littlejs.min.js

let showWatermark=0,debugKey="";const debug=0,debugOverlay=0,debugPhysics=0,debugParticles=0,debugRaycast=0,debugGamepads=0,debugMedals=0;function ASSERT(){}function debugInit(){}function debugUpdate(){}function debugRender(){}function debugRect(){}function debugPoly(){}function debugCircle(){}function debugPoint(){}function debugLine(){}function debugOverlap(){}function debugText(){}function debugClear(){}function debugScreenshot(){}function debugSaveCanvas(){}function debugSaveText(){}function debugSaveDataURL(){}const PI=Math.PI;function abs(a){return Math.abs(a)}function min(a,b){return Math.min(a,b)}function max(a,b){return Math.max(a,b)}function sign(a){return Math.sign(a)}function mod(a,b=1){return(a%b+b)%b}function clamp(a,b=0,c=1){return a<b?b:a>c?c:a}function percent(a,b,c){return(c-=b)?clamp((a-b)/c):0}function lerp(a,b,c){return b+clamp(a)*(c-b)}function distanceWrap(a,b,c=1){a=(a-b)%c;return 2*a%c-a}function lerpWrap(a,b,c,d=1){return c+clamp(a)*distanceWrap(b,c,d)}function distanceAngle(a,b){return distanceWrap(a,b,2*PI)}function lerpAngle(a,b,c){return lerpWrap(a,b,c,2*PI)}function smoothStep(a){return a*a*(3-2*a)}function nearestPowerOfTwo(a){return 2**Math.ceil(Math.log2(a))}function isOverlapping(a,b,c,d=vec2()){return 2*abs(a.x-c.x)<b.x+d.x&&2*abs(a.y-c.y)<b.y+d.y}function isIntersecting(a,b,c,d){c=c.subtract(d.scale(.5));d=c.add(d);b=b.subtract(a);c=a.subtract(c);d=a.subtract(d);a=[-b.x,b.x,-b.y,b.y];b=[c.x,-d.x,c.y,-d.y];c=0;d=1;for(let e=4;e--;)if(a[e]){const f=b[e]/a[e];if(0>a[e]){if(f>d)return!1;c=max(f,c)}else{if(f<c)return!1;d=min(f,d)}}else if(0>b[e])return!1;return!0}function wave(a=1,b=1,c=time){return b/2*(1-Math.cos(c*a*2*PI))}function formatTime(a){return(a/60|0)+":"+(10>a%60?"0":"")+(a%60|0)}function rand(a=1,b=0){return b+Math.random()*(a-b)}function randInt(a,b=0){return Math.floor(rand(a,b))}function randSign(){return 2*randInt(2)-1}function randVector(a=1){return(new Vector2).setAngle(rand(2*PI),a)}function randInCircle(a=1,b=0){return 0<a?randVector(a*rand(b/a,1)**.5):new Vector2}function randColor(a=new Color,b=new Color(0,0,0,1),c=!1){return c?a.lerp(b,rand()):new Color(rand(a.r,b.r),rand(a.g,b.g),rand(a.b,b.b),rand(a.a,b.a))}class RandomGenerator{constructor(a){this.seed=a}float(a=1,b=0){this.seed^=this.seed<<13;this.seed^=this.seed>>>17;this.seed^=this.seed<<5;return b+(a-b)*abs(this.seed%1e8)/1e8}int(a,b=0){return Math.floor(this.float(a,b))}sign(){return.5<this.float()?1:-1}}function vec2(a=0,b){return"number"==typeof a?new Vector2(a,void 0==b?a:b):new Vector2(a.x,a.y)}function isVector2(a){return a instanceof Vector2}class Vector2{constructor(a=0,b=0){this.x=a;this.y=b;ASSERT(this.isValid())}set(a=0,b=0){this.x=a;this.y=b;ASSERT(this.isValid());return this}copy(){return new Vector2(this.x,this.y)}add(a){ASSERT(isVector2(a));return new Vector2(this.x+a.x,this.y+a.y)}subtract(a){ASSERT(isVector2(a));return new Vector2(this.x-a.x,this.y-a.y)}multiply(a){ASSERT(isVector2(a));return new Vector2(this.x*a.x,this.y*a.y)}divide(a){ASSERT(isVector2(a));return new Vector2(this.x/a.x,this.y/a.y)}scale(a){ASSERT(!isVector2(a));return new Vector2(this.x*a,this.y*a)}length(){return this.lengthSquared()**.5}lengthSquared(){return this.x**2+this.y**2}distance(a){ASSERT(isVector2(a));return this.distanceSquared(a)**.5}distanceSquared(a){ASSERT(isVector2(a));return(this.x-a.x)**2+(this.y-a.y)**2}normalize(a=1){const b=this.length();return b?this.scale(a/b):new Vector2(0,a)}clampLength(a=1){const b=this.length();return b>a?this.scale(a/b):this}dot(a){ASSERT(isVector2(a));return this.x*a.x+this.y*a.y}cross(a){ASSERT(isVector2(a));return this.x*a.y-this.y*a.x}angle(){return Math.atan2(this.x,this.y)}setAngle(a=0,b=1){this.x=b*Math.sin(a);this.y=b*Math.cos(a);return this}rotate(a){const b=Math.cos(a);a=Math.sin(a);return new Vector2(this.x*b+this.y*a,this.x*a+this.y*b)}setDirection(a,b=1){a=mod(a,4);ASSERT(0==a||1==a||2==a||3==a);return vec2(a%2?a-1?-b:b:0,a%2?0:a?-b:b)}direction(){return abs(this.x)>abs(this.y)?0>this.x?3:1:0>this.y?2:0}invert(){return new Vector2(this.y,-this.x)}floor(){return new Vector2(Math.floor(this.x),Math.floor(this.y))}area(){return abs(this.x*this.y)}lerp(a,b){ASSERT(isVector2(a));return this.add(a.subtract(this).scale(clamp(b)))}arrayCheck(a){ASSERT(isVector2(a));return 0<=this.x&&0<=this.y&&this.x<a.x&&this.y<a.y}toString(a=3){if(debug)return`(${(0>this.x?"":" ")+this.x.toFixed(a)},${(0>this.y?"":" ")+this.y.toFixed(a)} )`}isValid(){return"number"==typeof this.x&&!isNaN(this.x)&&"number"==typeof this.y&&!isNaN(this.y)}}function rgb(a,b,c,d){return new Color(a,b,c,d)}function hsl(a,b,c,d){return(new Color).setHSLA(a,b,c,d)}function isColor(a){return a instanceof Color}class Color{constructor(a=1,b=1,c=1,d=1){this.r=a;this.g=b;this.b=c;this.a=d;ASSERT(this.isValid())}set(a=1,b=1,c=1,d=1){this.r=a;this.g=b;this.b=c;this.a=d;ASSERT(this.isValid());return this}copy(){return new Color(this.r,this.g,this.b,this.a)}add(a){ASSERT(isColor(a));return new Color(this.r+a.r,this.g+a.g,this.b+a.b,this.a+a.a)}subtract(a){ASSERT(isColor(a));return new Color(this.r-a.r,this.g-a.g,this.b-a.b,this.a-a.a)}multiply(a){ASSERT(isColor(a));return new Color(this.r*a.r,this.g*a.g,this.b*a.b,this.a*a.a)}divide(a){ASSERT(isColor(a));return new Color(this.r/a.r,this.g/a.g,this.b/a.b,this.a/a.a)}scale(a,b=a){return new Color(this.r*a,this.g*a,this.b*a,this.a*b)}clamp(){return new Color(clamp(this.r),clamp(this.g),clamp(this.b),clamp(this.a))}lerp(a,b){ASSERT(isColor(a));return this.add(a.subtract(this).scale(clamp(b)))}setHSLA(a=0,b=0,c=1,d=1){a=mod(a,1);b=clamp(b);c=clamp(c);b=.5>c?c*(1+b):c+b-c*b;c=2*c-b;const e=(f,g,k)=>1>6*(k=mod(k,1))?f+6*(g-f)*k:1>2*k?g:2>3*k?f+(g-f)*(4-6*k):f;this.r=e(c,b,a+1/3);this.g=e(c,b,a);this.b=e(c,b,a-1/3);this.a=d;ASSERT(this.isValid());return this}HSLA(){const a=clamp(this.r),b=clamp(this.g),c=clamp(this.b),d=clamp(this.a),e=Math.max(a,b,c),f=Math.min(a,b,c),g=(e+f)/2;let k=0,h=0;if(e!=f){let m=e-f;h=.5<g?m/(2-e-f):m/(e+f);a==e?k=(b-c)/m+(b<c?6:0):b==e?k=(c-a)/m+2:c==e&&(k=(a-b)/m+4)}return[k/6,h,g,d]}mutate(a=.05,b=0){return new Color(this.r+rand(a,-a),this.g+rand(a,-a),this.b+rand(a,-a),this.a+rand(b,-b)).clamp()}toString(a=!0){const b=c=>(16>(c=255*clamp(c)|0)?"0":"")+c.toString(16);return"#"+b(this.r)+b(this.g)+b(this.b)+(a?b(this.a):"")}setHex(a){ASSERT("string"==typeof a&&"#"==a[0]);ASSERT([4,5,7,9].includes(a.length),"Invalid hex");6>a.length?