diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/graphics.cpp | 13 | ||||
| -rw-r--r-- | src/graphics.h | 8 | ||||
| -rw-r--r-- | src/imageparticle.cpp | 26 | ||||
| -rw-r--r-- | src/imageparticle.h | 1 | ||||
| -rw-r--r-- | src/particle.cpp | 738 | ||||
| -rw-r--r-- | src/particle.h | 559 | ||||
| -rw-r--r-- | src/resources/image.cpp | 25 |
7 files changed, 676 insertions, 694 deletions
diff --git a/src/graphics.cpp b/src/graphics.cpp index 4ea75a93..1e31f903 100644 --- a/src/graphics.cpp +++ b/src/graphics.cpp @@ -136,8 +136,6 @@ bool Graphics::drawImage(Image *image, int srcX, int srcY, int dstX, int dstY, srcX += image->mBounds.x; srcY += image->mBounds.y; - - SDL_Rect dstRect; SDL_Rect srcRect; dstRect.x = dstX; dstRect.y = dstY; @@ -148,17 +146,6 @@ bool Graphics::drawImage(Image *image, int srcX, int srcY, int dstX, int dstY, return !(SDL_BlitSurface(image->mImage, &srcRect, mScreen, &dstRect) < 0); } -bool Graphics::drawImageTransparent(Image *image, int x, int y, float opacity) -{ - if (!image) return false; - - float oldalpha = image->getAlpha(); - image->setAlpha(opacity * oldalpha); - bool retval = drawImage(image, x, y); - image->setAlpha(oldalpha); - return retval; -} - void Graphics::drawImagePattern(Image *image, int x, int y, int w, int h) { int iw = image->getWidth(); diff --git a/src/graphics.h b/src/graphics.h index abef794f..b3d36653 100644 --- a/src/graphics.h +++ b/src/graphics.h @@ -97,14 +97,6 @@ class Graphics : public gcn::SDLGraphics { int dstX, int dstY, int width, int height); - /** - * Blits an image onto the screen with an alpha factor - * - * @return <code>true</code> if the image was blitted properly - * <code>false</code> otherwise. - */ - bool drawImageTransparent(Image *image, int x, int y, float opacity); - virtual void drawImagePattern(Image *image, int x, int y, diff --git a/src/imageparticle.cpp b/src/imageparticle.cpp index 86e7e50f..410782bd 100644 --- a/src/imageparticle.cpp +++ b/src/imageparticle.cpp @@ -18,6 +18,7 @@ * along with The Mana World; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * + * $Id$ */ #include "imageparticle.h" @@ -37,31 +38,26 @@ void ImageParticle::draw(Graphics *graphics, int offsetX, int offsetY) const if (!mAlive) return; - int screenX = (int)mPosX + offsetX - mImage->getWidth()/2; - int screenY = (int)mPosY - int(mPosZ) + offsetY - mImage->getHeight()/2; + int screenX = (int) mPosX + offsetX - mImage->getWidth() / 2; + int screenY = (int) mPosY - (int) mPosZ + offsetY - mImage->getHeight()/2; - // check if on screen - if (screenX + mImage->getWidth() < 0 || + // Check if on screen + if (screenX + mImage->getWidth() < 0 || screenX > graphics->getWidth() || screenY + mImage->getHeight() < 0 || screenY > graphics->getHeight()) + { return; + } float alphafactor = 1.0f; if (mLifetimeLeft > -1 && mLifetimeLeft < mFadeOut) - alphafactor *= ((float)mLifetimeLeft / (float)mFadeOut); + alphafactor *= (float) mLifetimeLeft / (float) mFadeOut; if (mLifetimePast < mFadeIn) - alphafactor *= ((float)mLifetimePast / (float)mFadeIn); + alphafactor *= (float) mLifetimePast / (float) mFadeIn; - if (alphafactor < 1.0f) { - graphics->drawImageTransparent(mImage, - screenX, - screenY, - alphafactor - ); - } else { - graphics->drawImage(mImage, screenX, screenY); - } + mImage->setAlpha(alphafactor); + graphics->drawImage(mImage, screenX, screenY); } diff --git a/src/imageparticle.h b/src/imageparticle.h index 4396fb7c..afde7446 100644 --- a/src/imageparticle.h +++ b/src/imageparticle.h @@ -18,6 +18,7 @@ * along with The Mana World; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * + * $Id$ */ #ifndef _IMAGEPARTICLE_H diff --git a/src/particle.cpp b/src/particle.cpp index 88e8c2b3..f88b9c21 100644 --- a/src/particle.cpp +++ b/src/particle.cpp @@ -1,368 +1,370 @@ -/*
- * The Mana World
- * Copyright 2006 The Mana World Development Team
- *
- * This file is part of The Mana World.
- *
- * The Mana World 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.
