minetest worledit .we format export

- harcoded generation of lua content of .we export
- export something, but not yet correct ( walls are points ... )

java/org/artisanlogiciel/games/maze/DrawingGenerator.java

@@ -0,0 +1,80 @@
+package org.artisanlogiciel.games.maze;
+
+import org.artisanlogiciel.graphics.Drawing;
+import org.artisanlogiciel.graphics.DrawingLine;
+
+import java.awt.*;
+
+public class DrawingGenerator {
+
+    LabyModel model;
+
+    public DrawingGenerator(LabyModel model) {
+        this.model = model;
+    }
+
+    void addWallInDrawing(int pX, int pY, Drawing d) {
+        short walls = model.getWalls(pX, pY);
+        short wdrawn = 0;
+        // todo
+        int w = 2;
+        int h = 2;
+        int ox = 0;
+        int oy = 0;
+
+        int x = ox + (int) (pX * w);
+        int y = oy + (int) (pY * h);
+        DrawingLine dl = new DrawingLine();
+        // order matters since all points are linked
+        if ((pY == 0) && LabyModel.isFlagSet(walls, Brick.UP)) {
+            dl.addPoint(new Point(x, y));
+            dl.addPoint(new Point(x + (int) w, y));
+            wdrawn |= Brick.UP;
+        }
+        if (LabyModel.isFlagSet(walls, Brick.RIGHT)) {
+            if (!LabyModel.isFlagSet(wdrawn, Brick.UP)) {
+                dl.addPoint(new Point(x + (int) w, y));
+            }
+            dl.addPoint(new Point(x + (int) w, y + (int) h));
+            wdrawn |= Brick.RIGHT;
+        }
+        if (LabyModel.isFlagSet(walls, Brick.DOWN)) {
+            if (!LabyModel.isFlagSet(wdrawn, Brick.RIGHT)) {
+                if (wdrawn != 0) {
+                    d.addLine(dl);
+                    dl = new DrawingLine();
+                }
+                dl.addPoint(new Point(x + (int) w, y + (int) h));
+            }
+            dl.addPoint(new Point(x, y + (int) h));
+            wdrawn |= Brick.DOWN;
+        }
+        if ((pX == 0) && LabyModel.isFlagSet(walls, Brick.LEFT)) {
+            if (!LabyModel.isFlagSet(wdrawn, Brick.DOWN)) {
+                if (wdrawn != 0) {
+                    d.addLine(dl);
+                    dl = new DrawingLine();
+                }
+                dl.addPoint(new Point(x, y + (int) h));
+            }
+            dl.addPoint(new Point(x, y));
+            wdrawn |= Brick.LEFT;
+        }
+        if (wdrawn != 0) {
+            d.addLine(dl);
+        }
+    }
+
+    public Drawing createDrawing() {
+        Drawing d = new Drawing();
+        {
+            // draw all walls within clip bounds horiz first then lines
+            for (int y = 0; y < model.getHeight(); y++) {
+                for (int x = 0; x < model.getWidth(); x++) {
+                    addWallInDrawing(x, y, d);
+                }
+            }
+        }
+        return d;
+    }
+}