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package net.minecraft.world.level;
import it.unimi.dsi.fastutil.objects.ObjectLinkedOpenHashSet;
import java.util.Optional;
import java.util.Set;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Stream;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.util.Mth;
import net.minecraft.world.level.block.entity.BlockEntity;
import net.minecraft.world.level.block.entity.BlockEntityType;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.material.FluidState;
import net.minecraft.world.phys.AABB;
import net.minecraft.world.phys.BlockHitResult;
import net.minecraft.world.phys.Vec3;
import net.minecraft.world.phys.shapes.VoxelShape;
public interface BlockGetter extends LevelHeightAccessor {
int MAX_BLOCK_ITERATIONS_ALONG_TRAVEL = 16;
@Nullable
BlockEntity getBlockEntity(BlockPos p_45570_);
default <T extends BlockEntity> Optional<T> getBlockEntity(BlockPos p_151367_, BlockEntityType<T> p_151368_) {
BlockEntity blockentity = this.getBlockEntity(p_151367_);
return blockentity != null && blockentity.getType() == p_151368_ ? Optional.of((T)blockentity) : Optional.empty();
}
BlockState getBlockState(BlockPos p_45571_);
FluidState getFluidState(BlockPos p_45569_);
default int getLightEmission(BlockPos p_45572_) {
return this.getBlockState(p_45572_).getLightEmission();
}
default Stream<BlockState> getBlockStates(AABB p_45557_) {
return BlockPos.betweenClosedStream(p_45557_).map(this::getBlockState);
}
default BlockHitResult isBlockInLine(ClipBlockStateContext p_151354_) {
return traverseBlocks(
p_151354_.getFrom(),
p_151354_.getTo(),
p_151354_,
(p_275154_, p_275155_) -> {
BlockState blockstate = this.getBlockState(p_275155_);
Vec3 vec3 = p_275154_.getFrom().subtract(p_275154_.getTo());
return p_275154_.isTargetBlock().test(blockstate)
? new BlockHitResult(
p_275154_.getTo(),
Direction.getApproximateNearest(vec3.x, vec3.y, vec3.z),
BlockPos.containing(p_275154_.getTo()),
false
)
: null;
},
p_275156_ -> {
Vec3 vec3 = p_275156_.getFrom().subtract(p_275156_.getTo());
return BlockHitResult.miss(
p_275156_.getTo(), Direction.getApproximateNearest(vec3.x, vec3.y, vec3.z), BlockPos.containing(p_275156_.getTo())
);
}
);
}
default BlockHitResult clip(ClipContext p_45548_) {
return traverseBlocks(
p_45548_.getFrom(),
p_45548_.getTo(),
p_45548_,
(p_151359_, p_151360_) -> {
BlockState blockstate = this.getBlockState(p_151360_);
FluidState fluidstate = this.getFluidState(p_151360_);
Vec3 vec3 = p_151359_.getFrom();
Vec3 vec31 = p_151359_.getTo();
VoxelShape voxelshape = p_151359_.getBlockShape(blockstate, this, p_151360_);
BlockHitResult blockhitresult = this.clipWithInteractionOverride(vec3, vec31, p_151360_, voxelshape, blockstate);
VoxelShape voxelshape1 = p_151359_.getFluidShape(fluidstate, this, p_151360_);
BlockHitResult blockhitresult1 = voxelshape1.clip(vec3, vec31, p_151360_);
