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diff --git a/src/particle.cpp b/src/particle.cpp
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-/*
- * The ManaPlus Client
- * Copyright (C) 2006-2009 The Mana World Development Team
- * Copyright (C) 2009-2010 The Mana Developers
- * Copyright (C) 2011-2013 The ManaPlus Developers
- *
- * This file is part of The ManaPlus Client.
- *
- * 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 2 of the License, or
- * 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/>.
- */
-
-#include "particle.h"
-
-#include "animationparticle.h"
-#include "configuration.h"
-#include "resources/dye.h"
-#include "logger.h"
-#include "map.h"
-#include "particleemitter.h"
-#include "rotationalparticle.h"
-#include "textparticle.h"
-
-#include "resources/resourcemanager.h"
-
-#include "gui/sdlfont.h"
-
-#include "utils/dtor.h"
-#include "utils/mathutils.h"
-
-#include <guichan/color.hpp>
-
-#include <algorithm>
-#include <cmath>
-
-#include "debug.h"
-
-static const float SIN45 = 0.707106781f;
-
-class Graphics;
-class Image;
-
-int Particle::particleCount = 0;
-int Particle::maxCount = 0;
-int Particle::fastPhysics = 0;
-int Particle::emitterSkip = 1;
-bool Particle::enabled = true;
-const float Particle::PARTICLE_SKY = 800.0f;
-
-Particle::Particle(Map *const map) :
- Actor(),
- mAlpha(1.0f),
- mLifetimeLeft(-1),
- mLifetimePast(0),
- mFadeOut(0),
- mFadeIn(0),
- mVelocity(),
- mAlive(ALIVE),
- mChildEmitters(),
- mChildParticles(),
- mDeathEffect(),
- mGravity(0.0f),
- mBounce(0.0f),
- mAcceleration(0.0f),
- mInvDieDistance(-1.0f),
- mMomentum(1.0f),
- mTarget(nullptr),
- mRandomness(0),
- mDeathEffectConditions(0x00),
- mAutoDelete(true),
- mAllowSizeAdjust(false),
- mFollow(false)
-{
- setMap(map);
- Particle::particleCount++;
-}
-
-Particle::~Particle()
-{
- // Delete child emitters and child particles
- clear();
- Particle::particleCount--;
-}
-
-void Particle::setupEngine()
-{
- Particle::maxCount = config.getIntValue("particleMaxCount");
- Particle::fastPhysics = config.getIntValue("particleFastPhysics");
- Particle::emitterSkip = config.getIntValue("particleEmitterSkip") + 1;
- if (!Particle::emitterSkip)
- Particle::emitterSkip = 1;
- Particle::enabled = config.getBoolValue("particleeffects");
- disableAutoDelete();
- logger->log1("Particle engine set up");
-}
-
-bool Particle::draw(Graphics *const, const int, const int) const
-{
- return false;
-}
-
-bool Particle::update()
-{
- if (!mMap)
- return false;
-
- if (mLifetimeLeft == 0 && mAlive == ALIVE)
- mAlive = DEAD_TIMEOUT;
-
- const Vector oldPos = mPos;
-
- if (mAlive == ALIVE)
- {
- // calculate particle movement
- if (mMomentum != 1.0f)
- mVelocity *= mMomentum;
-
- if (mTarget && mAcceleration != 0.0f)
- {
- Vector dist = mPos - mTarget->mPos;
- dist.x *= SIN45;
- float invHypotenuse;
-
- switch (Particle::fastPhysics)
- {
- case 1:
- invHypotenuse = fastInvSqrt(
- dist.x * dist.x + dist.y * dist.y + dist.z * dist.z);
- break;
- case 2:
- if (!dist.x)
- {
- invHypotenuse = 0;
- break;
- }
-
- invHypotenuse = 2.0f / (static_cast<float>(fabs(dist.x))
- + static_cast<float>(fabs(dist.y))
- + static_cast<float>(fabs(dist.z)));
- break;
- default:
- invHypotenuse = 1.0f / static_cast<float>(sqrt(
- dist.x * dist.x + dist.y * dist.y + dist.z * dist.z));
- break;
- }
-
- if (invHypotenuse)
- {
- if (mInvDieDistance > 0.0f && invHypotenuse > mInvDieDistance)
- mAlive = DEAD_IMPACT;
- const float accFactor = invHypotenuse * mAcceleration;
- mVelocity -= dist * accFactor;
- }
- }
-
- if (mRandomness > 0)
- {
- mVelocity.x += static_cast<float>((rand() % mRandomness - rand()
- % mRandomness)) / 1000.0f;
- mVelocity.y += static_cast<float>((rand() % mRandomness - rand()
- % mRandomness)) / 1000.0f;
- mVelocity.z += static_cast<float>((rand() % mRandomness - rand()
- % mRandomness)) / 1000.0f;
- }
-
- mVelocity.z -= mGravity;
