Etusivu Tutki Apua
Rekisteröidy Kirjaudu sisään
CopperWire
/
eyeofmidas.com
3
0
Fork 0
Tiedostot Ongelmat 0 Pull-pyynnöt 0 Wiki
Puu: 2b24f4e784
Branchit Tagit
eyeofmidas.com
/
htdocs
/
canvas
/
gravitywell
/
all.min.js

all.min.js 24 KB
Historia Raaka

1 
  1. function BotController(){this.decisionDelay=10,this.lastDecision=0,this.init=function(){},this.makeDecisions=function(t){switch(this.decisionDelay<=0&&(this.lastDecision=parseInt(10*Math.random()),this.decisionDelay=10),this.decisionDelay--,this.lastDecision){case 0:t.idle();break;case 1:t.turnRight();break;case 2:t.accelerate();break;case 3:t.turnLeft();break;case 4:t.turnRight();break;case 5:t.shoot(),this.lastDecision=0;break;case 6:t.idle();break;case 7:t.accelerate();break;case 8:t.turnRight();break;case 9:t.shoot(),this.lastDecision=0}},this.getColor=function(){switch(parseInt(4*Math.random())){case 0:return"#DDDD33";case 1:return"#DD33DD";case 2:return"#33DD33";case 3:return"#3333DD"}}}function Bullet(t,i){this.position={x:0,y:0},this.velocity={x:0,y:0},this.acceleration={x:0,y:0},this.angleRadians=0,this.fireRate=5,this.lifetime=100,this.timeToDie=0,this.isDead=!1,this.owner=i,this.damage=1,this.fire=function(t,i,s){this.position.x=t.x+8*Math.cos(s),this.position.y=t.y+8*Math.sin(s),this.velocity.x=i.x,this.velocity.y=i.y,this.angleRadians=s,this.velocity.x+=this.fireRate*Math.cos(s),this.velocity.y+=this.fireRate*Math.sin(s),this.timeToDie=this.lifetime},this.update=function(i){this.timeToDie-=i,this.timeToDie<=0?t.expireBullet(this):(this.position.x+=this.velocity.x*i,this.position.y+=this.velocity.y*i)},this.draw=function(t){this.isDead||(t.fillStyle="#DDDDDD",t.beginPath(),t.arc(this.position.x,this.position.y,2,0,2*Math.PI),t.fill())},this.checkHit=function(t){var s=Math.sqrt(Math.pow(t.position.x-this.position.x,2)+Math.pow(t.position.y-this.position.y,2));t.id!=i&&t.width/2>=s&&(t.takeDamage(this.damage,i),this.isDead=!0)}}function Camera(){this.x=0,this.y=0,this.scale=1,this.viewBox={x:100,y:100,width:600,height:400},this.padding=10,this.init=function(t){this.viewBox.x=t.width/3,this.viewBox.y=t.height/3,this.viewBox.width=t.width-2*this.viewBox.x,this.viewBox.height=t.height-2*this.viewBox.y},this.update=function(t,i,s){this.followPlayer(i,s)},this.handleResize=function(t){this.viewBox.x=t.width/3,this.viewBox.y=t.height/3,this.viewBox.width=t.width-2*this.viewBox.x,this.viewBox.height=t.height-2*this.viewBox.y},this.followPlayer=function(t){var i={x:0,y:0};i.x=this.x+t.position.x,i.y=this.y+t.position.y,i.x<=this.viewBox.x&&(this.x-=i.x-this.viewBox.x),t.position.x+this.x>=this.viewBox.x+this.viewBox.width&&(this.x+=this.viewBox.x+this.viewBox.width-i.x),i.y<=this.viewBox.y&&(this.y-=i.y-this.viewBox.y),t.position.y+this.y>=this.viewBox.y+this.viewBox.height&&(this.y+=this.viewBox.y+this.viewBox.height-i.y)}}function GravityWellGame(){this.game=null,this.system=null,this.player=null,this.ships=[],this.bullets=[],this.systems=[],this.planets=[],this.camera=null,this.background=null,this.farBackground=null,this.state={shipIndex:1,planetIndex:1,solarIndex:1},this.shipIndex=1,this.planetIndex=1,this.solarIndex=1,this.settings={},this.settings.enableMouseControl=!0,this.init=function(t,i){this.game=this,this.system=t,this.camera=new