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worldedit-core/src/main/java/com/sk89q/worldedit/command/tool/BrushTool.java

@@ -0,0 +1,201 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.command.tool;
+
+import com.sk89q.worldedit.*;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.blocks.BlockID;
+import com.sk89q.worldedit.command.tool.brush.Brush;
+import com.sk89q.worldedit.command.tool.brush.SphereBrush;
+import com.sk89q.worldedit.entity.Player;
+import com.sk89q.worldedit.extension.platform.Actor;
+import com.sk89q.worldedit.extension.platform.Platform;
+import com.sk89q.worldedit.extent.inventory.BlockBag;
+import com.sk89q.worldedit.function.mask.Mask;
+import com.sk89q.worldedit.function.mask.MaskIntersection;
+import com.sk89q.worldedit.function.pattern.BlockPattern;
+import com.sk89q.worldedit.function.pattern.Pattern;
+import com.sk89q.worldedit.session.request.Request;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Builds a shape at the place being looked at.
+ */
+public class BrushTool implements TraceTool {
+
+    protected static int MAX_RANGE = 500;
+    protected int range = -1;
+    private Mask mask = null;
+    private Brush brush = new SphereBrush();
+    private Pattern material = new BlockPattern(new BaseBlock(BlockID.COBBLESTONE));
+    private double size = 1;
+    private String permission;
+
+    /**
+     * Construct the tool.
+     * 
+     * @param permission the permission to check before use is allowed
+     */
+    public BrushTool(String permission) {
+        checkNotNull(permission);
+        this.permission = permission;
+    }
+
+    @Override
+    public boolean canUse(Actor player) {
+        return player.hasPermission(permission);
+    }
+
+    /**
+     * Get the filter.
+     * 
+     * @return the filter
+     */
+    public Mask getMask() {
+        return mask;
+    }
+
+    /**
+     * Set the block filter used for identifying blocks to replace.
+     * 
+     * @param filter the filter to set
+     */
+    public void setMask(Mask filter) {
+        this.mask = filter;
+    }
+
+    /**
+     * Set the brush.
+     * 
+     * @param brush tbe brush
+     * @param permission the permission
+     */
+    public void setBrush(Brush brush, String permission) {
+        this.brush = brush;
+        this.permission = permission;
+    }
+
+    /**
+     * Get the current brush.
+     * 
+     * @return the current brush
+     */
+    public Brush getBrush() {
+        return brush;
+    }
+
+    /**
+     * Set the material.
+     * 
+     * @param material the material
+     */
+    public void setFill(Pattern material) {
+        this.material = material;
+    }
+
+    /**
+     * Get the material.
+     * 
+     * @return the material
+     */
+    public Pattern getMaterial() {
+        return material;
+    }
+
+    /**
+     * Get the set brush size.
+     * 
+     * @return a radius
+     */
+    public double getSize() {
+        return size;
+    }
+
+    /**
+     * Set the set brush size.
+     * 
+     * @param radius a radius
+     */
+    public void setSize(double radius) {
+        this.size = radius;
+    }
+
+    /**
+     * Get the set brush range.
+     * 
+     * @return the range of the brush in blocks
+     */
+    public int getRange() {
+        return (range < 0) ? MAX_RANGE : Math.min(range, MAX_RANGE);
+    }
+
+    /**
+     * Set the set brush range.
+     * 
+     * @param range the range of the brush in blocks
+     */
+    public void setRange(int range) {
+        this.range = range;
+    }
+
+    @Override
+    public boolean actPrimary(Platform server, LocalConfiguration config, Player player, LocalSession session) {
+        WorldVector target = null;
+        target = player.getBlockTrace(getRange(), true);
+
+        if (target == null) {
+            player.printError("No block in sight!");
+            return true;
+        }
+
+        BlockBag bag = session.getBlockBag(player);
+
+        EditSession editSession = session.createEditSession(player);
+        Request.request().setEditSession(editSession);
+        if (mask != null) {
+            Mask existingMask = editSession.getMask();
+
+            if (existingMask == null) {
+                editSession.setMask(mask);
+            } else if (existingMask instanceof MaskIntersection) {
+                ((MaskIntersection) existingMask).add(mask);
+            } else {
+                MaskIntersection newMask = new MaskIntersection(existingMask);
+                newMask.add(mask);
+                editSession.setMask(newMask);
+            }
+        }
+
+        try {
+            brush.build(editSession, target, material, size);
+        } catch (MaxChangedBlocksException e) {
+            player.printError("Max blocks change limit reached.");
+        } finally {
+            if (bag != null) {
+                bag.flushChanges();
+            }
+            session.remember(editSession);
+        }
+
+        return true;
+    }
+
+}