GeometryWars/Bullet.cpp at master · rroa/GeometryWars · GitHub

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#include "Utility/package.hpp"

#include "package.h"

//---------------------------------------------------------------------------------
// Written by Terence J. Grant - tjgrant [at] tatewake [dot] com
// Find the full tutorial at: http://gamedev.tutsplus.com/series/
//----------------------------------------------------------------------------------

Bullet::Bullet(const tPoint2f& position, const tVector2f& velocity)
{
    mImage = Art::getInstance()->getBullet();
    mPosition = position;
    mVelocity = velocity;
    mOrientation = atan2f(mVelocity.y, mVelocity.x);
    mRadius = 8;
    mKind = kBullet;
}

void Bullet::update()
{
    if (mVelocity.lengthSquared() > 0)
    {
        mOrientation = atan2f(mVelocity.y, mVelocity.x);
    }

    mPosition += mVelocity;

    GameRoot::getInstance()->getGrid()->applyExplosiveForce(0.5f * mVelocity.length(), mPosition, 80);

    if (!tRectf(0, 0, GameRoot::getInstance()->getViewportSize()).contains(tPoint2f((int32_t)mPosition.x, (int32_t)mPosition.y)))
    {
        mIsExpired = true;


        for (int i = 0; i < 30; i++)
        {
            GameRoot::getInstance()->getParticleManager()->createParticle(
                                                                         Art::getInstance()->getLineParticle(),
                                                                         mPosition,
                                                                         tColor4f(0.67f, 0.85f, 0.90f, 1), 50, 1,
                                                                         ParticleState(Extensions::nextVector2(0, 9), ParticleState::kBullet, 1));
        }
    }
}