/**
 * 25-Line ActionScript Contest Entry
 * 
 * Project: Trigonometry Wars
 * Author:  Iain Lobb - iainlobb@googlemail.com
 * Date:    27 NOVEMBER 08
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
// 3 free lines! Alter the parameters of the following lines or remove them.
// Do not substitute other code for the three lines in this section
[SWF(width=550, height=400, backgroundColor=0x000000, frameRate=24)]
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;

// INSTRUCTIONS: PLEASE NOTE IT CAN TAKE A WHILE BEFORE ENEMIES APPEAR SO PLEASE BE PATIENT!

// 25 lines begins here!

var enemies:Array = [];

function createOrUpdateEntity(props:Object, entity:MovieClip = null, updateFunction:Function = null, drawCommands:Vector.<int> = null, drawShapes:Vector.<Number> = null, colour:uint = 0x000000):void
{
	if (!entity) entity = MovieClip(addChild(new MovieClip()));
	if (colour) entity.graphics.lineStyle(1, colour, 1.0, false, "normal", null, null,3);
	if (drawCommands) entity.graphics.drawPath(drawCommands, drawShapes, GraphicsPathWinding.NON_ZERO);
	if (updateFunction != null) entity.addEventListener(Event.ENTER_FRAME, updateFunction);
	for (var thing:String in props) entity[thing] = props[thing];
	if (props.array) {props.array.push(entity)};
}

function updateShip(event:Event):void
{
	createOrUpdateEntity({x:MovieClip(event.target).x + ((mouseX - MovieClip(event.target).x) / 5), y:MovieClip(event.target).y + ((mouseY - MovieClip(event.target).y) / 5),  rotation:(Math.atan2(mouseY - MovieClip(event.target).y, mouseX - MovieClip(event.target).x) * (180 / Math.PI)) + 90}, MovieClip(event.target));
	createOrUpdateEntity({x:MovieClip(event.target).x, y:MovieClip(event.target).y, rotation:MovieClip(event.target).rotation, updateFunction:updateBullet, filters:[new GlowFilter(0xFFFF00)]}, null, updateBullet, Vector.<int>([1,2,2,2]), Vector.<Number>([0, 0, 3, 7, -3, 7, 0, 0]), 0xFFFF00);
	if (Math.random() > 0.985) for (var i:int = 0; i < 20; i++) createOrUpdateEntity({x:300 + (Math.sin((i/20)*2*Math.PI) * 400), y:300 + (Math.cos((i/20)*2*Math.PI) * 400), rotation:0, array:enemies, updateFunction:updateEnemy, filters:[new GlowFilter(0xFF0000, 1, 12, 12, 4)]}, null, updateEnemy, Vector.<int>([1,2,2,2,2]), Vector.<Number>([0, 0, 10, 10, 0, 20, -10, 10, 0, 0]), 0xFF0000);
}

function updateBullet(event:Event):void
{
	createOrUpdateEntity({x:MovieClip(event.target).x + (Math.cos((MovieClip(event.target).rotation - 90) * (Math.PI / 180)) * 12.5), y:MovieClip(event.target).y + (Math.sin((MovieClip(event.target).rotation - 90) * (Math.PI / 180)) * 12.5), rotation:MovieClip(event.target).rotation}, MovieClip(event.target));
	if (MovieClip(event.target).x > 500 || MovieClip(event.target).x < 0 || MovieClip(event.target).y > 400 || MovieClip(event.target).y < 0) killEntity(MovieClip(event.target), false);
	for (var i:int = 0; i < enemies.length; i++) if (Math.sqrt((((enemies[i].x - MovieClip(event.target).x))*((enemies[i].x - MovieClip(event.target).x))) + (((enemies[i].y - MovieClip(event.target).y))*((enemies[i].y - MovieClip(event.target).y)))) < 10 && this.contains(enemies[i])) killEntity(enemies[i], true);
}

function killEntity(entity:MovieClip, doExplosion:Boolean):void
{
	if (this.contains(entity)) { removeChild(entity) };
	entity.removeEventListener(Event.ENTER_FRAME, entity.updateFunction)
	if (doExplosion) { for (var i:int = 0; i < 10; i++) createOrUpdateEntity({x:entity.x, y:entity.y, rotation:i * 36, updateFunction:updateSpark, filters:[new GlowFilter(0xFFFFFF)]}, null, updateSpark, Vector.<int>([1,2]), Vector.<Number>([0, 0, 0, -10]), 0xFFFFFF) };
}

function updateSpark(event:Event):void
{
	createOrUpdateEntity({x:MovieClip(event.target).x + (Math.cos((MovieClip(event.target).rotation - 90) * (Math.PI / 180)) * 12.5), y:MovieClip(event.target).y + (Math.sin((MovieClip(event.target).rotation - 90) * (Math.PI / 180)) * 12.5), rotation:MovieClip(event.target).rotation}, MovieClip(event.target));
	if (MovieClip(event.target).x > 500 || MovieClip(event.target).x < 0 || MovieClip(event.target).y > 400 || MovieClip(event.target).y < 0) killEntity(MovieClip(event.target), false);
}

function updateEnemy(event:Event):void {createOrUpdateEntity({x:MovieClip(event.target).x + ((mouseX - MovieClip(event.target).x) / 45), y:MovieClip(event.target).y + ((mouseY - MovieClip(event.target).y) / 45), rotation:0}, MovieClip(event.target))};

createOrUpdateEntity({x:300, y:300, rotation:0, filters:[new GlowFilter(0x00FF00)]}, null, updateShip, Vector.<int>([1,2,2,2,2, 2, 2, 2, 2, 2, 2]), Vector.<Number>([-7.3, -10.3, -5.5, -10.3, -7, -0.6, -0.5, 2.8, 6.2, -0.3, 4.5, -10.3, 6.3, -10.3, 11.1, 1.4, -0.2, 9.6, -11.9, 1.3, -7.3, -10.3]), 0x00FF00);


// 25 lines ends here!