Initial commit

src/window/renderer.c

@@ -0,0 +1,44 @@
+// initializes the window and renderer
+#include "renderer.h"
+
+#include <SDL2/SDL.h>
+#include <stdio.h>
+
+#include "../errors.h"
+#include "../main.h"
+
+
+int renderer_init(SDL_Window** window, SDL_Renderer** renderer) {
+    // create a new window
+    *window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 100, 100, SDL_WINDOW_SHOWN);
+    if (*window == NULL) {
+        error(ERROR_SDL_RENDERER_INIT, "Window failed to be created! SDL Error: %s", SDL_GetError());
+        return -1;
+    }
+
+    // create a renderer
+    *renderer = SDL_CreateRenderer(*window, -1, SDL_RENDERER_PRESENTVSYNC);
+    if (*renderer == NULL) {
+        error(ERROR_SDL_RENDERER_INIT, "Renderer failed to be created! SDL Error: %s", SDL_GetError());
+        return -1;
+    }
+
+    return 0;
+}
+
+void renderer_update(const RenderData* render_data) {
+    SDL_Renderer* renderer = render_data->renderer;
+
+    int success = 0; // if an error occurs, this value is <0
+
+    // clear render
+    success |= SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0x50);
+    success |= SDL_RenderClear(renderer);
+
+    if (success < 0) {
+        warn("\033[93mW\033[0m: something went wrong whilst renderering! SDL Error: %s\n", SDL_GetError());
+        return;
+    }
+
+    SDL_RenderPresent(renderer);
+}