Add inventory.

archive/rpg/rpgcamera.h

@@ -0,0 +1,40 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "rpg/overworld/worldpos.h"
+#include "error/error.h"
+
+typedef enum {
+  RPG_CAMERA_MODE_FREE,
+  RPG_CAMERA_MODE_FOLLOW_ENTITY,
+} rpgcameramode_t;
+
+typedef struct {
+  rpgcameramode_t mode;
+
+  union {
+    worldpos_t free;
+    struct {
+      uint8_t followEntityId;
+    } followEntity;
+  };
+} rpgcamera_t;
+
+extern rpgcamera_t RPG_CAMERA;
+
+/**
+ * Initializes the RPG camera.
+ */
+void rpgCameraInit(void);
+
+/**
+ * Updates the RPG camera.
+ * 
+ * @return An error code.
+ */
+errorret_t rpgCameraUpdate(void);