SquidLib Copyright 2011-2013 Eben Howard Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. This product includes software developed at SquidPony (http://squidpony.com) Thanks to TSMI of #rgrd for help in developing SquidLib. Portions of Bresenham methods are derived from Bob Pendletons C algorithm, which is in turn derived from Paul Heckberts algorithm ("Digital Line Drawing" from "Graphics Gems", Academic Press, 1990 Portions of FOV and LOS classes are derived from works by Steven Blacken originally distributed as part of the Blacken Library for roguelike games Portions of some classes are derived from works by Jice orginally distributed in the libtcod library.