/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   monster.c                                          :+:    :+:            */
/*                                                     +:+                    */
/*   By: qmennen <qmennen@student.codam.nl>           +#+                     */
/*                                                   +#+                      */
/*   Created: 2025/05/28 17:15:52 by qmennen       #+#    #+#                 */
/*   Updated: 2025/06/03 14:51:23 by whaffman      ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "cub3d.h"

void	update_monsters(t_game *game)
{
	int			i;
	t_vec2		d;
	t_sprite	*sprite;
	double		dist_squared;
	double		inv_dist;

	i = -1;
	while (++i < game->map->n_sprites)
	{
		sprite = &game->map->sprites[i];
		if (sprite->type != SPRITE_TYPE_ENEMY)
			continue ;
		d = sub(game->player->pos, sprite->pos);
		dist_squared = d.x * d.x + d.y * d.y;
		if (dist_squared >= 0.02)
		{
			inv_dist = 1.0 / sqrt(dist_squared);
			sprite->pos.x += d.x * inv_dist * .05f;
			sprite->pos.y += d.y * inv_dist * .05f;
		}
	}
}