void Rasterizer::rasterizeLine(QPoint begin, QPoint end, QVector<QPoint> * pixels) const {
Q_ASSERT(pixels);
if (clearDestination()) {
pixels->clear();
}
if (begin.x() == end.x()) {
rasterizeVerticalLine(begin, end, pixels);
return;
}
if (begin.x() > end.x()) {
qSwap(begin, end);
}
qreal k = (end.y() - begin.y()) / (qreal)(end.x() - begin.x());
qreal b = begin.y() - begin.x() * k;
if (begin.x() < 0) {
begin.setX(0);
begin.setY(b);
}
if (end.x() >= (qint32)canvas_->width()) {
end.setX(canvas_->width() - 1);
end.setY(k * end.x() + b);
}
qint32 x = begin.x();
qint32 y = begin.y();
qint32 delta = k < 0 ? -1 : 1;
qreal err = 0;
while (x <= end.x()) {
if (err >= 0.5) {
y += delta;
err -= 1;
}
if (0 <= y && y < qint32(canvas_->height())) {
pixels->push_back(QPoint(x, y));
}
if (err < 0.5) {
x++;
err += qAbs(k);
}
}
}
bool VehicleInstance::handleDamage(ShootableMapObject::DamageInflictType *d) {
if (health_ < 0 || d->dtype == MapObject::dmg_Mental)
return false;
health_ -= d->dvalue;
if (health_ <= 0){
speed_ = 0;
clearDestination();
switch ((unsigned int)d->dtype) {
case MapObject::dmg_Bullet:
case MapObject::dmg_Laser:
case MapObject::dmg_Burn:
case MapObject::dmg_Explosion:
vehicle_->setVehicleAnim(Vehicle::OnFireAnim);
setTimeShowAnim(10000);
break;
}
} // NOTE: maybe reduce speed on hit?
return true;
}
