diff --git a/Module/BirdsModule/FlowMap.cs b/Module/BirdsModule/FlowMap.cs
index b814e4c..74737c8 100644
--- a/Module/BirdsModule/FlowMap.cs
+++ b/Module/BirdsModule/FlowMap.cs
@@ -35,7 +35,7 @@ namespace Flocking
 	public class FlowMap
 	{
 		private Scene m_scene;
-        private float[, ,] m_flowMap;
+        private double[, ,] m_flowMap;
         private uint regionX;
         private uint regionY;
         private uint regionZ;
@@ -48,7 +48,7 @@ namespace Flocking
             regionY = m_scene.RegionInfo.RegionSizeY;
             regionZ = (uint)maxHeight;
             regionBorder = borderSize;
-            m_flowMap = new float[regionX, regionY, regionZ];
+            m_flowMap = new double[regionX, regionY, regionZ];
 		}
 		
 		public int LengthX {
@@ -68,20 +68,20 @@ namespace Flocking
 			//fill in the boundaries
 			for( int x = 0; x < regionX; x++ ) {
 				for( int y = 0; y < regionY; y++ ) {
-					m_flowMap[x,y,0] = 100f;
-					m_flowMap[x,y, regionZ-1] = 100f;
+					m_flowMap[x,y,0] = 100;
+					m_flowMap[x,y, regionZ-1] = 100;
 				}
 			}
 			for( int x = 0; x < regionX; x++ ) {
 				for( int z = 0; z < regionZ; z++ ) {
-					m_flowMap[x,0,z] = 100f;
-					m_flowMap[x,regionY-1,z] = 100f;
+					m_flowMap[x,0,z] = 100;
+					m_flowMap[x,regionY-1,z] = 100;
 				}
 			}
 			for( int y = 0; y < regionY; y++ ) {
 				for( int z = 0; z < regionZ; z++ ) {
-					m_flowMap[0,y,z] = 100f;
-					m_flowMap[regionX-1,y,z] = 100f;
+					m_flowMap[0,y,z] = 100;
+					m_flowMap[regionX-1,y,z] = 100;
 				}
 			}
 			
@@ -91,7 +91,7 @@ namespace Flocking
 					int zMax = Convert.ToInt32(m_scene.GetGroundHeight( x, y ));
 					for( int z = 1; z < zMax; z++ ) {
 						if (x < regionX && y < regionY && z < zMax)
-							m_flowMap[x,y,z] = 100f;
+							m_flowMap[x,y,z] = 100;
 					}
 				}
 			}
@@ -119,7 +119,7 @@ namespace Flocking
 						for( int y = minY; y < maxY; y++ ) {
 							for( int z = minZ; z < maxZ; z++ ) {
 								if(x < maxX && y < maxY && z < maxX)
-									m_flowMap[x,y,z] = 100f;
+									m_flowMap[x,y,z] = 100;
 							}
 						}
 					}
@@ -193,7 +193,7 @@ namespace Flocking
             else if (x < 0 || y < 0 || z < 0)
             {
 				retVal = true;
-			} else if (m_flowMap[x,y,z] > 50f) {
+			} else if (m_flowMap[x,y,z] > 50) {
 				retVal = true;
 			}
 			return retVal;