//
// Created by trotfunky on 27/05/19.
//

#include "Player.h"


Player::Player(float x, float y, float alpha) : x(x), y(y), orientation(alpha)
{}

void Player::move(float dx, float dy)
{
    x += dx;
    y += dy;
}

void Player::rotate(float alpha)
{
    orientation += fmodf(alpha, 360);
    if(orientation > 360)
    {
        orientation -= 360;
    }
    else if(orientation < 0)
    {
        orientation += 360;
    }

	/*
	 * Rotate the movement vector along the new angle, assumes that the only
	 * speed influencing the player is its own movement.
	 */
	float prevSpeedX = currentMoveSpeedX;
	float prevSpeedY = currentMoveSpeedY;
	currentMoveSpeedX = cosf(-alpha * deg_to_rad) * prevSpeedX
					    - sinf(-alpha * deg_to_rad) * prevSpeedY;
	currentMoveSpeedY = sinf(-alpha * deg_to_rad) * prevSpeedX
					    + cosf(-alpha * deg_to_rad) * prevSpeedY;
}

void Player::updateSpeed(float localX, float localY) {
	// TODO: Support strafing.
	currentMoveSpeedX = localX * sinf(orientation*deg_to_rad)*moveSpeed;
	currentMoveSpeedY = localX * cosf(orientation*deg_to_rad)*moveSpeed;
}