Add inventory.

archive/scene/scenemanager.c

@@ -0,0 +1,119 @@
+/**
+ * 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"
+#include "display/framebuffer.h"
+#include "util/string.h"
+#include "asset/asset.h"
+#include "script/scriptmanager.h"
+
+scenemanager_t SCENE_MANAGER;
+
+errorret_t sceneManagerInit(void) {
+  memoryZero(&SCENE_MANAGER, sizeof(scenemanager_t));
+
+  sceneManagerRegisterScene(&SCENE_TEST);
+  sceneManagerRegisterScene(&SCENE_MAP);
+  
+  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;
+}
+
+errorret_t sceneManagerSetScene(scene_t *scene) {
+  if(
+    SCENE_MANAGER.current &&
+    (SCENE_MANAGER.current->flags & SCENE_FLAG_INITIALIZED) != 0
+  ) {
+    SCENE_MANAGER.current->flags &= ~SCENE_FLAG_INITIALIZED;
+    if(SCENE_MANAGER.current->dispose) {
+      SCENE_MANAGER.current->dispose(&SCENE_MANAGER.sceneData);
+    }
+  }
+  
+  SCENE_MANAGER.current = scene;
+
+  if(scene && (scene->flags & SCENE_FLAG_INITIALIZED) == 0) {
+    scene->flags |= SCENE_FLAG_INITIALIZED;
+
+    if(scene->init) errorChain(scene->init(&SCENE_MANAGER.sceneData));
+
+    // Execute scene script if it exists
+    char_t buffer[256];
+    snprintf(buffer, sizeof(buffer), "scene/%s.dsf", scene->name);
+    if(assetFileExists(buffer)) {
+      scriptcontext_t ctx;
+      scriptContextInit(&ctx);
+      errorChain(scriptContextExecFile(&ctx, buffer));
+      scriptContextDispose(&ctx);
+    }
+  }
+
+  errorOk();
+}
+
+void sceneManagerUpdate(void) {
+  if(!SCENE_MANAGER.current) return;
+
+  assertTrue(
+    SCENE_MANAGER.current->flags & SCENE_FLAG_INITIALIZED,
+    "Current scene not initialized"
+  );
+
+  if(SCENE_MANAGER.current->update) {
+    SCENE_MANAGER.current->update(&SCENE_MANAGER.sceneData);
+  }
+}
+
+void sceneManagerRender(void) {
+  if(!SCENE_MANAGER.current) return;
+
+  assertTrue(
+    SCENE_MANAGER.current->flags & SCENE_FLAG_INITIALIZED,
+    "Current scene not initialized"
+  );
+
+  if(SCENE_MANAGER.current->render) {
+    SCENE_MANAGER.current->render(&SCENE_MANAGER.sceneData);
+  }
+}
+
+void sceneManagerDispose(void) {
+  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.sceneData);
+    }
+  }
+
+  SCENE_MANAGER.sceneCount = 0;
+}