今回はすらいむ作ってみました。かわいいです。
とりあえず構造
これは周りに40個の円を配置させてそれをjointで結んでいます。
そしてこのままでは潰れてしまうので対角線上に伸縮性のあるjointを引いています。
こんな感じ http://about-hiroppy.com/flash/work/slime/
そーす
package { import flash.display.Sprite; import flash.events.Event; import flash.text.TextField; import flash.text.TextFieldAutoSize; import flash.text.TextFormat; import Box2D.Collision.Shapes.b2PolygonShape; import Box2D.Common.Math.b2Vec2; import Box2D.Dynamics.b2Body; import Box2D.Dynamics.b2BodyDef; import Box2D.Dynamics.b2DebugDraw; import Box2D.Dynamics.b2World; import Box2D.Dynamics.Joints.b2DistanceJointDef; import Box2D.Dynamics.Joints.b2RevoluteJoint; import Box2D.Dynamics.Joints.b2RevoluteJointDef; [SWF(width="500",height="500",backgroundColor="0xfffacd")] // [SWF(width="500",height="500",backgroundColor="0")] //debug public class slime extends Sprite { private var world:b2World; private const gravity:b2Vec2 = new b2Vec2(0,9.8); private var wall:b2PolygonShape= new b2PolygonShape(); private var wallDf:b2BodyDef = new b2BodyDef(); private var wallB:b2Body; private var circles:Vector.<b2Body> = new Vector.<b2Body>; private var N:int = 40; private var slime:Sprite = new Sprite(); private var slime_eye_left:Sprite = new Sprite(); private var slime_eye_right:Sprite = new Sprite(); private var slime_eye_left_white:Sprite = new Sprite(); private var slime_eye_right_white:Sprite = new Sprite(); private var canvas:Sprite = new Sprite(); public function slime() { //background mater var meter_line:Sprite = new Sprite(); meter_line.graphics.lineStyle(3,0); meter_line.graphics.moveTo(50,500); meter_line.graphics.lineTo(50,0); stage.addChild(meter_line); //separated 100 for(var i:int=400;i >0;i-=100){ var meter_stop:Sprite = new Sprite(); meter_stop.graphics.lineStyle(2,0); meter_stop.graphics.moveTo(50,i); meter_stop.graphics.lineTo(80,i); stage.addChild(meter_stop); } var meter_string:Array = new Array("100","200","300","400"); for(i=0;i<meter_string.length;i++){ var tf:TextField = new TextField(); tf.autoSize = TextFieldAutoSize.LEFT; tf.defaultTextFormat = new TextFormat("ahahahahahaha.warota",20); tf.text = meter_string[i]; tf.x = 85; tf.y = 400 - i*100; stage.addChild(tf); } //描画Layer stage.addChild(canvas); // The physical world world = new b2World(gravity,true); //walls // Left wallDf.position.Set( -95 / 30, stage.stageHeight / 30 /2.5); wall.SetAsBox(100/30, stage.stageHeight/30); wallB = world.CreateBody(wallDf); wallB.CreateFixture2(wall); // Right wallDf.position.Set((stage.stageWidth + 95) / 30, stage.stageHeight / 30 / 2); wallB = world.CreateBody(wallDf); wallB.CreateFixture2(wall); // Bottom wallDf.position.Set(stage.stageWidth / 30 / 2, (stage.stageHeight + 101) / 30); wall.SetAsBox(stage.stageWidth/30, 100/30); wallB = world.CreateBody(wallDf); wallB.CreateFixture2(wall); //angle var rot:int = 0; //circles and joints for(i=0;i<N;i++){ var c:Circle = new Circle(world,1,0.7,0.8); var c_2:b2Body = c.Circle_2((100*Math.cos(rot*Math.PI/180)+220),(100*Math.sin(rot*Math.PI/180)+220)); circles.push(c_2); if(i == 39) joint(circles[0],circles[i]); if(i != 0) joint(circles[i-1],circles[i]); rot += 9; } for(i=0;i<20;i++){ joint_center(circles[i],circles[i+20]); } // //bebug mode // var debug:b2DebugDraw = new b2DebugDraw(); // debug.SetSprite(this); // debug.SetDrawScale(30.0); // debug.SetFillAlpha(0.3); // debug.SetLineThickness(1.0); // debug.SetLineThickness(2); // debug.SetFlags(b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit); // world.SetDebugDraw(debug); // world.DrawDebugData(); addEventListener(Event.ENTER_FRAME,onEnterFrame); } private function joint(from:b2Body,to:b2Body):void{ var jointDef:b2DistanceJointDef = new b2DistanceJointDef(); jointDef.Initialize(from,to,from.GetWorldCenter(),to.GetWorldCenter()); jointDef.collideConnected = false; jointDef.frequencyHz = 0; jointDef.dampingRatio = 1; // jointDef.length = 2.0; jointDef.collideConnected = false; world.CreateJoint(jointDef); // var frontJoint:b2RevoluteJoint = b2RevoluteJoint(world.CreateJoint(jointDef)); } private function joint_center(from:b2Body,to:b2Body):void{ var jointDef:b2DistanceJointDef = new b2DistanceJointDef(); jointDef.Initialize(from,to,from.GetWorldCenter(),to.GetWorldCenter()); jointDef.collideConnected = false; jointDef.frequencyHz = 1000; jointDef.dampingRatio = 1; // jointDef.length = 5.0; jointDef.collideConnected = false; world.CreateJoint(jointDef); } private function onEnterFrame(e:Event):void{ var top_position:Number=501; //y軸の最小値(描画では最大値) var bottom_position:Number = 0; //y軸の最大値 var right_position:Number = 0; //x軸の最大値 var left_position:Number = 501; //x軸の最小値 //all check for(i=0;i<circles.length;i++){ top_position = Math.min(top_position,circles[i].GetPosition().y*30); bottom_position = Math.max(bottom_position,circles[i].GetPosition().y*30); right_position = Math.max(right_position,circles[i].GetPosition().x*30); left_position = Math.min(left_position,circles[i].GetPosition().x*30); } //右目の座標 var r_yy:Number = Math.abs(bottom_position-top_position)/2.5+top_position; var r_xx:Number = Math.abs(right_position-left_position)/1.5+left_position; //左目の座標 var l_yy:Number = Math.abs(bottom_position-top_position)/2.5+top_position; var l_xx:Number = Math.abs(right_position-left_position)/2.5+left_position; //drawing slime.graphics.clear(); slime_eye_left.graphics.clear(); slime_eye_right.graphics.clear(); slime_eye_left_white.graphics.clear(); slime_eye_right_white.graphics.clear(); //body // slime.graphics.lineStyle(3,0x22ff22); slime.graphics.beginFill(0x00ffff,0.5); slime.graphics.moveTo(circles[0].GetPosition().x*30,circles[0].GetPosition().y*30); for(var i:int = 1;i<40;i++){ slime.graphics.lineTo(circles[i].GetPosition().x*30,circles[i].GetPosition().y*30); } slime.graphics.lineTo(circles[0].GetPosition().x*30,circles[0].GetPosition().y*30); graphics.endFill(); canvas.addChild(slime); //right_eye slime_eye_right.graphics.beginFill(0,0.7); slime_eye_right.graphics.drawCircle(r_xx,r_yy,15); slime_eye_right.graphics.endFill(); canvas.addChild(slime_eye_right); //left_eye slime_eye_left.graphics.beginFill(0,0.7); slime_eye_left.graphics.drawCircle(l_xx,l_yy,15); slime_eye_left.graphics.endFill(); canvas.addChild(slime_eye_left); //white eyes //right slime_eye_right_white.graphics.beginFill(0xffffff,0.8); slime_eye_right_white.graphics.drawCircle(r_xx,r_yy,4); slime_eye_right_white.graphics.endFill(); slime_eye_right.addChild(slime_eye_right_white); //left slime_eye_left_white.graphics.beginFill(0xffffff,0.8); slime_eye_left_white.graphics.drawCircle(l_xx,l_yy,4); slime_eye_left_white.graphics.endFill(); slime_eye_left.addChild(slime_eye_left_white); world.Step(1/30, 10 ,20); world.ClearForces(); world.DrawDebugData(); } } } import flash.display.BlendMode; import flash.display.Sprite; import flash.filters.GlowFilter; import Box2D.Collision.Shapes.b2CircleShape; import Box2D.Dynamics.b2Body; import Box2D.Dynamics.b2BodyDef; import Box2D.Dynamics.b2FixtureDef; import Box2D.Dynamics.b2World; class Circle extends Sprite{ private var bodyDef:b2BodyDef = new b2BodyDef(); private var body:b2Body; private var fixtureDef:b2FixtureDef = new b2FixtureDef(); private var circleDef:b2CircleShape = new b2CircleShape(); private var world:b2World; public function Circle(W:b2World,den:Number,fri:Number,res:Number):void{ this.world = W; fixtureDef.shape = circleDef; fixtureDef.density = den; fixtureDef.friction = fri; fixtureDef.restitution = res; } public function Circle_2(position_x:Number,position_y:Number):b2Body{ var r:Number = 1; var color:uint = 0x00ffff; bodyDef.type = b2Body.b2_dynamicBody; add(r,position_x,position_y); return body; } public function Circle_5(position_x:Number,position_y:Number,r:Number,color:uint,type:Boolean):b2Body{ if(type) bodyDef.type = b2Body.b2_dynamicBody; else bodyDef.type = b2Body.b2_staticBody; draw(r,color); add(r,position_x,position_y); return body; } private function draw(r:Number,color:uint):void{ bodyDef.userData = new Sprite(); bodyDef.userData.graphics.lineStyle(3,0xffffff); bodyDef.userData.graphics.drawCircle(0,0,r); filters = [new GlowFilter(color,1,18,18,6,2)]; blendMode = BlendMode.ADD; addChild(bodyDef.userData); } private function add(r:Number,position_x:Number,position_y:Number):void{ circleDef.SetRadius(r/30); bodyDef.position.Set(position_x/30,position_y/30); body = world.CreateBody(bodyDef); body.CreateFixture(fixtureDef); } }