- *
- * The Mana World 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 The Mana World; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include "particle.h"
-
-#include <cmath>
-
-#include "animationparticle.h"
-#include "configuration.h"
-#include "imageparticle.h"
-#include "log.h"
-#include "map.h"
-#include "particleemitter.h"
-#include "textparticle.h"
-
-#include "resources/resourcemanager.h"
-
-#include "utils/dtor.h"
-#include "utils/fastsqrt.h"
-#include "utils/xml.h"
-
-class Graphics;
-class Image;
-
-int Particle::particleCount = 0;
-int Particle::maxCount = 0;
-int Particle::fastPhysics = 0;
-int Particle::emitterSkip = 1;
-const float Particle::PARTICLE_SKY = 800.0f;
-
-Particle::Particle(Map *map) :
- mAlive(true),
- mPosX(0.0f), mPosY(0.0f), mPosZ(0.0f),
- mLifetimeLeft(-1),
- mLifetimePast(0),
- mFadeOut(0),
- mFadeIn(0),
- mAutoDelete(true),
- mMap(map),
- mVectorX(0.0f), mVectorY(0.0f), mVectorZ(0.0f),
- mGravity(0.0f),
- mRandomnes(0),
- mBounce(0.0f),
- mTarget(NULL),
- mAcceleration(0.0f),
- mInvDieDistance(-1.0f),
- mMomentum(1.0f)
-{
- Particle::particleCount++;
- if (mMap) setSpriteIterator(mMap->addSprite(this));
-}
-
-
-void
-Particle::setupEngine()
-{
- Particle::maxCount = (int)config.getValue("particleMaxCount", 3000);
- Particle::fastPhysics = (int)config.getValue("particleFastPhysics", 0);
- Particle::emitterSkip = (int)config.getValue("particleEmitterSkip", 0) + 1;
- disableAutoDelete();
- logger->log("Particle engine set up");
-}
-
-bool
-Particle::update()
-{
- if (!mMap) return false;
-
- if (mLifetimeLeft == 0)
- {
- mAlive = false;
- }
-
- if (mAlive)
- {
- //update child emitters
- if (mLifetimePast%Particle::emitterSkip == 0)
- {
- for ( EmitterIterator e = mChildEmitters.begin();
- e != mChildEmitters.end();
- e++
- )
- {
- Particles newParticles = (*e)->createParticles();
- for ( ParticleIterator p = newParticles.begin();
- p != newParticles.end();
- p++
- )
- {
- (*p)->moveBy(mPosX, mPosY, mPosZ);
- mChildParticles.push_back (*p);
- }
- }
- }
-
- if (mMomentum != 1.0f)
- {
- mVectorX *= mMomentum;
- mVectorY *= mMomentum;
- mVectorZ *= mMomentum;
- }
-
- if (mTarget && mAcceleration != 0.0f)
- {
- float distX = mPosX - mTarget->getPosX();
- float distY = mPosY - mTarget->getPosY();
- float distZ = mPosZ - mTarget->getPosZ();
- float invHypotenuse;
-
- switch(Particle::fastPhysics)
- {
- case 1:
- invHypotenuse = fastInvSqrt(
- distX * distX + distY * distY + distZ * distZ);
- break;
- case 2:
- invHypotenuse = 2.0f /
- fabs(distX) + fabs(distY) + fabs(distZ);
- break;
- default:
- invHypotenuse = 1.0f / sqrt(
- distX * distX + distY * distY + distZ * distZ);
- break;
- }
-
- if (invHypotenuse)
- {
- if (mInvDieDistance > 0.0f && invHypotenuse > mInvDieDistance)
- {
- mAlive = false;
- }
- float accFactor = invHypotenuse * mAcceleration;
- mVectorX -= distX * accFactor;
- mVectorY -= distY * accFactor;
- mVectorZ -= distZ * accFactor;
- }
- }
-
- if (mRandomnes > 0)
- {
- mVectorX += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f;
- mVectorY += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f;
- mVectorZ += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f;
- }
-
- mVectorZ -= mGravity;
-
- // update position
- mPosX += mVectorX;
- mPosY += mVectorY;
- mPosZ += mVectorZ;
-
- //update other stuff
- if (mLifetimeLeft > 0)
- {
- mLifetimeLeft--;
- }
- mLifetimePast++;
-
- if (mPosZ > PARTICLE_SKY || mPosZ < 0.0f)
- {
- if (mBounce > 0.0f)
- {
- mPosZ *= -mBounce;
- mVectorX *= mBounce;
- mVectorY *= mBounce;
- mVectorZ *= -mBounce;
- }
- else {
- mAlive = false;
- }
- }
- }
-
- //update child particles
- for ( ParticleIterator p = mChildParticles.begin();
- p != mChildParticles.end();
-
- )
- {
- if ((*p)->update())
- {
- p++;
- }else {
- delete (*p);
- p = mChildParticles.erase(p);
- }
- }
-
- if (!mAlive && mChildParticles.empty() && mAutoDelete)
- {
- return false;
- };
-
- return true;
-}
-
-
-void Particle::draw(Graphics *graphics, int offsetX, int offsetY) const
-{
-}
-
-
-Particle*