double d0 = blockhitresult == null ? Double.MAX_VALUE : p_151359_.getFrom().distanceToSqr(blockhitresult.getLocation());
double d1 = blockhitresult1 == null ? Double.MAX_VALUE : p_151359_.getFrom().distanceToSqr(blockhitresult1.getLocation());
return d0 <= d1 ? blockhitresult : blockhitresult1;
},
p_275153_ -> {
Vec3 vec3 = p_275153_.getFrom().subtract(p_275153_.getTo());
return BlockHitResult.miss(
p_275153_.getTo(), Direction.getApproximateNearest(vec3.x, vec3.y, vec3.z), BlockPos.containing(p_275153_.getTo())
);
}
);
}
@Nullable
default BlockHitResult clipWithInteractionOverride(Vec3 p_45559_, Vec3 p_45560_, BlockPos p_45561_, VoxelShape p_45562_, BlockState p_45563_) {
BlockHitResult blockhitresult = p_45562_.clip(p_45559_, p_45560_, p_45561_);
if (blockhitresult != null) {
BlockHitResult blockhitresult1 = p_45563_.getInteractionShape(this, p_45561_).clip(p_45559_, p_45560_, p_45561_);
if (blockhitresult1 != null && blockhitresult1.getLocation().subtract(p_45559_).lengthSqr() < blockhitresult.getLocation().subtract(p_45559_).lengthSqr()) {
return blockhitresult.withDirection(blockhitresult1.getDirection());
}
}
return blockhitresult;
}
default double getBlockFloorHeight(VoxelShape p_45565_, Supplier<VoxelShape> p_45566_) {
if (!p_45565_.isEmpty()) {
return p_45565_.max(Direction.Axis.Y);
} else {
double d0 = p_45566_.get().max(Direction.Axis.Y);
return d0 >= 1.0 ? d0 - 1.0 : Double.NEGATIVE_INFINITY;
}
}
default double getBlockFloorHeight(BlockPos p_45574_) {
return this.getBlockFloorHeight(this.getBlockState(p_45574_).getCollisionShape(this, p_45574_), () -> {
BlockPos blockpos = p_45574_.below();
return this.getBlockState(blockpos).getCollisionShape(this, blockpos);
});
}
static <T, C> T traverseBlocks(Vec3 p_151362_, Vec3 p_151363_, C p_151364_, BiFunction<C, BlockPos, T> p_151365_, Function<C, T> p_151366_) {
if (p_151362_.equals(p_151363_)) {
return p_151366_.apply(p_151364_);
} else {
double d0 = Mth.lerp(-1.0E-7, p_151363_.x, p_151362_.x);
double d1 = Mth.lerp(-1.0E-7, p_151363_.y, p_151362_.y);
double d2 = Mth.lerp(-1.0E-7, p_151363_.z, p_151362_.z);
double d3 = Mth.lerp(-1.0E-7, p_151362_.x, p_151363_.x);
double d4 = Mth.lerp(-1.0E-7, p_151362_.y, p_151363_.y);
double d5 = Mth.lerp(-1.0E-7, p_151362_.z, p_151363_.z);
int i = Mth.floor(d3);
int j = Mth.floor(d4);
int k = Mth.floor(d5);
BlockPos.MutableBlockPos blockpos$mutableblockpos = new BlockPos.MutableBlockPos(i, j, k);
T t = p_151365_.apply(p_151364_, blockpos$mutableblockpos);
if (t != null) {
return t;
} else {
double d6 = d0 - d3;
double d7 = d1 - d4;
double d8 = d2 - d5;
int l = Mth.sign(d6);
int i1 = Mth.sign(d7);
int j1 = Mth.sign(d8);
double d9 = l == 0 ? Double.MAX_VALUE : (double)l / d6;
double d10 = i1 == 0 ? Double.MAX_VALUE : (double)i1 / d7;
double d11 = j1 == 0 ? Double.MAX_VALUE : (double)j1 / d8;
