55 lines
2.5 KiB
Java
55 lines
2.5 KiB
Java
package net.minecraft.world.level.levelgen.structure.templatesystem;
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import com.mojang.serialization.Codec;
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import com.mojang.serialization.MapCodec;
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import com.mojang.serialization.codecs.RecordCodecBuilder;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.util.Mth;
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import net.minecraft.util.RandomSource;
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public class AxisAlignedLinearPosTest extends PosRuleTest {
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public static final MapCodec<AxisAlignedLinearPosTest> CODEC = RecordCodecBuilder.mapCodec(
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instance -> instance.group(
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Codec.FLOAT.fieldOf("min_chance").orElse(0.0F).forGetter(axisAlignedLinearPosTest -> axisAlignedLinearPosTest.minChance),
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Codec.FLOAT.fieldOf("max_chance").orElse(0.0F).forGetter(axisAlignedLinearPosTest -> axisAlignedLinearPosTest.maxChance),
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Codec.INT.fieldOf("min_dist").orElse(0).forGetter(axisAlignedLinearPosTest -> axisAlignedLinearPosTest.minDist),
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Codec.INT.fieldOf("max_dist").orElse(0).forGetter(axisAlignedLinearPosTest -> axisAlignedLinearPosTest.maxDist),
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Direction.Axis.CODEC.fieldOf("axis").orElse(Direction.Axis.Y).forGetter(axisAlignedLinearPosTest -> axisAlignedLinearPosTest.axis)
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)
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.apply(instance, AxisAlignedLinearPosTest::new)
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);
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private final float minChance;
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private final float maxChance;
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private final int minDist;
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private final int maxDist;
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private final Direction.Axis axis;
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public AxisAlignedLinearPosTest(float minChance, float maxChance, int minDist, int maxDist, Direction.Axis axis) {
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if (minDist >= maxDist) {
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throw new IllegalArgumentException("Invalid range: [" + minDist + "," + maxDist + "]");
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} else {
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this.minChance = minChance;
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this.maxChance = maxChance;
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this.minDist = minDist;
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this.maxDist = maxDist;
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this.axis = axis;
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}
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}
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@Override
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public boolean test(BlockPos localPos, BlockPos relativePos, BlockPos structurePos, RandomSource random) {
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Direction direction = Direction.get(Direction.AxisDirection.POSITIVE, this.axis);
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float f = Math.abs((relativePos.getX() - structurePos.getX()) * direction.getStepX());
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float g = Math.abs((relativePos.getY() - structurePos.getY()) * direction.getStepY());
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float h = Math.abs((relativePos.getZ() - structurePos.getZ()) * direction.getStepZ());
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int i = (int)(f + g + h);
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float j = random.nextFloat();
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return j <= Mth.clampedLerp(this.minChance, this.maxChance, Mth.inverseLerp((float)i, (float)this.minDist, (float)this.maxDist));
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}
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@Override
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protected PosRuleTestType<?> getType() {
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return PosRuleTestType.AXIS_ALIGNED_LINEAR_POS_TEST;
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}
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}
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