(this.r=clamp(parseInt(a[1],16)/15),this.g=clamp(parseInt(a[2],16)/15),this.b=clamp(parseInt(a[3],16)/15),this.a=5==a.length?clamp(parseInt(a[4],16)/15):1):(this.r=clamp(parseInt(a.slice(1,3),16)/255),this.g=clamp(parseInt(a.slice(3,5),16)/255),this.b=clamp(parseInt(a.slice(5,7),16)/255),this.a=9==a.length?clamp(parseInt(a.slice(7,9),16)/255):1);ASSERT(this.isValid());return this}rgbaInt(){const a=255*clamp(this.r)|0,b=255*clamp(this.g)<<8,c=255*clamp(this.b)<<16,d=255*clamp(this.a)<<24;return a+b+c+d}isValid(){return"number"==typeof this.r&&!isNaN(this.r)&&"number"==typeof this.g&&!isNaN(this.g)&&"number"==typeof this.b&&!isNaN(this.b)&&"number"==typeof this.a&&!isNaN(this.a)}}const WHITE=rgb(),BLACK=rgb(0,0,0),GRAY=rgb(.5,.5,.5),RED=rgb(1,0,0),ORANGE=rgb(1,.5,0),YELLOW=rgb(1,1,0),GREEN=rgb(0,1,0),CYAN=rgb(0,1,1),BLUE=rgb(0,0,1),PURPLE=rgb(.5,0,1),MAGENTA=rgb(1,0,1);class Timer{constructor(a){this.time=void 0==a?void 0:time+a;this.setTime=a}set(a=0){this.time=time+a;this.setTime=a}unset(){this.time=void 0}isSet(){return void 0!=this.time}active(){return time<this.time}elapsed(){return time>=this.time}get(){return this.isSet()?time-this.time:0}getPercent(){return this.isSet()?1-percent(this.time-time,0,this.setTime):0}toString(){if(debug)return this.isSet()?Math.abs(this.get())+" seconds "+(0>this.get()?"before":"after"):"unset"}valueOf(){return this.get()}}let cameraPos=vec2(),cameraScale=32,canvasMaxSize=vec2(1920,1080),canvasFixedSize=vec2(),canvasPixelated=!0,tilesPixelated=!0,fontDefault="arial",showSplashScreen=!1,headlessMode=!1,glEnable=!0,glOverlay=!0,tileSizeDefault=vec2(16),tileFixBleedScale=0,enablePhysicsSolver=!0,objectDefaultMass=1,objectDefaultDamping=1,objectDefaultAngleDamping=1,objectDefaultElasticity=0,objectDefaultFriction=.8,objectMaxSpeed=1,gravity=0,particleEmitRateScale=1,gamepadsEnable=!0,gamepadDirectionEmulateStick=!0,inputWASDEmulateDirection=!0,touchInputEnable=!0,touchGamepadEnable=!1,touchGamepadAnalog=!0,touchGamepadSize=99,touchGamepadAlpha=.3,vibrateEnable=!0,soundEnable=!0,soundVolume=.3,soundDefaultRange=40,soundDefaultTaper=.7,medalDisplayTime=5,medalDisplaySlideTime=.5,medalDisplaySize=vec2(640,80),medalDisplayIconSize=50,medalsPreventUnlock=!1;function setCameraPos(a){cameraPos=a}function setCameraScale(a){cameraScale=a}function setCanvasMaxSize(a){canvasMaxSize=a}function setCanvasFixedSize(a){canvasFixedSize=a}function setCanvasPixelated(a){canvasPixelated=a}function setTilesPixelated(a){tilesPixelated=a}function setFontDefault(a){fontDefault=a}function setShowSplashScreen(a){showSplashScreen=a}function setHeadlessMode(a){headlessMode=a}function setGlEnable(a){glEnable=a}function setGlOverlay(a){glOverlay=a}function setTileSizeDefault(a){tileSizeDefault=a}function setTileFixBleedScale(a){tileFixBleedScale=a}function setEnablePhysicsSolver(a){enablePhysicsSolver=a}function setObjectDefaultMass(a){objectDefaultMass=a}function setObjectDefaultDamping(a){objectDefaultDamping=a}function setObjectDefaultAngleDamping(a){objectDefaultAngleDamping=a}function setObjectDefaultElasticity(a){objectDefaultElasticity=a}function setObjectDefaultFriction(a){objectDefaultFriction=a}function setObjectMaxSpeed(a){objectMaxSpeed=a}function setGravity(a){gravity=a}function setParticleEmitRateScale(a){particleEmitRateScale=a}function setGamepadsEnable(a){gamepadsEnable=a}function setGamepadDirectionEmulateStick(a){gamepadDirectionEmulateStick=a}function setInputWASDEmulateDirection(a){inputWASDEmulateDirection=a}function setTouchInputEnable(a){touchInputEnable=a}function setTouchGamepadEnable(a){touchGamepadEnable=a}function setTouchGamepadAnalog(a){touchGamepadAnalog=a}function setTouchGamepadSize(a){touchGamepadSize=a}function setTouchGamepadAlpha(a){touchGamepadAlpha=a}function setVibrateEnable(a){vibrateEnable=a}function setSoundEnable(a){soundEnable=a}function setSoundVolume(a){soundVolume=a;soundEnable&&!headlessMode&&audioGainNode&&(audioGainNode.gain.value=a)}function setSoundDefaultRange(a){soundDefaultRange=a}function setSoundDefaultTaper(a){soundDefaultTaper=a}function setMedalDisplayTime(a){medalDisplayTime=a}function setMedalDisplaySlideTime(a){medalDisplaySlideTime=a}function setMedalDisplaySize(a){medalDisplaySize=a}function setMedalDisplayIconSize(a){medalDisplayIconSize=a}function setMedalsPreventUnlock(a){medalsPreventUnlock=a}function setShowWatermark(a){showWatermark=a}function setDebugKey(a){debugKey=a}class EngineObject{constructor(a=vec2(),b=vec2(1),c,d=0,e=new Color,f=0){ASSERT(isVector2(a)&&isVector2(b),"ensure pos and size are vec2s");ASSERT("number"!==typeof c||!c,"old style tile setup");this.pos=a.copy();this.size=b;this.drawSize=void 0;this.tileInfo=c;this.angle=d;this.color=e;this.additiveColor=void 0;this.mirror=!1;this.mass=objectDefaultMass;this.damping=objectDefaultDamping;this.angleDamping=objectDefaultAngleDamping;this.elasticity=objectDefaultElasticity;this.friction=objectDefaultFriction;this.gravityScale=1;this.renderOrder=f;this.velocity=vec2();this.angleVelocity=0;this.spawnTime=time;this.children=[];this.clampSpeedLinear=!0;this.parent=void 0;this.localPos=vec2();this.localAngle=0;this.collideRaycast=this.isSolid=this.collideSolidObjects=this.collideTiles=!1;engineObjects.push(this)}updateTransforms(){const a=this.parent;if(a){const b=a.getMirrorSign();this.pos=this.localPos.multiply(vec2(b,1)).rotate(-a.angle).add(a.pos);this.angle=b*this.localAngle+a.angle}for(const b of this.children)b.updateTransforms()}update(){if(!this.parent){if(this.clampSpeedLinear)this.velocity.x=clamp(this.velocity.x,-objectMaxSpeed,objectMaxSpeed),this.velocity.y=clamp(this.velocity.y,-objectMaxSpeed,objectMaxSpeed);else{var a=this.velocity.lengthSquared();a>objectMaxSpeed*objectMaxSpeed&&(a=objectMaxSpeed/a**.5,this.velocity.x*=a,this.velocity.y*=a)}a=this.pos.copy();this.velocity.x*=this.damping;this.velocity.y*=this.damping;this.mass&&(this.velocity.y+=gravity*this.gravityScale);this.pos.x+=this.velocity.x;this.pos.y+=this.velocity.y;this.angle+=this.angleVelocity*=this.angleDamping;ASSERT(0<=this.angleDamping&&1>=this.angleDamping);ASSERT(0<=this.damping&&1>=this.damping);if(enablePhysicsSolver&&this.mass){var b=0>this.velocity.y;if(this.groundObject){var c=this.groundObject.velocity?this.groundObject.velocity.x:0;this.velocity.x=c+(this.velocity.x-c)*this.friction;this.groundObject=0}if(this.collideSolidObjects)for(var d of engineObjectsCollide){if(!this.isSolid&&!d.isSolid||d.destroyed||d.parent||d==this)continue;if(!isOverlapping(this.pos,this.size,d.pos,d.size))continue;c=this.collideWithObject(d);var