double d12 = d9 * (l > 0 ? 1.0 - Mth.frac(d3) : Mth.frac(d3));
double d13 = d10 * (i1 > 0 ? 1.0 - Mth.frac(d4) : Mth.frac(d4));
double d14 = d11 * (j1 > 0 ? 1.0 - Mth.frac(d5) : Mth.frac(d5));
while (d12 <= 1.0 || d13 <= 1.0 || d14 <= 1.0) {
if (d12 < d13) {
if (d12 < d14) {
i += l;
d12 += d9;
} else {
k += j1;
d14 += d11;
}
} else if (d13 < d14) {
j += i1;
d13 += d10;
} else {
k += j1;
d14 += d11;
}
T t1 = p_151365_.apply(p_151364_, blockpos$mutableblockpos.set(i, j, k));
if (t1 != null) {
return t1;
}
}
return p_151366_.apply(p_151364_);
}
}
}
static Iterable<BlockPos> boxTraverseBlocks(Vec3 p_365175_, Vec3 p_365388_, AABB p_364385_) {
Vec3 vec3 = p_365388_.subtract(p_365175_);
Iterable<BlockPos> iterable = BlockPos.betweenClosed(p_364385_);
if (vec3.lengthSqr() < (double)Mth.square(0.99999F)) {
return iterable;
} else {
Set<BlockPos> set = new ObjectLinkedOpenHashSet<>();
Vec3 vec31 = p_364385_.getMinPosition();
Vec3 vec32 = vec31.subtract(vec3);
addCollisionsAlongTravel(set, vec32, vec31, p_364385_);
for (BlockPos blockpos : iterable) {
set.add(blockpos.immutable());
}
return set;
}
}
private static void addCollisionsAlongTravel(Set<BlockPos> p_369132_, Vec3 p_362149_, Vec3 p_368644_, AABB p_364725_) {
Vec3 vec3 = p_368644_.subtract(p_362149_);
int i = Mth.floor(p_362149_.x);
int j = Mth.floor(p_362149_.y);
int k = Mth.floor(p_362149_.z);
int l = Mth.sign(vec3.x);
int i1 = Mth.sign(vec3.y);
int j1 = Mth.sign(vec3.z);
double d0 = l == 0 ? Double.MAX_VALUE : (double)l / vec3.x;
double d1 = i1 == 0 ? Double.MAX_VALUE : (double)i1 / vec3.y;
double d2 = j1 == 0 ? Double.MAX_VALUE : (double)j1 / vec3.z;
double d3 = d0 * (l > 0 ? 1.0 - Mth.frac(p_362149_.x) : Mth.frac(p_362149_.x));
double d4 = d1 * (i1 > 0 ? 1.0 - Mth.frac(p_362149_.y) : Mth.frac(p_362149_.y));
double d5 = d2 * (j1 > 0 ? 1.0 - Mth.frac(p_362149_.z) : Mth.frac(p_362149_.z));
int k1 = 0;
while (d3 <= 1.0 || d4 <= 1.0 || d5 <= 1.0) {
if (d3 < d4) {
if (d3 < d5) {
i += l;
d3 += d0;
} else {
k += j1;
d5 += d2;
}
} else if (d4 < d5) {
j += i1;
d4 += d1;
} else {
k += j1;
d5 += d2;
}
if (k1++ > 16) {
break;
}
Optional<Vec3> optional = AABB.clip((double)i, (double)j, (double)k, (double)(i + 1), (double)(j + 1), (double)(k + 1), p_362149_, p_368644_);
if (!optional.isEmpty()) {
Vec3 vec31 = optional.get();
double d6 = Mth.clamp(vec31.x, (double)i + 1.0E-5F, (double)i + 1.0 - 1.0E-5F);
double d7 = Mth.clamp(vec31.y, (double)j + 1.0E-5F, (double)j + 1.0 - 1.0E-5F);
double d8 = Mth.clamp(vec31.z, (double)k + 1.0E-5F, (double)k + 1.0 - 1.0E-5F);
int l1 = Mth.floor(d6 + p_364725_.getXsize());
int i2 = Mth.floor(d7 + p_364725_.getYsize());
int j2 = Mth.floor(d8 + p_364725_.getZsize());
for (int k2 = i; k2 <= l1; k2++) {
for (int l2 = j; l2 <= i2; l2++) {
for (int i3 = k; i3 <= j2; i3++) {
p_369132_.add(new BlockPos(k2, l2, i3));
}
}
}
}
}
}
} |