Add WorldGenMinablePlate

src/main/java/cofh/lib/world/WorldGenMinablePlate.java

@@ -0,0 +1,55 @@
+package cofh.lib.world;
+
+import static cofh.lib.world.WorldGenMinableCluster.generateBlock;
+
+import cofh.lib.util.WeightedRandomBlock;
+
+import java.util.List;
+import java.util.Random;
+
+import net.minecraft.world.World;
+import net.minecraft.world.gen.feature.WorldGenerator;
+
+public class WorldGenMinablePlate extends WorldGenerator {
+
+	private final List<WeightedRandomBlock> cluster;
+	private final WeightedRandomBlock[] genBlock;
+	private final int radius;
+	public byte height = 1;
+	public byte variation = 2;
+
+	public WorldGenMinablePlate(List<WeightedRandomBlock> resource, int clusterSize, List<WeightedRandomBlock> block) {
+
+		cluster = resource;
+		radius = clusterSize;
+		genBlock = block.toArray(new WeightedRandomBlock[block.size()]);
+	}
+
+	@Override
+	public boolean generate(World world, Random rand, int x, int y, int z) {
+
+		int size = radius;
+		if (radius > variation + 1)
+			size = rand.nextInt(radius - variation) + variation;
+		final int dist = size * size;
+		byte height = this.height;
+
+		boolean r = false;
+		for (int posX = x - size; posX <= x + size; ++posX) {
+			int xDist = posX - x;
+			xDist *= xDist;
+			for (int posZ = z - size; posZ <= z + size; ++posZ) {
+				int zSize = posZ - z;
+
+				if (zSize * zSize + xDist <= dist) {
+					for (int posY = y - height; posY <= y + height; ++posY) {
+						r |= generateBlock(world, posX, posY, posZ, genBlock, cluster);
+					}
+				}
+			}
+		}
+
+		return r;
+	}
+
+}