#include "Engine.hh"
#include "Player.hh" 

Player::Player(GameState &state, Vector position, bool visible) : 
    PhysicsObject(state.world, PLAYER_MASS, position, Vector(0, 0)), state(state), visible(visible) {

    std::vector<Vector> shape(4);
    shape[0] = Vector(0,-9);
    shape[1] = Vector(6,0);
    shape[2] = Vector(0,9); 
    shape[3] = Vector(-6,0);
    // Initialize the shape of the player (salmiakki shape)
    setShape(shape);
    collision_elasticity = PLAYER_COLLISION_ELASTICITY;
    world.addPlayerObject(this);
}
 
/**
 * shoots the selected weapon.
 * TODO: selection and weapon information
 */
void Player::shoot (void) {
    // here should be somehow considered which projectile it is
    if(!canShoot())
        return;
    reloadTimer += 0;
    Vector unitVectorAim = facingRight ? Vector(std::cos(aim), -std::sin(aim)) : 
            Vector(-std::cos(aim), -std::sin(aim));
    float shotspeed = 100*PHYSICS_TICK_MS;
    Vector shotRelativeVelocity = unitVectorAim * shotspeed;
    Vector shotVelocity = this->velocity + shotRelativeVelocity;
    new Projectile(this->state, this->position, shotVelocity, true);
}

void Player::handleMove (PlayerInput_Move input) {
    float fx = 0; // Force in x-direction
    float da = 0; // Crosshair angle

    // handle left/right
    if ((input & INPUT_MOVE_LEFT) && (velocity.x > -PLAYER_MAX_SPEED))
        fx -= PLAYER_MOVE_FORCE;

    if ((input & INPUT_MOVE_RIGHT) && (velocity.x < PLAYER_MAX_SPEED))
        fx += PLAYER_MOVE_FORCE;

    if (input & INPUT_MOVE_UP)
        da += CROSSHAIR_ANGLE_SPEED;

    if (input & INPUT_MOVE_DOWN)
        da -= CROSSHAIR_ANGLE_SPEED;

    if (input & INPUT_MOVE_JUMP) {
        if ((input & INPUT_MOVE_LEFT))
            jump(-1);
        else if ((input & INPUT_MOVE_RIGHT))
            jump(1);
        else
            jump(0);
    }

    if (input & INPUT_MOVE_DIG) {
        // Should create Projectile which destroys ground, but also should be destroyed then,
        // but it doesn't.
        // But this now just segfaults
//        world.addObject(new Projectile(state, position, true));

        handleDig(position, 15);
    }

    if (input & INPUT_SHOOT) {
        this->shoot();
    }



    // Player facing
    if (fx < 0) setFacing(false);
    else if (fx > 0) setFacing(true);


    this->changeAim(da); // Move crosshair

    // Apply force
    applyForce(Vector(fx, 0));

}

void Player::handleDig (Vector position, float radius) {
    world.removeGround(position, radius);
}

void Player::debugInfo (void) {
    Engine::log(DEBUG, "Player.debugInfo") << "In air: " << this->inAir;
}