Simplify wave function.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2546 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CWaterSurfaceSceneNode.cpp

@@ -67,7 +67,7 @@ void CWaterSurfaceSceneNode::OnAnimate(u32 timeMs)
 			const u32 vtxCnt = Mesh->getMeshBuffer(b)->getVertexCount();
 
 			for (u32 i=0; i<vtxCnt; ++i)
-				addWave(Mesh->getMeshBuffer(b)->getPosition(i),
+				Mesh->getMeshBuffer(b)->getPosition(i).Y = addWave(
 					OriginalMesh->getMeshBuffer(b)->getPosition(i),
 					time);
 		}// end for all mesh buffers
@@ -129,11 +129,11 @@ void CWaterSurfaceSceneNode::deserializeAttributes(io::IAttributes* in, io::SAtt
 }
 
 
-void CWaterSurfaceSceneNode::addWave(core::vector3df& dest, const core::vector3df &source, f32 time) const
+f32 CWaterSurfaceSceneNode::addWave(const core::vector3df &source, f32 time) const
 {
-	dest.Y = source.Y +
-	(sinf(((source.X/WaveLength) + time)) * WaveHeight) +
-	(cosf(((source.Z/WaveLength) + time)) * WaveHeight);
+	return source.Y +
+		(sinf(((source.X/WaveLength) + time)) * WaveHeight) +
+		(cosf(((source.Z/WaveLength) + time)) * WaveHeight);
 }
 
 } // end namespace scene

source/Irrlicht/CWaterSurfaceSceneNode.h

@@ -46,7 +46,7 @@ namespace scene
 
 	private:
 
-		inline void addWave(core::vector3df& dest, const core::vector3df &source, f32 time) const;
+		inline f32 addWave(const core::vector3df &source, f32 time) const;
 
 		f32 WaveLength;
 		f32 WaveSpeed;