-Particle::addEffect (std::string particleEffectFile, int pixelX, int pixelY)
-{
- Particle *newParticle = NULL;
-
- // XML parser initialisation stuff
- int size;
- ResourceManager *resman = ResourceManager::getInstance();
- char *data = (char*) resman->loadFile(particleEffectFile.c_str(), size);
-
- if (!data) {
- logger->log("Warning: Particle engine could not find %s !",
- particleEffectFile.c_str());
- return NULL;
- }
-
- xmlDocPtr doc = xmlParseMemory(data, size);
- free(data);
-
- if (!doc) {
- logger->log("Warning: Particle engine found syntax error in %s!",
- particleEffectFile.c_str());
- return NULL;
- }
-
- xmlNodePtr rootNode = xmlDocGetRootElement(doc);
- if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "effect")) {
- logger->log("Warning: %s is not a valid particle effect definition file!",
- particleEffectFile.c_str());
- return NULL;
- }
-
- // parse particles
- for_each_xml_child_node(effectChildNode, rootNode)
- {
- // We're only interested in particles
- if (!xmlStrEqual(effectChildNode->name, BAD_CAST "particle"))
- continue;
-
- // Determine the exact particle type
- xmlNodePtr node;
-
- // Animation
- if ((node = XML::findFirstChildByName(
- effectChildNode, "animation"))) {
- newParticle = new AnimationParticle(mMap, node);
- }
- // Image
- else if ((node = XML::findFirstChildByName(
- effectChildNode, "image"))) {
- Image *img= resman->getImage((const char*)
- node->xmlChildrenNode->content);
-
- newParticle = new ImageParticle(mMap, img);
- }
- // Other
- else {
- newParticle = new Particle(mMap);
- }
-
- // Read and set the basic properties of the particle
- int offsetX = XML::getProperty(effectChildNode, "position-x", 0);
- int offsetY = XML::getProperty(effectChildNode, "position-y", 0);
- int offsetZ = XML::getProperty(effectChildNode, "position-z", 0);
-
- int particleX = (int)mPosX + pixelX + offsetX;
- int particleY = (int)mPosY + pixelY + offsetY;
- int particleZ = (int)mPosZ + offsetZ;
-
- int lifetime = XML::getProperty(effectChildNode, "lifetime", -1);
-
- newParticle->setPosition(particleX, particleY, particleZ);
- newParticle->setLifetime(lifetime);
-
- // Look for additional emitters for this particle
- for_each_xml_child_node(emitterNode, effectChildNode)
- {
- if (!xmlStrEqual(emitterNode->name, BAD_CAST "emitter"))
- continue;
-
- ParticleEmitter *newEmitter;
- newEmitter = new ParticleEmitter(emitterNode, newParticle, mMap);
- newParticle->addEmitter(newEmitter);
- }
-
- mChildParticles.push_back(newParticle);
- }
-
- return newParticle;
-}
-
-
-Particle*
-Particle::addTextSplashEffect(std::string text,
- int colorR, int colorG, int colorB,
- gcn::Font *font, int x, int y)
-{
- Particle *newParticle = new TextParticle(mMap, text, colorR, colorG, colorB,
- font);
- newParticle->setPosition(x, y, 0);
- newParticle->setVector ( ((rand()%100) - 50) / 200.0f, //X Vector
- ((rand()%100) - 50) / 200.0f, //Y Vector
- ((rand()%100) / 200.0f) + 4.0f //Z Vector
- );
- newParticle->setGravity(0.1f);
- newParticle->setBounce(0.5f);
- newParticle->setLifetime(200);
- newParticle->setFadeOut(100);
-
- mChildParticles.push_back(newParticle);
-
- return newParticle;
-}
-
-
-void
-Particle::setMap(Map *map)
-{
- mMap = map;
- if (mMap) setSpriteIterator(mMap->addSprite(this));
-
- // TODO: Create map emitters based on emitter data in map data
-}
-
-
-Particle::~Particle()
-{
- //remove from map sprite list
- if (mMap) mMap->removeSprite(mSpriteIterator);
- //delete child emitters and child particles
- clear();
- Particle::particleCount--;
-}
-
-
-void
-Particle::clear()
-{
- std::for_each(mChildEmitters.begin(), mChildEmitters.end(),
- make_dtor(mChildEmitters));
- mChildEmitters.clear();
-
- std::for_each(mChildParticles.begin(), mChildParticles.end(),
- make_dtor(mChildParticles));
- mChildParticles.clear();
-}
