120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
#include <SDL2/SDL.h>
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#include <SDL2/SDL_ttf.h>
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#include <stdio.h>
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#include <stdlib.h>
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//Screen dimension constants
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const int SCREEN_WIDTH = 640;
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const int SCREEN_HEIGHT = 480;
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void renderText(SDL_Renderer *renderer, TTF_Font *font, char *string, uint16_t x, uint16_t y, uint8_t r, uint8_t g,
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uint8_t b, uint8_t a) {
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SDL_Texture *fontTempTex;
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SDL_Surface *fontTempSurf;
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SDL_Color color = {r, g, b, a};
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fontTempSurf = TTF_RenderText_Blended(font, string, color);
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fontTempTex = SDL_CreateTextureFromSurface(renderer, fontTempSurf);
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int iW, iH;
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SDL_QueryTexture(fontTempTex, NULL, NULL, &iW, &iH);
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SDL_Rect srcRect;
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srcRect.x = 0;
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srcRect.y = 0;
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srcRect.w = iW;
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srcRect.h = iH;
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SDL_Rect dstRect;
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dstRect.x = x;
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dstRect.y = y;
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dstRect.w = iW;
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dstRect.h = iH;
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SDL_RenderCopy(renderer, fontTempTex, &srcRect, &dstRect);
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SDL_FreeSurface(fontTempSurf);
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SDL_DestroyTexture(fontTempTex);
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}
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int main(int argc, char *args[]) {
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//The window we'll be rendering to
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SDL_Window *window = NULL;
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//The surface contained by the window
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SDL_Renderer *renderer = NULL;
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SDL_Rect rect1;
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TTF_Font *gFont;
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//Initialize SDL
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if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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printf("SDL could not initialize! SDL_Error: %s\n", SDL_GetError());
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return 1;
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}
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//Initialize SDL_ttf
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if (TTF_Init() == -1) {
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printf("SDL_ttf could not initialize! SDL_ttf Error: %s\n", TTF_GetError());
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return 1;
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}
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gFont = TTF_OpenFont("../rasterthingy.ttf", 50);
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if (gFont == NULL) {
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printf("Failed to load lazy font! SDL_ttf Error: %s\n", TTF_GetError());
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return 1;
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}
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//Create window
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window = SDL_CreateWindow("SDLko", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH,
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SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
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if (window == NULL) {
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printf("Window could not be created! SDL_Error: %s\n", SDL_GetError());
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return 1;
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}
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//Get window surface
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renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
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//Hack to get window to stay up
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SDL_Event e;
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bool quit = false;
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Uint64 start;
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Uint64 end;
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while (!quit) {
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start = SDL_GetTicks64();
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while (SDL_PollEvent(&e)) {
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if (e.type == SDL_QUIT) quit = true;
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}
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SDL_SetRenderDrawColor(renderer, 128, 0, 0, 255);
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SDL_RenderClear(renderer);
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SDL_SetRenderDrawColor(renderer, 0, 128, 0, 255);
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rect1.x = (rect1.x + 1) % 400;
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rect1.y = 10;
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rect1.w = 50;
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rect1.h = 10;
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SDL_RenderFillRect(renderer, &rect1);
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char textTemp[12];
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sprintf(textTemp, "%d", rect1.x);
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renderText(renderer, gFont, textTemp, 100, 100, 255, 255, 255, 255);
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SDL_RenderPresent(renderer);
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end = SDL_GetTicks64();
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SDL_Delay((1000 / 60) - (end - start));
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}
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TTF_CloseFont(gFont);
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//Destroy window
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SDL_DestroyWindow(window);
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//Quit SDL subsystems
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SDL_Quit();
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return 0;
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} |