e=d.collideWithObject(this);if(!c||!e)continue;if(isOverlapping(a,this.size,d.pos,d.size)){c=a.subtract(d.pos);e=c.length();c=.01>e?randVector(.001):c.scale(.001/e);this.velocity=this.velocity.add(c);d.mass&&(d.velocity=d.velocity.subtract(c));debugOverlay&&debugPhysics&&debugOverlap(this.pos,this.size,d.pos,d.size,"#f00");continue}e=this.size.add(d.size);var f=2*(a.y-d.pos.y)>e.y+gravity;const k=2*abs(a.y-d.pos.y)<e.y;var g=2*abs(a.x-d.pos.x)<e.x;c=max(this.elasticity,d.elasticity);if(f||g||!k)if(this.pos.y=d.pos.y+(e.y/2+.001)*sign(a.y-d.pos.y),d.groundObject&&b||!d.mass)b&&(this.groundObject=d),this.velocity.y*=-c;else if(d.mass){g=(this.mass*this.velocity.y+d.mass*d.velocity.y)/(this.mass+d.mass);const h=d.velocity.y*(d.mass-this.mass)/(this.mass+d.mass)+2*this.velocity.y*this.mass/(this.mass+d.mass);this.velocity.y=lerp(c,g,this.velocity.y*(this.mass-d.mass)/(this.mass+d.mass)+2*d.velocity.y*d.mass/(this.mass+d.mass));d.velocity.y=lerp(c,g,h)}!f&&k&&(this.pos.x=d.pos.x+(e.x/2+.001)*sign(a.x-d.pos.x),d.mass?(e=(this.mass*this.velocity.x+d.mass*d.velocity.x)/(this.mass+d.mass),f=d.velocity.x*(d.mass-this.mass)/(this.mass+d.mass)+2*this.velocity.x*this.mass/(this.mass+d.mass),this.velocity.x=lerp(c,e,this.velocity.x*(this.mass-d.mass)/(this.mass+d.mass)+2*d.velocity.x*d.mass/(this.mass+d.mass)),d.velocity.x=lerp(c,e,f)):this.velocity.x*=-c);debugOverlay&&debugPhysics&&debugOverlap(this.pos,this.size,d.pos,d.size,"#f0f")}if(this.collideTiles&&tileCollisionTest(this.pos,this.size,this)&&!tileCollisionTest(a,this.size,this)){d=tileCollisionTest(vec2(a.x,this.pos.y),this.size,this);c=tileCollisionTest(vec2(this.pos.x,a.y),this.size,this);if(d||!c)this.velocity.y*=-this.elasticity,(this.groundObject=b)?this.pos.y=(a.y-this.size.y/2|0)+this.size.y/2+1e-4:this.pos.y=a.y;c&&(this.pos.x=a.x,this.velocity.x*=-this.elasticity);debugOverlay&&debugPhysics&&debugRect(this.pos,this.size,"#f00")}}}}render(){drawTile(this.pos,this.drawSize||this.size,this.tileInfo,this.color,this.angle,this.mirror,this.additiveColor)}destroy(){if(!this.destroyed){this.destroyed=1;this.parent&&this.parent.removeChild(this);for(const a of this.children)a.destroy(a.parent=0)}}localToWorld(a){return this.pos.add(a.rotate(this.angle))}worldToLocal(a){return a.subtract(this.pos).rotate(-this.angle)}localToWorldVector(a){return a.rotate(-this.angle)}worldToLocalVector(a){return a.rotate(this.angle)}collideWithTile(a,b){return 0<a}collideWithObject(a){return!0}getAliveTime(){return time-this.spawnTime}applyAcceleration(a){this.mass&&(this.velocity=this.velocity.add(a))}applyForce(a){this.applyAcceleration(a.scale(1/this.mass))}getMirrorSign(){return this.mirror?-1:1}addChild(a,b=vec2(),c=0){ASSERT(!a.parent&&!this.children.includes(a));this.children.push(a);a.parent=this;a.localPos=b.copy();a.localAngle=c}removeChild(a){ASSERT(a.parent==this&&this.children.includes(a));this.children.splice(this.children.indexOf(a),1);a.parent=0}setCollision(a=!0,b=!0,c=!0,d=!0){ASSERT(a||!b,"solid objects must be set to collide");this.collideSolidObjects=a;this.isSolid=b;this.collideTiles=c;this.collideRaycast=d}toString(){if(debug){let a="type = "+this.constructor.name;if(this.pos.x||this.pos.y)a+="\npos = "+this.pos;if(this.velocity.x||this.velocity.y)a+="\nvelocity = "+this.velocity;if(this.size.x||this.size.y)a+="\nsize = "+this.size;this.angle&&(a+="\nangle = "+this.angle.toFixed(3));this.color&&(a+="\ncolor = "+this.color);return a}}renderDebugInfo(){if(debug){const a=vec2(max(this.size.x,.2),max(this.size.y,.2)),b=rgb(this.collideTiles?1:0,this.collideSolidObjects?1:0,this.isSolid?1:0,this.parent?.2:.5),c=this.parent?rgb(1,1,1,.5):rgb(0,0,0,.8);drawRect(this.pos,a,b,this.angle,!1);drawRect(this.pos,a.scale(.8),c,this.angle,!1);this.parent&&drawLine(this.pos,this.parent.pos,.1,rgb(0,0,1,.5),!1)}}}let mainCanvas,mainContext,overlayCanvas,overlayContext,mainCanvasSize=vec2(),textureInfos=[],drawCount;function tile(a=vec2(),b=tileSizeDefault,c=0,d=0){if(headlessMode)return new TileInfo;"number"===typeof b&&(ASSERT(0<b),b=vec2(b));var e=textureInfos[c];ASSERT(!!e,"Texture not loaded");const f=b.add(vec2(2*d));"number"===typeof a&&(e=e.size.x/f.x|0,a=0<e?vec2(a%e,a/e|0):vec2());a=vec2(a.x*f.x+d,a.y*f.y+d);return new TileInfo(a,b,c,d)}class TileInfo{constructor(a=vec2(),b=tileSizeDefault,c=0,d=0){this.pos=a.copy();this.size=b.copy();this.textureIndex=c;this.padding=d}offset(a){return new TileInfo(this.pos.add(a),this.size,this.textureIndex)}frame(a){ASSERT("number"==typeof a);return this.offset(vec2(a*(this.size.x+2*this.padding),0))}getTextureInfo(){return textureInfos[this.textureIndex]}}class TextureInfo{constructor(a){this.image=a;this.size=vec2(a.width,a.height);this.glTexture=glEnable&&glCreateTexture(a)}}function screenToWorld(a){return new Vector2((a.x-mainCanvasSize.x/2+.5)/cameraScale+cameraPos.x,(a.y-mainCanvasSize.y/2+.5)/-cameraScale+cameraPos.y)}function worldToScreen(a){return new Vector2((a.x-cameraPos.x)*cameraScale+mainCanvasSize.x/2-.5,(a.y-cameraPos.y)*-cameraScale+mainCanvasSize.y/2-.5)}function getCameraSize(){return mainCanvasSize.scale(1/cameraScale)}function drawTile(a,b=vec2(1),c,d=new Color,e=0,f,g=new Color(0,0,0,0),k=glEnable,h,m){ASSERT(!m||!k,"context only supported in canvas 2D mode");ASSERT("number"!==typeof c||!c,"this is an old style calls, to fix replace it with tile(tileIndex, tileSize)");const n=c&&c.getTextureInfo();if(k)if(h&&(a=screenToWorld(a),b=b.scale(1/cameraScale)),n){var l=vec2(1).divide(n.size);k=c.pos.x*l.x;h=c.pos.y*l.y;m=c.size.x*l.x;const p=c.size.y*l.y;l=l.scale(tileFixBleedScale);glSetTexture(n.glTexture);glDraw(a.x,a.y,f?-b.x:b.x,b.y,e,k+l.x,h+l.y,k-l.x+m,h-l.y+p,d.rgbaInt(),g.rgbaInt())}else glDraw(a.x,a.y,b.x,b.y,e,0,0,0,0,0,d.rgbaInt());else showWatermark&&++drawCount,b=vec2(b.x,-b.y),drawCanvas2D(a,b,e,f,p=>{if(n){const q=c.pos.x+tileFixBleedScale,r=c.pos.y+tileFixBleedScale,x=c.size.x-2*tileFixBleedScale,v=c.size.y-2*tileFixBleedScale;p.globalAlpha=d.a;p.drawImage(n.image,q,r,x,v,-.5,-.5,1,1);p.globalAlpha=1}else p.fillStyle=d,p.fillRect(-.5,-.5,1,1)},h,m)}function drawRect(a,b,c,d,e,f,g){drawTile(a,b,void 0,c,d,!1,void 0,e,f,g)}function drawLine(a,b,c=.1,d,e,f,g){b=vec2((b.x-a.x)/2,(b.y-a.y)/2);c=vec2(c,2*b.length());drawRect(a.add(b),c,d,b.angle(),e,f,g)}function drawPoly(a,b=new Color,c=0,d=new Color(0,0,0),e,f=mainContext){f.fillStyle=b.toString();f.beginPath();for(const g of e?a:a.map(worldToScreen))f.lineTo(g.x,g.y);f.closePath();f.fill();c&&(f.strokeStyle=d.toString(),f.lineWidth=e?c:c*cameraScale,f.stroke())}function drawEllipse(a,b=1,c=1,d=0,e=new Color,f=0,g=new Color(0,0,0),k,h=mainContext){k||(a=worldToScreen(a),b*=cameraScale,c*=cameraScale,f*=cameraScale);h.fillStyle=e.toString();h.beginPath();h.ellipse(a.x,a.y,b,c,d,0,9);h.fill();f&&(h.strokeStyle=g.toString(),h.lineWidth=f,h.stroke())}function drawCircle(a,b=1,c=new Color,d=0,e=new Color(0,0,0),f,g=mainContext){drawEllipse(a,b,b,0,c,d,e,f,g)}function drawCanvas2D(a,b,c,d,e,f,g=mainContext){f||(a=worldToScreen(a),b=b.scale(cameraScale));g.save();g.translate(a.x+.5,a.y+.5);g.rotate(c);g.scale(d?