1 files changed, 16 insertions, 0 deletions

diff --git a/source/Simulator/FluidSimulator.h b/source/Simulator/FluidSimulator.h
index fce18522f..672b740a2 100644
--- a/source/Simulator/FluidSimulator.h
+++ b/source/Simulator/FluidSimulator.h
@@ -22,6 +22,19 @@ enum Direction
 
 
 
+/** This is a base class for all fluid simulator data classes.
+Needed so that cChunk can properly delete instances of fluid simulator data, no matter what simulator it's using
+*/
+class cFluidSimulatorData
+{
+public:
+	virtual ~cFluidSimulatorData() {}
+} ;
+
+
+
+
+
 class cFluidSimulator :
 	public cSimulator
 {
@@ -36,6 +49,9 @@ public:
 	/// Gets the flowing direction. If a_Over is true also the block over the current block affects the direction (standard)
 	virtual Direction GetFlowingDirection(int a_X, int a_Y, int a_Z, bool a_Over = true);
 	
+	/// Creates a ChunkData object for the simulator to use. The simulator returns the correct object type.
+	virtual cFluidSimulatorData * CreateChunkData(void) { return NULL; }
+	
 	bool IsFluidBlock          (BLOCKTYPE a_BlockType) const { return (a_BlockType == m_FluidBlock); }
 	bool IsStationaryFluidBlock(BLOCKTYPE a_BlockType) const { return (a_BlockType == m_StationaryFluidBlock); }
 	bool IsAnyFluidBlock       (BLOCKTYPE a_BlockType) const { return ((a_BlockType == m_FluidBlock) || (a_BlockType == m_StationaryFluidBlock)); }