Camera,this.camera.init(i),this.background=new Scenery(this.camera,.1),this.farBackground=new Scenery(this.camera,.05),this.systems.push(new SolarSystem(this.game,{x:-4e4,y:-4e4})),this.systems.push(new SolarSystem(this.game,{x:0,y:-4e4})),this.systems.push(new SolarSystem(this.game,{x:4e4,y:-4e4})),this.systems.push(new SolarSystem(this.game,{x:-4e4,y:0})),this.systems.push(new SolarSystem(this.game,{x:0,y:0})),this.systems.push(new SolarSystem(this.game,{x:4e4,y:0})),this.systems.push(new SolarSystem(this.game,{x:-4e4,y:4e4})),this.systems.push(new SolarSystem(this.game,{x:0,y:4e4})),this.systems.push(new SolarSystem(this.game,{x:4e4,y:4e4})),this.player=new Ship(this.game,new HumanController),this.player.id=this.state.shipIndex++;for(var s in this.systems){(n=this.systems[s]).id=this.state.solarIndex++;var e=n.spawnPlanets(this.state),h=n.spawnShips(this.state);this.planets=this.planets.concat(e),this.ships=this.ships.concat(h)}var a=this.systems[4].ships[0];this.ships.splice(this.ships.indexOf(a),1),this.ships.push(this.player),this.systems[4].ships[0]=this.player;for(var s in this.systems){var n;(n=this.systems[s]).init()}this.ui=new HeadsUpDisplay(this.game,this.camera),this.ui.init(this.player,i)},this.updateDelta=function(t,i){this.update(t);for(var s in this.ships){this.ships[s].update(i)}for(var s in this.systems){this.systems[s].update(i)}for(var s in this.bullets){this.bullets[s].update(i)}this.camera.update(t,this.player,i),this.farBackground.update(t,i),this.background.update(t,i),this.ui.update(i)},this.update=function(t){for(var i in this.ships){(h=this.ships[i]).control()}for(var i in this.bullets){var s=this.bullets[i];for(var e in this.ships){var h=this.ships[e];s.checkHit(h)}}for(var i in this.ships){h=this.ships[i];for(var e in this.ships){var a=this.ships[e];h!=a&&h.checkHit(a)}for(var n in this.systems){this.systems[n].checkCrash(h)}}},this.draw=function(t){this.farBackground.draw(t),this.background.draw(t),t.save(),t.translate(this.camera.x,this.camera.y);for(var i in this.systems){this.systems[i].draw(t)}for(var i in this.ships){this.ships[i].draw(t)}for(var i in this.bullets){this.bullets[i].draw(t)}t.restore(),this.ui.draw(t)},this.spawnBullet=function(t){var i=new Bullet(this.game,t.id);i.fire(t.position,t.velocity,t.targetAngle),this.bullets.push(i)},this.expireBullet=function(t){this.bullets.splice(this.bullets.indexOf(t),1)},this.handleResize=function(t){this.camera.handleResize(t)},this.mouseMove=function(t,i,s){this.settings.enableMouseControl&&this.player.controller.mouseSteer(this.player,this.camera,i,s)},this.mouseDown=function(t,i,s,e){if(this.settings.enableMouseControl)switch(i){case 0:this.player.shoot();break;case 2:this.player.controller.mouseSteer(this.player,this.camera,s,e),this.player.accelerate()}},this.mouseUp=function(t,i,s,e){if(this.settings.enableMouseControl)switch(i){case 