-b.x:b.x,-b.y);e(g);g.restore()}function drawText(a,b,c=1,d,e=0,f,g,k,h,m=mainContext){drawTextScreen(a,worldToScreen(b),c*cameraScale,d,e*cameraScale,f,g,k,h,m)}function drawTextOverlay(a,b,c=1,d,e=0,f,g,k,h){drawText(a,b,c,d,e,f,g,k,h,overlayContext)}function drawTextScreen(a,b,c=1,d=new Color,e=0,f=new Color(0,0,0),g="center",k=fontDefault,h,m=overlayContext){m.fillStyle=d.toString();m.lineWidth=e;m.strokeStyle=f.toString();m.textAlign=g;m.font=c+"px "+k;m.textBaseline="middle";m.lineJoin="round";b=b.copy();a=(a+"").split("\n");b.y-=(a.length-1)*c/2;a.forEach(n=>{e&&m.strokeText(n,b.x,b.y,h);m.fillText(n,b.x,b.y,h);b.y+=c})}function setBlendMode(a,b=glEnable,c){ASSERT(!c||!b,"context only supported in canvas 2D mode");b?glAdditive=a:(c||=mainContext,c.globalCompositeOperation=a?"lighter":"source-over")}function combineCanvases(){glCopyToContext(mainContext,!0);mainContext.drawImage(overlayCanvas,0,0);glClearCanvas();overlayCanvas.width|=0}let engineFontImage;class FontImage{constructor(a,b=vec2(8),c=vec2(0,1),d=overlayContext){engineFontImage||((engineFontImage=new Image).src="data:image/png;base64,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");this.image=a||engineFontImage;this.tileSize=b;this.paddingSize=c;this.context=d}drawText(a,b,c=1,d){this.drawTextScreen(a,worldToScreen(b).floor(),c*cameraScale|0,d)}drawTextScreen(a,b,c=4,d){const e=this.context;e.save();const f=this.tileSize,g=f.add(this.paddingSize).scale(c),k=this.image.width/this.tileSize.x|0;(a+"").split("\n").forEach((h,m)=>{const n=d?h.length*f.x*c/2|0:0;for(let q=h.length;q--;){var l=h[q].charCodeAt(0);if(32>l||127<l)l=127;var p=l-32;l=p%k;p=p/k|0;const r=b.add(vec2(q,m).multiply(g));e.drawImage(this.image,l*f.x,p*f.y,f.x,f.y,r.x-n,r.y,f.x*c,f.y*c)}});e.restore()}}function isFullscreen(){return!!document.fullscreenElement}function toggleFullscreen(){const a=mainCanvas.parentElement;isFullscreen()?document.exitFullscreen&&document.exitFullscreen():a.requestFullscreen&&a.requestFullscreen()}function setCursor(a="auto"){mainCanvas.parentElement.style.cursor=a}function keyIsDown(a,b=0){ASSERT(0<b||"number"!==typeof a||3>a,"use code string for keyboard");return inputData[b]&&!!(inputData[b][a]&1)}function keyWasPressed(a,b=0){ASSERT(0<b||"number"!==typeof a||3>a,"use code string for keyboard");return inputData[b]&&!!(inputData[b][a]&2)}function keyWasReleased(a,b=0){ASSERT(0<b||"number"!==typeof a||3>a,"use code string for keyboard");return inputData[b]&&!!(inputData[b][a]&4)}function clearInput(){inputData=[[]];touchGamepadButtons=[]}const mouseIsDown=keyIsDown,mouseWasPressed=keyWasPressed,mouseWasReleased=keyWasReleased;let mousePos=vec2(),mousePosScreen=vec2(),mouseWheel=0,isUsingGamepad=!1,preventDefaultInput=!1;function gamepadIsDown(a,b=0){return keyIsDown(a,b+1)}function gamepadWasPressed(a,b=0){return keyWasPressed(a,b+1)}function gamepadWasReleased(a,b=0){return keyWasReleased(a,b+1)}function gamepadStick(a,b=0){return gamepadStickData[b]?gamepadStickData[b][a]||vec2():vec2()}let inputData=[[]];function inputUpdate(){headlessMode||(touchInputEnable&&isTouchDevice||document.hasFocus()||clearInput(),mousePos=screenToWorld(mousePosScreen),gamepadsUpdate())}function inputUpdatePost(){if(!headlessMode){for(const a of inputData)for(const b in a)a[b]&=1;mouseWheel=0}}function inputInit(){function a(b){return inputWASDEmulateDirection?"KeyW"==b?"ArrowUp":"KeyS"==b?"ArrowDown":"KeyA"==b?"ArrowLeft":"KeyD"==b?"ArrowRight":b:b}headlessMode||(onkeydown=b=>{b.repeat||(isUsingGamepad=!1,inputData[0][b.code]=3,inputWASDEmulateDirection&&(inputData[0][a(b.code)]=3));preventDefaultInput&&b.preventDefault()},onkeyup=b=>{inputData[0][b.code]=4;inputWASDEmulateDirection&&(inputData[0][a(b.code)]=4)},onmousedown=b=>{soundEnable&&!headlessMode&&audioContext&&"running"!=audioContext.state&&audioContext.resume();isUsingGamepad=!1;inputData[0][b.button]=3;mousePosScreen=mouseToScreen(b);b.button&&b.preventDefault()},onmouseup=b=>inputData[0][b.button]=inputData[0][b.button]&2|4,onmousemove=b=>mousePosScreen=mouseToScreen(b),onwheel=b=>mouseWheel=b.ctrlKey?0:sign(b.deltaY),oncontextmenu=b=>!1,onblur=b=>clearInput(),isTouchDevice&&touchInputEnable&&touchInputInit())}function mouseToScreen(a){if(!mainCanvas||headlessMode)return vec2();const b=mainCanvas.getBoundingClientRect();return vec2(mainCanvas.width,mainCanvas.height).multiply(vec2(percent(a.x,b.left,b.right),percent(a.y,b.top,b.bottom)))}const gamepadStickData=[];function gamepadsUpdate(){const a=g=>{const k=h=>.3<h?percent(h,.3,.8):-.3>h?-percent(-h,.3,.8):0;return vec2(k(g.x),k(-g.y)).clampLength()};if(touchGamepadEnable&&isTouchDevice&&(ASSERT(touchGamepadButtons,"set touchGamepadEnable before calling init!"),touchGamepadTimer.isSet())){var b=gamepadStickData[0]||(gamepadStickData[0]=[]);b[0]=vec2();touchGamepadAnalog?b[0]=a(touchGamepadStick):.3<touchGamepadStick.lengthSquared()&&(b[0].x=Math.round(touchGamepadStick.x),b[0].y=-Math.round(touchGamepadStick.y),b[0]=b[0].clampLength());b=inputData[1]||(inputData[1]=[]);for(var c=10;c--;){var d=3==c?2:2==c?3:c,e=gamepadIsDown(d,0);b[d]=touchGamepadButtons[c]?e?1:3:e?4:0}}if(gamepadsEnable&&navigator&&navigator.getGamepads&&(debug||document.hasFocus()))for(b=navigator.getGamepads(),c=b.length;c--;){e=b[c];const g=inputData[c+1]||(inputData[c+1]=[]);d=gamepadStickData[c]||(gamepadStickData[c]=[]);if(e){for(var f=0;f<e.axes.length-1;f+=2)d[f>>1]=a(vec2(e.axes[f],e.axes[f+1]));for(f=e.buttons.length;f--;){const k=e.buttons[f],h=gamepadIsDown(f,c);g[f]=k.pressed?h?1:3:h?4:0;isUsingGamepad||=!c&&k.pressed}gamepadDirectionEmulateStick&&(e=vec2((gamepadIsDown(15,c)&&1)-(gamepadIsDown(14,c)&&1),(gamepadIsDown(12,c)&&1)-(gamepadIsDown(13,c)&&1)),e.lengthSquared()&&(d[0]=e.clampLength()));touchGamepadEnable&&isUsingGamepad&&touchGamepadTimer.unset()}}}function vibrate(a=100){vibrateEnable&&!headlessMode&&navigator&&navigator.vibrate&&navigator.vibrate(a)}function vibrateStop(){vibrate(0)}const isTouchDevice=!headlessMode&&void 0!