diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main.c | 41 |
1 files changed, 24 insertions, 17 deletions
@@ -31,6 +31,7 @@ #include <stdio.h> #include <stdlib.h> #include <stdbool.h> +#include <math.h> #include <SDL.h> #include "controller.h" @@ -43,7 +44,6 @@ main (int argc, char *args[]) { SDL_Window* window = NULL; - SDL_Surface* surface = NULL; if (SDL_Init(SDL_INIT_VIDEO) < 0) { fprintf( @@ -71,18 +71,23 @@ main (int argc, return EXIT_FAILURE; } + SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED); + + if (renderer == NULL) { + fprintf(stderr, "Could not create renderer: %s\n", SDL_GetError()); + return EXIT_FAILURE; + } + SDL_Rect rect = { .x = 0, .y = 0, .w = 20, .h = 20 }; bool quit = false; controller_t ctrl = {0}; while (!quit) { - surface = SDL_GetWindowSurface(window); - SDL_FillRect( - surface, - NULL, - SDL_MapRGB(surface->format, 0xFF, 0xFF, 0xFF) - ); + SDL_SetRenderDrawColor(renderer, 0, 0, 0, 1); + SDL_RenderClear(renderer); + + uint64_t start = SDL_GetPerformanceCounter(); SDL_Event event; while (SDL_PollEvent(&event) != 0) { @@ -92,20 +97,22 @@ main (int argc, controller_update(&ctrl, &event); } - if (controller_is_up_pressed(&ctrl)) rect.y -= 1; - if (controller_is_down_pressed(&ctrl)) rect.y += 1; - if (controller_is_left_pressed(&ctrl)) rect.x -= 1; - if (controller_is_right_pressed(&ctrl)) rect.x += 1; + if (controller_is_up_pressed(&ctrl)) rect.y -= 8; + if (controller_is_down_pressed(&ctrl)) rect.y += 8; + if (controller_is_left_pressed(&ctrl)) rect.x -= 8; + if (controller_is_right_pressed(&ctrl)) rect.x += 8; - SDL_FillRect( - surface, - &rect, - SDL_MapRGB(surface->format, 0xFF, 0x0, 0x0) - ); + SDL_SetRenderDrawColor(renderer, 0xFF, 0, 0, 1); + SDL_RenderFillRect(renderer, &rect); + SDL_RenderPresent(renderer); + + uint64_t end = SDL_GetPerformanceCounter(); - SDL_UpdateWindowSurface(window); + float elapsedMS = (end - start) / (float)SDL_GetPerformanceFrequency() * 1000.0f; + SDL_Delay(floor(16.666f - elapsedMS)); } + SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return EXIT_SUCCESS; |