dungeon-gunner/source/effects/Bullet.cpp

/*
 * Bullet.cpp
 *
 *  Created on: 12.08.2012
 *      Author: Felix
 */

#include "Bullet.h"

#include <Thor/Vectors.hpp>

#include "../abstract/Character.h"
#include "../util/Yaml.h"


/**
 * Places a bullet in the world.
 *
 * @param position World position of the bullet.
 * @param world Box2d world.
 * @param texture Texture to display for bullet.
 */
Bullet::Bullet(const Vector2f& position, Character& shooter,
	Vector2f direction, const Yaml& config, float speed,
	float damage, float maxRange) :
		Circle(position, CATEGORY_PARTICLE, ~CATEGORY_PARTICLE,
				config, thor::rotatedVector(direction, -90.0f)),
		mShooter(shooter),
		mDamage(damage),
		mSpeed(speed),
		mMaxRangeSquared((maxRange == 0) ? std::numeric_limits<float>::max() : maxRange * maxRange),
		mStartPoint(getPosition()) {
	setSpeed(thor::rotatedVector(direction, -90.0f), mSpeed);
}

/**
 * Deletes this and calls onDamage if other is a character. Does not
 * damage shooter.
 */
void
Bullet::onCollide(std::shared_ptr<Sprite> other) {
	if (thor::squaredLength(getPosition() - mStartPoint) >= mMaxRangeSquared) {
		setDelete(true);
		return;
	}

	// Make sure we do not damage twice.
	if (!getDelete() && (&*other != &mShooter)) {
		if (other->getCategory() == CATEGORY_ACTOR) {
			std::shared_ptr<Character> character = std::static_pointer_cast<Character>(other);
			character->onDamage(mDamage);
		}
		setDelete(true);
	}
}