields,
-		color3:      color3,
+		energy:       MaxEnergy,
-		health:      MaxHealth,
+		gameObject:   gameObject,
-		energy:      MaxEnergy,
+		local:        true,
 	})
 }

playerData.go

@@ -0,0 +1,387 @@
+package main
+
+import (
+	"github.com/veandco/go-sdl2/sdl"
+	"image/color"
+)
+
+type KeyMap struct {
+	exit  int
+	shoot int
+	super int
+	up    int
+	down  int
+	left  int
+	right int
+}
+
+var keyMaps = []KeyMap{
+	{
+		exit:  sdl.SCANCODE_ESCAPE,
+		shoot: sdl.SCANCODE_SPACE,
+		super: sdl.SCANCODE_LCTRL,
+		up:    sdl.SCANCODE_W,
+		down:  sdl.SCANCODE_S,
+		left:  sdl.SCANCODE_A,
+		right: sdl.SCANCODE_D,
+	},
+	{
+		exit:  sdl.SCANCODE_END,
+		shoot: sdl.SCANCODE_RETURN,
+		super: sdl.SCANCODE_RCTRL,
+		up:    sdl.SCANCODE_UP,
+		down:  sdl.SCANCODE_DOWN,
+		left:  sdl.SCANCODE_LEFT,
+		right: sdl.SCANCODE_RIGHT,
+	},
+}
+
+type JoyMap struct {
+	xAxis int
+	yAxis int
+
+	exitButton  int
+	shootButton int
+	superButton int
+
+	upButton    int
+	downButton  int
+	leftButton  int
+	rightButton int
+}
+
+var joyMaps = []JoyMap{
+	{
+		xAxis: 0,
+		yAxis: 1,
+
+		exitButton:  0,
+		shootButton: 1,
+		superButton: 2,
+
+		upButton:    3,
+		downButton:  4,
+		leftButton:  5,
+		rightButton: 6,
+	},
+}
+
+type PlayerColors struct {
+	tracks color.Color
+	body   color.Color
+	cannon color.Color
+}
+
+func getNeededPlayers() (neededPlayers uint8) {
+	neededPlayers = 0
+	if DoAllKeymapsPlayers {
+		neededPlayers += uint8(len(keyMaps))
+	} else if DoKeymapPlayer && len(keyMaps) > 0 {
+		neededPlayers++
+	}
+	if DoJoyStickPlayers {
+		neededPlayers += uint8(sdl.NumJoysticks())
+	}
+	if neededPlayers < 2 {
+		neededPlayers = 2
+	}
+	return neededPlayers
+}
+
+var playerColors []PlayerColors
+
+func initPlayerColors() {
+	playerColors = []PlayerColors{
+		{
+			tracks: color.RGBA{B: 182, A: 255},
+			body:   color.RGBA{R: 44, G: 44, B: 255, A: 255},
+			cannon: color.RGBA{R: 243, G: 235, B: 28, A: 255},
+		},
+		{
+			tracks: color.RGBA{R: 44, G: 184, B: 44, A: 255},
+			body:   color.RGBA{G: 249, A: 255},
+			cannon: color.RGBA{R: 243, G: 235, B: 28, A: 255},
+		},
+		// Set 3
+		{
+			tracks: color.RGBA{R: 255, A: 255},         // Bright Red
+			body:   color.RGBA{G: 255, B: 255, A: 255}, // Cyan
+			cannon: color.RGBA{R: 255, G: 165, A: 255}, // Orange
+		},
+		// Set 4
+		{
+			tracks: color.RGBA{R: 75, B: 130, A: 255},         // Indigo
+			body:   color.RGBA{R: 255, G: 20, B: 147, A: 255}, // Deep Pink
+			cannon: color.RGBA{G: 128, B: 128, A: 255},        // Teal
+		},
+		// Set 5
+		{
+			tracks: color.RGBA{R: 255, G: 105, B: 180, A: 255}, // Hot Pink
+			body:   color.RGBA{R: 34, G: 139, B: 34, A: 255},   // Forest Green
+			cannon: color.RGBA{A: 255},                         // Black
+		},
+		// Set 6
+		{
+			tracks: color.RGBA{R: 128, A: 255},         // Maroon
+			body:   color.RGBA{R: 255, G: 255, A: 255}, // Yellow
+			cannon: color.RGBA{B: 128, A: 255},         // Navy Blue
+		},
+		// Set 7
+		{
+			tracks: color.RGBA{R: 255, G: 69, A: 255},        // Red-Orange
+			body:   color.RGBA{G: 206, B: 209, A: 255},       // Dark Turquoise
+			cannon: color.RGBA{R: 50, G: 205, B: 50, A: 255}, // Lime Green
+		},
+		// Set 8
+		{
+			tracks: color.RGBA{R: 128, G: 128, A: 255},         // Olive
