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dungeon-gunner/source/items/Weapon.cpp
2012-10-12 19:22:53 +02:00

45 lines
1.1 KiB
C++
Executable file

/*
* Weapon.cpp
*
* Created on: 12.08.2012
* Author: Felix
*/
#include "Weapon.h"
#include <algorithm>
#include <thor/Vectors.hpp>
#include "../util/Collection.h"
#include "../effects/Bullet.h"
const String Weapon::KEY_BULLET = "bullet";
Weapon::Weapon(const Instances& instances, Physical& holder, const Yaml& config) :
Emitter(instances.collection),
mHolder(holder),
mWorld(instances.world),
mOffset(0, std::max(mHolder.getSize().x, mHolder.getSize().y) / 2 +
b2_linearSlop +
std::max(Bullet::SIZE.x, Bullet::SIZE.y) / 2),
mBullet(config.get<String>(KEY_BULLET)) {
}
/**
* Pull the trigger.
*/
void
Weapon::fire() {
// Only call if has ammo, consider firing rate etc.
emit();
}
std::shared_ptr<Particle>
Weapon::createParticle() {
// Minus to account for positive y-axis going downwards in SFML.
Vector2f offset(- mOffset);
thor::rotate(offset, mHolder.getAngle());
return std::shared_ptr<Particle>(new Bullet(mHolder.getPosition() + offset, mWorld,
mHolder, mHolder.getAngle(), Yaml(mBullet)));
}