==window.ontouchstart;let touchGamepadTimer=new Timer,touchGamepadButtons,touchGamepadStick;function touchInputInit(){function a(e){soundEnable&&!headlessMode&&audioContext&&"running"!=audioContext.state&&audioContext.resume();const f=e.touches.length;if(f){const g=vec2(e.touches[0].clientX,e.touches[0].clientY);mousePosScreen=mouseToScreen(g);d?isUsingGamepad=touchGamepadEnable:inputData[0][0]=3}else d&&(inputData[0][0]=inputData[0][0]&2|4);d=f;document.hasFocus()&&e.preventDefault();return!0}function b(e){touchGamepadStick=vec2();touchGamepadButtons=[];isUsingGamepad=!0;if(e.touches.length&&(touchGamepadTimer.set(),paused&&!d)){touchGamepadButtons[9]=1;a(e);return}const f=vec2(touchGamepadSize,mainCanvasSize.y-touchGamepadSize),g=mainCanvasSize.subtract(vec2(touchGamepadSize,touchGamepadSize)),k=mainCanvasSize.scale(.5);for(const m of e.touches){var h=mouseToScreen(vec2(m.clientX,m.clientY));h.distance(f)<touchGamepadSize?touchGamepadStick=h.subtract(f).scale(2/touchGamepadSize).clampLength():h.distance(g)<touchGamepadSize?(h=h.subtract(g).direction(),touchGamepadButtons[h]=1):h.distance(k)<touchGamepadSize&&!d&&(touchGamepadButtons[9]=1)}a(e);return!0}let c=a;touchGamepadEnable&&(c=b,touchGamepadButtons=[],touchGamepadStick=vec2());document.addEventListener("touchstart",e=>c(e),{passive:!1});document.addEventListener("touchmove",e=>c(e),{passive:!1});document.addEventListener("touchend",e=>c(e),{passive:!1});onmousedown=onmouseup=()=>0;let d}function touchGamepadRender(){if(touchInputEnable&&isTouchDevice&&!headlessMode&&touchGamepadEnable&&touchGamepadTimer.isSet()){var a=percent(touchGamepadTimer.get(),4,3);if(a&&!paused){var b=overlayContext;b.save();b.globalAlpha=a*touchGamepadAlpha;b.strokeStyle="#fff";b.lineWidth=3;b.fillStyle=0<touchGamepadStick.lengthSquared()?"#fff":"#000";b.beginPath();a=vec2(touchGamepadSize,mainCanvasSize.y-touchGamepadSize);if(touchGamepadAnalog)b.arc(a.x,a.y,touchGamepadSize/2,0,9),b.fill();else for(var c=10;c--;){var d=c*PI/4;b.arc(a.x,a.y,.6*touchGamepadSize,d+PI/8,d+PI/8);c%2&&b.arc(a.x,a.y,.33*touchGamepadSize,d,d);1==c&&b.fill()}b.stroke();a=vec2(mainCanvasSize.x-touchGamepadSize,mainCanvasSize.y-touchGamepadSize);for(c=4;c--;)d=a.add(vec2().setDirection(c,touchGamepadSize/2)),b.fillStyle=touchGamepadButtons[c]?"#fff":"#000",b.beginPath(),b.arc(d.x,d.y,touchGamepadSize/4,0,9),b.fill(),b.stroke();b.restore()}}}let audioContext=new AudioContext,audioGainNode;function audioInit(){soundEnable&&!headlessMode&&(audioGainNode=audioContext.createGain(),audioGainNode.connect(audioContext.destination),audioGainNode.gain.value=soundVolume)}class Sound{constructor(a,b=soundDefaultRange,c=soundDefaultTaper){soundEnable&&!headlessMode&&(this.range=b,this.taper=c,this.randomness=0,a&&(this.randomness=void 0!=a[1]?a[1]:.05,a[1]=0,this.sampleChannels=[zzfxG(...a)],this.sampleRate=zzfxR))}play(a,b=1,c=1,d=1,e=!1){if(soundEnable&&!headlessMode&&this.sampleChannels){var f;if(a){if(f=this.range){const g=cameraPos.distanceSquared(a);if(g>f*f)return;b*=percent(g**.5,f,f*this.taper)}f=2*worldToScreen(a).x/mainCanvas.width-1}a=c+c*this.randomness*d*rand(-1,1);this.gainNode=audioContext.createGain();return this.source=playSamples(this.sampleChannels,b,a,f,e,this.sampleRate,this.gainNode)}}setVolume(a=1){this.gainNode&&(this.gainNode.gain.value=a)}stop(){this.source&&this.source.stop();this.source=void 0}getSource(){return this.source}playNote(a,b,c){return this.play(b,c,2**(a/12),0)}getDuration(){return this.sampleChannels&&this.sampleChannels[0].length/this.sampleRate}isLoading(){return!this.sampleChannels}}class SoundWave extends Sound{constructor(a,b=0,c,d,e){super(void 0,c,d);soundEnable&&!headlessMode&&(this.randomness=b,fetch(a).then(f=>f.arrayBuffer()).then(f=>audioContext.decodeAudioData(f)).then(f=>{this.sampleChannels=[];for(let g=f.numberOfChannels;g--;)this.sampleChannels[g]=Array.from(f.getChannelData(g));this.sampleRate=f.sampleRate}).then(()=>e&&e(this)))}}function playAudioFile(a,b=1,c=!1){if(soundEnable&&!headlessMode)return new SoundWave(a,0,0,0,d=>d.play(void 0,b,1,1,c))}class Music extends Sound{constructor(a){super(void 0);soundEnable&&!headlessMode&&(this.randomness=0,this.sampleChannels=zzfxM(...a),this.sampleRate=zzfxR)}playMusic(a,b=!1){return super.play(void 0,a,1,1,b)}}function speak(a,b="",c=1,d=1,e=1){if(soundEnable&&!headlessMode&&speechSynthesis)return a=new SpeechSynthesisUtterance(a),a.lang=b,a.volume=2*c*soundVolume,a.rate=d,a.pitch=e,speechSynthesis.speak(a),a}function speakStop(){speechSynthesis&&speechSynthesis.cancel()}function getNoteFrequency(a,b=220){return b*2**(a/12)}function playSamples(a,b=1,c=1,d=0,e=!1,f=zzfxR,g){if(soundEnable&&!headlessMode){var k=audioContext.createBuffer(a.length,a[0].length,f),h=audioContext.createBufferSource();a.forEach((m,n)=>k.getChannelData(n).set(m));h.buffer=k;h.playbackRate.value=c;h.loop=e;g=g||audioContext.createGain();g.gain.value=b;g.connect(audioGainNode);a=new StereoPannerNode(audioContext,{pan:clamp(d,-1,1)});h.connect(a).connect(g);"running"!=audioContext.state?audioContext.resume().then(()=>h.start()):h.start();return h}}function zzfx(...a){return playSamples([zzfxG(...a)])}const zzfxR=44100;function zzfxG(a=1,b=.05,c=220,d=0,e=0,f=.1,g=0,k=1,h=0,m=0,n=0,l=0,p=0,q=0,r=0,x=0,v=0,D=1,z=0,E=0,A=0){let w=2*PI;var t=zzfxR;let F=h*=500*w/t/t;b=c*=rand(1+b,1-b)*w/t;let C=[],y=0,G=0,u=0,H=1,R=0,S=0,B=0,J;var L=w*abs(A)*2/t,K=Math.cos(L),M=Math.sin(L)/2/2,I=1+M;L=-2*K/I;M=(1-M)/I;let N=(1+sign(A)*K)/2/I;K=-(sign(A)+K)/I;let O=I=0,P=0,Q=0;d=d*t+9;z*=t;e*=t;f*=t;v*=t;m*=500*w/t**3;r*=w/t;n*=w/t;l*=t;p=p*t|0;for(J=d+z+e+f+v|0;u<J;C[u++]=B*a)++S%(100*x|0)||(B=g?1<g?2<g?3<g?Math.sin(y**3):clamp(Math.tan(y),1,-1):1-(2*y/w%2+2)%2:1-4*abs(Math.round(y/w)-y/w):Math.sin(y),B=(p?1-E+E*Math.sin(w*u/p):1)*sign(B)*abs(B)**k*(u<d?u/d:u<d+z?1-(u-d)/z*(1-D):u<d+z+e?D:u<J-v?(J-u-v)/f*D:0),B=v?B/2+(v>u?0:(u<J-v?1:(J-u)/v)*C[u-v|0]/2/a):B,A&&(B=Q=N*I+K*(I=O)+N*(O=B)-M*P-L*(P=Q))),t=(c+=h+=m)*Math.cos(r*G++),y+=t+t*q*Math.sin(u**5),H&&++H>l&&(c+=n,b+=n,H=0),!p||++R%p||(c=b,h=F,H=H||1);return C}function zzfxM(a,b,c,d=125){let e,f,g,k,h,m,n,l,p,q,r,x,v,D=0,z,E=[],A=[],w=[],t=0,F=0,C=1,y={},G=zzfxR/d*60>>2;for(;C;t++)E=[C=l=x=0],c.forEach((u,H)=>{n=b[u][t]||[0,0,0];C|=b[u][t]&&1;z=x+(b[u][0].length-2-(l?0:1))*G;v=H==c.length-1;e=2;for(g=x;e<n.length+v;l=++e){h=n[e];p=e==n.length+v-1&&v||q!