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src/scene/scenemanager.c

@@ -8,47 +8,103 @@
 #include "scenemanager.h"
 #include "util/memory.h"
 #include "assert/assert.h"
+#include "console/console.h"
+#include "util/string.h"
 
 scenemanager_t SCENE_MANAGER;
 
 errorret_t sceneManagerInit(void) {
   memoryZero(&SCENE_MANAGER, sizeof(scenemanager_t));
-
+  
   errorOk();
 }
 
+scene_t * sceneManagerGetSceneByName(const char_t *name) {
+  assertNotNull(name, "Name is null");
+
+  for(uint8_t i = 0; i < SCENE_MANAGER.sceneCount; i++) {
+    if(strcmp(SCENE_MANAGER.scenes[i]->name, name) != 0) continue;
+    return SCENE_MANAGER.scenes[i];
+  }
+
+  return NULL;
+}
+
+void sceneManagerRegisterScene(scene_t *scene) {
+  assertNotNull(scene, "Scene is null");
+  assertTrue(
+    SCENE_MANAGER.sceneCount < SCENE_MANAGER_SCENE_COUNT_MAX,
+    "Scene count exceeded max"
+  );
+  assertNotNull(scene->name, "Scene name is null");
+  assertNull(
+    sceneManagerGetSceneByName(scene->name), "Scene name already registered"
+  );
+
+  SCENE_MANAGER.scenes[SCENE_MANAGER.sceneCount++] = scene;
+}
+
 void sceneManagerSetScene(scene_t *scene) {
   if(SCENE_MANAGER.current) {
-    SCENE_MANAGER.current->sleep();
-    SCENE_MANAGER.current->flags &= ~SCENE_FLAG_ACTIVE;
+    if(SCENE_MANAGER.current->sleep) SCENE_MANAGER.current->sleep();
+    
+    // TODO: Should dispose?
+    SCENE_MANAGER.current->flags &= ~(
+      SCENE_FLAG_INITIALIZED | SCENE_FLAG_ACTIVE
+    );
+    if(SCENE_MANAGER.current->dispose) SCENE_MANAGER.current->dispose();
   }
   
   SCENE_MANAGER.current = scene;
 
-  if(SCENE_MANAGER.current) {
-    SCENE_MANAGER.current->active();
-    SCENE_MANAGER.current->flags |= SCENE_FLAG_ACTIVE;
+  if(scene) {
+    assertTrue(
+      scene->flags & SCENE_FLAG_INITIALIZED,
+      "Scene not initialized"
+    );
+
+    if(scene->active) scene->active();
+    scene->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();
+  assertTrue(
+    SCENE_MANAGER.current->flags & SCENE_FLAG_INITIALIZED,
+    "Current scene not initialized"
+  );
+
+  if(SCENE_MANAGER.current->update) 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();
+  assertTrue(
+    SCENE_MANAGER.current->flags & SCENE_FLAG_INITIALIZED,
+    "Current scene not initialized"
+  );
+
+  if(SCENE_MANAGER.current->render) SCENE_MANAGER.current->render();
 }
 
 void sceneManagerDispose(void) {
-  assertNull(SCENE_MANAGER.current, "Current scene not null");
+  for(uint8_t i = 0; i < SCENE_MANAGER.sceneCount; i++) {
+    scene_t *scene = SCENE_MANAGER.scenes[i];
+    if(scene->flags & SCENE_FLAG_INITIALIZED) {
+      scene->dispose();
+    }
+  }
+
+  SCENE_MANAGER.sceneCount = 0;
 }