window.onload=function(){ cha=0;timer=0;txt="Welcome pilot to the\ngreatest mission you\nhave embarked on.\n your mission now is to save\nthe earth.\nWe have detected alien\nspaceships coming towards earth.\nYou are our last hope,\nMay luck be on your side.\nSafe battle pilot.\nit will be you and just them.\nBLESS✈️"; body=document.getElementsByTagName("body")[0]; start=document.getElementById("start"); pre=document.querySelector("pre"); ins=document.getElementById("instructions"); ins.innerHTML="👨🏻‍✈️NEXT"; z=setInterval(write,80); ins.addEventListener("click", function(){ clearInterval(z); body.removeChild(start); load(); } ) } function write(){ pre.innerHTML+=txt[cha]; if(chaShip.y+30*k){ assistSwitch=false; } } else{ assist.y-=1*k; if(assist.y0){ Camera.x-=4; } else clearInterval(t2); } function moveandshoot(){ if(event.touches[0].pageXcanvas.height/1.3){ ThunderWave(); } else if(event.touches.length==1) { var x=event.touches[0].pageX; var y=event.touches[0].pageY; var angle=findAngle(x,y,Ship.x,Ship.y,3.1); if(angle>-0.9&&angle<0.9)Ship.rotate=angle-1.5; bulletrotate=Ship.rotate; Ship.createBullet(); } else{ ShockWave(); } } function move(){ if(event.touches.length==1) { var x=event.touches[0].pageX; var y=event.touches[0].pageY; var angle=findAngle(x,y,Ship.x,Ship.y,3.1); if(angle>-0.9&&angle<0.9)Ship.rotate=angle-1.5;} } function explode(x,y,z){ row = 0; lft=0; col =0; isExplode.state=true; isExplode.x[isExplode.no]=x; isExplode.y[isExplode.no]=y; isExplode.size[isExplode.no]=z; setTimeout(function(){ isExplode.state=false; isExplode.no--; },1000); isExplode.no++; } function spawn(posX,posY,width,height,rotate,body,shoot){ this.x=posX; this.y=posY; this.width=width; this.height=height; this.rotate=rotate; this.updateBody=body; this.shoot=shoot; } function rand(min,max){ return Math.floor(Math.random()*(max-min)+min); } function findAngle(a,b,c,d,deg){ this.mx=a-c; this.my=b-d; this.angle=Math.atan2(this.my,this.mx)*deg/Math.PI; return this.angle; } function findDistance(a,b,c,d){ this.mx=a-c; this.my=b-d; this.dist=Math.sqrt(mx*mx+my*my); return this.dist; } function cam(xView,yView,depth,render){ this.x=xView this.y=yView; this.render=render; } Ship=new spawn(k*220,k*200,k*60,k*60,-1.5); Camera=new cam(120,0); Ship.updateBody=function(obj){ ctx.save(); ctx.translate(obj.x,obj.y); ctx.rotate(obj.rotate); ctx.drawImage(shipImg,-obj.width/2,-obj.height/2,obj.width,obj.height); ctx.restore(); } Camera.render=function(){ ctx.save(); ctx.translate(Camera.x*k,Camera.y*k); UpdateBackground(); Ship.updateBody(Ship); Ship.shoot("bullet"); UpdateEnemies(); UpdateHp(); ctx.restore(); } Ship.shoot=function(type){ if(type=="bullet") { for(var i=0;i0) { for(var j=0;jEnemies[d].x-Enemies[d].type.width/2&&bullet[j].xEnemies[d].y-Enemies[d].type.width/2 &&bullet[j].y200*k){ bullet.shift(); }} } } } }//if type==bullet } Ship.createBullet=function(){ bullet.push({rad:0,angle:0,x:0,y:0}); } function selectType(type){ if(type==0) { return{ defhp:80,hp:80,strength:70,speed:36,img:enemiesImg[0],width:120*k }} if(type==1) { return{ defhp:26,hp:26,strength:30,speed:100,img:enemiesImg[1],width:40*k }} if(type==2) { return{ defhp:60,hp:60,strength:50,speed:50,img:enemiesImg[2],width:90*k } } if(type==3) { return{ defhp:70,hp:70,strength:60,speed:46,img:enemiesImg[3],width:140*k } } if(type==4) { return{ defhp:40,hp:40,strength:50,speed:76,img:enemiesImg[4],width:60*k } } } function createEnem(){ enemCount++; arr=[1,1,4,4,2,2,0,1,3,1,1,2,1,2,4, 1,0,1,1,3,4]; Enemies.push( { x:-70*k,y:rand(10*k,canvas.height-30*k), rotate:0, radius:0, defX:0,defY:0, type:selectType(arr[rand(0,20)]) } ); Enemies[Enemies.length-1].defX=Enemies[Enemies.length-1].x; Enemies[Enemies.length-1].defY=Enemies[Enemies.length-1].y; Enemies[Enemies.length-1].rotate=findAngle(Enemies[Enemies.length-1].x, Enemies[Enemies.length-1].y,Ship.x,Ship.y,3.1)-1.5; if(enemCount3) { if(Enemies[i].xEnemies[i].type.defhp/4){ ctx.fillStyle="blue";} else{ ctx.fillStyle="red"; } ctx.rect( Enemies[i].x-30*k,Enemies[i].y+Enemies[i].type.width/2, Enemies[i].type.hp*k,6*k ) ctx.fill(); } } function ShockWave(){ if(Shock.reload>2){ if("vibrate" in navigator)navigator.vibrate(400); Shock.exist=true; Shock.rad=0; setTimeout(function(){ Shock.exist=false; Shock.reload=0; },4400); } } function UpdateShock(){ Shock.rad+=1*k; ctx.beginPath(); ctx.strokeStyle="red"; ctx.lineWidth=4; ctx.arc(Ship.x,Ship.y,Shock.rad,Ship.rotate,Ship.rotate+3.1,true); ctx.stroke(); ctx.beginPath(); ctx.strokeStyle="red"; ctx.lineWidth=2; if(Shock.rad>40*k){ ctx.arc(Ship.x,Ship.y,Shock.rad-40*k,Ship.rotate,Ship.rotate+3.1,true); } ctx.stroke(); for(var i=0;ia){ Enemies[i].type.hp=0; } } } function ThunderWave(){ index=0; if(Thunder.reload>2){ Thunder.reload=0; Thunder.exist=true; setTimeout(function(){ Thunder.exist=false; },5400); thu=setInterval(UpdateThunder,1100); } } function UpdateThunder(){ if("vibrate" in navigator)navigator.vibrate(100); explode(Enemies[index].x-Enemies[index].type. width/2,Enemies[index].y-Enemies[index].type.width/2,Enemies[index].type.width); Enemies[index].type.hp-=(Enemies[index].type.defhp)/2; if(index

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