/* === Movement engine ported from my 'Pinapple 22' game=== -- Original game can be played at: http://girlflash.deviantart.com/art/Pinapple-22-Game-112250075 ####### Controls ######## # Arrow keys - Movement # ######################### */ package { import flash.display.Sprite; import flash.events.Event; import flash.events.KeyboardEvent; import flash.geom.*; [SWF(width=800, height=800, backgroundColor=0xFFFFFF)] public class GirlFlash_GameOne extends Sprite { //cell properties private var theX:Number = 220; private var theY:Number = 220; private var theSpeed:Number = 9; private var cellRadius:Number = 50; private var wallBounce:Number = 2; private var xMove:Number = 0; private var yMove:Number = 0; //membrane and properties private var membraneArray:Array = new Array(); private var membraneDetail:Number = 20; //key states private var leftKey:Boolean = false; private var upKey:Boolean = false; private var rightKey:Boolean = false; private var downKey:Boolean = false; //misc variables private var tempX:Number; private var tempY:Number; private var i:Number; private var a:Number; private var b:Number; private var c:Number; public function GirlFlash_GameOne() { // create all the points the membrane is made up of for (i=0; i<membraneDetail; i++){ //node structure is [ point, xMovement, yMovement] membraneArray.push([new Point(0,0),0,0]) membraneArray[i][0].x = theX + (cellRadius * Math.cos((((i/membraneDetail)*360)/180)*Math.PI)) membraneArray[i][0].y = theY + (cellRadius * Math.sin((((i/membraneDetail)*360)/180)*Math.PI)) } //make event listeners for game loop as well as input addEventListener(Event.ENTER_FRAME,onTick); stage.addEventListener(KeyboardEvent.KEY_DOWN,onKeyPress); stage.addEventListener(KeyboardEvent.KEY_UP,onKeyUnPress); trace("poo"); } private function onTick(evt:Event):void{ //Movement if (leftKey){ if (rightKey){ //do jack }else if (upKey){ yMove -= theSpeed * 0.7; xMove -= theSpeed * 0.7; }else if (downKey){ yMove += theSpeed * 0.7; xMove -= theSpeed * 0.7; }else{ xMove -= theSpeed; } }else if (rightKey){ if (upKey){ yMove -= theSpeed * 0.7; xMove += theSpeed * 0.7; }else if (downKey){ yMove += theSpeed * 0.7; xMove += theSpeed * 0.7; }else{ xMove += theSpeed; } }else if (upKey){ if (downKey){ //do jack }else{ yMove -= theSpeed; } }else if (downKey){ yMove += theSpeed; } //decelerate xMove*=0.8 yMove*=0.8 //position theX+=xMove; theY+=yMove; //collision with screen edges if (theX<10){ xMove=0; theX=10; } if (theX>790){ xMove=0; theX=790; } if (theY<10){ yMove=0; theY=10; } if (theY>790){ yMove=0; theY=790; } if (theX<cellRadius*0.7){ xMove += wallBounce; } if (theX>800-(cellRadius*0.7)){ xMove -= wallBounce; } if (theY<cellRadius*0.6){ yMove += wallBounce; } if (theY>800-(cellRadius*0.7)){ yMove -= wallBounce; } //membrane stuff for (i=0;i<membraneArray.length;i++){ //calculate the target position of the membrane point tempX = theX + (cellRadius * Math.cos((((i/membraneDetail)*360)/180)*Math.PI)) tempY = theY + (cellRadius * Math.sin((((i/membraneDetail)*360)/180)*Math.PI)) //calculate the points distance from the nucleus a = membraneArray[i][0].x - theX b = membraneArray[i][0].y - theY c = Math.sqrt((a*a)+(b*b)); //increment movement value by distance from target, relative to distance from nucleus //working in the nucleus distance is what allows deformation in the membrane membraneArray[i][1] -= (membraneArray[i][0].x - tempX)/(c/10) membraneArray[i][2] -= (membraneArray[i][0].y - tempY)/(c/10) //decelerate membrane point's movement membraneArray[i][1] *= 0.999 membraneArray[i][2] *= 0.999 //position point relative to target position, but offset by its movement values membraneArray[i][0].x -= ((membraneArray[i][0].x-tempX)/3)-membraneArray[i][1] membraneArray[i][0].y -= ((membraneArray[i][0].y-tempY)/3)-membraneArray[i][2] //membrane collision with screen edges if (membraneArray[i][0].x<5){ membraneArray[i][0].x=5 membraneArray[i][1]=0 } if (membraneArray[i][0].x>795){ membraneArray[i][0].x=795 membraneArray[i][1]=0 } if (membraneArray[i][0].y<5){ membraneArray[i][0].y=5 membraneArray[i][2]=0 } if (membraneArray[i][0].y>795){ membraneArray[i][0].y=795 membraneArray[i][2]=0 } } //render graphics.clear(); graphics.lineStyle(1,0x000000); graphics.moveTo(theX+xMove+jitter(),theY+yMove+jitter()); graphics.lineTo(theX+xMove+jitter(),theY+yMove+jitter()); graphics.moveTo(membraneArray[0][0].x,membraneArray[0][0].y); for (i=0; i<membraneArray.length; i++){ graphics.lineTo(membraneArray[i][0].x,membraneArray[i][0].y); } graphics.lineTo(membraneArray[0][0].x,membraneArray[0][0].y); } private function onKeyPress(evt:KeyboardEvent):void{ switch(evt.keyCode){ case 37: leftKey = true; break; case 38: upKey = true; break; case 39: rightKey = true; break; case 40: downKey = true; break; } } private function onKeyUnPress(evt:KeyboardEvent):void{ switch(evt.keyCode){ case 37: leftKey = false; break; case 38: upKey = false; break; case 39: rightKey = false; break; case 40: downKey = false; break; } } private function jitter():Number{ return (Math.random()*10)-5 } } }