+/* + * The Mana World + * Copyright 2006 The Mana World Development Team + * + * This file is part of The Mana World. + * + * The Mana World 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. + * + * The Mana World 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 The Mana World; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id$ + */ + +#include "particle.h" + +#include <cmath> + +#include "animationparticle.h" +#include "configuration.h" +#include "imageparticle.h" +#include "log.h" +#include "map.h" +#include "particleemitter.h" +#include "textparticle.h" + +#include "resources/resourcemanager.h" + +#include "utils/dtor.h" +#include "utils/fastsqrt.h" +#include "utils/xml.h" + +class Graphics; +class Image; + +int Particle::particleCount = 0; +int Particle::maxCount = 0; +int Particle::fastPhysics = 0; +int Particle::emitterSkip = 1; +const float Particle::PARTICLE_SKY = 800.0f; + +Particle::Particle(Map *map) : + mAlive(true), + mPosX(0.0f), mPosY(0.0f), mPosZ(0.0f), + mLifetimeLeft(-1), + mLifetimePast(0), + mFadeOut(0), + mFadeIn(0), + mAutoDelete(true), + mMap(map), + mVectorX(0.0f), mVectorY(0.0f), mVectorZ(0.0f), + mGravity(0.0f), + mRandomnes(0), + mBounce(0.0f), + mTarget(NULL), + mAcceleration(0.0f), + mInvDieDistance(-1.0f), + mMomentum(1.0f) +{ + Particle::particleCount++; + if (mMap) setSpriteIterator(mMap->addSprite(this)); +} + + +void +Particle::setupEngine() +{ + Particle::maxCount = (int)config.getValue("particleMaxCount", 3000); + Particle::fastPhysics = (int)config.getValue("particleFastPhysics", 0); + Particle::emitterSkip = (int)config.getValue("particleEmitterSkip", 0) + 1; + disableAutoDelete(); + logger->log("Particle engine set up"); +} + +bool +Particle::update() +{ + if (!mMap) return false; + + if (mLifetimeLeft == 0) + { + mAlive = false; + } + + if (mAlive) + { + // Update child emitters + if (mLifetimePast%Particle::emitterSkip == 0) + { + for ( EmitterIterator e = mChildEmitters.begin(); + e != mChildEmitters.end(); + e++ + ) + { + Particles newParticles = (*e)->createParticles(); + for ( ParticleIterator p = newParticles.begin(); + p != newParticles.end(); + p++ + ) + { + (*p)->moveBy(mPosX, mPosY, mPosZ); + mChildParticles.push_back (*p); + } + } + } + + if (mMomentum != 1.0f) + { + mVectorX *= mMomentum; + mVectorY *= mMomentum; + mVectorZ *= mMomentum; + } + + if (mTarget && mAcceleration != 0.0f) + { + float distX = mPosX - mTarget->getPosX(); + float distY = mPosY - mTarget->getPosY(); + float distZ = mPosZ - mTarget->getPosZ(); + float invHypotenuse; + + switch(Particle::fastPhysics) + { + case 1: + invHypotenuse = fastInvSqrt( + distX * distX + distY * distY + distZ * distZ); + break; + case 2: + invHypotenuse = 2.0f / + fabs(distX) + fabs(distY) + fabs(distZ); + break; + default: + invHypotenuse = 1.0f / sqrt( + distX * distX + distY * distY + distZ * distZ); + break; + } + + if (invHypotenuse) + { + if (mInvDieDistance > 0.0f && invHypotenuse > mInvDieDistance) + { + mAlive = false; + } + float accFactor = invHypotenuse * mAcceleration; + mVectorX -= distX * accFactor; + mVectorY -= distY * accFactor; + mVectorZ -= distZ * accFactor; + } + } + + if (mRandomnes > 0) + { + mVectorX += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVectorY += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVectorZ += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + } + + mVectorZ -= mGravity; + + // Update position + mPosX += mVectorX; + mPosY += mVectorY; + mPosZ += mVectorZ; + + // Update other stuff + if (mLifetimeLeft > 0) + { + mLifetimeLeft--; + } + mLifetimePast++; + + if (mPosZ > PARTICLE_SKY || mPosZ < 0.0f) + { + if (mBounce > 0.0f) + { + mPosZ *= -mBounce; + mVectorX *= mBounce; + mVectorY *= mBounce; + mVectorZ *= -mBounce; + } + else { + mAlive = false; + } + } + } + + // Update child particles + for ( ParticleIterator p = mChildParticles.begin(); + p != mChildParticles.end(); + + ) + { + if ((*p)->update()) + { + p++; + } else { + delete (*p); + p = mChildParticles.erase(p); + } + } + + if (!mAlive && mChildParticles.empty() && mAutoDelete) + { + return false; + } + + return true; +} + + +void Particle::draw(Graphics *graphics, int offsetX, int offsetY) const +{ +} + + +Particle* +Particle::addEffect(std::string particleEffectFile, int pixelX, int pixelY) +{ + Particle *newParticle = NULL; + + // XML parser initialisation stuff + int size; + ResourceManager *resman = ResourceManager::getInstance(); + char *data = (char*) resman->loadFile(particleEffectFile.c_str(), size); + + if (!data) { + logger->log("Warning: Particle engine could not find %s !", + particleEffectFile.c_str()); + return NULL; + } + + xmlDocPtr doc = xmlParseMemory(data, size); + free(data); + + if (!doc) { + logger->log("Warning: Particle engine found syntax error in %s!", + particleEffectFile.c_str()); + return NULL; + } + + xmlNodePtr rootNode = xmlDocGetRootElement(doc); + if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "effect")) + { + logger->log("Warning: %s is not a valid particle effect definition file!", + particleEffectFile.c_str()); + return NULL; + } + + // Parse particles + for_each_xml_child_node(effectChildNode, rootNode) + { + // We're only interested in particles + if (!xmlStrEqual(effectChildNode->name, BAD_CAST "particle")) + continue; + + // Determine the exact particle type + xmlNodePtr node; + + // Animation + if ((node = XML::findFirstChildByName( + effectChildNode, "animation"))) { + newParticle = new AnimationParticle(mMap, node); + } + // Image + else if ((node = XML::findFirstChildByName( + effectChildNode, "image"))) { + Image *img= resman->getImage((const char*) + node->xmlChildrenNode->content); + + newParticle = new ImageParticle(mMap, img); + } + // Other + else { + newParticle = new Particle(mMap); + } + + // Read and set the basic properties of the particle + int offsetX = XML::getProperty(effectChildNode, "position-x", 0); + int offsetY = XML::getProperty(effectChildNode, "position-y", 0); + int offsetZ = XML::getProperty(effectChildNode, "position-z", 0); + + int particleX = (int)mPosX + pixelX + offsetX; + int particleY = (int)mPosY + pixelY + offsetY; + int particleZ = (int)mPosZ + offsetZ; + + int lifetime = XML::getProperty(effectChildNode, "lifetime", -1); + + newParticle->setPosition(particleX, particleY, particleZ); + newParticle->setLifetime(lifetime); + + // Look for additional emitters for this particle + for_each_xml_child_node(emitterNode, effectChildNode) + { + if (!xmlStrEqual(emitterNode->name, BAD_CAST "emitter")) + continue; + + ParticleEmitter *newEmitter; + newEmitter = new ParticleEmitter(emitterNode, newParticle, mMap); + newParticle->addEmitter(newEmitter); + } + + mChildParticles.push_back(newParticle); + } + + return newParticle; +} + + +Particle* +Particle::addTextSplashEffect(std::string text, + int colorR, int colorG, int colorB, + gcn::Font *font, int x, int y) +{ + Particle *newParticle = new TextParticle(mMap, text, colorR, colorG, colorB, + font); + newParticle->setPosition(x, y, 0); + newParticle->setVector ( ((rand()%100) - 50) / 200.0f, // X vector + ((rand()%100) - 50) / 200.0f, // Y vector + ((rand()%100) / 200.0f) + 4.0f // Z vector + ); + newParticle->setGravity(0.1f); + newParticle->setBounce(0.5f); + newParticle->setLifetime(200); + newParticle->setFadeOut(100); + + mChildParticles.push_back(newParticle); + + return newParticle; +} + + +void +Particle::setMap(Map *map) +{ + mMap = map; + if (mMap) setSpriteIterator(mMap->addSprite(this)); + + // TODO: Create map emitters based on emitter data in map data +} + + +Particle::~Particle() +{ + // Remove from map sprite list + if (mMap) mMap->removeSprite(mSpriteIterator); + // Delete child emitters and child particles + clear(); + Particle::particleCount--; +} + + +void +Particle::clear() +{ + std::for_each(mChildEmitters.begin(), mChildEmitters.end(), + make_dtor(mChildEmitters)); + mChildEmitters.clear(); + + std::for_each(mChildParticles.begin(), mChildParticles.end(), + make_dtor(mChildParticles)); + mChildParticles.clear(); +} diff --git a/src/particle.h b/src/particle.h index 4073abdd..544a7f58 100644 --- a/src/particle.h +++ b/src/particle.h @@ -1,279 +1,280 @@ -/*
- * The Mana World
- * Copyright 2006 The Mana World Development Team
- *
- * This file is part of The Mana World.
- *
- * The Mana World 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.
