Hopefully last commit

util/button.c

@@ -0,0 +1,212 @@
+//
+// Created by bruno on 11.6.2025.
+//
+
+#include "button.h"
+#include "gamestate.h"
+
+void onStart() {
+    genInitMap();
+    screenType = SCREEN_GAME;
+}
+
+void onContinue() {
+    if (loadGameState(autosaveName, &mainPlayer)) {
+        genInitMap();
+    }
+    screenType = SCREEN_GAME;
+}
+
+void onCredits() {
+    screenType = SCREEN_CREDITS;
+}
+
+void onNext() {
+    if (!waveInfo.waveRunning && waveInfo.waveTimer > 60 * 5) {
+        waveInfo.waveTimer = 60 * 5;
+    }
+}
+
+
+void onQuit() {
+    running = false;
+}
+
+void onBack() {
+    screenType = SCREEN_MENU;
+}
+
+void onAtlas() {
+    screenType = SCREEN_ATLAS;
+}
+
+void onFont() {
+    screenType = SCREEN_FONTS;
+}
+
+Button buttons[5][BUTTON_COUNT];
+
+void initButtons(void) {
+    buttons[0][0] = (Button){
+            .label = "New",
+            .rect = {110, DISPLAY_HEIGHT / 2, 125, 40},
+            .color = {100, 100, 0, 255},
+            .callback = onStart,
+            .font = &fonts[1]
+    };
+
+    buttons[0][1] = (Button){
+            .label = "Continue",
+            .rect = {100, DISPLAY_HEIGHT / 2 + 45, 150, 40},
+            .color = {0, 100, 0, 255},
+            .callback = onContinue,
+            .font = &fonts[1]
+    };
+
+    buttons[0][2] = (Button){
+            .label = "Credits",
+            .rect = {DISPLAY_WIDTH - 200, DISPLAY_HEIGHT - 120, 150, 40},
+            .color = {0, 50, 50, 255},
+            .callback = onCredits,
+            .font = &fonts[1]
+    };
+
+    buttons[0][3] = (Button){
+            .label = "Exit",
+            .rect = {DISPLAY_WIDTH - 200, DISPLAY_HEIGHT - 40, 100, 40},
+            .color = {100, 0, 0, 255},
+            .callback = onQuit,
+            .font = &fonts[1]
+    };
+
+    buttons[1][0] = (Button){
+            .label = "Back",
+            .rect = {DISPLAY_WIDTH / 2 - (100 / 2), DISPLAY_HEIGHT - 40, 100, 40},
+            .color = {100, 0, 0, 255},
+            .callback = onBack,
+            .font = &fonts[1]
+    };
+
+    buttons[1][1] = (Button){
+            .label = "Font atlas",
+            .rect = {DISPLAY_WIDTH - 900, DISPLAY_HEIGHT - 40, 200, 40},
+            .color = {100, 0, 0, 255},
+            .callback = onFont,
+            .font = &fonts[1]
+    };
+
+    buttons[1][2] = (Button){
+            .label = "Texture atlas",
+            .rect = {DISPLAY_WIDTH - 300, DISPLAY_HEIGHT - 40, 250, 40},
+            .color = {100, 0, 0, 255},
+            .callback = onAtlas,
+            .font = &fonts[1]
+    };
+
+    buttons[2][0] = (Button){
+            .label = "Next",
+            .rect = {395, 0, 55, 80},
+            .color = {64, 64, 64, 64},
+            .callback = onNext,
+            .font = &fonts[2]
+    };
+
+    buttons[3][0] = (Button){
+            .label = "Back",
+            .rect = {DISPLAY_WIDTH / 2 - (400 / 2), DISPLAY_HEIGHT - 40, 100, 40},
+            .color = {100, 0, 0, 255},
+            .callback = onCredits,
+            .font = &fonts[1]
+    };
+
+    buttons[4][0] = (Button){
+            .label = "Back",
+            .rect = {DISPLAY_WIDTH / 2 - (400 / 2), DISPLAY_HEIGHT - 40, 100, 40},
+            .color = {100, 0, 0, 255},
+            .callback = onCredits,
+            .font = &fonts[1]
+    };
+}
+
+
+void renderButtons(SDL_Renderer *renderer, Player player) {
+    for (int i = 0; i < BUTTON_COUNT; i++) {
+        renderButton(renderer, buttons[screenType][i], player);
+    }
+}
+
+
+void renderButton(SDL_Renderer *renderer, Button btn, Player player) {
+    if (btn.font == NULL || btn.label == NULL || strlen(btn.label) == 0) {
+        return;
+    }
+
+    // Check for hover/click
+    bool hovered = (player.cursor.windowX >= btn.rect.x && player.cursor.windowX <= btn.rect.x + btn.rect.w &&
+                    player.cursor.windowY >= btn.rect.y && player.cursor.windowY <= btn.rect.y + btn.rect.h);
+
+    // Set color and draw background
+    SDL_Color bgColor = btn.color;
+    if (hovered) {
+        bgColor.a = btn.color.a / 2;
+    }
+    SDL_SetRenderDrawColor(renderer, bgColor.r, bgColor.g, bgColor.b, bgColor.a);
+    SDL_RenderFillRect(renderer, &btn.rect);
+
+    // Split label into lines
+    const char *label = btn.label;
+    const int maxLines = 10; // Hard cap for sanity
+    const char *lines[maxLines];
+    int lineCount = 0;
+
+    lines[lineCount++] = label;
+    for (const char *p = label; *p && lineCount < maxLines; p++) {
+        if (*p == '\n') {
+            lines[lineCount++] = p + 1;
+        }
+    }
+
+    // Get length of each line and find max width (for centering)
+    int maxLineWidth = 0;
+    int lineWidths[maxLines];
+    int fontSize = btn.font->size;
+
+    for (int i = 0; i < lineCount; i++) {
+        const char *lineStart = lines[i];
+        const char *lineEnd = strchr(lineStart, '\n');
+        int lineLen = lineEnd ? (lineEnd - lineStart) : strlen(lineStart);
+
+        int lineWidth = lineLen * fontSize;
+        lineWidths[i] = lineWidth;
+        if (lineWidth > maxLineWidth) {
+            maxLineWidth = lineWidth;
+        }
+    }
+
+    // Calculate starting Y to vertically center all lines
+    int totalHeight = lineCount * fontSize;
+    int startY = btn.rect.y + (btn.rect.h - totalHeight) / 2;
+
+    // Render each line centered horizontally
+    for (int i = 0; i < lineCount; i++) {
+        const char *lineStart = lines[i];
+        const char *lineEnd = strchr(lineStart, '\n');
+        int lineLen = lineEnd ? (lineEnd - lineStart) : strlen(lineStart);
+
+        char buffer[256];
+        strncpy(buffer, lineStart, lineLen);
+        buffer[lineLen] = '\0';
+
+        int x = btn.rect.x + (btn.rect.w - lineWidths[i]) / 2;
+        int y = startY + i * fontSize;
+
+        renderText(renderer, *btn.font, buffer, x, y);
+    }
+
+    // Trigger callback if clicked
+    if (hovered && (player.mouseButtons & SDL_BUTTON_LMASK)) {
+        if (btn.callback) {
+            btn.callback();
+        }
+    }
+}