=(n[0]||0)||h|0;for(f=0;f<G&&l;f++>G-99&&p&&1>r?r+=1/99:0)m=(1-r)*E[D++]/2||0,A[g]=(A[g]||0)-m*F+m,w[g]=(w[g++]||0)+m*F+m;h&&(r=h%1,F=n[1]||0,h|=0)&&(E=y[[q=n[D=0]||0,h]]=y[[q,h]]||(k=[...a[q]],k[2]*=2**((h-12)/12),0<h?zzfxG(...k):[]))}x=z});return[A,w]}let tileCollision=[],tileCollisionSize=vec2();function initTileCollision(a){tileCollisionSize=a;tileCollision=[];for(a=tileCollision.length=tileCollisionSize.area();a--;)tileCollision[a]=0}function setTileCollisionData(a,b=0){a.arrayCheck(tileCollisionSize)&&(tileCollision[(a.y|0)*tileCollisionSize.x+a.x|0]=b)}function getTileCollisionData(a){return a.arrayCheck(tileCollisionSize)?tileCollision[(a.y|0)*tileCollisionSize.x+a.x|0]:0}function tileCollisionTest(a,b=vec2(),c){const d=max(a.x-b.x/2|0,0);var e=max(a.y-b.y/2|0,0);const f=min(a.x+b.x/2,tileCollisionSize.x);for(a=min(a.y+b.y/2,tileCollisionSize.y);e<a;++e)for(b=d;b<f;++b){const g=tileCollision[e*tileCollisionSize.x+b];if(g&&(!c||c.collideWithTile(g,vec2(b,e))))return!0}return!1}function tileCollisionRaycast(a,b,c){const d=b.subtract(a),e=d.length();var f=d.normalize();f=vec2(abs(1/f.x),abs(1/f.y));let g=a.floor(),k=f.x*(0>d.x?a.x-g.x:g.x-a.x+1),h=f.y*(0>d.y?a.y-g.y:g.y-a.y+1);for(;;){const m=getTileCollisionData(g);if(m&&(!c||c.collideWithTile(m,g)))return debugRaycast&&debugLine(a,b,"#f00",.02),debugRaycast&&debugPoint(g.add(vec2(.5)),"#ff0"),g.add(vec2(.5));if(k>e&&h>e)break;k>h?(g.y+=sign(d.y),h+=f.y):(g.x+=sign(d.x),k+=f.x)}debugRaycast&&debugLine(a,b,"#00f",.02)}class TileLayerData{constructor(a,b=0,c=!1,d=new Color){this.tile=a;this.direction=b;this.mirror=c;this.color=d}clear(){this.tile=this.direction=0;this.mirror=!1;this.color=new Color}}class TileLayer extends EngineObject{constructor(a,b=tileCollisionSize,c=tile(),d=vec2(1),e=0){super(a,b,c,0,void 0,e);this.canvas=document.createElement("canvas");this.context=this.canvas.getContext("2d");this.scale=d;this.isOverlay=!1;this.data=[];for(a=this.size.area();a--;)this.data.push(new TileLayerData);headlessMode&&(this.redraw=()=>{},this.render=()=>{},this.redrawStart=()=>{},this.redrawEnd=()=>{},this.drawTileData=()=>{},this.drawCanvas2D=()=>{})}setData(a,b,c=!1){a.arrayCheck(this.size)&&(this.data[(a.y|0)*this.size.x+a.x|0]=b,c&&this.drawTileData(a))}getData(a){return a.arrayCheck(this.size)&&this.data[(a.y|0)*this.size.x+a.x|0]}update(){}render(){ASSERT(mainContext!=this.context,"must call redrawEnd() after drawing tiles");glOverlay||this.isOverlay||glCopyToContext(mainContext);let a=worldToScreen(this.pos.add(vec2(0,this.size.y*this.scale.y)));a=a.floor();(this.isOverlay?overlayContext:mainContext).drawImage(this.canvas,a.x,a.y,cameraScale*this.size.x*this.scale.x,cameraScale*this.size.y*this.scale.y)}redraw(){this.redrawStart(!0);for(let a=this.size.x;a--;)for(let b=this.size.y;b--;)this.drawTileData(vec2(a,b),!1);this.redrawEnd()}redrawStart(a=!1){this.savedRenderSettings=[mainCanvas,mainContext,mainCanvasSize,cameraPos,cameraScale];mainCanvas=this.canvas;mainContext=this.context;mainCanvasSize=this.size.multiply(this.tileInfo.size);cameraPos=this.size.scale(.5);cameraScale=this.tileInfo.size.x;a&&(mainCanvas.width=mainCanvasSize.x,mainCanvas.height=mainCanvasSize.y);this.context.imageSmoothingEnabled=!tilesPixelated;glPreRender()}redrawEnd(){ASSERT(mainContext==this.context,"must call redrawStart() before drawing tiles");glCopyToContext(mainContext,!0);[mainCanvas,mainContext,mainCanvasSize,cameraPos,cameraScale]=this.savedRenderSettings}drawTileData(a,b=!0){var c=this.tileInfo.size;b&&(b=a.multiply(c),this.context.clearRect(b.x,this.canvas.height-b.y,c.x,-c.y));b=this.getData(a);void 0!=b.tile&&(ASSERT(mainContext==this.context,"must call redrawStart() before drawing tiles"),a=a.add(vec2(.5)),c=tile(b.tile,c,this.tileInfo.textureIndex),drawTile(a,vec2(1),c,b.color,b.direction*PI/2,b.mirror))}drawCanvas2D(a,b,c,d,e){const f=this.context;f.save();a=a.subtract(this.pos).multiply(this.tileInfo.size);b=b.multiply(this.tileInfo.size);f.translate(a.x,this.canvas.height-a.y);f.rotate(c);f.scale(d?-b.x:b.x,b.y);e(f);f.restore()}drawTile(a,b=vec2(1),c,d=new Color,e,f){this.drawCanvas2D(a,b,e,f,g=>{const k=c&&c.getTextureInfo();k?(g.globalAlpha=d.a,g.drawImage(k.image,c.pos.x,c.pos.y,c.size.x,c.size.y,-.5,-.5,1,1),g.globalAlpha=1):(g.fillStyle=d,g.fillRect(-.5,-.5,1,1))})}drawRect(a,b,c,d){this.drawTile(a,b,void 0,c,d)}}class ParticleEmitter extends EngineObject{constructor(a,b,c=0,d=0,e=100,f=PI,g,k=new Color,h=new Color,m=new Color(1,1,1,0),n=new Color(1,1,1,0),l=.5,p=.1,q=1,r=.1,x=.05,v=1,D=1,z=0,E=PI,A=.1,w=.2,t=!1,F=!1,C=!0,y=F?1e9:0,G=!1){super(a,vec2(),g,b,void 0,y);this.emitSize=c;this.emitTime=d;this.emitRate=e;this.emitConeAngle=f;this.colorStartA=k;this.colorStartB=h;this.colorEndA=m;this.colorEndB=n;this.randomColorLinear=C;this.particleTime=l;this.sizeStart=p;this.sizeEnd=q;this.speed=r;this.angleSpeed=x;this.damping=v;this.angleDamping=D;this.gravityScale=z;this.particleConeAngle=E;this.fadeRate=A;this.randomness=w;this.collideTiles=t;this.additive=F;this.localSpace=G;this.trailScale=0;this.particleCreateCallback=this.particleDestroyCallback=void 0;this.emitTimeBuffer=0}update(){this.parent&&super.update();if(!this.emitTime||this.getAliveTime()<=this.emitTime){if(this.emitRate*particleEmitRateScale){const a=1/this.emitRate/particleEmitRateScale;for(this.emitTimeBuffer+=timeDelta;0<this.emitTimeBuffer;this.emitTimeBuffer-=a)this.emitParticle()}}else this.destroy();debugParticles&&debugRect(this.pos,vec2(this.emitSize),"#0f0",0,this.angle)}emitParticle(){var a="number"===typeof this.emitSize?randInCircle(this.emitSize/2):vec2(rand(-.5,.5),rand(-.5,.5)).multiply(this.emitSize).rotate(this.angle);let b=rand(this.particleConeAngle,-this.particleConeAngle);this.localSpace||(a=this.pos.add(a),b+=this.angle);const c=this.randomness;var d=l=>l+l*rand(c,-c);const e=d(this.particleTime),f=d(this.sizeStart),g=d(this.sizeEnd),k=d(this.speed);d=d(this.angleSpeed)*randSign();var h=rand(this.emitConeAngle,-this.emitConeAngle);const m=randColor(this.colorStartA,this.colorStartB,this.randomColorLinear),n=randColor(this.colorEndA,this.colorEndB,this.randomColorLinear);h=this.localSpace?h:this.angle+h;a=new Particle(a,this.tileInfo,b,m,n,e,f,g,this.fadeRate,this.additive,this.trailScale,this.localSpace&&this,this.particleDestroyCallback);a.velocity=vec2().setAngle(h,k);a.angleVelocity=d;a.fadeRate=this.fadeRate;a.damping=this.damping;a.angleDamping=this.angleDamping;a.elasticity=this.elasticity;a.friction=this.friction;a.gravityScale=this.gravityScale;a.collideTiles=this.collideTiles;a.renderOrder=this.renderOrder;a.mirror=!!randInt(2);this.particleCreateCallback&&this.particleCreateCallback(a);return a}render(){}}class Particle extends EngineObject{constructor(a,b,c,d,e,f,g,k,h,m,n,l,p){super(a,vec2(),b,c);this.colorStart=d;this.colorEndDelta=e.subtract(d);this.lifeTime=f;this.sizeStart=g;this.sizeEndDelta=k-g;this.fadeRate=h;this.additive=m;this.trailScale=n;this.localSpaceEmitter=l;this.destroyCallback=p;this.clampSpeedLinear=!1}render(){const a=0<this.lifeTime?min((time-this.spawnTime)/this.lifeTime,1):1,b=vec2(this.sizeStart+a*this.sizeEndDelta);var c=this.fadeRate/2;c=new Color(this.colorStart.r+a*this.colorEndDelta.r,this.colorStart.g+a*this.colorEndDelta.g,this.colorStart.b+a*this.colorEndDelta.b,(this.colorStart.a+a*this.colorEndDelta.a)*(a<c?a/c:a>1-c?