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BGameEngine.cpp

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#include "BGameEngine.h"

#include "Display/Display.h"

#include "Controls.h"

BGameEngine::BGameEngine(BViewPort *aViewPort) {

mWorldXX = mWorldYY = 0;

mPlayfield = ENull;

mPauseFlag = EFalse;

mEnabled = ETrue;

mFrameCounter = 0;

mDisplay = &gDisplay;

mViewPort = aViewPort;

}

BGameEngine::~BGameEngine() {

// assure processes and sprites get freed

Reset();

if (mPlayfield) {

delete mPlayfield;

mPlayfield = ENull;

}

}

// you can set viewport here for game area

void BGameEngine::PreRender() {

}

// and use score/status viewport here

// typically games will use this to draw the score/status area, too

void BGameEngine::PostRender() {

}

/**

* Resets the engine

*

*

*/

void BGameEngine::Reset() {

mProcessList.Genocide();

mSpriteList.Reset();

}

void BGameEngine::AddProcess(BProcess *aProcess) {

mProcessList.AddProcess(aProcess);

}

void BGameEngine::RunProcessesBefore() {

mProcessList.RunBefore();

}

void BGameEngine::RunProcessesAfter() {

mProcessList.RunAfter();

}

void BGameEngine::GameLoop() {

if (!mPauseFlag) {

gControls.Poll();

}

mFrameCounter++;

PreRender();

if (mEnabled) {

if (mPlayfield) {

// animate the playfield

mPlayfield->Animate();

}

if (!mPauseFlag) {

mSpriteList.Move();

mSpriteList.Animate();

mProcessList.RunBefore();

}

// allow inheritor to set mWorldXX,mWorldYY as desired

PositionCamera();

if (mPlayfield != ENull) {

mPlayfield->Render();

}

mSpriteList.Render(mViewPort);

if (!mPauseFlag) {

mProcessList.RunAfter();

}

}

PostRender();

}