Make usage of stateful patterns thread-safe (#2633)

* Make usage of No(Axis)Patterns thread-safe

* make more pattern usage thread-safe

* make more WE patterns thread safe

* remove StatefulPattern

Author: SirYwell

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/ExpressionPattern.java

@@ -1,6 +1,7 @@
 package com.fastasyncworldedit.core.function.pattern;
 
 import com.sk89q.worldedit.function.pattern.AbstractPattern;
+import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.internal.expression.EvaluationException;
 import com.sk89q.worldedit.internal.expression.Expression;
 import com.sk89q.worldedit.internal.expression.ExpressionException;
@@ -57,4 +58,9 @@ public BaseBlock applyBlock(BlockVector3 vector) {
         }
     }
 
+    @Override
+    public Pattern fork() {
+        return new ExpressionPattern(this.expression.clone());
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/Linear2DBlockPattern.java

@@ -7,6 +7,8 @@
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.block.BaseBlock;
 
+import java.util.Arrays;
+
 import static java.lang.Math.floorDiv;
 
 /**
@@ -52,4 +54,10 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return patternsArray[index].apply(extent, get, set);
     }
 
+    @Override
+    public Pattern fork() {
+        final Pattern[] forked = Arrays.stream(this.patternsArray).map(Pattern::fork).toArray(Pattern[]::new);
+        return new Linear2DBlockPattern(forked, this.xScale, this.zScale);
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/Linear3DBlockPattern.java

@@ -7,6 +7,8 @@
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.block.BaseBlock;
 
+import java.util.Arrays;
+
 import static java.lang.Math.floorDiv;
 
 /**
@@ -56,4 +58,10 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return patternsArray[index].apply(extent, get, set);
     }
 
+    @Override
+    public Pattern fork() {
+        final Pattern[] forked = Arrays.stream(this.patternsArray).map(Pattern::fork).toArray(Pattern[]::new);
+        return new Linear3DBlockPattern(forked, this.xScale, this.yScale, this.zScale);
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/LinearBlockPattern.java

@@ -47,4 +47,10 @@ public void reset() {
         index = 0;
     }
 
+    @Override
+    public Pattern fork() {
+        final Pattern[] forked = Arrays.stream(this.patternsArray).map(Pattern::fork).toArray(Pattern[]::new);
+        return new LinearBlockPattern(forked);
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/MaskedPattern.java

@@ -43,4 +43,9 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return secondary.apply(extent, get, set);
     }
 
+    @Override
+    public Pattern fork() {
+        return new MaskedPattern(this.mask.copy(), this.primary.fork(), this.secondary.fork());
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/NoXPattern.java

@@ -36,4 +36,9 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return pattern.apply(extent, mutable, set);
     }
 
+    @Override
+    public Pattern fork() {
+        return new NoXPattern(this.pattern.fork());
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/NoYPattern.java

@@ -36,4 +36,9 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return pattern.apply(extent, mutable, set);
     }
 
+    @Override
+    public Pattern fork() {
+        return new NoYPattern(this.pattern.fork());
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/NoZPattern.java

@@ -1,6 +1,7 @@
 package com.fastasyncworldedit.core.function.pattern;
 
 import com.fastasyncworldedit.core.math.MutableBlockVector3;
+import com.fastasyncworldedit.core.queue.Filter;
 import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.function.pattern.AbstractPattern;
@@ -36,4 +37,9 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return pattern.apply(extent, mutable, set);
     }
 
+    @Override
+    public Pattern fork() {
+        return new NoZPattern(this.pattern.fork());
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/OffsetPattern.java

@@ -60,4 +60,9 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return pattern.apply(extent, get, mutable);
     }
 
+    @Override
+    public Pattern fork() {
+        return new OffsetPattern(this.pattern.fork(), this.dx, this.dy, this.dz, this.minY, this.maxY);
+    }
+
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/RandomOffsetPattern.java

@@ -72,4 +72,9 @@ public boolean apply(Extent extent, BlockVector3 get, BlockVector3 set) throws W
         return pattern.apply(extent, get, mutable);
     }
 
+    @Override
+    public Pattern fork() {
+        return new RandomOffsetPattern(this.pattern.fork(), this.dx, this.dy, this.dz, this.minY, this.maxY);
+    }
+
 }