-
- // Update position
- mPos.x += mVelocity.x;
- mPos.y += mVelocity.y * SIN45;
- mPos.z += mVelocity.z * SIN45;
-
- // Update other stuff
- if (mLifetimeLeft > 0)
- mLifetimeLeft--;
-
- mLifetimePast++;
-
- if (mPos.z < 0.0f)
- {
- if (mBounce > 0.0f)
- {
- mPos.z *= -mBounce;
- mVelocity *= mBounce;
- mVelocity.z = -mVelocity.z;
- }
- else
- {
- mAlive = DEAD_FLOOR;
- }
- }
- else if (mPos.z > PARTICLE_SKY)
- {
- mAlive = DEAD_SKY;
- }
-
- // Update child emitters
- if (Particle::emitterSkip && (mLifetimePast - 1)
- % Particle::emitterSkip == 0)
- {
- FOR_EACH (EmitterConstIterator, e, mChildEmitters)
- {
- Particles newParticles = (*e)->createParticles(mLifetimePast);
- FOR_EACH (ParticleConstIterator, it, newParticles)
- {
- Particle *const p = *it;
- p->moveBy(mPos);
- mChildParticles.push_back(p);
- }
- }
- }
- }
-
- // create death effect when the particle died
- if (mAlive != ALIVE && mAlive != DEAD_LONG_AGO)
- {
- if ((mAlive & mDeathEffectConditions) > 0x00 && !mDeathEffect.empty())
- {
- Particle *const deathEffect = particleEngine->addEffect(
- mDeathEffect, 0, 0);
- if (deathEffect)
- deathEffect->moveBy(mPos);
- }
- mAlive = DEAD_LONG_AGO;
- }
-
- const Vector change = mPos - oldPos;
-
- // Update child particles
-
- for (ParticleIterator p = mChildParticles.begin(),
- p2 = mChildParticles.end(); p != p2; )
- {
- Particle *const particle = *p;
- // move particle with its parent if desired
- if (particle->mFollow)
- particle->moveBy(change);
-
- // update particle
- if (particle->update())
- {
- ++p;
- }
- else
- {
- delete particle;
- p = mChildParticles.erase(p);
- }
- }
- if (mAlive != ALIVE && mChildParticles.empty() && mAutoDelete)
- return false;
-
- return true;
-}
-
-void Particle::moveBy(const Vector &change)
-{
- mPos += change;
- FOR_EACH (ParticleConstIterator, p, mChildParticles)
- {
- Particle *const particle = *p;
- if (particle->mFollow)
- particle->moveBy(change);
- }
-}
-
-void Particle::moveTo(const float x, const float y)
-{
- moveTo(Vector(x, y, mPos.z));
-}
-
-Particle *Particle::createChild()
-{
- Particle *const newParticle = new Particle(mMap);
- mChildParticles.push_back(newParticle);
- return newParticle;
-}
-
-Particle *Particle::addEffect(const std::string &particleEffectFile,
- const int pixelX, const int pixelY,
- const int rotation)
-{
- Particle *newParticle = nullptr;
-
- const size_t pos = particleEffectFile.find('|');
- const std::string dyePalettes = (pos != std::string::npos)
- ? particleEffectFile.substr(pos + 1) : "";
- XML::Document doc(particleEffectFile.substr(0, pos));
- const XmlNodePtr rootNode = doc.rootNode();
-
- if (!rootNode || !xmlNameEqual(rootNode, "effect"))
- {
- logger->log("Error loading particle: %s", particleEffectFile.c_str());
- return nullptr;
- }
-
- ResourceManager *const resman = ResourceManager::getInstance();
-
- // Parse particles
- for_each_xml_child_node(effectChildNode, rootNode)
- {
- // We're only interested in particles
- if (!xmlNameEqual(effectChildNode, "particle"))
- continue;
-
- // Determine the exact particle type
- XmlNodePtr node;
-
- // Animation
- if ((node = XML::findFirstChildByName(effectChildNode, "animation")))
- {
- newParticle = new AnimationParticle(mMap, node, dyePalettes);
- }
- // Rotational
- else if ((node = XML::findFirstChildByName(
- effectChildNode, "rotation")))
- {
- newParticle = new RotationalParticle(mMap, node, dyePalettes);
- }
- // Image
- else if ((node = XML::findFirstChildByName(effectChildNode, "image")))
- {
- std::string imageSrc = reinterpret_cast<const char*>(
- node->xmlChildrenNode->content);
- if (!imageSrc.empty() && !dyePalettes.empty())
- Dye::instantiate(imageSrc, dyePalettes);
- Image *const img = resman->getImage(imageSrc);
-
- newParticle = new ImageParticle(mMap, img);
- }
- // Other
- else
- {
- newParticle = new Particle(mMap);
- }
-
- // Read and set the basic properties of the particle
