summaryrefslogtreecommitdiffstats
path: root/nms-patches/Explosion.patch
blob: ccc8d40fc68328f249509ce99f07e4c404717886 (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
--- a/net/minecraft/server/Explosion.java
+++ b/net/minecraft/server/Explosion.java
@@ -10,6 +10,13 @@
 import java.util.Random;
 import javax.annotation.Nullable;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityExplodeEvent;
+import org.bukkit.Location;
+import org.bukkit.event.block.BlockExplodeEvent;
+// CraftBukkit end
+
 public class Explosion {
 
     private final boolean a;
@@ -23,11 +30,12 @@
     private final float size;
     private final List<BlockPosition> blocks = Lists.newArrayList();
     private final Map<EntityHuman, Vec3D> k = Maps.newHashMap();
+    public boolean wasCanceled = false; // CraftBukkit - add field
 
     public Explosion(World world, Entity entity, double d0, double d1, double d2, float f, boolean flag, boolean flag1) {
         this.world = world;
         this.source = entity;
-        this.size = f;
+        this.size = (float) Math.max(f, 0.0); // CraftBukkit - clamp bad values
         this.posX = d0;
         this.posY = d1;
         this.posZ = d2;
@@ -36,6 +44,11 @@
     }
 
     public void a() {
+        // CraftBukkit start
+        if (this.size < 0.1F) {
+            return;
+        }
+        // CraftBukkit end
         HashSet hashset = Sets.newHashSet();
         boolean flag = true;
 
@@ -69,7 +82,7 @@
                                 f -= (f2 + 0.3F) * 0.3F;
                             }
 
-                            if (f > 0.0F && (this.source == null || this.source.a(this, this.world, blockposition, iblockdata, f))) {
+                            if (f > 0.0F && (this.source == null || this.source.a(this, this.world, blockposition, iblockdata, f)) && blockposition.getY() < 256 && blockposition.getY() >= 0) { // CraftBukkit - don't wrap explosions
                                 hashset.add(blockposition);
                             }
 
@@ -113,7 +126,16 @@
                         double d12 = (double) this.world.a(vec3d, entity.getBoundingBox());
                         double d13 = (1.0D - d7) * d12;
 
-                        entity.damageEntity(DamageSource.explosion(this), (float) ((int) ((d13 * d13 + d13) / 2.0D * 7.0D * (double) f3 + 1.0D)));
+                        // CraftBukkit start
+                        // entity.damageEntity(DamageSource.explosion(this), (float) ((int) ((d13 * d13 + d13) / 2.0D * 7.0D * (double) f3 + 1.0D)));
+                        CraftEventFactory.entityDamage = source;
+                        entity.forceExplosionKnockback = false;
+                        boolean wasDamaged = entity.damageEntity(DamageSource.explosion(this), (float) ((int) ((d13 * d13 + d13) / 2.0D * 7.0D * (double) f3 + 1.0D)));
+                        CraftEventFactory.entityDamage = null;
+                        if (!wasDamaged && !(entity instanceof EntityTNTPrimed || entity instanceof EntityFallingBlock) && !entity.forceExplosionKnockback) {
+                            continue;
+                        }
+                        // CraftBukkit end
                         double d14 = d13;
 
                         if (entity instanceof EntityLiving) {
@@ -149,6 +171,50 @@
         BlockPosition blockposition;
 
         if (this.b) {
+            // CraftBukkit start
+            org.bukkit.World bworld = this.world.getWorld();
+            org.bukkit.entity.Entity explode = this.source == null ? null : this.source.getBukkitEntity();
+            Location location = new Location(bworld, this.posX, this.posY, this.posZ);
+
+            List<org.bukkit.block.Block> blockList = Lists.newArrayList();
+            for (int i1 = this.blocks.size() - 1; i1 >= 0; i1--) {
+                BlockPosition cpos = (BlockPosition) this.blocks.get(i1);
+                org.bukkit.block.Block bblock = bworld.getBlockAt(cpos.getX(), cpos.getY(), cpos.getZ());
+                if (bblock.getType() != org.bukkit.Material.AIR) {
+                    blockList.add(bblock);
+                }
+            }
+
+            boolean cancelled;
+            List<org.bukkit.block.Block> bukkitBlocks;
+            float yield;
+
+            if (explode != null) {
+                EntityExplodeEvent event = new EntityExplodeEvent(explode, location, blockList, 1.0F / this.size);
+                this.world.getServer().getPluginManager().callEvent(event);
+                cancelled = event.isCancelled();
+                bukkitBlocks = event.blockList();
+                yield = event.getYield();
+            } else {
+                BlockExplodeEvent event = new BlockExplodeEvent(location.getBlock(), blockList, 1.0F / this.size);
+                this.world.getServer().getPluginManager().callEvent(event);
+                cancelled = event.isCancelled();
+                bukkitBlocks = event.blockList();
+                yield = event.getYield();
+            }
+
+            this.blocks.clear();
+
+            for (org.bukkit.block.Block bblock : bukkitBlocks) {
+                BlockPosition coords = new BlockPosition(bblock.getX(), bblock.getY(), bblock.getZ());
+                blocks.add(coords);
+            }
+
+            if (cancelled) {
+                this.wasCanceled = true;
+                return;
+            }
+            // CraftBukkit end
             iterator = this.blocks.iterator();
 
             while (iterator.hasNext()) {
@@ -180,7 +246,8 @@
 
                 if (iblockdata.getMaterial() != Material.AIR) {
                     if (block.a(this)) {
-                        block.dropNaturally(this.world, blockposition, this.world.getType(blockposition), 1.0F / this.size, 0);
+                        // CraftBukkit - add yield
+                        block.dropNaturally(this.world, blockposition, this.world.getType(blockposition), yield, 0);
                     }
 
                     this.world.setTypeAndData(blockposition, Blocks.AIR.getBlockData(), 3);
@@ -195,7 +262,11 @@
             while (iterator.hasNext()) {
                 blockposition = (BlockPosition) iterator.next();
                 if (this.world.getType(blockposition).getMaterial() == Material.AIR && this.world.getType(blockposition.down()).b() && this.c.nextInt(3) == 0) {
-                    this.world.setTypeUpdate(blockposition, Blocks.FIRE.getBlockData());
+                    // CraftBukkit start - Ignition by explosion
+                    if (!org.bukkit.craftbukkit.event.CraftEventFactory.callBlockIgniteEvent(this.world, blockposition.getX(), blockposition.getY(), blockposition.getZ(), this).isCancelled()) {
+                        this.world.setTypeUpdate(blockposition, Blocks.FIRE.getBlockData());
+                    }
+                    // CraftBukkit end
                 }
             }
         }
@@ -208,7 +279,9 @@
 
     @Nullable
     public EntityLiving getSource() {
-        return this.source == null ? null : (this.source instanceof EntityTNTPrimed ? ((EntityTNTPrimed) this.source).getSource() : (this.source instanceof EntityLiving ? (EntityLiving) this.source : null));
+        // CraftBukkit start - obtain Fireball shooter for explosion tracking
+        return this.source == null ? null : (this.source instanceof EntityTNTPrimed ? ((EntityTNTPrimed) this.source).getSource() : (this.source instanceof EntityLiving ? (EntityLiving) this.source : (this.source instanceof EntityFireball ? ((EntityFireball) this.source).shooter : null)));
+        // CraftBukkit end
     }
 
     public void clearBlocks() {