scerne stuff

src/scene/scenemanager.c

@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "scenemanager.h"
+#include "util/memory.h"
+#include "assert/assert.h"
+
+scenemanager_t SCENE_MANAGER;
+
+errorret_t sceneManagerInit(void) {
+  memoryZero(&SCENE_MANAGER, sizeof(scenemanager_t));
+
+  errorOk();
+}
+
+void sceneManagerSetScene(scene_t *scene) {
+  if(SCENE_MANAGER.current) {
+    SCENE_MANAGER.current->sleep();
+    SCENE_MANAGER.current->flags &= ~SCENE_FLAG_ACTIVE;
+  }
+  
+  SCENE_MANAGER.current = scene;
+
+  if(SCENE_MANAGER.current) {
+    SCENE_MANAGER.current->active();
+    SCENE_MANAGER.current->flags |= SCENE_FLAG_ACTIVE;
+  }
+}
+
+void sceneManagerUpdate(void) {
+  if(!SCENE_MANAGER.current) return;
+  assertTrue(
+    SCENE_MANAGER.current->flags & SCENE_FLAG_ACTIVE,
+    "Current scene not active"
+  );
+  SCENE_MANAGER.current->update();
+}
+
+void sceneManagerRender(void) {
+  if(!SCENE_MANAGER.current) return;
+  assertTrue(
+    SCENE_MANAGER.current->flags & SCENE_FLAG_ACTIVE,
+    "Current scene not active"
+  );
+  SCENE_MANAGER.current->render();
+}
+
+void sceneManagerDispose(void) {
+  assertNull(SCENE_MANAGER.current, "Current scene not null");
+}