Added AnimationFinished command to Sprite for when the animation starts over.

Docs/Changelog_sm5.txt

@@ -4,6 +4,11 @@ The StepMania 5 Changelog covers all post-sm-ssc changes. For a list of changes
 from StepMania 4 alpha 5 to sm-ssc v1.2.5, see Changelog_sm-ssc.txt.
 ________________________________________________________________________________
 
+2015/07/15
+----------
+* [Sprite] Sprite now executes the AnimationFinished command when it reaches
+  the end of its animation and starts over. [kyzentun]
+
 2015/07/11
 ----------
 * [ScreenMapControllers] If the AutoDismissWarningSecs metric is less than

src/Sprite.cpp

@@ -375,6 +375,10 @@ void Sprite::UpdateAnimationState()
 			// increment frame and reset the counter
 			m_fSecsIntoState -= m_States[m_iCurState].fDelay;		// leave the left over time for the next frame
 			m_iCurState = (m_iCurState+1) % m_States.size();
+			if(m_iCurState == 0)
+			{
+				PlayCommand("AnimationFinished");
+			}
 		}
 	}
 }