2:this.player.idle()}},this.touchStart=function(t,i,s){this.settings.enableMouseControl&&(this.player.controller.mouseSteer(this.player,this.camera,i,s),this.player.accelerate())},this.touchMove=function(t,i,s){this.settings.enableMouseControl&&(this.player.controller.mouseSteer(this.player,this.camera,i,s),this.player.accelerate())},this.touchEnd=function(t,i,s){this.settings.enableMouseControl&&this.player.idle()},this.contextMenu=function(t,i){},this.getNearestPlanet=function(t,i){var s=Number.MAX_SAFE_INTEGER,e=null;for(var h in t.planets){var a=t.planets[h],n=this.calculateDistanceTo(i,a);n<s&&(e=a,s=n)}return e},this.getNearestSystem=function(t,i){var s=Number.MAX_SAFE_INTEGER,e=null;for(var h in t.systems){var a=t.systems[h],n=this.calculateDistanceTo(i,a);n<s&&(e=a,s=n)}return e},this.getNearestShip=function(t,i){var s=Number.MAX_SAFE_INTEGER,e=null;for(var h in t.ships){var a=t.ships[h];if(a!=i){var n=this.calculateDistanceTo(i,a);n<s&&(e=a,s=n)}}return e},this.calculateDistanceTo=function(t,i){return Math.sqrt(Math.pow(t.position.x-i.position.x,2)+Math.pow(t.position.y-i.position.y,2))},this.calculateAngleTo=function(t,i){return Math.atan2(t.position.y-i.position.y,t.position.x-i.position.x)},this.calculateAngleToPlanet=function(t,i,s){return Math.atan2(i.position.y+s.position.y-t.position.y,i.position.x+s.position.x-t.position.x)}}function HeadsUpDisplay(t,i){this.ship=null,this.hudCanvas=null,this.hudContext=null,this.init=function(t,i){this.ship=t,this.canvas=i},this.update=function(t){},this.preRender=function(){null==this.spriteContext&&(this.spriteCanvas=document.createElement("canvas"),this.spriteCanvas.width=this.width,this.spriteCanvas.height=this.height,this.spriteContext=this.spriteCanvas.getContext("2d"),this.spriteContext.fillStyle=this.shipColor,this.spriteContext.strokeStyle=this.shipColor,this.spriteContext.lineWidth=4,this.spriteContext.save(),this.spriteContext.translate(this.width/2,this.height/2),this.spriteContext.beginPath(),this.spriteContext.moveTo(this.width/2,0),this.spriteContext.lineTo(-this.width/2,-this.height/3),this.spriteContext.lineTo(-this.width/2,this.height/3),this.spriteContext.lineTo(this.width/2,0),this.spriteContext.fill(),this.spriteContext.restore())},this.draw=function(i){for(var s in t.planets){var e=t.planets[s];i.fillStyle=e.teamColor,i.beginPath(),i.rect(20*s+20,9,10,8),i.fill()}var h=t.getNearestSystem(t,this.ship),a=t.calculateAngleTo(h,this.ship),n=t.getNearestPlanet(h,this.ship),o=t.calculateAngleTo(n,this.ship),r=t.getNearestShip(t,this.ship),l=t.calculateAngleTo(r,this.ship);i.strokeStyle="#FFFFFF",i.fillStyle="#000000",i.lineWidth=1,i.save(),i.translate(this.canvas.width-205,5),i.beginPath(),i.rect(0,0,200,200),i.fill(),i.stroke(),i.restore(),i.save(),i.translate(this.canvas.width-105,105);for(var s in t.systems){var c={x:(p=t.systems[s]).position.x/600,y:p.position.y/600,radius:p.radius/100};i.strokeStyle="#FFFF00",i.beginPath(),i.arc(c.x,c.y,c.radius,0,2*Math.PI),i.stroke();for(var d in p.planets){var u=(e=p.planets[d]).orbitRadius/600;i.strokeStyle="#0000FF",i.beginPath(),i.arc(c.x,c.y,u,0,2*Math.PI),i.stroke()}}for(var s in t.systems){var p=t.systems[s];for(var d in