simplify Point code

Author: JasperGeurtz

src/main/java/bwapi/Position.java

@@ -14,27 +14,27 @@ public Position(final int x, final int y) {
     }
 
     public Position(final Position p) {
-        super(p.x, p.y, SIZE_IN_PIXELS);
+        this(p.x, p.y);
     }
 
     public Position(final WalkPosition wp) {
-        super(wp.x * WalkPosition.SIZE_IN_PIXELS, wp.y * WalkPosition.SIZE_IN_PIXELS, SIZE_IN_PIXELS);
+        this(wp.x * WalkPosition.SIZE_IN_PIXELS, wp.y * WalkPosition.SIZE_IN_PIXELS);
     }
 
     public Position(final TilePosition tp) {
-        super(tp.x * TilePosition.SIZE_IN_PIXELS, tp.y * TilePosition.SIZE_IN_PIXELS, SIZE_IN_PIXELS);
+        this(tp.x * TilePosition.SIZE_IN_PIXELS, tp.y * TilePosition.SIZE_IN_PIXELS);
     }
 
     Position(ClientData.Position position) {
         this(position.getX(), position.getY());
     }
 
     public TilePosition toTilePosition() {
-        return new TilePosition(x / TilePosition.SIZE_IN_PIXELS, y / TilePosition.SIZE_IN_PIXELS);
+        return new TilePosition(this);
     }
 
     public WalkPosition toWalkPosition() {
-        return new WalkPosition(x / WalkPosition.SIZE_IN_PIXELS, y / WalkPosition.SIZE_IN_PIXELS);
+        return new WalkPosition(this);
     }
 
     public Position subtract(final Position other) {

src/main/java/bwapi/TilePosition.java

@@ -13,27 +13,27 @@ public TilePosition(final int x, final int y) {
     }
 
     public TilePosition(final Position p) {
-        super(p.x / SIZE_IN_PIXELS, p.y / SIZE_IN_PIXELS, SIZE_IN_PIXELS);
+        this(p.x / SIZE_IN_PIXELS, p.y / SIZE_IN_PIXELS);
     }
 
     public TilePosition(final WalkPosition wp) {
-        super(wp.x / WalkPosition.TILE_WALK_FACTOR, wp.y / WalkPosition.TILE_WALK_FACTOR, SIZE_IN_PIXELS);
+        this(wp.x / WalkPosition.TILE_WALK_FACTOR, wp.y / WalkPosition.TILE_WALK_FACTOR);
     }
 
     public TilePosition(final TilePosition tp) {
-        super(tp.x, tp.y, SIZE_IN_PIXELS);
+        this(tp.x, tp.y);
     }
 
     TilePosition(ClientData.Position position) {
         this(position.getX(), position.getY());
     }
 
     public Position toPosition() {
-        return new Position(x * SIZE_IN_PIXELS, y * SIZE_IN_PIXELS);
+        return new Position(this);
     }
 
     public WalkPosition toWalkPosition() {
-        return new WalkPosition(x * TILE_WALK_FACTOR, y * TILE_WALK_FACTOR);
+        return new WalkPosition(this);
     }
 
     public TilePosition subtract(final TilePosition other) {

src/main/java/bwapi/WalkPosition.java

@@ -13,23 +13,23 @@ public WalkPosition(final int x, final int y) {
     }
 
     public WalkPosition(final Position p) {
-        super(p.x / SIZE_IN_PIXELS, p.y / SIZE_IN_PIXELS, SIZE_IN_PIXELS);
+        this(p.x / SIZE_IN_PIXELS, p.y / SIZE_IN_PIXELS);
     }
 
     public WalkPosition(final WalkPosition wp) {
-        super(wp.x, wp.y, SIZE_IN_PIXELS);
+        this(wp.x, wp.y);
     }
 
     public WalkPosition(final TilePosition tp) {
-        super(tp.x * TILE_WALK_FACTOR, tp.y * TILE_WALK_FACTOR, SIZE_IN_PIXELS);
+        this(tp.x * TILE_WALK_FACTOR, tp.y * TILE_WALK_FACTOR);
     }
 
     public Position toPosition() {
-        return new Position(x * SIZE_IN_PIXELS, y * SIZE_IN_PIXELS);
+        return new Position(this);
     }
 
     public TilePosition toTilePosition() {
-        return new TilePosition(x / TILE_WALK_FACTOR, y / TILE_WALK_FACTOR);
+        return new TilePosition(this);
     }
 
     public WalkPosition subtract(final WalkPosition other) {