update bullet so it actually works

Moved the addSourceDirectory for physics/Bullet into the Engine/Source/CMakeLists.txt file that way it can actually appear where we expect it to in the solution explorer.

Engine/lib/bullet/data/terrain.py

@@ -0,0 +1,58 @@
+import math
+
+NUM_VERTS_X = 30
+NUM_VERTS_Y = 30
+totalVerts = NUM_VERTS_X * NUM_VERTS_Y
+totalTriangles = 2 * (NUM_VERTS_X - 1) * (NUM_VERTS_Y - 1)
+offset = -50.0
+TRIANGLE_SIZE = 1.
+waveheight = 0.1
+gGroundVertices = [None] * totalVerts * 3
+gGroundIndices = [None] * totalTriangles * 3
+
+i = 0
+
+for i in range(NUM_VERTS_X):
+  for j in range(NUM_VERTS_Y):
+    gGroundVertices[(i + j * NUM_VERTS_X) * 3 + 0] = (i - NUM_VERTS_X * 0.5) * TRIANGLE_SIZE
+    gGroundVertices[(i + j * NUM_VERTS_X) * 3 + 1] = (j - NUM_VERTS_Y * 0.5) * TRIANGLE_SIZE
+    gGroundVertices[(i + j * NUM_VERTS_X) * 3 +
+                    2] = waveheight * math.sin(float(i)) * math.cos(float(j) + offset)
+
+index = 0
+for i in range(NUM_VERTS_X - 1):
+  for j in range(NUM_VERTS_Y - 1):
+    gGroundIndices[index] = 1 + j * NUM_VERTS_X + i
+    index += 1
+    gGroundIndices[index] = 1 + j * NUM_VERTS_X + i + 1
+    index += 1
+    gGroundIndices[index] = 1 + (j + 1) * NUM_VERTS_X + i + 1
+    index += 1
+    gGroundIndices[index] = 1 + j * NUM_VERTS_X + i
+    index += 1
+    gGroundIndices[index] = 1 + (j + 1) * NUM_VERTS_X + i + 1
+    index += 1
+    gGroundIndices[index] = 1 + (j + 1) * NUM_VERTS_X + i
+    index += 1
+
+#print(gGroundVertices)
+#print(gGroundIndices)
+
+print("o Terrain")
+
+for i in range(totalVerts):
+  print("v "),
+  print(gGroundVertices[i * 3 + 0]),
+  print(" "),
+  print(gGroundVertices[i * 3 + 1]),
+  print(" "),
+  print(gGroundVertices[i * 3 + 2])
+
+for i in range(totalTriangles):
+  print("f "),
+  print(gGroundIndices[i * 3 + 0]),
+  print(" "),
+  print(gGroundIndices[i * 3 + 1]),
+  print(" "),
+  print(gGroundIndices[i * 3 + 2]),
+  print(" ")