p.planets){c={x:(e=p.planets[d]).position.x/600,y:e.position.y/600,planet:e.radius/10};i.fillStyle=e.planetColor,i.beginPath(),i.arc(c.x-1,c.y-1,2,0,2*Math.PI),i.fill()}}i.strokeStyle="#FFFFFF",i.beginPath(),i.rect(this.ship.position.x/600-5,this.ship.position.y/600-5,10,10),i.stroke(),i.restore(),i.lineWidth=1,i.save(),i.translate(this.canvas.width-105,this.canvas.height-105),i.strokeStyle="#FFFFFF",i.fillStyle="#33AA33",i.beginPath(),i.arc(0,0,100,0,2*Math.PI),i.fill(),i.stroke(),i.fillStyle="#000000",i.beginPath(),i.arc(0,0,90,0,2*Math.PI),i.fill(),i.stroke(),i.save(),i.translate(-40,-40),i.scale(4,4),this.ship.preRender(i,this.ship.targetAngle),i.restore(),i.save(),i.rotate(a),i.translate(75,0),i.strokeStyle="#FFFF00",i.beginPath(),i.arc(0,0,h.radius/40,0,2*Math.PI),i.stroke(),i.restore(),i.save(),i.rotate(o),i.translate(78,0),i.strokeStyle=n.planetColor,i.beginPath(),i.arc(0,0,n.radius/20,0,2*Math.PI),i.stroke(),i.restore(),i.save(),i.rotate(l),i.translate(70,0),i.scale(.5,.5),r.preRender(i,r.angleRadians),i.restore(),i.restore()}}function HumanController(){this.keyboard=null,this.init=function(){this.keyboard=new KeyboardInput,this.keyboard.attach()},this.makeDecisions=function(t){(this.keyboard.isDown(Keys.Up)||this.keyboard.isDown(Keys.W))&&t.accelerate(),this.keyboard.isReleased(Keys.Up)&&t.idle(),this.keyboard.isReleased(Keys.W)&&t.idle(),(this.keyboard.isPressed(Keys.Down)||this.keyboard.isPressed(Keys.S))&&t.shoot(),(this.keyboard.isDown(Keys.Left)||this.keyboard.isDown(Keys.A))&&t.turnLeft(),(this.keyboard.isDown(Keys.Right)||this.keyboard.isDown(Keys.D))&&t.turnRight(),this.keyboard.isPressed(Keys.Space)&&t.shoot()},this.getColor=function(){return"#DD3333"},this.mouseSteer=function(t,i,s,e){if(null==t.touching){var h=Math.atan2(e-(t.position.y+i.y),s-(t.position.x+i.x));t.targetAngle=h}}}function KeyboardInput(){var t=[],i=[],s=[];this.attach=function(){for(var e=0;e<256;e++)t[e]=!1,i[e]=!1,s[e]=!1;window.addEventListener("keydown",function(s){t[s.keyCode]||(i[s.keyCode]=!0),t[s.keyCode]=!0}),window.addEventListener("keyup",function(i){t[i.keyCode]&&(s[i.keyCode]=!0),t[i.keyCode]=!1})},this.isPressed=function(s){var e=i[s]&&t[s];return i[s]=!1,e},this.isReleased=function(i){var e=s[i]&&!t[i];return s[i]=!1,e},this.isDown=function(i){return t[i]}}function Planet(t,i){this.id=0,this.position={x:800,y:0},this.velocity={x:0,y:0},this.angleRadians=0,this.fireRate=5,this.lifetime=100,this.timeToDie=0,this.isDead=!1,this.planetColor="#AAAAAA",this.radius=100,this.orbitRadius=2e3,this.angleRadians=0,this.orbitSpeed=1,this.rotationRadians=0,this.rotationSpeed=.001,this.system=null,this.mass=1e3,this.teamId=0,this.teamColor="#DDDDDD",this.type="barren",this.init=function(t){this.system=t,this.orbitRadius=2e3*(i+1),this.angleRadians=2*Math.PI*Math.random(),this.position.x=t.position.x+this.orbitRadius*Math.cos(this.angleRadians),this.position.y=t.position.y+this.orbitRadius*Math.sin(this.angleRadians),this.radius=100,this.mass=1e3,this.type="barren",i>2&&i<6&&(this.planetColor="#33DD33",this.radius=140,this.mass=1400,this.type="habitable"),this.rotationRadians=2*Math.PI*Math.random(),this.orbitSpeed=1e-5},this.update=function(t){this.angleRadians+=this.orbitSpeed,this.rotationRadians+=this.rotationSpeed,this.position.x=this.system.position.x+this.orbitRadius*Math.cos(this.angleRadians),this.position.y=this.system.position.y+this.orbitRadius*Math.sin(this.angleRadians)},this.draw=function(t){var