PC Format (South-Africa) 2001 June/PCFJune.iso/Xenon/XenonSource.exe/demo5/asteroid.cpp

C/C++ Source or Header | 2000-09-12 | 5.6 KB | 228 lines

//-------------------------------------------------------------
//
// Class:    CAsteroid
//
// Author:    John M Phillips
//
// Started:    06/05/00
//
// Base:    CAlien
//
// Derived:    CSmallAsteroid
//            CMediumAsteroid
//            CBigAsteroid
//
//-------------------------------------------------------------

#include "demo5.h"

//-------------------------------------------------------------

CAsteroid::CAsteroid()
{
}

//-------------------------------------------------------------

CAsteroid::~CAsteroid()
{
}

//-------------------------------------------------------------

bool CAsteroid::activate()
{
    if (!isActive())
        m_timer.start();

    return CActor::activate();
}

//-------------------------------------------------------------

bool CAsteroid::update(Controls *controls)
{
    if (m_shield == 0) {
        fragment();
        return true;
        }

    m_position += m_velocity;

    animate(ANIMATE_LOOP);

    return true;
}

//-------------------------------------------------------------

void CSmallStandardAsteroid::fragment()
{
    explode();
    kill();
    CGameState::playSample(SAMPLE_ASTEROID_BREAKUP,getPosition().getX());
}

//-------------------------------------------------------------

void CSmallHighDensityAsteroid::fragment()
{
    explode();
    kill();
    CGameState::playSample(SAMPLE_ASTEROID_BREAKUP,getPosition().getX());
}

//-------------------------------------------------------------

void CSmallIndestructibleAsteroid::fragment()
{
}

//-------------------------------------------------------------

void CMediumStandardAsteroid::fragment()
{
    CAsteroid *child1 = new CSmallStandardAsteroid();
    m_scene->addActor(child1);
    child1->activate();
    child1->setPosition(getPosition());
    child1->setVelocity(gsCVector(-1.f,1.f));
    child1->increaseScoreMultiplier(0.5f);

    CAsteroid *child2 = new CSmallStandardAsteroid();
    m_scene->addActor(child2);
    child2->activate();
    child2->setPosition(getPosition());
    child2->setVelocity(gsCVector(1.f,1.f));
    child2->increaseScoreMultiplier(0.5f);

    CDustEffect *de = new CStandardDustEffect();
    m_scene->addActor(de);
    de->activate();
    de->setOwner(0);
    de->setPosition(getPosition());
    de->setVelocity(gsCVector(0.f,0.f));
    de->setLifetime(0.5f);

    kill();
    CGameState::playSample(SAMPLE_ASTEROID_BREAKUP,getPosition().getX());
}

//-------------------------------------------------------------

void CMediumHighDensityAsteroid::fragment()
{
    CAsteroid *child1 = new CSmallHighDensityAsteroid();
    m_scene->addActor(child1);
    child1->activate();
    child1->setPosition(getPosition());
    child1->setVelocity(gsCVector(-1.f,1.f));
    child1->increaseScoreMultiplier(0.5f);

    CAsteroid *child2 = new CSmallHighDensityAsteroid();
    m_scene->addActor(child2);
    child2->activate();
    child2->setPosition(getPosition());
    child2->setVelocity(gsCVector(1.f,1.f));
    child2->increaseScoreMultiplier(0.5f);

    CDustEffect *de = new CHighDensityDustEffect();
    m_scene->addActor(de);
    de->activate();
    de->setOwner(0);
    de->setPosition(getPosition());
    de->setVelocity(gsCVector(0.f,0.f));
    de->setLifetime(0.5f);

    kill();
    CGameState::playSample(SAMPLE_ASTEROID_BREAKUP,getPosition().getX());
}

//-------------------------------------------------------------

void CMediumIndestructibleAsteroid::fragment()
{
}

//-------------------------------------------------------------

void CBigStandardAsteroid::fragment()
{
    CAsteroid *child1 = new CMediumStandardAsteroid();
    m_scene->addActor(child1);
    child1->activate();
    child1->setPosition(getPosition());
    child1->setVelocity(gsCVector(-1.f,1.f));
    child1->increaseScoreMultiplier(0.5f);

    CAsteroid *child2 = new CMediumStandardAsteroid();
    m_scene->addActor(child2);
    child2->activate();
    child2->setPosition(getPosition());
    child2->setVelocity(gsCVector(0.f,1.3f));
    child2->increaseScoreMultiplier(0.5f);

    CAsteroid *child3 = new CMediumStandardAsteroid();
    m_scene->addActor(child3);
    child3->activate();
    child3->setPosition(getPosition());
    child3->setVelocity(gsCVector(1.f,1.f));
    child3->increaseScoreMultiplier(0.5f);

    CDustEffect *de = new CStandardDustEffect();
    m_scene->addActor(de);
    de->activate();
    de->setOwner(0);
    de->setPosition(getPosition());
    de->setVelocity(gsCVector(0.f,0.f));
    de->setLifetime(0.5f);

    kill();
    CGameState::playSample(SAMPLE_ASTEROID_BREAKUP,getPosition().getX());
}

//-------------------------------------------------------------

void CBigHighDensityAsteroid::fragment()
{
    CAsteroid *child1 = new CMediumHighDensityAsteroid();
    m_scene->addActor(child1);
    child1->activate();
    child1->setPosition(getPosition());
    child1->setVelocity(gsCVector(-1.f,1.f));
    child1->increaseScoreMultiplier(0.5f);

    CAsteroid *child2 = new CMediumHighDensityAsteroid();
    m_scene->addActor(child2);
    child2->activate();
    child2->setPosition(getPosition());
    child2->setVelocity(gsCVector(0.f,1.3f));
    child2->increaseScoreMultiplier(0.5f);

    CAsteroid *child3 = new CMediumHighDensityAsteroid();
    m_scene->addActor(child3);
    child3->activate();
    child3->setPosition(getPosition());
    child3->setVelocity(gsCVector(1.f,1.f));
    child3->increaseScoreMultiplier(0.5f);

    CDustEffect *de = new CHighDensityDustEffect();
    m_scene->addActor(de);
    de->activate();
    de->setOwner(0);
    de->setPosition(getPosition());
    de->setVelocity(gsCVector(0.f,0.f));
    de->setLifetime(0.5f);

    kill();
    CGameState::playSample(SAMPLE_ASTEROID_BREAKUP,getPosition().getX());
}

//-------------------------------------------------------------

void CBigIndestructibleAsteroid::fragment()
{
}

//-------------------------------------------------------------