Bundled in terribad draw.js.

craftscripts/draw.js

@@ -0,0 +1,94 @@
+// $Id$
+/*
+ * Very bad image drawer
+ * Copyright (C) 2011 sk89q <http://www.sk89q.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+importPackage(Packages.java.io);
+importPackage(Packages.java.awt);
+importPackage(Packages.javax.imageio);
+importPackage(Packages.com.sk89q.worldedit);
+importPackage(Packages.com.sk89q.worldedit.blocks);
+
+function makeColor(r, g, b) {
+    return new Color(r / 255, g / 255, b / 255);
+}
+
+var clothColors = [
+    makeColor(0, 0, 0), // White
+    makeColor(255, 100, 0), // Orange
+    makeColor(200, 0, 200), // Magenta
+    makeColor(87, 132, 223), // Light blue
+    makeColor(255, 255, 0), // Yellow
+    makeColor(0, 255, 0), // Green
+    makeColor(255, 180, 200), // Pink
+    makeColor(72, 72, 72), // Gray
+    makeColor(173, 173, 173), // Light grey
+    makeColor(0, 100, 160), // Cyan
+    makeColor(120, 0, 200), // Purple
+    makeColor(0, 0, 175), // Blue
+    makeColor(100, 60, 0), // Brown
+    makeColor(48, 80, 0), // Cactus green
+    makeColor(255, 0, 0), // Red
+    makeColor(0, 0, 0), // Black
+]
+
+// http://stackoverflow.com/questions/2103368/color-logic-algorithm/2103608#2103608
+function colorDistance(c1, c2) {
+    var rmean = (c1.getRed() + c2.getRed()) / 2;
+    var r = c1.getRed() - c2.getRed();
+    var g = c1.getGreen() - c2.getGreen();
+    var b = c1.getBlue() - c2.getBlue();
+    var weightR = 2 + rmean/256;
+    var weightG = 4.0;
+    var weightB = 2 + (255-rmean)/256
+    return Math.sqrt(weightR*r*r + weightG*g*g + weightB*b*b);
+}
+
+function findClosestWoolColor(col) {
+    var closestId = 0;
+    var closestDistance = colorDistance(col, clothColors[0]);
+    
+    for (var i = 1; i < clothColors.length; i++) {
+        var dist = colorDistance(col, clothColors[i]);
+        
+        if (dist < closestDistance) {
+            closestId = i;
+            closestDistance = dist;
+        }
+    }
+    
+    return closestId;
+}
+
+var sess = context.remember();
+
+context.checkArgs(1, 1, "<image>");
+
+var img = ImageIO.read(context.getSafeFile("drawings", argv[1]));
+
+var width = img.getWidth();
+var height = img.getHeight();
+
+var origin = player.getBlockIn();
+
+for (var x = 0; x < width; x++) {
+    for (var y = 0; y < height; y++) {
+        var c = new Color(img.getRGB(x, y));
+        var data = findClosestWoolColor(c);
+        sess.setBlock(origin.add(x, 0, y), new BaseBlock(35, data));
+    }
+}