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#include <stdint.h>
#include <stdlib.h>
#include "vga.h"
#include "map.h"
#include "entities.h"
#include "game.h"
#include "player.h"
#include "tmonster.h"
#define WAIT 120
#define MOVE_TIME 90
static const Rect frames[2 * 4] =
{
/* right */
{ 96, 16, 144, 144 },
{ 80, 48, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
/* left */
{ 96, 16, 144, 144 },
{ 96, 48, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 }
};
void tmonster_init(Entity *e)
{
e->ox = e->y = 16;
e->oy = e->x = 32 + (rand() % 256);
e->dir = e->x > 160 ? DIR_LEFT : DIR_RIGHT;
e->frames = (const Rect *)frames;
e->update = tmonster_wait_update;
}
void tmonster_wait_update(Entity *e)
{
e->delay++;
e->frame = (e->delay & 2) ? 1 : 0;
if (e->delay == WAIT)
{
e->delay = 0;
e->frame = 1;
e->update = tmonster_update;
}
}
void tmonster_update(Entity *e)
{
e->delay++;
if (e->delay == WAIT * 2)
e->delay = 0;
if (e->delay < MOVE_TIME)
{
if (e->x > player_x() && e->x > 0)
{
e->dir = DIR_LEFT;
e->x--;
}
if (e->x < player_x() && e->x < (MAP_W * MAP_TILE_W) - 16)
{
e->dir = DIR_RIGHT;
e->x++;
}
if (e->y > player_y() && e->y > 0)
e->y--;
if (e->y < player_y() && e->y < (MAP_H * MAP_TILE_H) - 16)
e->y++;
}
if (player_collision(e))
{
player_hit();
reset_time();
}
}
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