Use the native TMX tile animation format

Rewrote the tile animation loading code based on XML tags, replacing
the code that loaded tile animations from tile properties.

Also made a number of code simplifications and optimizations:

* Replaced a number of pointer members with value members.
* Pass around Animation and TileAnimation by value, using std::move to
  avoid allocating copies.
* push -> emplace
* push_front -> emplace_front
* push_back -> emplace_back
* Use range-based for loops
* Use std::vector instead of std::list for storing affected tiles
  (less fragmentation)
* Avoid string copies and allocations while parsing CSV layer data.
* Replaced xmlNodeGetContent with directly accessing 'content'.

1 files changed, 2 insertions, 4 deletions

diff --git a/src/particleemitter.cpp b/src/particleemitter.cpp
index 81258d80..196a43d2 100644
--- a/src/particleemitter.cpp
+++ b/src/particleemitter.cpp
@@ -464,13 +464,11 @@ std::list<Particle *> ParticleEmitter::createParticles(int tick)
         }
         else if (mParticleRotation.getLength() > 0)
         {
-            auto *newAnimation = new Animation(mParticleRotation);
-            newParticle = new RotationalParticle(mMap, newAnimation);
+            newParticle = new RotationalParticle(mMap, mParticleRotation);
         }
         else if (mParticleAnimation.getLength() > 0)
         {
-            auto *newAnimation = new Animation(mParticleAnimation);
-            newParticle = new AnimationParticle(mMap, newAnimation);
+            newParticle = new AnimationParticle(mMap, mParticleAnimation);
         }
         else
         {