- *
- * The Mana World 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 The Mana World; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef _PARTICLE_H
-#define _PARTICLE_H
-
-#include <list>
-#include <string>
-
-#include <guichan/color.hpp>
-
-#include "guichanfwd.h"
-#include "sprite.h"
-
-
-class Map;
-class Particle;
-class ParticleEmitter;
-
-typedef std::list<Particle *> Particles;
-typedef Particles::iterator ParticleIterator;
-typedef std::list<ParticleEmitter *> Emitters;
-typedef Emitters::iterator EmitterIterator;
-
-/**
- * a particle spawned by a ParticleEmitter
- */
-class Particle : public Sprite
-{
- public:
- static const float PARTICLE_SKY; /**< maximum Z position of particles */
- static int fastPhysics; /**< mode of squareroot calculation */
- static int particleCount; /**< current number of particles*/
- static int maxCount; /**< maximum number of particles*/
- static int emitterSkip; /**< duration of pause between two emitter updates in ticks */
-
- Particle(Map *map);
-
- ~Particle();
-
- /**
- * Deletes all child particles and emitters
- */
- void
- clear();
-
- /**
- * Gives a particle the properties of an engine root particle and loads
- * the particle-related config settings
- */
- void
- setupEngine();
-
- /**
- * Updates particle position, returns false when the particle should
- * be deleted
- */
- virtual bool
- update();
-
- /**
- * Draws the particle image
- */
- virtual void
- draw(Graphics *graphics, int offsetX, int offsetY) const;
-
- /**
- * Necessary for sorting with the other sprites
- */
- virtual int
- getPixelY() const
- {
- return (int)(mPosY + mPosZ) - 64;
- };
-
- /*
- Basic Particle properites:
- */
-
- /**
- * Sets the map the particle is on
- */
- void setMap(Map *map);
-
- /**
- * Creates a child particle that hosts some emitters described in the
- * particleEffectFile
- */
- Particle*
- addEffect (std::string particleEffectFile, int pixelX, int pixelY);
-
- /**
- * Creates a standalone text particle
- */
- Particle*
- addTextSplashEffect(std::string text, int colorR, int colorG, int colorB,
- gcn::Font *font, int x, int y);
-
- /**
- * Adds an emitter to the particle
- */
- void
- addEmitter (ParticleEmitter* emitter)
- { mChildEmitters.push_back(emitter);};
-
- /**
- * Sets the position in 3 dimensional space in pixels relative to map
- */
- void
- setPosition(float x, float y, float z)
- { mPosX = x; mPosY = y; mPosZ = z; };
-
- /**
- * Sets the position in 2 dimensional space in pixels relative to map
- */
- void
- setPosition(float x, float y)
- { mPosX = x; mPosY = y; };
-
- float getPosX() const
- { return mPosX; };
-
- float getPosY() const
- { return mPosY; };
-
- float getPosZ() const
- { return mPosZ; };
-
- /**
- * Changes the particle position relative
- */
- void
- moveBy(float x, float y, float z)
- { mPosX += x; mPosY += y; mPosZ += z; };
-
- /**
- * Sets the time in game ticks until the particle is destroyed.
- */
- void
- setLifetime(int lifetime)
- { mLifetimeLeft = lifetime; mLifetimePast = 0; };
-
- /**
- * Sets the age of the pixel in game ticks where the particle has
- * faded in completely
- */
- void
- setFadeOut (int fadeOut)
- { mFadeOut = fadeOut; };
-
- /**
- * Sets the remaining particle lifetime where the particle starts to
- * fade out
- */
- void
- setFadeIn (int fadeIn)
- { mFadeIn = fadeIn; };
-
- /**
- * Sets the sprite iterator of the particle on the current map to make
- * it easier to remove the particle from the map when it is destroyed
- */
- void
- setSpriteIterator(std::list<Sprite*>::iterator spriteIterator)
- { mSpriteIterator = spriteIterator; };
-
- /**
- * Gets the sprite iterator of the particle on the current map
- */
- std::list<Sprite*>::iterator
- getSpriteIterator() const
- { return mSpriteIterator; };
-
- /**
- * Sets the current velocity in 3 dimensional space
- */
- void
- setVector(float x, float y, float z)
- { mVectorX = x; mVectorY = y; mVectorZ = z; };
-
- /**
- * Sets the downward acceleration
- */
- void
- setGravity(float g)
- { mGravity = g; };
-
- /**
- * Sets the ammount of random vector changes
- */
- void
- setRandomnes(int r)
- { mRandomnes = r; };
-
- /**
- * Sets the ammount of velocity particles retain after
- * hitting the ground.
- */
- void
- setBounce(float bouncieness)
- { mBounce = bouncieness; };
-
- /**
- * Makes the particle move toward another particle with a
- * given acceleration and momentum
- */
- void setDestination(Particle *target, float accel, float moment)
- { mTarget = target; mAcceleration = accel; mMomentum = moment; };
-
- /**
- * Sets the distance in pixel the particle can come near the target
- * particle before it is destroyed. Does only make sense after a
- * target particle has been set using setDestination.