+			body:   color.RGBA{R: 255, G: 105, B: 180, A: 255}, // Hot Pink
+			cannon: color.RGBA{G: 191, B: 255, A: 255},         // Deep Sky Blue
+		},
+		// Set 9
+		{
+			tracks: color.RGBA{R: 255, G: 20, B: 20, A: 255},  // Bright Red
+			body:   color.RGBA{G: 255, B: 127, A: 255},        // Spring Green
+			cannon: color.RGBA{R: 186, G: 85, B: 211, A: 255}, // Medium Orchid
+		},
+		// Set 10
+		{
+			tracks: color.RGBA{R: 255, G: 215, A: 255},         // Gold
+			body:   color.RGBA{B: 139, A: 255},                 // Dark Blue
+			cannon: color.RGBA{R: 238, G: 130, B: 238, A: 255}, // Violet
+		},
+		// Set 11
+		{
+			tracks: color.RGBA{R: 210, G: 105, B: 30, A: 255},  // Chocolate
+			body:   color.RGBA{R: 72, G: 61, B: 139, A: 255},   // Dark Slate Blue
+			cannon: color.RGBA{R: 152, G: 251, B: 152, A: 255}, // Pale Green
+		},
+		// Set 12
+		{
+			tracks: color.RGBA{R: 220, G: 20, B: 60, A: 255},   // Crimson
+			body:   color.RGBA{R: 255, G: 250, B: 205, A: 255}, // Lemon Chiffon
+			cannon: color.RGBA{G: 128, A: 255},                 // Green
+		},
+		// Set 13
+		{
+			tracks: color.RGBA{R: 139, B: 139, A: 255},         // Dark Magenta
+			body:   color.RGBA{R: 144, G: 238, B: 144, A: 255}, // Light Green
+			cannon: color.RGBA{R: 255, G: 69, A: 255},          // Orange Red
+		},
+		// Set 14
+		{
+			tracks: color.RGBA{B: 255, A: 255},                 // Blue
+			body:   color.RGBA{R: 240, G: 128, B: 128, A: 255}, // Light Coral
+			cannon: color.RGBA{R: 218, G: 165, B: 32, A: 255},  // Goldenrod
+		},
+		// Set 15
+		{
+			tracks: color.RGBA{R: 65, G: 105, B: 225, A: 255},  // Royal Blue
+			body:   color.RGBA{R: 255, G: 222, B: 173, A: 255}, // Navajo White
+			cannon: color.RGBA{R: 255, B: 255, A: 255},         // Magenta
+		},
+		// Set 16
+		{
+			tracks: color.RGBA{R: 147, G: 112, B: 219, A: 255}, // Medium Purple
+			body:   color.RGBA{G: 255, B: 127, A: 255},         // Spring Green
+			cannon: color.RGBA{R: 255, G: 255, A: 255},         // Yellow
+		},
+		// Set 17
+		{
+			tracks: color.RGBA{R: 255, G: 140, A: 255},       // Dark Orange
+			body:   color.RGBA{R: 127, G: 255, A: 255},       // Chartreuse
+			cannon: color.RGBA{R: 25, G: 25, B: 112, A: 255}, // Midnight Blue
+		},
+		// Set 18
+		{
+			tracks: color.RGBA{R: 240, G: 230, B: 140, A: 255}, // Khaki
+			body:   color.RGBA{R: 173, G: 216, B: 230, A: 255}, // Light Blue
+			cannon: color.RGBA{R: 128, B: 128, A: 255},         // Purple
+		},
+		// Set 19
+		{
+			tracks: color.RGBA{R: 70, G: 130, B: 180, A: 255}, // Steel Blue
+			body:   color.RGBA{R: 255, G: 99, B: 71, A: 255},  // Tomato
+			cannon: color.RGBA{R: 154, G: 205, B: 50, A: 255}, // Yellow Green
+		},
+		// Set 20
+		{
+			tracks: color.RGBA{R: 106, G: 90, B: 205, A: 255},  // Slate Blue
+			body:   color.RGBA{R: 255, G: 182, B: 193, A: 255}, // Light Pink
+			cannon: color.RGBA{R: 46, G: 139, B: 87, A: 255},   // Sea Green
+		},
+		// Set 21
+		{
+			tracks: color.RGBA{R: 199, G: 21, B: 133, A: 255},  // Medium Violet Red
+			body:   color.RGBA{G: 255, B: 255, A: 255},         // Aqua
+			cannon: color.RGBA{R: 255, G: 160, B: 122, A: 255}, // Light Salmon
+		},
+		// Set 22
+		{
+			tracks: color.RGBA{B: 139, A: 255},                // Dark Blue
+			body:   color.RGBA{R: 173, G: 255, B: 47, A: 255}, // Green Yellow
