MagicBees/src/main/java/magicbees/world/feature/FeatureOreVein.java

package magicbees.world.feature;

import java.util.Random;

import magicbees.main.utils.BlockUtil;

import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
import net.minecraft.world.World;

public class FeatureOreVein {

    public static final FeatureOreVein redstoneGen;
    public static final FeatureOreVein netherQuartzGen;
    public static final FeatureOreVein glowstoneGen;
    public static final FeatureOreVein endStoneGen;

    static {
        redstoneGen = new FeatureOreVein(Blocks.redstone_ore, Blocks.stone);
        netherQuartzGen = new FeatureOreVein(Blocks.quartz_ore, Blocks.netherrack);
        glowstoneGen = new FeatureOreVein(Blocks.glowstone, Blocks.stone);
        endStoneGen = new FeatureOreVein(Blocks.end_stone, Blocks.stone);
    }

    private final Block veinBlock;
    private final int veinBlockMeta;
    private final Block replacesBlock;

    public FeatureOreVein(Block block, Block replacesBlock) {
        this(block, 0, replacesBlock);
    }

    public FeatureOreVein(Block block, int meta, Block replacesBlock) {
        this.veinBlock = block;
        this.veinBlockMeta = meta;
        this.replacesBlock = replacesBlock;
    }

    public void generateVein(World world, Random random, int startX, int startY, int startZ, int maxSpawnCount) {
        int currentX = startX;
        int currentY = startY;
        int currentZ = startZ;
        int spawnAttempts = 0;
        int spawnCount = 0;

        while (spawnCount < maxSpawnCount && spawnAttempts < maxSpawnCount * 2) {
            ++spawnAttempts;

            if (!world.isAirBlock(currentX, currentY, currentZ)
                    && BlockUtil.canBlockReplaceAt(world, currentX, currentY, currentZ, replacesBlock)) {
                world.setBlock(currentX, currentY, currentZ, this.veinBlock, this.veinBlockMeta, 2);
                ++spawnCount;
            }

            switch (random.nextInt(6)) {
                case 0:
                    ++currentY;
                    break;
                case 1:
                    --currentY;
                    break;
                case 2:
                    ++currentZ;
                    break;
                case 3:
                    --currentZ;
                    break;
                case 4:
                    ++currentX;
                    break;
                case 5:
                    --currentX;
                    break;
            }
        }
    }
}