- */
- void setDieDistance(float dist)
- { mInvDieDistance = 1.0f / dist; };
-
- /**
- * Manually marks the particle for deletion
- */
- void kill()
- { mAlive = false; mAutoDelete = true; };
-
- /**
- * After calling this function the particle will only request
- * deletion when kill() is called
- */
- void disableAutoDelete()
- { mAutoDelete = false; };
-
- protected:
- bool mAlive; /**< Is the particle supposed to be drawn and updated?*/
- float mPosX, mPosY, mPosZ; /**< Position in 3 dimensonal space - pixel based relative to map */
- int mLifetimeLeft; /**< Lifetime left in game ticks*/
- int mLifetimePast; /**< Age of the particle in game ticks*/
- int mFadeOut; /**< Lifetime in game ticks left where fading out begins*/
- int mFadeIn; /**< Age in game ticks where fading in is finished*/
-
- private:
- // generic properties
- bool mAutoDelete; /**< May the particle request its deletion by the parent particle?*/
- Map *mMap; /**< Map the particle is on*/
- std::list<Sprite*>::iterator mSpriteIterator; /**< iterator of the particle on the current map */
- Emitters mChildEmitters; /**< List of child emitters*/
- Particles mChildParticles; /**< List of particles controlled by this particle*/
- //dynamic particle
- float mVectorX, mVectorY, mVectorZ; /**< Speed in 3 dimensional space in pixels per game-tick */
- float mGravity; /**< Downward acceleration in pixels per game-tickČ*/
- int mRandomnes; /**< Ammount of random vector change*/
- float mBounce; /**< How much the particle bounces off when hitting the ground*/
- //follow-point particles
- Particle *mTarget; /**< The particle that attracts this particle*/
- float mAcceleration; /**< Acceleration towards the target particle in pixels per game-tickČ*/
- float mInvDieDistance; /**< Distance in pixels from the target particle that causes the destruction of the particle*/
- float mMomentum; /**< How much speed the particle retains after each game tick*/
-};
-
-extern Particle *particleEngine;
-
-#endif
+/* + * The Mana World + * Copyright 2006 The Mana World Development Team + * + * This file is part of The Mana World. + * + * The Mana World 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. + * + * The Mana World 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 The Mana World; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id$ + */ + +#ifndef _PARTICLE_H +#define _PARTICLE_H + +#include <list> +#include <string> + +#include <guichan/color.hpp> + +#include "guichanfwd.h" +#include "sprite.h" + + +class Map; +class Particle; +class ParticleEmitter; + +typedef std::list<Particle *> Particles; +typedef Particles::iterator ParticleIterator; +typedef std::list<ParticleEmitter *> Emitters; +typedef Emitters::iterator EmitterIterator; + +/** + * A particle spawned by a ParticleEmitter. + */ +class Particle : public Sprite +{ + public: + static const float PARTICLE_SKY; /**< Maximum Z position of particles */ + static int fastPhysics; /**< Mode of squareroot calculation */ + static int particleCount; /**< Current number of particles */ + static int maxCount; /**< Maximum number of particles */ + static int emitterSkip; /**< Duration of pause between two emitter updates in ticks */ + + Particle(Map *map); + + ~Particle(); + + /** + * Deletes all child particles and emitters + */ + void + clear(); + + /** + * Gives a particle the properties of an engine root particle and loads + * the particle-related config settings + */ + void + setupEngine(); + + /** + * Updates particle position, returns false when the particle should + * be deleted + */ + virtual bool + update(); + + /** + * Draws the particle image + */ + virtual void + draw(Graphics *graphics, int offsetX, int offsetY) const; + + /** + * Necessary for sorting with the other sprites + */ + virtual int + getPixelY() const + { + return (int)(mPosY + mPosZ) - 64; + }; + + /* + Basic Particle properties: + */ + + /** + * Sets the map the particle is on. + */ + void setMap(Map *map); + + /** + * Creates a child particle that hosts some emitters described in the + * particleEffectFile. + */ + Particle* + addEffect(std::string particleEffectFile, int pixelX, int pixelY); + + /** + * Creates a standalone text particle. + */ + Particle* + addTextSplashEffect(std::string text, int colorR, int colorG, int colorB, + gcn::Font *font, int x, int y); + + /** + * Adds an emitter to the particle. + */ + void + addEmitter (ParticleEmitter* emitter) + { mChildEmitters.push_back(emitter); } + + /** + * Sets the position in 3 dimensional space in pixels relative to map + */ + void + setPosition(float x, float y, float z) + { mPosX = x; mPosY = y; mPosZ = z; } + + /** + * Sets the position in 2 dimensional space in pixels relative to map + */ + void + setPosition(float x, float y) + { mPosX = x; mPosY = y; } + + float getPosX() const + { return mPosX; } + + float getPosY() const + { return mPosY; } + + float getPosZ() const + { return mPosZ; } + + /** + * Changes the particle position relative + */ + void + moveBy(float x, float y, float z) + { mPosX += x; mPosY += y; mPosZ += z; } + + /** + * Sets the time in game ticks until the particle is destroyed. + */ + void + setLifetime(int lifetime) + { mLifetimeLeft = lifetime; mLifetimePast = 0; } + + /** + * Sets the age of the pixel in game ticks where the particle has + * faded in completely + */ + void + setFadeOut (int fadeOut) + { mFadeOut = fadeOut; } + + /** + * Sets the remaining particle lifetime where the particle starts to + * fade out + */ + void + setFadeIn (int fadeIn) + { mFadeIn = fadeIn; } + + /** + * Sets the sprite iterator of the particle on the current map to make + * it easier to remove the particle from the map when it is destroyed + */ + void + setSpriteIterator(std::list<Sprite*>::iterator spriteIterator) + { mSpriteIterator = spriteIterator; } + + /** + * Gets the sprite iterator of the particle on the current map + */ + std::list<Sprite*>::iterator + getSpriteIterator() const + { return mSpriteIterator; } + + /** + * Sets the current velocity in 3 dimensional space + */ + void + setVector(float x, float y, float z) + { mVectorX = x; mVectorY = y; mVectorZ = z; } + + /** + * Sets the downward acceleration + */ + void + setGravity(float g) + { mGravity = g; } + + /** + * Sets the ammount of random vector changes + */ + void + setRandomnes(int r) + { mRandomnes = r; } + + /** + * Sets the ammount of velocity particles retain after + * hitting the ground. + */ + void + setBounce(float bouncieness) + { mBounce = bouncieness; } + + /** + * Makes the particle move toward another particle with a + * given acceleration and momentum + */ + void setDestination(Particle *target, float accel, float moment) + { mTarget = target; mAcceleration = accel; mMomentum = moment; } + + /** + * Sets the distance in pixel the particle can come near the target + * particle before it is destroyed. Does only make sense after a + * target particle has been set using setDestination. + */ + void setDieDistance(float dist) + { mInvDieDistance = 1.0f / dist; } + + /** + * Manually marks the particle for deletion + */ + void kill() + { mAlive = false; mAutoDelete = true; } + + /** + * After calling this function the particle will only request + * deletion when kill() is called + */ + void disableAutoDelete() + { mAutoDelete = false; } + + protected: + bool mAlive; /**< Is the particle supposed to be drawn and updated?*/ + float mPosX, mPosY, mPosZ; /**< Position in 3 dimensonal space - pixel based relative to map */ + int mLifetimeLeft; /**< Lifetime left in game ticks*/ + int mLifetimePast; /**< Age of the particle in game ticks*/ + int mFadeOut; /**< Lifetime in game ticks left where fading out begins*/ + int mFadeIn; /**< Age in game ticks where fading in is finished*/ + + private: + // generic properties + bool mAutoDelete; /**< May the particle request its deletion by the parent particle?*/ + Map *mMap; /**< Map the particle is on*/ + std::list<Sprite*>::iterator mSpriteIterator; /**< iterator of the particle on the current map */ + Emitters mChildEmitters; /**< List of child emitters*/ + Particles mChildParticles; /**< List of particles controlled by this particle*/ + //dynamic particle + float mVectorX, mVectorY, mVectorZ; /**< Speed in 3 dimensional space in pixels per game-tick */ + float mGravity; /**< Downward acceleration in pixels per game-tickČ*/ + int mRandomnes; /**< Ammount of random vector change*/ + float mBounce; /**< How much the particle bounces off when hitting the ground*/ + //follow-point particles + Particle *mTarget; /**< The particle that attracts this particle*/ + float mAcceleration; /**< Acceleration towards the target particle in pixels per game-tickČ*/ + float mInvDieDistance; /**< Distance in pixels from the target particle that causes the destruction of the particle*/ + float mMomentum; /**< How much speed the particle retains after each game tick*/ +}; + +extern Particle *particleEngine; + +#endif diff --git a/src/resources/image.cpp b/src/resources/image.cpp index 393c443c..31e38d6d 100644 --- a/src/resources/image.cpp +++ b/src/resources/image.cpp @@ -187,19 +187,22 @@ Image* Image::load(void *buffer, unsigned int bufferSize, bool hasAlpha = false; - // Figure out whether the image uses its alpha layer - for (int i = 0; i < tmpImage->w * tmpImage->h; ++i) + if (tmpImage->format->BitsPerPixel == 32) { - Uint8 r, g, b, a; - SDL_GetRGBA( - ((char*) tmpImage->pixels)[i * tmpImage->format->BitsPerPixel], - tmpImage->format, - &r, &g, &b, &a); - - if (a != 255) + // Figure out whether the image uses its alpha layer + for (int i = 0; i < tmpImage->w * tmpImage->h; ++i) { - hasAlpha = true; - break; + Uint8 r, g, b, a; + SDL_GetRGBA( + ((Uint32*) tmpImage->pixels)[i], + tmpImage->format, + &r, &g, &b, &a); + + if (a != 255) + { + hasAlpha = true; + break; + } } } |