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authorAndrei Karas <akaras@inbox.ru>2013-05-14 18:03:17 +0300
committerAndrei Karas <akaras@inbox.ru>2013-05-14 18:05:55 +0300
commitf03dfb3f143ee10329a10d093d6d31c1ab480007 (patch)
tree6ab0bfd9694e8bf6cb6e6cf45cf0fd065d18cf97 /src
parent750d3348b363716cf82136c337dac5da06bf5390 (diff)
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extend particle effects.
add new effect "subimage". allow for "animation" and "rotation" use subimages.
Diffstat (limited to 'src')
-rw-r--r--src/particleemitter.cpp78
-rw-r--r--src/particleemitter.h2
2 files changed, 70 insertions, 10 deletions
diff --git a/src/particleemitter.cpp b/src/particleemitter.cpp
index 5e7fcb2c6..a90853cdf 100644
--- a/src/particleemitter.cpp
+++ b/src/particleemitter.cpp
@@ -112,6 +112,34 @@ ParticleEmitter::ParticleEmitter(const XmlNodePtr emitterNode,
mParticleImage = resman->getImage(image);
}
}
+ else if (name == "subimage")
+ {
+ std::string image = XML::getProperty(
+ propertyNode, "value", "");
+ // Don't leak when multiple images are defined
+ if (!image.empty() && !mParticleImage)
+ {
+ if (!dyePalettes.empty())
+ Dye::instantiate(image, dyePalettes);
+
+ ResourceManager *const resman
+ = ResourceManager::getInstance();
+ Image *img = resman->getImage(image);
+ if (img)
+ {
+ mParticleImage = resman->getSubImage(img,
+ XML::getProperty(propertyNode, "x", 0),
+ XML::getProperty(propertyNode, "y", 0),
+ XML::getProperty(propertyNode, "width", 0),
+ XML::getProperty(propertyNode, "height", 0));
+ img->decRef();
+ }
+ else
+ {
+ mParticleImage = nullptr;
+ }
+ }
+ }
else if (name == "horizontal-angle")
{
mParticleAngleHorizontal =
@@ -210,11 +238,7 @@ ParticleEmitter::ParticleEmitter(const XmlNodePtr emitterNode,
}
else if (xmlNameEqual(propertyNode, "rotation"))
{
- ImageSet *const imageset = ResourceManager::getInstance()
- ->getImageSet(XML::getProperty(propertyNode, "imageset", ""),
- XML::getProperty(propertyNode, "width", 0),
- XML::getProperty(propertyNode, "height", 0));
-
+ ImageSet *const imageset = getImageSet(propertyNode);
if (!imageset)
{
logger->log1("Error: no valid imageset");
@@ -288,11 +312,7 @@ ParticleEmitter::ParticleEmitter(const XmlNodePtr emitterNode,
}
else if (xmlNameEqual(propertyNode, "animation"))
{
- ImageSet *const imageset = ResourceManager::getInstance()
- ->getImageSet(XML::getProperty(propertyNode, "imageset", ""),
- XML::getProperty(propertyNode, "width", 0),
- XML::getProperty(propertyNode, "height", 0));
-
+ ImageSet *const imageset = getImageSet(propertyNode);
if (!imageset)
{
logger->log1("Error: no valid imageset");
@@ -403,6 +423,44 @@ ParticleEmitter::ParticleEmitter(const ParticleEmitter &o)
*this = o;
}
+ImageSet *ParticleEmitter::getImageSet(XmlNodePtr node)
+{
+ ResourceManager *const resman = ResourceManager::getInstance();
+ ImageSet *imageset = nullptr;
+ const int subX = XML::getProperty(node, "subX", -1);
+ if (subX != -1)
+ {
+ Image *const img = resman->getImage(XML::getProperty(
+ node, "imageset", ""));
+ if (!img)
+ return nullptr;
+
+ Image *const img2 = resman->getSubImage(img, subX,
+ XML::getProperty(node, "subY", 0),
+ XML::getProperty(node, "subWidth", 0),
+ XML::getProperty(node, "subHeight", 0));
+ if (!img2)
+ {
+ img->decRef();
+ return nullptr;
+ }
+
+ imageset = resman->getSubImageSet(img2,
+ XML::getProperty(node, "width", 0),
+ XML::getProperty(node, "height", 0));
+ img2->decRef();
+ img->decRef();
+ }
+ else
+ {
+ imageset = resman->getImageSet(
+ XML::getProperty(node, "imageset", ""),
+ XML::getProperty(node, "width", 0),
+ XML::getProperty(node, "height", 0));
+ }
+ return imageset;
+}
+
ParticleEmitter & ParticleEmitter::operator=(const ParticleEmitter &o)
{
mParticlePosX = o.mParticlePosX;
diff --git a/src/particleemitter.h b/src/particleemitter.h
index 12b43ca53..2c4823ee9 100644
--- a/src/particleemitter.h
+++ b/src/particleemitter.h
@@ -84,6 +84,8 @@ class ParticleEmitter final
template <typename T> ParticleEmitterProp<T>
readParticleEmitterProp(XmlNodePtr propertyNode, T def);
+ ImageSet *getImageSet(XmlNodePtr node);
+
/**
* initial position of particles:
*/