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scummvm-cursorfix/engines/hpl1/engine/graphics/ParticleEmitter.cpp
2026-02-02 04:50:13 +01:00

161 lines
4.8 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*
* Copyright (C) 2006-2010 - Frictional Games
*
* This file is part of HPL1 Engine.
*/
#include "hpl1/engine/graphics/ParticleEmitter.h"
#include "hpl1/engine/graphics/Graphics.h"
#include "hpl1/engine/graphics/MaterialHandler.h"
#include "hpl1/engine/resources/ImageManager.h"
#include "hpl1/engine/resources/MaterialManager.h"
#include "hpl1/engine/resources/Resources.h"
#include "hpl1/engine/system/low_level_system.h"
namespace hpl {
//////////////////////////////////////////////////////////////////////////
// DATA LOADER
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
iParticleEmitterData::iParticleEmitterData(const tString &asName, cResources *apResources,
cGraphics *apGraphics) {
msName = asName;
mpResources = apResources;
mpGraphics = apGraphics;
mfWarmUpTime = 0;
mfWarmUpStepsPerSec = 20;
}
//-----------------------------------------------------------------------
iParticleEmitterData::~iParticleEmitterData() {
for (int i = 0; i < (int)mvMaterials.size(); i++) {
if (mvMaterials[i])
mpResources->GetMaterialManager()->Destroy(mvMaterials[i]);
}
}
//-----------------------------------------------------------------------
void iParticleEmitterData::AddMaterial(iMaterial *apMaterial) {
mvMaterials.push_back(apMaterial);
}
//-----------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
// CONSTRUCTORS
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
iParticleEmitter::iParticleEmitter(tMaterialVec *avMaterials,
unsigned int alMaxParticles, cVector3f avSize,
cGraphics *apGraphics, cResources *apResources) {
mpGraphics = apGraphics;
mpResources = apResources;
mvParticles.resize(alMaxParticles);
for (int i = 0; i < (int)alMaxParticles; i++) {
mvParticles[i] = hplNew(cParticle, ());
}
mlMaxParticles = alMaxParticles;
mlNumOfParticles = 0;
mvMaterials = avMaterials;
// Update vars:
mbDying = false;
mfTime = 0;
mfFrame = 0;
mbUpdateGfx = true;
mbUpdateBV = true;
}
//-----------------------------------------------------------------------
iParticleEmitter::~iParticleEmitter() {
for (int i = 0; i < (int)mvParticles.size(); i++) {
hplDelete(mvParticles[i]);
}
}
//-----------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
// PUBLIC METHODS
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
void iParticleEmitter::Update(float afTimeStep) {
UpdateMotion(afTimeStep);
mfTime++;
mbUpdateGfx = true;
mbUpdateBV = true;
}
//-----------------------------------------------------------------------
void iParticleEmitter::KillInstantly() {
mlMaxParticles = 0;
mlNumOfParticles = 0;
mbDying = true;
}
//-----------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
// PROTECTED METHODS
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
cParticle *iParticleEmitter::CreateParticle() {
if (mlNumOfParticles == mlMaxParticles)
return NULL;
++mlNumOfParticles;
return mvParticles[mlNumOfParticles - 1];
}
//-----------------------------------------------------------------------
void iParticleEmitter::SwapRemove(unsigned int alIndex) {
if (alIndex < mlNumOfParticles - 1) {
cParticle *pTemp = mvParticles[alIndex];
mvParticles[alIndex] = mvParticles[mlNumOfParticles - 1];
mvParticles[mlNumOfParticles - 1] = pTemp;
}
mlNumOfParticles--;
}
//-----------------------------------------------------------------------
} // namespace hpl