Multiple generator fixes.

src/main/java/me/goodandevil/skyblock/generator/GeneratorManager.java

@@ -47,7 +47,7 @@ public class GeneratorManager {
                     Materials materials = Materials.fromString(materialList);
 
                     if (materials != null) {
-                        generatorMaterials.add(new GeneratorMaterial(materials, configLoad.getInt(
+                        generatorMaterials.add(new GeneratorMaterial(materials, configLoad.getDouble(
                                 "Generators." + generatorList + ".Materials." + materialList + ".Chance")));
                     }
                 }

src/main/java/me/goodandevil/skyblock/generator/GeneratorMaterial.java

@@ -7,7 +7,7 @@ public class GeneratorMaterial {
 	private Materials materials;
 	private double chance;
 
-	public GeneratorMaterial(Materials materials, int chance) {
+	public GeneratorMaterial(Materials materials, double chance) {
 		this.materials = materials;
 		this.chance = chance;
 	}

src/main/java/me/goodandevil/skyblock/listeners/Block.java

@@ -312,6 +312,10 @@ public class Block implements Listener {
             return;
         }
 
+
+        Material material = event.getBlock().getType();
+        if (material != Material.WATER && material != Material.LAVA) return;
+
         if (generatorManager != null && generatorManager.getGenerators().size() > 0) {
             Island island = islandManager.getIslandAtLocation(event.getBlock().getLocation());
             IslandWorld world = worldManager.getIslandWorld(event.getBlock().getWorld());