Road

Developer
Scott R McGann
Size
3,359 Kb
Views
14,168
  1. Road Previews
  2. Road HTML Codes
  3. Road CSS Codes
  4. Road JS Codes

How do I make an road?

What is a road? How do you make a road? This script and codes were developed by Scott R McGann on 11 November 2022, Friday.

Road Previews
IQ Test

Road - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Road</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas id="canvas"></canvas> <script src="js/index.js"></script>
</body>
</html>

Road - Script Codes CSS Codes

html,body{	margin:0px;	width:100%;	height:100%;	overflow:hidden; background:#000;
}
#canvas{	position:absolute;	width:100%;	height:100%;
}

Road - Script Codes JS Codes

function project3D(x,y,z,vars){	var p,d;	x-=vars.camX;	y-=vars.camY;	z-=vars.camZ;	p=Math.atan2(x,z);	d=Math.sqrt(x*x+z*z);	x=Math.sin(p-vars.yaw)*d;	z=Math.cos(p-vars.yaw)*d;	p=Math.atan2(y,z);	d=Math.sqrt(y*y+z*z);	y=Math.sin(p-vars.pitch)*d;	z=Math.cos(p-vars.pitch)*d;	var rx1=-9;	var ry1=1;	var rx2=9;	var ry2=1;	var rx3=0;	var ry3=0;	var rx4=x;	var ry4=z;	var uc=(ry4-ry3)*(rx2-rx1)-(rx4-rx3)*(ry2-ry1);	var ua=((rx4-rx3)*(ry1-ry3)-(ry4-ry3)*(rx1-rx3))/uc;	var ub=((rx2-rx1)*(ry1-ry3)-(ry2-ry1)*(rx1-rx3))/uc;	if(!z)z=0.000000001;	if(ua>0&&ua<1&&ub>0&&ub<1){	return {	x:vars.cx+(rx1+ua*(rx2-rx1))*vars.scale,	y:vars.cy+y/z*vars.scale,	d:(x*x+y*y+z*z)	};	}else{	return { d:-1 };	}
}
function segVert(x,y,z){	this.x=x;	this.y=y;	this.z=z;
}
function Seg(x1,y1,z1,x2,y2,z2,color,alpha,weight){	this.a=new segVert(x1,y1,z1);	this.b=new segVert(x2,y2,z2);	this.color=color;	this.alpha=alpha;	this.weight=weight;
}
function elevation(x,y,z){	var dist = Math.sqrt(x*x+y*y+z*z);	if(dist && z/dist>=-1 && z/dist <=1) return Math.acos(z / dist);	return 0.00000001;
}
function rgb(col){	col += 0.000001;	var r = parseInt((0.5+Math.sin(col)*0.5)*16);	var g = parseInt((0.5+Math.cos(col)*0.5)*16);	var b = parseInt((0.5-Math.sin(col)*0.5)*16);	return "#"+r.toString(16)+g.toString(16)+b.toString(16);
}
function interpolateColors(RGB1,RGB2,degree){	var w2=degree;	var w1=1-w2;	return [w1*RGB1[0]+w2*RGB2[0],w1*RGB1[1]+w2*RGB2[1],w1*RGB1[2]+w2*RGB2[2]];
}
function rgbArray(col){	col += 0.000001;	var r = parseInt((0.5+Math.sin(col)*0.5)*16);	var g = parseInt((0.5+Math.cos(col)*0.5)*16);	var b = parseInt((0.5-Math.sin(col)*0.5)*16);	return [r, g, b];
}
function colorString(arr){	var r = parseInt(arr[0]);	var g = parseInt(arr[1]);	var b = parseInt(arr[2]);	return "#"+r.toString(16)+g.toString(16)+b.toString(16);
}
function process(vars){	var p,d,t;	p = Math.atan2(vars.camX, vars.camZ);	d = Math.sqrt(vars.camX * vars.camX + vars.camZ * vars.camZ);	//d -= Math.sin(vars.frameNo / 80) / 20;	t = Math.cos(vars.frameNo / 50) / 50;	vars.camX = Math.sin(p + t) * d;	vars.camZ = Math.cos(p + t) * d;	vars.yaw = Math.PI + p + t;	t = vars.frameNo / 50;	vars.camY = -8-Math.cos(p + t) *10;	vars.pitch = elevation(vars.camX, vars.camZ, vars.camY) - Math.PI / 2;	if(!vars.offset){	for(var i=-5;i<=5;++i){	var x=i*4;	var z=100;	var s=1.75-Math.cos(Math.PI*2/11*i+vars.frameNo/20)*1.725;	var c=s;	spawnFloorBlock(x,12,z,s,c,vars);	spawnCeilingBlock(x,-12,z,s,c,vars);	}	}	var speed=1.25+Math.sin(vars.frameNo/20)*1.2;	vars.offset-=speed;	for(var i=0;i<vars.shapes.length;++i){	vars.shapes[i].z-=speed;	if(vars.shapes[i].z<-100)vars.shapes.splice(i,1);	}	if(vars.offset<-12)vars.offset=0;
