#ifndef NPC_H
#define NPC_H

#include <stdbool.h>
#include <stdint.h>

#include "game.h"
#include "memory.h"

enum {

    NPC_NONE = 0,
    NPC_FRIENDLY = 1, // The player's team
    NPC_HOSTILE = 2,  // to the player
    NPC_ALL = 3

};

typedef struct {
    /* current coordinates of the NPC */
    float curx, cury;

    /* initial coordinates of the NPC (needed to get absolute coordinates of
     * path) */
    uint32_t x;
    uint32_t y;
    /* the ID of the first element of the dialog */
    /* (to be aligned with "dialogs.json" IDs)*/
    uint32_t dialogID;
    /* the number of the target point of the path */
    /* Note: it must keep the value 0 if NPC has no path assigned */
    uint32_t currentPoint;
    /* data of the path */
    uint32_t hasPath;
    uint32_t path_length;
    int16_t *xpath;
    int16_t *ypath;

    int type;

    int8_t current_group;
    int8_t hostile_to_group;

    /* is the current NPC in pause (during dialog) */
    bool paused;

    char *face;
} NPC;

// Frees then malloc()s a new path to npc
// Useful if you want to safely edit a path
int npc_clear_path(NPC *npc);

// Adds point x,y to the path of npc
// Won't work on static NPCs, use npc_clear_path before or make them on the heap
int npc_append_path(uint16_t x, uint16_t y, NPC *npc);

// Clears the NPCs path and creates a new one going to dest,
// avoiding non-walkable tiles
// Returns non-zero on failure
int npc_pathfind(int32_t dest_x, int32_t dest_y, Map *full_map, NPC *npc);

// realloc()s npcRPG to adequate size and returns a pointer to the new element
// Returns NULL on failure
NPC *npc_create();

// Pops the NPC from npcRPG
void npc_remove(NPC *npc);

/* Draws the player player. This function should be called after drawing the
 * map! */
void npc_draw(Game *game);

void update_npcs(Game *game);

void update_npc(NPC *npc);

void reload_npc(Game *game);

#endif