85 lines
2.6 KiB
Java
85 lines
2.6 KiB
Java
package ru.betterend.world.features;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.BlockPos.MutableBlockPos;
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import net.minecraft.world.level.WorldGenLevel;
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import net.minecraft.world.level.levelgen.feature.FeaturePlaceContext;
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import net.minecraft.world.level.levelgen.feature.configurations.NoneFeatureConfiguration;
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import ru.bclib.api.TagAPI;
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import ru.bclib.util.BlocksHelper;
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import ru.bclib.util.MHelper;
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import ru.bclib.world.features.DefaultFeature;
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import java.util.Random;
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public abstract class ScatterFeature extends DefaultFeature {
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private static final MutableBlockPos POS = new MutableBlockPos();
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private final int radius;
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public ScatterFeature(int radius) {
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this.radius = radius;
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}
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public abstract boolean canGenerate(WorldGenLevel world, Random random, BlockPos center, BlockPos blockPos, float radius);
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public abstract void generate(WorldGenLevel world, Random random, BlockPos blockPos);
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protected BlockPos getCenterGround(WorldGenLevel world, BlockPos pos) {
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return getPosOnSurfaceWG(world, pos);
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}
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protected boolean canSpawn(WorldGenLevel world, BlockPos pos) {
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if (pos.getY() < 5) {
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return false;
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}
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else if (!world.getBlockState(pos.below()).is(TagAPI.END_GROUND)) {
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return false;
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}
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return true;
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}
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protected boolean getGroundPlant(WorldGenLevel world, MutableBlockPos pos) {
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int down = BlocksHelper.downRay(world, pos, 16);
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if (down > Math.abs(getYOffset() * 2)) {
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return false;
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}
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pos.setY(pos.getY() - down);
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return true;
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}
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protected int getYOffset() {
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return 5;
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}
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protected int getChance() {
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return 1;
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}
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@Override
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public boolean place(FeaturePlaceContext<NoneFeatureConfiguration> featureConfig) {
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final Random random = featureConfig.random();
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BlockPos center = featureConfig.origin();
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final WorldGenLevel world = featureConfig.level();
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center = getCenterGround(world, center);
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if (!canSpawn(world, center)) {
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return false;
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}
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float r = MHelper.randRange(radius * 0.5F, radius, random);
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int count = MHelper.floor(r * r * MHelper.randRange(1.5F, 3F, random));
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for (int i = 0; i < count; i++) {
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float pr = r * (float) Math.sqrt(random.nextFloat());
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float theta = random.nextFloat() * MHelper.PI2;
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float x = pr * (float) Math.cos(theta);
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float z = pr * (float) Math.sin(theta);
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POS.set(center.getX() + x, center.getY() + getYOffset(), center.getZ() + z);
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if (getGroundPlant(world, POS) && canGenerate(world, random, center, POS, r) && (getChance() < 2 || random.nextInt(getChance()) == 0)) {
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generate(world, random, POS);
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}
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}
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return true;
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}
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}
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