mirror of
https://github.com/PaperMC/Paper.git
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164 lines
6 KiB
Diff
164 lines
6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: vicisacat <victor.branchu@gmail.com>
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Date: Fri, 17 Nov 2023 20:21:47 +0100
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Subject: [PATCH] Add FluidState API
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diff --git a/src/main/java/io/papermc/paper/block/fluid/FluidData.java b/src/main/java/io/papermc/paper/block/fluid/FluidData.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..913acd58547d97cafc1466f6e2b3b4d22cf0b02d
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/block/fluid/FluidData.java
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@@ -0,0 +1,68 @@
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+package io.papermc.paper.block.fluid;
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+
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+import org.bukkit.Fluid;
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+import org.bukkit.Location;
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+import org.bukkit.util.Vector;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Range;
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+
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+/**
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+ * A representation of a fluid in a specific state of data.
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+ * This type is not linked to a specific location and hence mostly resembles a {@link org.bukkit.block.data.BlockData}.
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+ */
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+public interface FluidData extends Cloneable {
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+
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+ /**
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+ * Gets the fluid type of this fluid data.
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+ *
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+ * @return the fluid type
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+ */
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+ @NotNull Fluid getFluidType();
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+
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+ /**
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+ * Returns a copy of this FluidData.
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+ *
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+ * @return a copy of the fluid data
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+ */
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+ @NotNull FluidData clone();
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+
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+ /**
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+ * Computes the direction of the flow of the liquid at the given location as a vector.
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+ * <p>
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+ * This method requires the passed location's chunk to be loaded.
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+ * If said chunk is not loaded when this method is called, the chunk will first be loaded prior to the computation
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+ * which leads to a potentially slow sync chunk load.
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+ *
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+ * @param location - the location to check the liquid flow
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+ * @return the flow direction vector at the given location
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+ */
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+ @NotNull Vector computeFlowDirection(@NotNull Location location);
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+
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+ /**
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+ * Returns the level of liquid this fluid data holds.
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+ *
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+ * @return the amount as an integer, between 0 and 8
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+ */
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+ @Range(from = 0, to = 8)
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+ int getLevel();
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+
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+ /**
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+ * Computes the height of the fluid in the world.
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+ * <p>
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+ * This method requires the passed location's chunk to be loaded.
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+ * If said chunk is not loaded when this method is called, the chunk will first be loaded prior to the computation
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+ * which leads to a potentially slow sync chunk load.
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+ *
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+ * @param location the location at which to check the high of this fluid data.
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+ * @return the height as a float value
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+ */
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+ @Range(from = 0, to = 1)
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+ float computeHeight(@NotNull Location location);
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+
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+ /**
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+ * Returns whether this fluid is a source block
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+ *
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+ * @return true if the fluid is a source block, false otherwise
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+ */
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+ boolean isSource();
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+}
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diff --git a/src/main/java/io/papermc/paper/block/fluid/type/FallingFluidData.java b/src/main/java/io/papermc/paper/block/fluid/type/FallingFluidData.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..7bd9f28ba646f09080b5c29b9d3be5af676c912e
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/block/fluid/type/FallingFluidData.java
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@@ -0,0 +1,16 @@
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+package io.papermc.paper.block.fluid.type;
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+
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+import io.papermc.paper.block.fluid.FluidData;
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+
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+/**
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+ * A specific subtype of {@link FluidData} that is returned by the API for fluid data of potentially falling fluids.
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+ */
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+public interface FallingFluidData extends FluidData {
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+
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+ /**
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+ * Get if this liquid is falling.
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+ *
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+ * @return true if falling
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+ */
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+ boolean isFalling();
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+}
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diff --git a/src/main/java/io/papermc/paper/block/fluid/type/FlowingFluidData.java b/src/main/java/io/papermc/paper/block/fluid/type/FlowingFluidData.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..fbccdffe8d73e517204081c73bca9154f8c7d69f
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/block/fluid/type/FlowingFluidData.java
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@@ -0,0 +1,10 @@
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+package io.papermc.paper.block.fluid.type;
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+
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+import io.papermc.paper.block.fluid.FluidData;
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+
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+/**
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+ * A specific subtype of {@link FluidData} that is returned by the API for fluid data of potentially falling fluids.
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+ */
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+public interface FlowingFluidData extends FallingFluidData {
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+
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+}
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diff --git a/src/main/java/org/bukkit/RegionAccessor.java b/src/main/java/org/bukkit/RegionAccessor.java
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index 43dd6c59cceba12f27e6b265acc3ad97eea37abd..eb33e8e671972aa308ad75a7ce9aa9ac526f470f 100644
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--- a/src/main/java/org/bukkit/RegionAccessor.java
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+++ b/src/main/java/org/bukkit/RegionAccessor.java
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@@ -102,6 +102,41 @@ public interface RegionAccessor extends Keyed { // Paper
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@NotNull
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BlockState getBlockState(int x, int y, int z);
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+ // Paper start - FluidState API
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+ /**
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+ * Gets the {@link io.papermc.paper.block.fluid.FluidData} at the specified position.
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+ *
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+ * @param x The x-coordinate of the position
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+ * @param y The y-coordinate of the position
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+ * @param z The z-coordinate of the position
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+ * @return The {@link io.papermc.paper.block.fluid.FluidData} at the specified position
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+ */
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+ @NotNull
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+ io.papermc.paper.block.fluid.FluidData getFluidData(int x, int y, int z);
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+
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+ /**
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+ * Gets the {@link io.papermc.paper.block.fluid.FluidData} at the given position
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+ *
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+ * @param position The position of the fluid
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+ * @return The fluid data at the given position
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+ */
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+ @NotNull
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+ default io.papermc.paper.block.fluid.FluidData getFluidData(@NotNull io.papermc.paper.math.Position position) {
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+ return getFluidData(position.blockX(), position.blockY(), position.blockZ());
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+ }
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+
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+ /**
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+ * Gets the {@link io.papermc.paper.block.fluid.FluidData} at the given position
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+ *
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+ * @param location The location of the fluid
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+ * @return The fluid data at the given position
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+ */
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+ @NotNull
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+ default io.papermc.paper.block.fluid.FluidData getFluidData(@NotNull Location location) {
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+ return getFluidData(location.blockX(), location.blockY(), location.blockZ());
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+ }
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+ // Paper end
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+
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/**
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* Gets the {@link BlockData} at the given {@link Location}.
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*
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