Converted ShatteredPD to Build from Gradle

Major Changes:
- Shattered now builds effortlessly either from gradle CLI or android studio
- Much better dependency management through gradle (although it's not really used atm)
- Separate PD-classes repo is now SPD-classes module within main repo

SPD-classes/src/main/java/com/watabou/utils/Point.java

@@ -0,0 +1,85 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015  Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2016 Evan Debenham
+ *
+ * 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/>
+ */
+
+package com.watabou.utils;
+
+public class Point {
+
+	public int x;
+	public int y;
+	
+	public Point() {
+	}
+	
+	public Point( int x, int y ) {
+		this.x = x;
+		this.y = y;
+	}
+	
+	public Point( Point p ) {
+		this.x = p.x;
+		this.y = p.y;
+	}
+	
+	public Point set( int x, int y ) {
+		this.x = x;
+		this.y = y;
+		return this;
+	}
+	
+	public Point set( Point p ) {
+		x = p.x;
+		y = p.y;
+		return this;
+	}
+	
+	public Point clone() {
+		return new Point( this );
+	}
+	
+	public Point scale( float f ) {
+		this.x *= f;
+		this.y *= f;
+		return this;
+	}
+	
+	public Point offset( int dx, int dy ) {
+		x += dx;
+		y += dy;
+		return this;
+	}
+	
+	public Point offset( Point d ) {
+		x += d.x;
+		y += d.y;
+		return this;
+	}
+	
+	@Override
+	public boolean equals( Object obj ) {
+		if (obj instanceof Point) {
+			Point p = (Point)obj;
+			return p.x == x && p.y == y;
+		} else {
+			return false;
+		}
+	}
+}