+			cannon: color.RGBA{R: 255, G: 228, B: 181, A: 255},
+		},
+		// Set 23
+		{
+			tracks: color.RGBA{R: 205, G: 92, B: 92, A: 255},   // Indian Red
+			body:   color.RGBA{G: 191, B: 255, A: 255},         // Deep Sky Blue
+			cannon: color.RGBA{R: 255, G: 255, B: 224, A: 255}, // Light Yellow
+		},
+		// Set 24
+		{
+			tracks: color.RGBA{R: 139, G: 69, B: 19, A: 255},  // Saddle Brown
+			body:   color.RGBA{R: 255, G: 99, B: 71, A: 255},  // Tomato
+			cannon: color.RGBA{R: 70, G: 130, B: 180, A: 255}, // Steel Blue
+		},
+		// Set 25
+		{
+			tracks: color.RGBA{R: 135, G: 206, B: 250, A: 255}, // Light Sky Blue
+			body:   color.RGBA{R: 255, G: 105, B: 180, A: 255}, // Hot Pink
+			cannon: color.RGBA{R: 184, G: 134, B: 11, A: 255},  // Dark Goldenrod
+		},
+		// Set 26
+		{
+			tracks: color.RGBA{G: 255, A: 255},                 // Lime
+			body:   color.RGBA{R: 255, G: 228, B: 225, A: 255}, // Misty Rose
+			cannon: color.RGBA{R: 128, A: 255},                 // Maroon
+		},
+		// Set 27
+		{
+			tracks: color.RGBA{R: 255, B: 255, A: 255},         // Magenta
+			body:   color.RGBA{G: 100, A: 255},                 // Dark Green
+			cannon: color.RGBA{R: 255, G: 222, B: 173, A: 255}, // Navajo White
+		},
+		// Set 28
+		{
+			tracks: color.RGBA{R: 138, G: 43, B: 226, A: 255},  // Blue Violet
+			body:   color.RGBA{R: 255, G: 228, B: 181, A: 255}, // Moccasin
+			cannon: color.RGBA{R: 47, G: 79, B: 79, A: 255},    // Dark Slate Gray
+		},
+		// Set 29
+		{
+			tracks: color.RGBA{R: 255, G: 182, B: 193, A: 255}, // Light Pink
+			body:   color.RGBA{G: 128, B: 128, A: 255},         // Teal
+			cannon: color.RGBA{R: 255, G: 255, B: 240, A: 255}, // Ivory
+		},
+		// Set 30
+		{
+			tracks: color.RGBA{R: 255, G: 127, B: 80, A: 255}, // Coral
+			body:   color.RGBA{R: 25, G: 25, B: 112, A: 255},  // Midnight Blue
+			cannon: color.RGBA{R: 173, G: 255, B: 47, A: 255}, // Green Yellow
+		},
+		// Set 31
+		{
+			tracks: color.RGBA{R: 218, G: 112, B: 214, A: 255}, // Orchid
+			body:   color.RGBA{R: 244, G: 164, B: 96, A: 255},  // Sandy Brown
+			cannon: color.RGBA{R: 255, G: 239, B: 213, A: 255}, // Papaya Whip
+		},
+		// Set 32
+		{
+			tracks: color.RGBA{G: 250, B: 154, A: 255},        // Medium Spring Green
+			body:   color.RGBA{R: 138, G: 43, B: 226, A: 255}, // Blue Violet
+			cannon: color.RGBA{R: 255, G: 69, A: 255},         // Orange Red
+		},
+	}
+}
+
+func handleInput(keyboard []uint8, bullets *[]*Bullet, player *Player, gameMap *GameMap, format *sdl.PixelFormat, players *[]*Player) (bool, bool) {
+	if !player.local || player.shields <= 0 || player.shields > MaxShields {
+		return true, false
+	}
+	shoot := false
+	super := false
+
+	// Flags to track movement in each direction
+	moveUp := false
+	moveDown := false
+	moveLeft := false
+	moveRight := false
+
+	if player.keyMap.exit != player.keyMap.shoot {
+		// Process keyboard input
+		for key, value := range keyboard {
+			if value == 0 {
+				continue
+			}
+
+			if key == player.keyMap.exit {
+				return false, shoot
+			} else if key == player.keyMap.shoot {
+				shoot = true
+			} else if key == player.keyMap.super {
+				super = true
+			} else if key == player.keyMap.up {
+				moveUp = true
+			} else if key == player.keyMap.down {
+				moveDown = true
+			} else if key == player.keyMap.left {
