#include "cop_bot.h"
#include "break_utopia/macros.h"
#include "break_utopia/player_body.h"
#include "core/config/engine.h"

void CopBot::_bind_methods() {
	BIND_PROPERTY(Variant::FLOAT, speed);
}

void CopBot::ready() {
}

void CopBot::process() {
	Vector3 player_position{ PlayerBody::get_singleton()->get_global_position() };
	Vector3 current_position{ get_global_position() };
	Vector3 difference{ player_position - current_position };
	Vector3 velocity{ 0, 0, 0 };
	constexpr float detection_distance{ 7. * 7. };
	if (difference.length_squared() > detection_distance) {
		this->aware_of_player = true;
	}
	if (this->aware_of_player) {
		velocity = difference;
	}
	set_velocity(difference.normalized() * this->speed);
	Vector3 look_at_position{ (current_position - player_position) + current_position };
	look_at({ look_at_position.x, current_position.y, look_at_position.z });
}

void CopBot::physics_process() {
	Vector3 velocity{ get_velocity() };
	if (!is_on_floor()) {
		velocity += get_gravity() * get_physics_process_delta_time();
	} else {
		velocity.y = 0;
	}
	move_and_slide();
}

void CopBot::_notification(int what) {
	if (Engine::get_singleton()->is_editor_hint()) {
		return;
	}
	switch (what) {
		default:
			return;
		case NOTIFICATION_READY:
			set_process(true);
			set_physics_process(true);
			ready();
			return;
		case NOTIFICATION_PROCESS:
			process();
			return;
		case NOTIFICATION_PHYSICS_PROCESS:
			physics_process();
			return;
	}
}