}
function draw(vars){	vars.ctx.globalAlpha=.85;	vars.ctx.fillStyle="#000";	vars.ctx.fillRect(0, 0, canvas.width, canvas.height);	for(var i=vars.shapes.length-1;i>=0;--i){	for(var j=0;j<vars.shapes[i].segs.length;++j){	var x=vars.shapes[i].x+vars.shapes[i].segs[j].a.x;	var y=vars.shapes[i].y+vars.shapes[i].segs[j].a.y;	var z=vars.shapes[i].z+vars.shapes[i].segs[j].a.z;	var pointa=project3D(x,y,z,vars);	if(pointa.d != -1){	var x=vars.shapes[i].x+vars.shapes[i].segs[j].b.x;	var y=vars.shapes[i].y+vars.shapes[i].segs[j].b.y;	var z=vars.shapes[i].z+vars.shapes[i].segs[j].b.z;	var pointb=project3D(x,y,z,vars);	if(pointb.d != -1){	vars.ctx.strokeStyle=colorString(interpolateColors(rgbArray(1+Math.PI-vars.shapes[i].c),[0,15,2],.5+Math.sin(vars.frameNo/20)/2));	vars.ctx.globalAlpha = 1 - Math.pow(vars.shapes[i].z / 100, 2);	vars.ctx.lineWidth=1+2000/(1+pointa.d);	vars.ctx.beginPath();	vars.ctx.moveTo(pointa.x,pointa.y);	vars.ctx.lineTo(pointb.x,pointb.y);	vars.ctx.stroke();	}	}	}	}
}
function transform(shape,scaleX,scaleY,scaleZ){	for(var i=0;i<shape.segs.length;++i){	shape.segs[i].a.x*=scaleX;	shape.segs[i].a.y*=scaleY;	shape.segs[i].a.z*=scaleZ;	shape.segs[i].b.x*=scaleX;	shape.segs[i].b.y*=scaleY;	shape.segs[i].b.z*=scaleZ;	}
}
function loadCube(x,y,z,lineWidth){	var shape={};	shape.x=x;	shape.y=y;	shape.z=z;	shape.segs=[];	shape.segs.push(new Seg(-1,-1,-1,1,-1,-1));	shape.segs.push(new Seg(1,-1,-1,1,1,-1));	shape.segs.push(new Seg(1,1,-1,-1,1,-1));	shape.segs.push(new Seg(-1,1,-1,-1,-1,-1));	shape.segs.push(new Seg(-1,-1,1,1,-1,1));	shape.segs.push(new Seg(1,-1,1,1,1,1));	shape.segs.push(new Seg(1,1,1,-1,1,1));	shape.segs.push(new Seg(-1,1,1,-1,-1,1));	shape.segs.push(new Seg(-1,-1,-1,-1,-1,1));	shape.segs.push(new Seg(1,-1,-1,1,-1,1));	shape.segs.push(new Seg(1,1,-1,1,1,1));	shape.segs.push(new Seg(-1,1,-1,-1,1,1));	shape.lineWidth=lineWidth;	return shape;
}
function spawnFloorBlock(x,y,z,s,c,vars){	vars.shapes.push(loadCube(x,y-s,z,0));	vars.shapes[vars.shapes.length-1].c=c;	transform(vars.shapes[vars.shapes.length-1],1,s,1);
}
function spawnCeilingBlock(x,y,z,s,c,vars){	vars.shapes.push(loadCube(x,y+s,z,0));	vars.shapes[vars.shapes.length-1].c=c;	transform(vars.shapes[vars.shapes.length-1],1,s,1);
}
function frame(vars) {	if(vars === undefined){	var vars={};	vars.canvas = document.querySelector("canvas");	vars.ctx = vars.canvas.getContext("2d");	vars.canvas.width = document.body.clientWidth;	vars.canvas.height = document.body.clientHeight;	window.addEventListener("resize", function(){	vars.canvas.width = document.body.clientWidth;	vars.canvas.height = document.body.clientHeight;	vars.cx=vars.canvas.width/2;	vars.cy=vars.canvas.height/2;	loadScene(vars);	}, true);	vars.frameNo=0;	vars.camX = 0;	vars.camY = 0;	vars.camZ = -50;	vars.pitch = 0;	vars.yaw = 0;	vars.cx=vars.canvas.width/2;	vars.cy=vars.canvas.height/2;	vars.scale=700;	vars.shapes=[];	vars.offset=0;	}	vars.frameNo++;	requestAnimationFrame(function() {	frame(vars);	});	process(vars);	draw(vars);
}
frame();
Road - Script Codes
Road - Script Codes
Home Page Home
Developer Scott R McGann
Username cantelope
Uploaded November 11, 2022
Rating 4.5
Size 3,359 Kb
Views 14,168
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Scott R McGann (cantelope) Script Codes
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