com.yungnickyoung.minecraft.yungsapi.world.util.SurfaceHelper Maven / Gradle / Ivy

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A common API for YUNG's Minecraft mods

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package com.yungnickyoung.minecraft.yungsapi.world.util;

import net.minecraft.class_2246;
import net.minecraft.class_2265;
import net.minecraft.class_2338;
import net.minecraft.class_2350;
import net.minecraft.class_2680;
import net.minecraft.class_2791;

public class SurfaceHelper {
    private SurfaceHelper() {} // Private constructor prevents instantiation

    /**
     * Returns the y-coordinate of the topmost non-air block at the given column position in the world.
     * Returns 1 if somehow no non-air block is found.
     */
    public static int getSurfaceHeight(class_2791 chunk, class_2265 pos) {
        int maxY = chunk.method_31600() - 1;
        class_2338.class_2339 blockPos = new class_2338.class_2339(pos.comp_638(), maxY, pos.comp_639());

        // Edge case: blocks go all the way up to build height
        if (chunk.method_8320(blockPos) != class_2246.field_10124.method_9564())
            return maxY;

        for (int y = maxY; y >= 0; y--) {
            class_2680 blockState = chunk.method_8320(blockPos);
            if (blockState != class_2246.field_10124.method_9564())
                return y;
            blockPos.method_10098(class_2350.field_11033);
        }

        return 1; // Surface somehow not found
    }
}