aboutsummaryrefslogtreecommitdiffhomepage
path: root/patches/server/0763-Friction-API.patch
blob: 0262ffef8442cda55c765b07a043f5a6d09011d1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Noah van der Aa <ndvdaa@gmail.com>
Date: Wed, 15 Sep 2021 20:44:22 +0200
Subject: [PATCH] Friction API


diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 0e2b5e1dbdf671da0a4edfa77f7fb759732674cb..076c7828fdfa53c7453406beb937700e12b137d2 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -296,6 +296,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
     public boolean bukkitPickUpLoot;
     public org.bukkit.craftbukkit.entity.CraftLivingEntity getBukkitLivingEntity() { return (org.bukkit.craftbukkit.entity.CraftLivingEntity) super.getBukkitEntity(); } // Paper
     public boolean silentDeath = false; // Paper - mark entity as dying silently for cancellable death event
+    public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper - Friction API
 
     @Override
     public float getBukkitYaw() {
@@ -722,7 +723,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
     }
 
     public boolean shouldDiscardFriction() {
-        return this.discardFriction;
+        return !this.frictionState.toBooleanOrElse(!this.discardFriction); // Paper - Friction API
     }
 
     public void setDiscardFriction(boolean noDrag) {
@@ -796,6 +797,11 @@ public abstract class LivingEntity extends Entity implements Attackable {
 
     @Override
     public void addAdditionalSaveData(CompoundTag nbt) {
+        // Paper start - Friction API
+        if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
+            nbt.putString("Paper.FrictionState", this.frictionState.toString());
+        }
+        // Paper end - Friction API
         nbt.putFloat("Health", this.getHealth());
         nbt.putShort("HurtTime", (short) this.hurtTime);
         nbt.putInt("HurtByTimestamp", this.lastHurtByMobTimestamp);
@@ -839,6 +845,16 @@ public abstract class LivingEntity extends Entity implements Attackable {
         }
         this.internalSetAbsorptionAmount(absorptionAmount);
         // Paper end - Check for NaN
+        // Paper start - Friction API
+        if (nbt.contains("Paper.FrictionState")) {
+            String fs = nbt.getString("Paper.FrictionState");
+            try {
+                frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
+            } catch (Exception ignored) {
+                LOGGER.error("Unknown friction state " + fs + " for " + this);
+            }
+        }
+        // Paper end - Friction API
         if (nbt.contains("attributes", 9) && this.level() != null && !this.level().isClientSide) {
             this.getAttributes().load(nbt.getList("attributes", 10));
         }
diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
index d555fd0b200c012f30ed0c0ec09a37b25a737b76..7a6d51020d9c6be33b4c34c0d608559589d5b390 100644
--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
@@ -63,6 +63,7 @@ public class ItemEntity extends Entity implements TraceableEntity {
     private int lastTick = MinecraftServer.currentTick - 1; // CraftBukkit
     public boolean canMobPickup = true; // Paper - Item#canEntityPickup
     private int despawnRate = -1; // Paper - Alternative item-despawn-rate
+    public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper - Friction API
 
     public ItemEntity(EntityType<? extends ItemEntity> type, Level world) {
         super(type, world);
@@ -186,7 +187,11 @@ public class ItemEntity extends Entity implements TraceableEntity {
                 this.applyEffectsFromBlocks();
                 float f = 0.98F;
 
-                if (this.onGround()) {
+                // Paper start - Friction API
+                if (frictionState == net.kyori.adventure.util.TriState.FALSE) {
+                    f = 1F;
+                } else if (this.onGround()) {
+                    // Paper end - Friction API
                     f = this.level().getBlockState(this.getBlockPosBelowThatAffectsMyMovement()).getBlock().getFriction() * 0.98F;
                 }
 
@@ -409,6 +414,11 @@ public class ItemEntity extends Entity implements TraceableEntity {
 
     @Override
     public void addAdditionalSaveData(CompoundTag nbt) {
+        // Paper start - Friction API
+        if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
+            nbt.putString("Paper.FrictionState", this.frictionState.toString());
+        }
+        // Paper end - Friction API
         nbt.putShort("Health", (short) this.health);
         nbt.putShort("Age", (short) this.age);
         nbt.putShort("PickupDelay", (short) this.pickupDelay);
@@ -451,6 +461,17 @@ public class ItemEntity extends Entity implements TraceableEntity {
             this.setItem(ItemStack.EMPTY);
         }
 
