source/logic/PlayerCar.cpp


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#include "PlayerCar.h"

PlayerCar::PlayerCar(double x, double y, Maze::Direction facing)
    :Car(x,y,BitmapStore::PLAYER, facing),
    _input(_facing),
    _petrol(1)
{
}

void PlayerCar::update(const Maze& maze, list<Smokescreen>& currentSmoke)
{
    _petrol -= PETROL_USE_RATE;
    if (_petrol<0)
    {
        _speed = _baseSpeed/2;
        _petrol = 0;
    }

    _facing = _input.getFacing();
    move(maze);

    if (_input.getSmokescreen())
    {
        makeSmoke(currentSmoke);
    }
}

void PlayerCar::makeSmoke(list<Smokescreen>& currentSmoke)
{
    if (_petrol < PETROL_USE_SMOKESCREEN) return;

    double targetX = 0;
    double targetY = 0;

    switch(_facing)
    {
        case Maze::UP:
            targetX = round(_x);
            targetY = round(_y+1);
            break;
        case Maze::DOWN:
            targetX = round(_x);
            targetY = round(_y-1);
            break;
        case Maze::LEFT:
            targetX = round(_x+1);
            targetY = round(_y);
            break;
        case Maze::RIGHT:
            targetX = round(_x-1);
            targetY = round(_y);
            break;
    }

    bool overlap = false;

    for (list<Smokescreen>::const_iterator iter = currentSmoke.begin(); iter!=currentSmoke.end(); ++iter)
    {
        if ((abs(iter->x() - targetX)<1)&&(abs(iter->y() - targetY)<1))
        {
            overlap = true;
            break;
        }
    }

    if (!overlap)
    {
        currentSmoke.push_back(Smokescreen(targetX, targetY));
        _petrol -= PETROL_USE_SMOKESCREEN;
    }
}

void PlayerCar::crash()
{
    _destroyed = true;
}

void PlayerCar::gotCheckpoint()
{
    _petrol+=PETROL_FROM_CHECKPOINT;
    _speed = _baseSpeed;
}

double PlayerCar::petrol() const
{
    return _petrol;
}