54 lines
1.5 KiB
Java
54 lines
1.5 KiB
Java
package net.minecraft.network.protocol.game;
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import net.minecraft.world.phys.Vec3;
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import org.jetbrains.annotations.VisibleForTesting;
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public class VecDeltaCodec {
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private static final double TRUNCATION_STEPS = 4096.0;
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private Vec3 base = Vec3.ZERO;
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@VisibleForTesting
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static long encode(double p_238018_) {
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return Math.round(p_238018_ * 4096.0);
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}
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@VisibleForTesting
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static double decode(long p_238020_) {
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return p_238020_ / 4096.0;
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}
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public Vec3 decode(long p_238022_, long p_238023_, long p_238024_) {
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if (p_238022_ == 0L && p_238023_ == 0L && p_238024_ == 0L) {
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return this.base;
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} else {
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double d0 = p_238022_ == 0L ? this.base.x : decode(encode(this.base.x) + p_238022_);
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double d1 = p_238023_ == 0L ? this.base.y : decode(encode(this.base.y) + p_238023_);
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double d2 = p_238024_ == 0L ? this.base.z : decode(encode(this.base.z) + p_238024_);
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return new Vec3(d0, d1, d2);
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}
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}
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public long encodeX(Vec3 p_238026_) {
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return encode(p_238026_.x) - encode(this.base.x);
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}
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public long encodeY(Vec3 p_238028_) {
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return encode(p_238028_.y) - encode(this.base.y);
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}
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public long encodeZ(Vec3 p_238030_) {
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return encode(p_238030_.z) - encode(this.base.z);
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}
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public Vec3 delta(Vec3 p_238032_) {
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return p_238032_.subtract(this.base);
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}
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public void setBase(Vec3 p_238034_) {
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this.base = p_238034_;
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}
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public Vec3 getBase() {
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return this.base;
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}
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} |