+				moveLeft = true
+			} else if key == player.keyMap.right {
+				moveRight = true
+			}
+		}
+	} else if player.joyStick != nil {
+		if player.joyStick.NumAxes() > player.joyMap.xAxis+1 &&
+			player.joyStick.NumAxes() > player.joyMap.yAxis+1 &&
+			player.joyMap.exitButton != player.joyMap.shootButton {
+
+			xAxis := player.joyStick.Axis(player.joyMap.xAxis)
+			yAxis := player.joyStick.Axis(player.joyMap.yAxis)
+
+			moveRight = xAxis > JoyStickDeadZone
+			moveLeft = xAxis < -JoyStickDeadZone
+			moveUp = yAxis > JoyStickDeadZone
+			moveDown = yAxis < -JoyStickDeadZone
+
+		} else {
+			moveUp = player.joyStick.Button(player.joyMap.upButton) == sdl.PRESSED
+			moveDown = player.joyStick.Button(player.joyMap.downButton) == sdl.PRESSED
+			moveLeft = player.joyStick.Button(player.joyMap.leftButton) == sdl.PRESSED
+			moveRight = player.joyStick.Button(player.joyMap.rightButton) == sdl.PRESSED
+		}
+		if player.joyStick.Button(player.joyMap.exitButton) == sdl.PRESSED {
+			return false, shoot
+		}
+		if player.joyStick.Button(player.joyMap.shootButton) == sdl.PRESSED {
+			shoot = true
+		}
+		if player.joyStick.Button(player.joyMap.superButton) == sdl.PRESSED {
+			super = true
+		}
+
+	}
+
+	// Handle shooting after the loop
+	if shoot {
+		player.shoot(super, bullets)
+	}
+
+	// Determine player orientation for diagonal movement
+	if moveUp && moveRight {
+		player.gameObject.orientation = 4 // Up-Right
+	} else if moveUp && moveLeft {
+		player.gameObject.orientation = 5 // Up-Left
+	} else if moveDown && moveRight {
+		player.gameObject.orientation = 6 // Down-Right
+	} else if moveDown && moveLeft {
+		player.gameObject.orientation = 7 // Down-Left
+	} else if moveUp {
+		player.gameObject.orientation = 0 // Up
+	} else if moveRight {
+		player.gameObject.orientation = 1 // Right
+	} else if moveDown {
+		player.gameObject.orientation = 2 // Down
+	} else if moveLeft {
+		player.gameObject.orientation = 3 // Left
+	}
+
+	// Handle movement after the loop
+	if moveUp || moveDown || moveLeft || moveRight {
+		if player.tryMove(gameMap, shoot, players) {
+			player.energy -= MovementCost
+		}
+	}
+
+	return true, shoot
+}

profiler.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+func profileSection(section func()) uint64 {
+	start := sdl.GetTicks64()
+	section()
+	end := sdl.GetTicks64()
+	return end - start
+}
+
+func logProfilingInfo(handleEventsTime, renderTime, scaleTime, frameTime, frameCount uint64) {
+	floatFrame := float64(frameCount)
+	fmt.Printf("Average handleEvents time: %f ms\n", float64(handleEventsTime)/floatFrame)
+	fmt.Printf("Average render time: %f ms\n", float64(renderTime)/floatFrame)
+	fmt.Printf("Average scaling time: %f ms\n", float64(scaleTime)/floatFrame)
+	fmt.Printf("Average frame time: %f ms\n", float64(frameTime)/floatFrame)
+	fmt.Print("\n")
+}
+
+func resetProfilingCounters(handleEventsTime, renderTime, scaleTime, frameTime *uint64, frameCount *uint64) {
+	*handleEventsTime = 0
+	*renderTime = 0
+	*scaleTime = 0
+	*frameTime = 0
+	*frameCount = 0
+}
+
+func enforceFrameRate(frameStart uint64, targetFPS int) {
+	frameDuration := 1000 / targetFPS
+	elapsed := sdl.GetTicks64() - frameStart
+	if delay := frameDuration - int(elapsed); delay > 0 {
+		sdl.Delay(uint32(delay))
+	}
+}