53 lines
1.3 KiB
C++
Executable File
53 lines
1.3 KiB
C++
Executable File
/*
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* Weapon.cpp
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*
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* Created on: 12.08.2012
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* Author: Felix
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*/
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#include "Weapon.h"
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#include <algorithm>
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#include <thor/Vectors.hpp>
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#include "../util/Collection.h"
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#include "../effects/Bullet.h"
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const String Weapon::KEY_BULLET = "bullet";
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const String Weapon::KEY_INTERVAL = "interval";
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Weapon::Weapon(const Instances& instances, Body& holder, const Yaml& config) :
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Emitter(instances.collection),
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mHolder(holder),
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mWorld(instances.world),
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mBullet(config.get<String>(KEY_BULLET)),
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mTimer(sf::milliseconds(config.get<int>(KEY_INTERVAL))) {
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Yaml bullet(mBullet);
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Vector2i bulletSize = bullet.get<Vector2i>(Body::KEY_SIZE);
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mOffset = Vector2f(0, std::max(mHolder.getSize().x, mHolder.getSize().y) / 2 +
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b2_linearSlop +
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std::max(bulletSize.x, bulletSize.y) / 2);
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}
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/**
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* Pull the trigger.
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*/
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void
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Weapon::fire() {
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// Only call if has ammo, consider firing rate etc.
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if (mTimer.isExpired()) {
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emit();
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mTimer.start();
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}
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}
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std::shared_ptr<Particle>
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Weapon::createParticle() {
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// Minus to account for positive y-axis going downwards in SFML.
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Vector2f offset(- mOffset);
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thor::rotate(offset, mHolder.getAngle());
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return std::shared_ptr<Particle>(new Bullet(mHolder.getPosition() + offset, mWorld,
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mHolder, mHolder.getAngle(), Yaml(mBullet)));
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}
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