rotating cube

1 files changed, 62 insertions, 0 deletions

diff --git a/src/engine.c b/src/engine.c
new file mode 100644
index 0000000..9e007ca
--- /dev/null
+++ b/src/engine.c
@@ -0,0 +1,62 @@
+#include "engine.h"
+#include "block.h"
+#include "window.h"
+#include <junk/vector.h>
+
+int engine_init(struct engine *engine) {
+    // Setup the Window
+    struct window* window = malloc(sizeof(struct window));
+    memset(window, 0, sizeof(struct window));
+    if (window_init(window) != 0) {
+        free(window);
+        return -1;
+    }
+    engine->window = window;
+
+    // Setup Shader pipeline
+    struct shader* shader = malloc(sizeof(struct shader));
+    memset(shader, 0, sizeof(struct shader));
+    if (shader_init(shader)) {
+        free(window);
+        free(shader);
+        return -1;
+    };
+    engine->shader = shader;
+
+    // Setup Objects to draw
+    struct block* blk = malloc(sizeof(struct block));
+    memset(blk, 0, sizeof(struct block));
+    vec3 pos = { 0, 0, 0 };
+    if (block_init(pos, blk) != 0) {
+        free(window);
+        free(shader);
+        free(blk);
+        return -1;
+    }
+    vector_init(&engine->objects);
+    VECTOR_INSERT(engine->objects, (void*)blk);
+
+    engine->game_loop = 1;
+    return 0;
+}
+
+void engine_draw(struct engine* engine) {
+    while (engine->game_loop) {
+        SDL_Event event;
+        while (SDL_PollEvent(&event)) {
+            // Quit game
+            if (event.type == SDL_QUIT) {
+                engine->game_loop = 0;
+            }
+        }
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        glEnable(GL_DEPTH_TEST);
+        //glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
+        glUseProgram(engine->shader->program);
+        for (int i = 0; i < engine->objects->len; i++) {
+            struct block* block = vector_get(engine->objects, i);
+            block_draw(block, engine->shader);
+        }
+        SDL_RenderPresent(engine->window->renderer);
+    }
+}