i={x:0,y:0};i.x=this.system.position.x,i.y=this.system.position.y,t.save(),t.fillStyle="#000000",t.translate(this.position.x,this.position.y),t.beginPath(),t.arc(0,0,this.radius,0,2*Math.PI),t.fill(),t.restore(),t.strokeStyle="#3333DD",t.lineWidth=1,t.save(),t.translate(this.system.position.x,this.system.position.y),t.beginPath(),t.arc(0,0,this.orbitRadius,0,2*Math.PI),t.stroke(),t.restore(),t.save(),t.strokeStyle=this.planetColor,t.lineWidth=2,t.translate(this.position.x,this.position.y),t.rotate(this.rotationRadians),t.beginPath(),t.arc(0,0,this.radius,0,2*Math.PI),t.stroke(),t.restore(),t.save(),t.translate(this.position.x,this.position.y),t.beginPath(),t.fillStyle=this.teamColor,t.rect(-8,-6,16,12),t.fill(),t.font="16px sans-serif",t.textAlign="center",t.fillStyle="#DDDDDD",t.strokeStyle="#333333",t.lineWidth=2;t.measureText("Planet "+this.id).width;t.fillText("Planet "+this.id,0,0),t.restore()},this.addGravity=function(i){var s=t.calculateAngleTo(this,i),e=t.calculateDistanceTo(this,i);i.acceleration.x+=system.formatFloat(this.mass*(1/Math.pow(e,2))*Math.cos(s)),i.acceleration.y+=system.formatFloat(this.mass*(1/Math.pow(e,2))*Math.sin(s))},this.claim=function(t){this.teamId=t.teamId,this.teamColor=t.shipColor}}function Scenery(t,i){this.position={x:0,y:0},this.width=786,this.height=786,this.spriteCanvas=null,this.spriteContext=null,this.canvasWidth=128,this.canvasHeight=128,this.debug=!1,this.parallaxDepth=i,this.update=function(i){this.canvasWidth=i.width,this.canvasHeight=i.height;var s={x:0,y:0};s.x=t.x*this.parallaxDepth+this.position.x,s.y=t.y*this.parallaxDepth+this.position.y,s.x<-this.width&&(this.position.x+=this.width),s.x>0&&(this.position.x-=this.width),s.y<-this.height&&(this.position.y+=this.height),s.y>0&&(this.position.y-=this.height)},this.preRender=function(){if(null==this.spriteContext){this.spriteCanvas=document.createElement("canvas"),this.spriteCanvas.width=this.width,this.spriteCanvas.height=this.height,this.spriteContext=this.spriteCanvas.getContext("2d"),this.spriteContext.fillStyle="#DDDDDD";for(var t=parseInt(Math.sqrt(this.width)),i=0;i<t;i++){var s={x:parseInt(this.width*Math.random()),y:parseInt(this.height*Math.random())};this.spriteContext.beginPath(),this.spriteContext.arc(s.x,s.y,parseInt(20*this.parallaxDepth*Math.random()+1),0,2*Math.PI),this.spriteContext.fill()}}},this.draw=function(i){this.preRender();var s={x:0,y:0};s.x=t.x*this.parallaxDepth+this.position.x,s.y=t.y*this.parallaxDepth+this.position.y;for(var e=0;e<this.canvasWidth/this.width+1;e++)for(var h=0;h<this.canvasHeight/this.height+1;h++)i.drawImage(this.spriteCanvas,s.x+e*this.width,s.y+h*this.height);this.debug&&(i.strokeStyle="#33DD33",i.lineWidth=3,i.beginPath(),i.rect(s.x,s.y,this.width,this.height),i.stroke())}}function