Clamp fix for new method

src/engine/InterestManagement/Terrain.java

@@ -21,6 +21,8 @@ import static java.lang.Math.PI;
 public class Terrain {
     public static final HashMap<Integer, short[][]> _heightmap_pixel_cache = new HashMap<>();
     public short[][] terrain_pixel_data;
+
+    public Vector2f image_size = new Vector2f();
     public Vector2f terrain_size = new Vector2f();
     public Vector2f cell_size = new Vector2f();
     public Vector2f cell_count = new Vector2f();
@@ -44,6 +46,7 @@ public class Terrain {
         // Load pixel data for this terrain from cache
 
         this.terrain_pixel_data = Terrain._heightmap_pixel_cache.get(heightmap);
+        this.image_size.set(this.terrain_pixel_data.length, this.terrain_pixel_data[0].length);
 
         if (terrain_pixel_data == null)
             Logger.error("Pixel map empty for zone: " + this.zone.getObjectUUID() + ":" + this.zone.zoneName);
@@ -53,8 +56,8 @@ public class Terrain {
         this.terrain_size.x = this.zone.major_radius * 2;
         this.terrain_size.y = this.zone.minor_radius * 2;
 
-        this.cell_count.x = this.terrain_pixel_data.length - 1;
+        this.cell_count.x = this.image_size.x;
-        this.cell_count.y = this.terrain_pixel_data[0].length - 1;
+        this.cell_count.y = this.image_size.y; // Bug in exe
 
         this.cell_size.x = terrain_size.x / this.cell_count.x;
         this.cell_size.y = terrain_size.y / this.cell_count.y;
@@ -84,7 +87,7 @@ public class Terrain {
 
         // Scale coefficient for this terrain
 
-        this.terrain_scale = this.zone.template.terrain_max_y / 255f;
+        this.terrain_scale = this.zone.template.terrain_max_y / 256;
     }
 
     public static Zone getNextZoneWithTerrain(Zone zone) {
@@ -155,14 +158,14 @@ public class Terrain {
 
     public Vector2f getTerrainCell(Vector2f terrain_loc) {
 
-        // Calculate terrain cell with offset
+        // Calculate terrain cell with offset.  Bug mirrors the exe
 
-        Vector2f terrain_cell = new Vector2f(terrain_loc.x / this.cell_size.x, terrain_loc.y / this.cell_size.y);
+        Vector2f terrain_cell = new Vector2f(terrain_loc.x / this.cell_size.x, terrain_loc.y / this.cell_size.x);
 
         // Clamp values when standing directly on pole
 
-        terrain_cell.x = Math.max(0, Math.min(this.cell_count.x - 1, terrain_cell.x));
+        terrain_cell.x = Math.max(0, Math.min(this.cell_count.x - 2, terrain_cell.x));
-        terrain_cell.y = Math.max(0, Math.min(this.cell_count.y - 1, terrain_cell.y));
+        terrain_cell.y = Math.max(0, Math.min(this.cell_count.y - 2, terrain_cell.y));
 
         return terrain_cell;
     }