fix for turning new worlds into swiss cheese after removing mods

Author: DrPlantabyte

build.gradle

@@ -29,7 +29,7 @@ allprojects {
 }
 
 
-version = "1.0.2"
+version = "1.0.3"
 group= "cyano.orespawn"
 archivesBaseName = "OreSpawn_1.9.4"
 

src/main/java/cyano/orespawn/OreSpawn.java

@@ -47,7 +47,7 @@ public class OreSpawn
 	public static final String NAME ="Ore Spawn";
 	/** Version number, in Major.Minor.Build format. The minor number is increased whenever a change 
 	 * is made that has the potential to break compatibility with other mods that depend on this one. */
-	public static final String VERSION = "1.0.2";
+	public static final String VERSION = "1.0.3";
 
 	/** All ore-spawn files discovered in the ore-spawn folder */
 	public static final List<Path> oreSpawnConfigFiles = new LinkedList<>();

src/main/java/cyano/orespawn/worldgen/OreSpawnData.java

@@ -4,6 +4,7 @@
 import com.google.gson.JsonObject;
 import cyano.orespawn.OreSpawn;
 import net.minecraft.block.Block;
+import net.minecraft.init.Blocks;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.fml.common.FMLLog;
 import net.minecraftforge.fml.common.registry.GameData;
@@ -21,6 +22,8 @@ public class OreSpawnData {
 
 	public final Block ore;
 	public final int metaData;
+
+	public static final OreSpawnData EMPTY_PLACEHOLDER = new OreSpawnData(Blocks.STONE,0,1,127,0,1,1,Collections.EMPTY_LIST);
 
 	public OreSpawnData(Block oreBlock, int metaDataValue, int minHeight, int maxHeight, float spawnFrequency, int spawnQuantity, int spawnQuantityVariation, Collection<String> biomes){
 		this.spawnQuantity = spawnQuantity;
@@ -44,6 +47,7 @@ public static OreSpawnData parseOreSpawnData(JsonObject jsonEntry){
 			// block does not exist!
 			if(OreSpawn.ignoreNonExistant) {
 				FMLLog.warning("%s: ignoring orespawn data for %s because that block does not exist",OreSpawn.MODID,blockName);
+				return EMPTY_PLACEHOLDER;
 			}else{
 				throw new IllegalArgumentException(String.format("Ore block with ID %s does not exist!",blockName));
 			}