Pixel values are shorts for memory

src/engine/InterestManagement/Terrain.java

@@ -172,6 +172,8 @@ public class Terrain {
         if (this.zone.guild_zone)
             return 5.0f;
 
+        // Determine terrain and offset from top left vertex
+
         Vector2f terrain_cell = getTerrainCell(terrain_loc);
 
         int pixel_x = (int) Math.floor(terrain_cell.x);
@@ -181,10 +183,10 @@ public class Terrain {
 
         // 4 surrounding vertices from the pixel array.
 
-        float top_left_pixel = terrain_pixel_data[pixel_x][pixel_y];
+        short top_left_pixel = terrain_pixel_data[pixel_x][pixel_y];
-        float top_right_pixel = terrain_pixel_data[pixel_x + 1][pixel_y];
+        short top_right_pixel = terrain_pixel_data[pixel_x + 1][pixel_y];
-        float bottom_left_pixel = terrain_pixel_data[pixel_x][pixel_y + 1];
+        short bottom_left_pixel = terrain_pixel_data[pixel_x][pixel_y + 1];
-        float bottom_right_pixel = terrain_pixel_data[pixel_x + 1][pixel_y + 1];
+        short bottom_right_pixel = terrain_pixel_data[pixel_x + 1][pixel_y + 1];
 
         // Interpolate between the 4 vertices