Prog

src/rpg/entity/entity.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "player.h"
+
+typedef enum {
+  ENTITY_DIR_UP = 0,
+  ENTITY_DIR_DOWN = 1,
+  ENTITY_DIR_LEFT = 2,
+  ENTITY_DIR_RIGHT = 3,
+
+  ENTITY_DIR_NORTH = ENTITY_DIR_UP,
+  ENTITY_DIR_SOUTH = ENTITY_DIR_DOWN,
+  ENTITY_DIR_WEST = ENTITY_DIR_LEFT,
+  ENTITY_DIR_EAST = ENTITY_DIR_RIGHT
+} entitydir_t;
+
+typedef enum {
+  ENTITY_TYPE_NULL = 0,
+  ENTITY_TYPE_PLAYER = 1,
+} entitytype_t;
+#define ENTITY_TYPE_COUNT (ENTITY_TYPE_PLAYER + 1)
+
+typedef struct _entity_t {
+  entitytype_t type;
+  uint8_t x, y;
+  entitydir_t dir;
+
+  // Per type data
+  union {
+    player_t player;
+  };
+} entity_t;
+
+#define ENTITY_COUNT 16
+extern entity_t ENTITIES[ENTITY_COUNT];
+
+typedef struct {
+  void (*init)(entity_t *entity);
+} entitycallbacks_t;
+extern entitycallbacks_t ENTITY_CALLBACKS[ENTITY_TYPE_COUNT];
+
+/**
+ * Initializes an entity with the given type.
+ * 
+ * @param entity Pointer to the entity to initialize.
+ * @param type The type of the entity to initialize.
+ */
+void entityInit(entity_t *entity, const entitytype_t type);