(1-a)/c:1));this.additive&&setBlendMode(!0);let d=this.pos,e=this.angle;this.localSpaceEmitter&&(d=this.localSpaceEmitter.pos.add(d.rotate(-this.localSpaceEmitter.angle)),e+=this.localSpaceEmitter.angle);if(this.trailScale){var f=this.velocity;this.localSpaceEmitter&&(f=f.rotate(-this.localSpaceEmitter.angle));var g=f.length();g&&(f=f.scale(1/g),g*=this.trailScale,b.y=max(b.x,g),e=f.angle(),drawTile(d.add(f.multiply(vec2(0,-g/2))),b,this.tileInfo,c,e,this.mirror))}else drawTile(d,b,this.tileInfo,c,e,this.mirror);this.additive&&setBlendMode();debugParticles&&debugRect(d,b,"#f005",0,e);1==a&&(this.color=c,this.size=b,this.destroyCallback&&this.destroyCallback(this),this.destroyed=1)}}const medals={};let medalsDisplayQueue=[],medalsSaveName,medalsDisplayTimeLast;function medalsInit(a){medalsSaveName=a;debugMedals||medalsForEach(b=>b.unlocked=!!localStorage[b.storageKey()]);engineAddPlugin(void 0,function(){if(medalsDisplayQueue.length){var b=medalsDisplayQueue[0],c=timeReal-medalsDisplayTimeLast;if(medalsDisplayTimeLast)if(c>medalDisplayTime)medalsDisplayTimeLast=0,medalsDisplayQueue.shift();else{const d=medalDisplayTime-medalDisplaySlideTime;b.render(c<medalDisplaySlideTime?1-c/medalDisplaySlideTime:c>d?(c-d)/medalDisplaySlideTime:0)}else medalsDisplayTimeLast=timeReal}})}function medalsForEach(a){Object.values(medals).forEach(b=>a(b))}class Medal{constructor(a,b,c="",d="🏆",e){ASSERT(0<=a&&!medals[a]);this.id=a;this.name=b;this.description=c;this.icon=d;this.unlocked=!1;e&&((this.image=new Image).src=e);medals[a]=this}unlock(){medalsPreventUnlock||this.unlocked||(ASSERT(medalsSaveName,"save name must be set"),localStorage[this.storageKey()]=this.unlocked=!0,medalsDisplayQueue.push(this))}render(a=0){const b=overlayContext;var c=min(medalDisplaySize.x,mainCanvas.width);const d=overlayCanvas.width-c;a*=-medalDisplaySize.y;b.save();b.beginPath();b.fillStyle=new Color(.9,.9,.9).toString();b.strokeStyle=new Color(0,0,0).toString();b.lineWidth=3;b.rect(d,a,c,medalDisplaySize.y);b.fill();b.stroke();b.clip();this.renderIcon(vec2(d+15+medalDisplayIconSize/2,a+medalDisplaySize.y/2));c=vec2(d+medalDisplayIconSize+30,a+28);drawTextScreen(this.name,c,38,new Color(0,0,0),0,void 0,"left");c.y+=32;drawTextScreen(this.description,c,24,new Color(0,0,0),0,void 0,"left");b.restore()}renderIcon(a,b=medalDisplayIconSize){this.image?overlayContext.drawImage(this.image,a.x-b/2,a.y-b/2,b,b):drawTextScreen(this.icon,a,.7*b,new Color(0,0,0))}storageKey(){return medalsSaveName+"_"+this.id}}let glCanvas,glContext,glAntialias=!0,glShader,glActiveTexture,glArrayBuffer,glGeometryBuffer,glPositionData,glColorData,glInstanceCount,glAdditive,glBatchAdditive;const gl_MAX_INSTANCES=1e4,gl_INDICES_PER_INSTANCE=11,gl_INSTANCE_BYTE_STRIDE=4*gl_INDICES_PER_INSTANCE,gl_INSTANCE_BUFFER_SIZE=gl_MAX_INSTANCES*gl_INSTANCE_BYTE_STRIDE;function glInit(){if(glEnable&&!headlessMode){glCanvas=document.createElement("canvas");glContext=glCanvas.getContext("webgl2",{antialias:glAntialias});var a=mainCanvas.parentElement;glOverlay&&a.appendChild(glCanvas);glShader=glCreateProgram("#version 300 es\nprecision highp float;uniform mat4 m;in vec2 g;in vec4 p,u,c,a;in float r;out vec2 v;out vec4 d,e;void main(){vec2 s=(g-.5)*p.zw;gl_Position=m*vec4(p.xy+s*cos(r)-vec2(-s.y,s)*sin(r),1,1);v=mix(u.xw,u.zy,g);d=c;e=a;}","#version 300 es\nprecision highp float;uniform sampler2D s;in vec2 v;in vec4 d,e;out vec4 c;void main(){c=texture(s,v)*d+e;}");a=new ArrayBuffer(gl_INSTANCE_BUFFER_SIZE);glPositionData=new Float32Array(a);glColorData=new Uint32Array(a);glArrayBuffer=glContext.createBuffer();glGeometryBuffer=glContext.createBuffer();a=new Float32Array([glInstanceCount=0,0,1,0,0,1,1,1]);glContext.bindBuffer(glContext.ARRAY_BUFFER,glGeometryBuffer);glContext.bufferData(glContext.ARRAY_BUFFER,a,glContext.STATIC_DRAW)}}function glPreRender(){if(glEnable&&!headlessMode){glClearCanvas();glContext.useProgram(glShader);glContext.activeTexture(glContext.TEXTURE0);textureInfos[0]&&glContext.bindTexture(glContext.TEXTURE_2D,glActiveTexture=textureInfos[0].glTexture);var a=glAdditive=glBatchAdditive=0,b=(d,e,f,g)=>{d=glContext.getAttribLocation(glShader,d);const k=f&&gl_INSTANCE_BYTE_STRIDE,h=f&&1,m=1==f;glContext.enableVertexAttribArray(d);glContext.vertexAttribPointer(d,g,e,m,k,a);glContext.vertexAttribDivisor(d,h);a+=g*f};glContext.bindBuffer(glContext.ARRAY_BUFFER,glGeometryBuffer);b("g",glContext.FLOAT,0,2);glContext.bindBuffer(glContext.ARRAY_BUFFER,glArrayBuffer);glContext.bufferData(glContext.ARRAY_BUFFER,gl_INSTANCE_BUFFER_SIZE,glContext.DYNAMIC_DRAW);b("p",glContext.FLOAT,4,4);b("u",glContext.FLOAT,4,4);b("c",glContext.UNSIGNED_BYTE,1,4);b("a",glContext.UNSIGNED_BYTE,1,4);b("r",glContext.FLOAT,4,1);b=vec2(2*cameraScale).divide(mainCanvasSize);var c=vec2(-1).subtract(cameraPos.multiply(b));glContext.uniformMatrix4fv(glContext.getUniformLocation(glShader,"m"),!1,[b.x,0,0,0,0,b.y,0,0,1,1,1,1,c.x,c.y,0,0])}}function glClearCanvas(){glContext.viewport(0,0,glCanvas.width=mainCanvas.width,glCanvas.height=mainCanvas.height);glContext.clear(glContext.COLOR_BUFFER_BIT)}function glSetTexture(a){headlessMode||a==glActiveTexture||(glFlush(),glContext.bindTexture(glContext.TEXTURE_2D,glActiveTexture=a))}function glCompileShader(a,b){b=glContext.createShader(b);glContext.shaderSource(b,a);glContext.compileShader(b);if(debug&&!glContext.getShaderParameter(b,glContext.COMPILE_STATUS))throw glContext.getShaderInfoLog(b);return b}function glCreateProgram(a,b){const c=glContext.createProgram();glContext.attachShader(c,glCompileShader(a,glContext.VERTEX_SHADER));glContext.attachShader(c,glCompileShader(b,glContext.FRAGMENT_SHADER));glContext.linkProgram(c);if(debug&&!glContext.getProgramParameter(c,glContext.LINK_STATUS))throw glContext.getProgramInfoLog(c);return