#include "player.h"
#include "layers.h"
#include "ui.h"
#include "world.h"
#include "input.h"
#include "engine.h"
#include <SDL2/SDL_scancode.h>

float player_move_x = 0;
float player_move_y = 0;
float player_xv = 0;
float player_yv = 0;
object_t* player_instance = NULL;

void player_update(object_t *object) {
	float m = sqrtf(player_move_x*player_move_x + player_move_y*player_move_y);
	if(m == FP_NAN) m = 1;
	m = 1.f/m;
	player_xv = player_move_x * 3.f * m,
	player_yv = player_move_y * 3.f * m;
	object->sprite.x += player_xv * delta_time();
	object->sprite.y += player_yv * delta_time();
}

object_t* create_player() {
	player_instance = make_object();
	player_instance->evt_update = &player_update;
	player_instance->sprite = make_sprite("player.png", 0, 0);

	add_key_listener(SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT, &player_axis_horizontal);
	add_key_listener(SDL_SCANCODE_DOWN, SDL_SCANCODE_UP, &player_axis_vertical);

	return player_instance;
}

void player_axis_horizontal(int axis) {
	player_move_x = axis;
}

void player_axis_vertical(int axis) {
	player_move_y = -axis;
}