- const float offsetX = static_cast<float>(XML::getFloatProperty(
- effectChildNode, "position-x", 0));
- const float offsetY = static_cast<float>(XML::getFloatProperty(
- effectChildNode, "position-y", 0));
- const float offsetZ = static_cast<float>(XML::getFloatProperty(
- effectChildNode, "position-z", 0));
- const Vector position(mPos.x + static_cast<float>(pixelX) + offsetX,
- mPos.y + static_cast<float>(pixelY) + offsetY,
- mPos.z + offsetZ);
- newParticle->moveTo(position);
-
- const int lifetime = XML::getProperty(effectChildNode, "lifetime", -1);
- newParticle->setLifetime(lifetime);
- const bool resizeable = "false" != XML::getProperty(effectChildNode,
- "size-adjustable", "false");
-
- newParticle->setAllowSizeAdjust(resizeable);
-
- // Look for additional emitters for this particle
- for_each_xml_child_node(emitterNode, effectChildNode)
- {
- if (xmlNameEqual(emitterNode, "emitter"))
- {
- ParticleEmitter *const newEmitter = new ParticleEmitter(
- emitterNode, newParticle, mMap, rotation, dyePalettes);
- newParticle->addEmitter(newEmitter);
- }
- else if (xmlNameEqual(emitterNode, "deatheffect"))
- {
- const std::string deathEffect = reinterpret_cast<const char*>(
- emitterNode->xmlChildrenNode->content);
-
- char deathEffectConditions = 0x00;
- if (XML::getBoolProperty(emitterNode, "on-floor", true))
- {
- deathEffectConditions += static_cast<signed char>(
- Particle::DEAD_FLOOR);
- }
- if (XML::getBoolProperty(emitterNode, "on-sky", true))
- {
- deathEffectConditions += static_cast<signed char>(
- Particle::DEAD_SKY);
- }
- if (XML::getBoolProperty(emitterNode, "on-other", false))
- {
- deathEffectConditions += static_cast<signed char>(
- Particle::DEAD_OTHER);
- }
- if (XML::getBoolProperty(emitterNode, "on-impact", true))
- {
- deathEffectConditions += static_cast<signed char>(
- Particle::DEAD_IMPACT);
- }
- if (XML::getBoolProperty(emitterNode, "on-timeout", true))
- {
- deathEffectConditions += static_cast<signed char>(
- Particle::DEAD_TIMEOUT);
- }
- newParticle->setDeathEffect(
- deathEffect, deathEffectConditions);
- }
- }
-
- mChildParticles.push_back(newParticle);
- }
-
- return newParticle;
-}
-
-Particle *Particle::addTextSplashEffect(const std::string &text,
- const int x, const int y,
- const gcn::Color *const color,
- gcn::Font *const font,
- const bool outline)
-{
- Particle *const newParticle = new TextParticle(
- mMap, text, color, font, outline);
- newParticle->moveTo(static_cast<float>(x), static_cast<float>(y));
- newParticle->setVelocity(
- static_cast<float>((rand() % 100) - 50) / 200.0f, // X
- static_cast<float>((rand() % 100) - 50) / 200.0f, // Y
- (static_cast<float>((rand() % 100)) / 200.0f) + 4.0f); // Z
-
- newParticle->setGravity(0.1f);
- newParticle->setBounce(0.5f);
- newParticle->setLifetime(200);
- newParticle->setFadeOut(100);
-
- mChildParticles.push_back(newParticle);
-
- return newParticle;
-}
-
-Particle *Particle::addTextRiseFadeOutEffect(const std::string &text,
- const int x, const int y,
- const gcn::Color *const color,
- gcn::Font *const font,
- const bool outline)
-{
- Particle *const newParticle = new TextParticle(
- mMap, text, color, font, outline);
- newParticle->moveTo(static_cast<float>(x), static_cast<float>(y));
- newParticle->setVelocity(0.0f, 0.0f, 0.5f);
- newParticle->setGravity(0.0015f);
- newParticle->setLifetime(300);
- newParticle->setFadeOut(100);
- newParticle->setFadeIn(0);
-
- mChildParticles.push_back(newParticle);
-
- return newParticle;
-}
-
-void Particle::adjustEmitterSize(const int w, const int h)
-{
- if (mAllowSizeAdjust)
- {
- FOR_EACH (EmitterConstIterator, e, mChildEmitters)
- (*e)->adjustSize(w, h);
- }
-}
-
-void Particle::clear()
-{
- delete_all(mChildEmitters);
- mChildEmitters.clear();
-
- delete_all(mChildParticles);
- mChildParticles.clear();
-}
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