Ship(t,i){this.id=0,this.position={x:400,y:300},this.velocity={x:.1,y:.1},this.controller=i,this.acceleration={x:0,y:0,speed:.05},this.width=20,this.height=20,this.maxSpeed=16,this.turnRate=Math.PI/64,this.moveToTarget=!1,this.targetDestination={x:400,y:400},this.targetAngle=0,this.angleRadians=0,this.shipColor="#DD3333",this.playerName="Player",this.spriteCanvas=null,this.spriteContext=null,this.isAccelerating=!1,this.home=null,this.spawn=null,this.isDead=!1,this.touching=null,this.lastHit=0,this.teamId=0,this.health=5,this.init=function(t,i){this.teamId=i.teamId,this.controller.init(),this.shipColor=t,this.home=i,this.respawn()},this.update=function(i){if(!this.isDead)if(this.health<=0)this.die();else{if(this.acceleration.x=0,this.acceleration.y=0,this.isAccelerating&&(this.angleRadians=this.targetAngle,this.acceleration.x=this.acceleration.speed*Math.cos(this.angleRadians),this.acceleration.y=this.acceleration.speed*Math.sin(this.angleRadians),null!=this.touching)){this.touching=null;this.velocity.x=1.5*Math.cos(this.angleRadians),this.velocity.y=1.5*Math.sin(this.angleRadians)}var s=t.getNearestSystem(t,this);if(null!=s){s.addGravity(this);for(var e in s.planets){s.planets[e].addGravity(this)}}else console.error("Lost in space");if(this.velocity.x+=this.acceleration.x,this.velocity.y+=this.acceleration.y,this.velocity.x=Math.max(Math.min(this.velocity.x,this.maxSpeed),-this.maxSpeed),this.velocity.y=Math.max(Math.min(this.velocity.y,this.maxSpeed),-this.maxSpeed),null!=this.touching){var h=t.calculateAngleTo(this.touching,this)+Math.PI,a=t.calculateDistanceTo(this.touching,this),n=0;if(this.touching.radius+this.width/2>a){this.angleRadians=h,this.targetAngle=h,n=this.touching.radius-a;var o={x:0,y:0};o.x=(n+this.width/2)*Math.cos(h),o.y=(n+this.height/2)*Math.sin(h),this.position.x+=o.x,this.position.y+=o.y,this.velocity.x=0,this.velocity.y=0,this.touching.claim(this)}}else this.position.x+=this.velocity.x*i,this.position.y+=this.velocity.y*i}},this.control=function(){this.controller.makeDecisions(this)},this.respawn=function(){if(null==this.spawn||this.spawn.teamId!=this.teamId){var i=[];for(var s in t.planets){var e=t.planets[s];e.teamId==this.teamId&&"habitable"==e.type&&i.push(e)}this.spawn=i[parseInt(i.length*Math.random())]}var h=2*Math.PI*Math.random();this.position.x=this.spawn.position.x+this.spawn.radius*Math.cos(h),this.position.y=this.spawn.position.y+this.spawn.radius*Math.sin(h),this.health=5,this.angleRadians=h,this.isAccelerating=!1,this.isDead=!1},this.die=function(){if(!this.isDead){this.velocity.x/=4,this.velocity.y/=4;for(var i=0;i<5;i++)this.targetAngle=2*Math.PI*Math.random(),t.spawnBullet(this);var s=this;setTimeout(function(){s.respawn()},3e3),this.isDead=!0}},this.idle=function(){this.isAccelerating=!1},this.toggleAccelerate=function(){this.isAccelerating?this.idle():this.accelerate()},this.accelerate=function(){this.isAccelerating=!0},this.shoot=function(){this.isDead||t.spawnBullet(this)},this.turnLeft=function(){null==this.touching&&(this.targetAngle-=this.turnRate)},this.turnRight=function(){null==this.touching&&(this.targetAngle+=this.turnRate)},this.preRender=function(t,i){null==i&&(i=0),t.fillStyle=this.shipColor,t.strokeStyle=this.shipColor,t.lineWidth=4,t.save(),t.translate(this.width/2,this.height/2),t.rotate(i),t.beginPath(),t.moveTo(this.width/2,0),t.lineTo(-this.width/2,-this.height/3),t.lineTo(-this.width/2,this.height/3),t.lineTo(this.width/2,0),t.fill(),t.restore()},this.draw=function(t){if(null==this.spriteContext&&(this.spriteCanvas=document.createElement("canvas"),this.spriteCanvas.width=this.width,this.spriteCanvas.height=this.height,this.spriteContext=this.spriteCanvas.getContext("2d"),this.preRender(this.spriteContext)),!this.isDead){var i={x:0,y:0};i.x=this.position.x,i.y=this.position.y,t.save(),t.translate(i.x,i.y),t.rotate(this.targetAngle),this.isAccelerating&&(t.fillStyle="#7777FF",t.beginPath(),t.moveTo(-this.width-5,0),t.lineTo(-this.width/2,3),t.lineTo(-this.width/2,-3),t.lineTo(-this.width-5,0),t.fill()),t.drawImage(this.spriteCanvas,0,0,this.spriteCanvas.width,this.spriteCanvas.height,-this.spriteCanvas.width/2,-this.spriteCanvas.height/2,this.width,this.height),t.strokeStyle="#00FF00",this.isTakingDamage&&(t.strokeStyle="#FF0000",this.isTakingDamage=!1),t.restore(),t.save(),t.translate(i.x,i.y),t.font="16px sans-serif",t.textAlign="center",t.fillStyle="#DDDDDD",t.strokeStyle="#333333",t.lineWidth=2;t.measureText("Player "+this.id).width;t.fillText("Player "+this.id,0,0),t.restore()}},this.takeDamage=function(t,i){this.isTakingDamage=!0,this.health-=t,this.lastHit=i},this.checkHit=function(t){var i=Math.sqrt(Math.pow(t.position.x-this.position.x,2)+Math.pow(t.position.y-this.position.y,2));this.id!=t.id&&t.width/2>=i&&(this.takeDamage(1),this.lastHit=t.id)}}function SolarSystem(t,i){this.id=0,this.position=i,this.planets=[],this.ships=[],this.systemColor=null,this.radius=400,this.mass=5e4,this.teamId=0,this.init=function(){this.teamId=this.id,this.systemColor=this.getColor(this.teamId);for(var t in this.planets){this.planets[t].init(this)}this.planets[parseInt(this.planets.length*Math.random())];for(var t in this.ships){this.ships[t].init(this.systemColor,this)}},this.getColor=function(t){switch(t){case 1:return"crimson";case 2:return"orangered";case 3:return"gold";case 4:return"limegreen";case 5:return"dodgerblue";case 6:return"aqua";case 7:return"darkmagenta";case 8:return"ghostwhite";case 9:return"orchid"}},this.spawnPlanets=function(i){for(var s=1;s<=7;s++){if(parseInt(8*Math.random())>4||4==s){var e=new Planet(t,s);e.id=i.planetIndex++,4==s&&(e.teamId=this.id,e.teamColor=this.getColor(this.id)),this.planets.push(e)}}return this.planets},this.spawnShips=function(i){for(var s=0;s<4;s++){var e=new Ship(t,new BotController);e.id=i.shipIndex++,this.ships.push(e)}return this.ships},this.update=function(t){for(var i in this.planets){this.planets[i].update(t)}},this.draw=function(t){t.fillStyle="#000000",t.strokeStyle="#DDDD33",t.lineWidth=3,t.save(),t.translate(this.position.x,this.position.y),t.beginPath(),t.arc(0,0,this.radius,0,2*Math.PI),t.fill(),t.stroke(),t.restore();for(var i in this.planets){this.planets[i].draw(t)}t.save(),t.translate(this.position.x,this.position.y),t.font="16px sans-serif",t.textAlign="center",t.fillStyle="#DDDDDD",t.strokeStyle="#333333",t.lineWidth=2;t.measureText("System "+this.id).width;t.fillText("System "+this.id,0,0),t.restore()},this.addGravity=function(i){var s=t.calculateAngleTo(this,i),e=t.calculateDistanceTo(this,i);i.acceleration.x+=system.formatFloat(this.mass*(1/Math.pow(e,2))*Math.cos(s)),i.acceleration.y+=system.formatFloat(this.mass*(1/Math.pow(e,2))*Math.sin(s))},this.checkCrash=function(i){if(!i.isDead){var s=t.calculateDistanceTo(i,this);if(this.radius+i.width/2>s)return i.touching=this,void i.die();for(var e in this.planets){var h=this.planets[e];i.touching==h&&(i.touching=null);s=t.calculateDistanceTo(i,h);if(h.radius+i.width/2>s&&(i.touching=h,Math.abs(i.velocity.x)+Math.abs(i.velocity.y)>3))return void i.die()}}}}function System(){var t=null,i=null,s={},e=null,h=null;this.game=null;var a="#D3D3D3",n=0;this.create=function(s,e,n){(h=this).game=e,a=n||a,t=document.getElementById(s),i=document.createElement("canvas"),t.appendChild(i),window.addEventListener("resize",h.handleResize),i.addEventListener("touchmove",h.handleTouchMove),i.addEventListener("mousemove",h.handleMouseMove),i.addEventListener("mousedown",h.handleMouseDown),i.addEventListener("contextmenu",h.handleContextMenu),i.addEventListener("touchstart",h.handleTouchStart),i.addEventListener("mouseup",h.handleMouseUp),i.addEventListener("touchend",h.handleTouchEnd),this.game.init(h,i),h.handleResize(null),window.requestAnimationFrame(h.handleRequestAnimationFrame)},this.getCanvasSize=function(){return{width:i.width+0,height:i.height+0}},this.preRender=function(){null==this.backgroundContext&&(this.backgroundCanvas=document.createElement("canvas"),this.backgroundCanvas.width=i.width,this.backgroundCanvas.height=i.height,this.backgroundContext=this.backgroundCanvas.getContext("2d"),this.backgroundContext.fillStyle=a,this.backgroundContext.fillRect(0,0,this.backgroundCanvas.width,this.backgroundCanvas.height))},this.handleResize=function(a){i.width=t.offsetWidth,i.height=t.offsetHeight,(e=i.getContext("2d",s)).translate(.5,.5),h.game.handleResize(i)},this.handleRequestAnimationFrame=function(t){var s=(new Date).getTime(),o=(s-n)/(1e3/60);o>100&&(o=1e3/60),h.game.updateDelta(i,o),n=s,e.fillStyle=a,e.fillRect(0,0,i.width,i.height),h.game.draw(e),window.requestAnimationFrame(h.handleRequestAnimationFrame)},this.handleMouseMove=function(t){h.game.mouseMove(i,t.offsetX,t.offsetY)},this.handleMouseDown=function(t){h.game.mouseDown(i,t.button,t.offsetX,t.offsetY)},this.handleMouseUp=function(t){h.game.mouseUp(i,t.button,t.offsetX,t.offsetY)},this.handleTouchStart=function(t){h.game.touchStart(i,t.touches[0].clientX,t.touches[0].clientY)},this.handleTouchMove=function(t){h.game.touchMove(i,t.touches[0].clientX,t.touches[0].clientY)},this.handleTouchEnd=function(t){h.game.touchEnd(i,t.offsetX,t.offsetY)},this.handleContextMenu=function(t){return h.game.contextMenu(i,t),t.preventDefault(),!1},this.handleServerMessage=function(t){h.game.receiveMessage(t)},this.formatFloat=function(t){return Number.isNaN(parseFloat(t))?0:parseFloat(t.toFixed(4))}}window.Keys={Left:37,Up:38,Right:39,Down:40,W:87,A:65,S:83,D:68,Space:32};
    2.