+        // Paper start - Friction API
+        if (nbt.contains("Paper.FrictionState")) {
+            String fs = nbt.getString("Paper.FrictionState");
+            try {
+                frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
+            } catch (Exception ignored) {
+                com.mojang.logging.LogUtils.getLogger().error("Unknown friction state " + fs + " for " + this);
+            }
+        }
+        // Paper end - Friction API
+
         if (this.getItem().isEmpty()) {
             this.discard(null); // CraftBukkit - add Bukkit remove cause
         }
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java b/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java
index d8fcd6d1edec1f31a861fab4b86cbeb15ddc799d..d277f56fef882313d6d21f636fafae2f26630ad7 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java
@@ -93,6 +93,7 @@ public abstract class AbstractMinecart extends VehicleEntity {
     private double flyingZ = 0.95;
     public double maxSpeed = 0.4D;
     // CraftBukkit end
+    public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper - Friction API
 
     protected AbstractMinecart(EntityType<?> type, Level world) {
         super(type, world);
@@ -552,6 +553,16 @@ public abstract class AbstractMinecart extends VehicleEntity {
 
         this.flipped = nbt.getBoolean("FlippedRotation");
         this.firstTick = nbt.getBoolean("HasTicked");
+        // Paper start - Friction API
+        if (nbt.contains("Paper.FrictionState")) {
+            String fs = nbt.getString("Paper.FrictionState");
+            try {
+                frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
+            } catch (Exception ignored) {
+                com.mojang.logging.LogUtils.getLogger().error("Unknown friction state " + fs + " for " + this);
+            }
+        }
+        // Paper end - Friction API
     }
 
     @Override
@@ -564,6 +575,12 @@ public abstract class AbstractMinecart extends VehicleEntity {
 
         nbt.putBoolean("FlippedRotation", this.flipped);
         nbt.putBoolean("HasTicked", this.firstTick);
+
+        // Paper start - Friction API
+        if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
+            nbt.putString("Paper.FrictionState", this.frictionState.toString());
+        }
+        // Paper end - Friction API
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java b/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java
index 00b0004940339dc105fb95f813bd35b16f7a9fb4..a8718ee94cd6b9a20bd1e9a49d58d39e6f3f2a7a 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java
@@ -548,6 +548,7 @@ public class NewMinecartBehavior extends MinecartBehavior {
 
     @Override
     public double getSlowdownFactor() {
+        if (this.minecart.frictionState == net.kyori.adventure.util.TriState.FALSE) return 1; // Paper
         return this.minecart.isVehicle() || !this.minecart.slowWhenEmpty ? 0.997D : 0.975D; // CraftBukkit - add !this.slowWhenEmpty
     }
 
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java b/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java
index cf871c174091139c8ad1affb84f98fcd74b60dee..23cbafcc12f6e5f5755215a72879a6cab306ad18 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java
@@ -522,6 +522,7 @@ public class OldMinecartBehavior extends MinecartBehavior {
 
     @Override
     public double getSlowdownFactor() {
+        if (this.minecart.frictionState == net.kyori.adventure.util.TriState.FALSE) return 1; // Paper
         return this.minecart.isVehicle() || !this.minecart.slowWhenEmpty ? 0.997D : 0.96D; // CraftBukkit - add !this.slowWhenEmpty
     }
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
index 1a291dd8a287db30e71dcb315599fc4b038764c4..30d62ee4d5cd2ddacb8783b5bbbf475d592b3e02 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
@@ -99,6 +99,18 @@ public class CraftItem extends CraftEntity implements Item {
         this.getHandle().age = willAge ? 0 : NO_AGE_TIME;
      }
 
+     @org.jetbrains.annotations.NotNull
+     @Override
+     public net.kyori.adventure.util.TriState getFrictionState() {
+        return this.getHandle().frictionState;
+     }
+
+     @Override
+     public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
+         java.util.Objects.requireNonNull(state, "state may not be null");
+         this.getHandle().frictionState = state;
+     }
+
     @Override
     public int getHealth() {
         return this.getHandle().health;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 1ceaa081231a617bd87331b308c24d9c7a8dcf2b..2fd4a3068d86a37cc18c9203448823c53d590ffb 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -1198,4 +1198,17 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
         nmsStack.hurtAndBreak(amount, this.getHandle(), slot, true);
     }
     // Paper end - ItemStack damage API
+    // Paper start - friction API
+    @org.jetbrains.annotations.NotNull
+    @Override
+    public net.kyori.adventure.util.TriState getFrictionState() {
+        return this.getHandle().frictionState;
+    }
+
+    @Override
+    public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
+        java.util.Objects.requireNonNull(state, "state may not be null");
+        this.getHandle().frictionState = state;
+    }
+    // Paper end - friction API
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
index d35c1a10e58932b19c8053c5dacdc25fd7f22e8c..ab9d06a9a4951a5b8aa14d47818a3850433e92b8 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
@@ -137,4 +137,18 @@ public abstract class CraftMinecart extends CraftVehicle implements Minecart {
     public int getDisplayBlockOffset() {
         return this.getHandle().getDisplayOffset();
     }
+
+    // Paper start - Friction API
+    @org.jetbrains.annotations.NotNull
+    @Override
+    public net.kyori.adventure.util.TriState getFrictionState() {
+        return this.getHandle().frictionState;
+    }
+
+    @Override
+    public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
+        java.util.Objects.requireNonNull(state, "state may not be null");
+        this.getHandle().frictionState = state;
+    }
+    // Paper end - Friction API
 }