diff --git a/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldGenerator.java b/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldGenerator.java
index 3869713..f4146ac 100644
--- a/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldGenerator.java
+++ b/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldGenerator.java
@@ -49,26 +49,27 @@ public class IslandWorldGenerator {
         // gets the bedrock.
         int bedrockHeight = bedrockGenerator.getBedrockHeight(worldX, worldZ);
 
-        // Sets the biome.
+        //Sets the biome.
         Biome currentBiome = biomeGenerator.GenerateBiome(chunkX, chunkZ, localX, localZ);
+        if (currentBiome == null) throw new IllegalStateException("Biome generated was null!");
         for (int y = 0; y < maxHeight; y++) {
             biomeGrid.setBiome(localX, y, localZ, currentBiome);
         }
 
-        // get height shader.
-        int height;
+        //get height shader.
+        int height = 0;
         try {
             height = heightShader.getAltitude(worldX, worldZ, currentBiome);
         } catch (InvalidAlgorithmParameterException e) {
             e.printStackTrace();
             height = maxHeight;
         }
+        if (height == 0) throw new IllegalStateException("Height generated was null!");
 
-        
         //set general shape
-        chunk.setRegion(localX, 0, localZ, localX, height, localZ, Material.STONE);
+        chunk.setRegion(localX, 0, localZ, localX + 1, height, localZ + 1, Material.STONE);
 
         //set bedrock last
-        chunk.setRegion(localX, 0, localZ, localX, bedrockHeight, localZ, Material.BEDROCK);
+        chunk.setRegion(localX, 0, localZ, localX + 1, bedrockHeight, localZ + 1, Material.BEDROCK);
     }
 }
\ No newline at end of file