c}function glCreateTexture(a){const b=glContext.createTexture();glContext.bindTexture(glContext.TEXTURE_2D,b);a&&a.width?glContext.texImage2D(glContext.TEXTURE_2D,0,glContext.RGBA,glContext.RGBA,glContext.UNSIGNED_BYTE,a):(a=new Uint8Array([255,255,255,255]),glContext.texImage2D(glContext.TEXTURE_2D,0,glContext.RGBA,1,1,0,glContext.RGBA,glContext.UNSIGNED_BYTE,a));a=tilesPixelated?glContext.NEAREST:glContext.LINEAR;glContext.texParameteri(glContext.TEXTURE_2D,glContext.TEXTURE_MIN_FILTER,a);glContext.texParameteri(glContext.TEXTURE_2D,glContext.TEXTURE_MAG_FILTER,a);return b}function glFlush(){if(glInstanceCount){var a=glBatchAdditive?glContext.ONE:glContext.ONE_MINUS_SRC_ALPHA;glContext.blendFuncSeparate(glContext.SRC_ALPHA,a,glContext.ONE,a);glContext.enable(glContext.BLEND);glContext.bufferSubData(glContext.ARRAY_BUFFER,0,glPositionData);glContext.drawArraysInstanced(glContext.TRIANGLE_STRIP,0,4,glInstanceCount);showWatermark&&(drawCount+=glInstanceCount);glInstanceCount=0;glBatchAdditive=glAdditive}}function glCopyToContext(a,b=!1){glEnable&&(glInstanceCount||b)&&(glFlush(),glOverlay&&!b||a.drawImage(glCanvas,0,0))}function glSetAntialias(a=!0){ASSERT(!glCanvas,"must be called before engineInit");glAntialias=a}function glDraw(a,b,c,d,e,f,g,k,h,m,n=0){ASSERT("number"==typeof m&&"number"==typeof n,"invalid color");(glInstanceCount>=gl_MAX_INSTANCES||glBatchAdditive!=glAdditive)&&glFlush();let l=glInstanceCount++*gl_INDICES_PER_INSTANCE;glPositionData[l++]=a;glPositionData[l++]=b;glPositionData[l++]=c;glPositionData[l++]=d;glPositionData[l++]=f;glPositionData[l++]=g;glPositionData[l++]=k;glPositionData[l++]=h;glColorData[l++]=m;glColorData[l++]=n;glPositionData[l++]=e}const engineName="LittleJS",engineVersion="1.11.6",frameRate=60,timeDelta=1/frameRate;let engineObjects=[],engineObjectsCollide=[],frame=0,time=0,timeReal=0,paused=!1;function setPaused(a){paused=a}let frameTimeLastMS=0,frameTimeBufferMS=0,averageFPS=0;const pluginUpdateList=[],pluginRenderList=[];function engineAddPlugin(a,b){ASSERT(!pluginUpdateList.includes(a));ASSERT(!pluginRenderList.includes(b));a&&pluginUpdateList.push(a);b&&pluginRenderList.push(b)}function engineInit(a,b,c,d,e,f=[],g=document.body){function k(n=0){var l=n-frameTimeLastMS;frameTimeLastMS=n;if(debug||showWatermark)averageFPS=lerp(.05,averageFPS,1e3/(l||1));n=debug&&keyIsDown("Equal");const p=debug&&keyIsDown("Minus");debug&&(l*=n?5:p?.2:1);timeReal+=l/1e3;frameTimeBufferMS+=paused?0:l;n||(frameTimeBufferMS=min(frameTimeBufferMS,50));h();if(paused){for(const r of engineObjects)r.parent||r.updateTransforms();inputUpdate();pluginUpdateList.forEach(r=>r());debugUpdate();c();inputUpdatePost()}else{l=0;0>frameTimeBufferMS&&-9<frameTimeBufferMS&&(l=frameTimeBufferMS,frameTimeBufferMS=0);for(;0<=frameTimeBufferMS;frameTimeBufferMS-=1e3/frameRate)time=frame++/frameRate,inputUpdate(),b(),pluginUpdateList.forEach(r=>r()),engineObjectsUpdate(),debugUpdate(),c(),inputUpdatePost();frameTimeBufferMS+=l}if(!headlessMode){mainCanvasSize=vec2(mainCanvas.width,mainCanvas.height);overlayContext.imageSmoothingEnabled=mainContext.imageSmoothingEnabled=!tilesPixelated;glPreRender();d();engineObjects.sort((r,x)=>r.renderOrder-x.renderOrder);for(var q of engineObjects)q.destroyed||q.render();e();pluginRenderList.forEach(r=>r());touchGamepadRender();debugRender();glCopyToContext(mainContext);showWatermark&&(overlayContext.textAlign="right",overlayContext.textBaseline="top",overlayContext.font="1em monospace",overlayContext.fillStyle="#000",q=engineName+" v"+engineVersion+" / "+drawCount+" / "+engineObjects.length+" / "+averageFPS.toFixed(1)+(glEnable?" GL":" 2D"),overlayContext.fillText(q,mainCanvas.width-3,3),overlayContext.fillStyle="#fff",overlayContext.fillText(q,mainCanvas.width-2,2),drawCount=0)}requestAnimationFrame(k)}function h(){if(!headlessMode){if(canvasFixedSize.x){mainCanvas.width=canvasFixedSize.x;mainCanvas.height=canvasFixedSize.y;const n=innerWidth/innerHeight,l=mainCanvas.width/mainCanvas.height;(glCanvas||mainCanvas).style.width=mainCanvas.style.width=overlayCanvas.style.width=n<l?"100%":"";(glCanvas||mainCanvas).style.height=mainCanvas.style.height=overlayCanvas.style.height=n<l?"":"100%"}else mainCanvas.width=min(innerWidth,canvasMaxSize.x),mainCanvas.height=min(innerHeight,canvasMaxSize.y);overlayCanvas.width=mainCanvas.width;overlayCanvas.height=mainCanvas.height;mainCanvasSize=vec2(mainCanvas.width,mainCanvas.height)}}function m(){new Promise(n=>n(a())).then(k)}ASSERT(!mainContext,"engine already initialized");ASSERT(Array.isArray(f),"pass in images as array");a||=()=>{};b||=()=>{};c||=()=>{};d||=()=>{};e||=()=>{};headlessMode?m():(g.style.cssText="margin:0;overflow:hidden;width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:#000;"+(canvasPixelated?"image-rendering:pixelated;":"")+"user-select:none;-webkit-user-select:none;"+(touchInputEnable?"touch-action:none;-webkit-touch-callout:none":""),g.appendChild(mainCanvas=document.createElement("canvas")),mainContext=mainCanvas.getContext("2d"),inputInit(),audioInit(),debugInit(),glInit(),g.appendChild(overlayCanvas=document.createElement("canvas")),overlayContext=overlayCanvas.getContext("2d"),mainCanvas.style.cssText=overlayCanvas.style.cssText="position:absolute",glCanvas&&(glCanvas.style.cssText="position:absolute"),h(),g=f.map((n,l)=>new Promise(p=>{const q=new Image;q.crossOrigin="anonymous";q.onerror=q.onload=()=>{textureInfos[l]=new TextureInfo(q);p()};q.src=n})),f.length||g.push(new Promise(n=>{textureInfos[0]=new TextureInfo(new Image);n()})),showSplashScreen&&g.push(new Promise(n=>{function l(){clearInput();drawEngineSplashScreen(p+=.01);1<p?n():setTimeout(l,16)}let p=0;console.log(`${engineName} Engine v${engineVersion}`);l()})),Promise.all(g).then(m))}function engineObjectsUpdate(){function a(b){if(!b.destroyed){b.update();for(const c of b.children)a(c)}}engineObjectsCollide=engineObjects.filter(b=>b.collideSolidObjects);for(const b of engineObjects)b.parent||(a(b),b.updateTransforms());engineObjects=engineObjects.filter(b=>!b.destroyed)}function engineObjectsDestroy(){for(const a of engineObjects)a.parent||a.destroy();engineObjects=engineObjects.filter(a=>!a.destroyed)}function engineObjectsCollect(a,b,c=engineObjects){const d=[];if(a)if(b instanceof Vector2)for(const e of c)isOverlapping(a,b,e.pos,e.size)&&d.push(e);else{b*=b;for(const e of c)a.distanceSquared(e.pos)<b&&d.push(e)}else for(const e of c)d.push(e);return d}function 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