(?:`)?(?:cube`game`engine`source`code,`20`dec`2003`release\.)?(?:`)?(?:.{,5000})`this`software`is`provided`as\-`is`,`without`any`express`or`implied`warranty\.`in`no`event`will`the`authors`be`held`liable`for`any`damages`arising`from`the`use`of`this`software\.`permission`is`granted`to`anyone`to`use`this`software`for`any`purpose,`including`commercial`applications,`and`to`alter`it`and`redistribute`it`freely,`subject`to`the`following`restrictions:`(?:.{,20})`the`origin`of`this`software`must`not`be`misrepresented;`you`must`not`claim`that`you`wrote`the`original`software\.`if`you`use`this`software`in`a`product,`an`acknowledgement`in`the`product`documentation`would`be`appreciated`but`is`not`required\.`(?:.{,20})`altered`source`versions`must`be`plainly`marked`as`such,`and`must`not`be`misrepresented`as`being`the`original`software\.`(?:.{,20})`this`notice`may`not`be`removed`or`altered`from`any`source`distribution\.`additional`clause`specific`to`cube:`(?:.{,20})`source`versions`may`not`be`relicensed`under`a`different`license`without`my`explicitly`written`permission\.