Canvas Buldings

Developer
Theun
Size
2,737 Kb
Views
42,504
  1. Canvas Buldings Previews
  2. Canvas Buldings HTML Codes
  3. Canvas Buldings CSS Codes
  4. Canvas Buldings JS Codes

How do I make an canvas buldings?

What is a canvas buldings? How do you make a canvas buldings? This script and codes were developed by Theun on 23 July 2022, Saturday.

Canvas Buldings Previews
IQ Test

Canvas Buldings - Script Codes HTML Codes

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

Canvas Buldings - Script Codes CSS Codes

body{ padding:0; margin:0; background-color: #ddd;
}
#world{ display:block;
}

Canvas Buldings - Script Codes JS Codes

!+-+-+!+-+-+!+-+-+!+-+-+!+-+-+!+-+-+!+-+-+!+-+-+!
function(d, w){ var FPS = 60; var TRAIL_PLAN = ["u","r","d","b","r","c"]; pointCopy = function(src, dst){ dst.x = src.x; dst.y = src.y; dst.z = src.z; return dst; }; Trail = function(pos, t, plan_i){ this.pos={x:0,y:0,z:0}; this.start={x:0,y:0,z:0}; this.goal={x:0,y:0,z:0}; this.start_time; this.take_time; this.vertexes = []; pointCopy(pos, this.pos); pointCopy(pos, this.start); pointCopy(pos, this.goal); this.plan_i = plan_i%TRAIL_PLAN.length || 0; this.sz = pos.z; this.setNextGoal(t); }; Trail.prototype.setNextGoal = function(t){ pointCopy(this.goal, this.start); this.plan_i = (this.plan_i+1)%TRAIL_PLAN.length; switch(TRAIL_PLAN[this.plan_i]){ case "r": this.goal.x += Math.random()*100+50; break; case "u": this.goal.y -= Math.random()*200+100; break; case "d": this.goal.y = 0; break; case "b": this.goal.z += Math.random()*1; break; case "c": this.goal.z = this.sz; break; default: break; } this.start_time = t; this.take_time = 100+Math.random()*100; this.vertexes.push(pointCopy(this.start, {x:0,y:0,z:0})); if(this.vertexes.length > 100){ this.vertexes.splice(0,this.vertexes.length-100); } }; Trail.prototype.update = function(t){ quadIn( t-this.start_time, this.start, this.goal, this.take_time, this.pos ); if(t-this.start_time > this.take_time){ this.setNextGoal(this.start_time+this.take_time); this.update(t); } }; Trail.prototype.draw = function(ctx, camera){ var i; var ps = {x:0, y:0}; ctx.beginPath(); if(perspective(this.vertexes[0], camera, ps)){	ctx.moveTo(ps.x, ps.y); } var x0 = ps.x; for(i=1; i<this.vertexes.length; i++){ if(perspective(this.vertexes[i], camera, ps)){	ctx.strokeStyle = "rgba(0,0,0,"+2/(this.vertexes[i].z-camera.z)+")";	ctx.lineTo(ps.x, ps.y);	ctx.stroke();	ctx.beginPath();	ctx.moveTo(ps.x, ps.y); } } if(perspective(this.pos, camera, ps)){	ctx.strokeStyle = "rgba(0,0,0,"+2/(this.pos.z-camera.z)+")";	ctx.lineTo(ps.x, ps.y);	ctx.stroke(); } }; quadIn = function(t, b, c, d, dst){ t /= d; dst.x = (c.x-b.x)*t*t+b.x; dst.y = (c.y-b.y)*t*t+b.y; dst.z = (c.z-b.z)*t*t+b.z; }; perspective = function(point, camera, dst){ var dz = point.z - camera.z; if(dz > 0){ dst.x = (point.x-camera.x)/dz; dst.y = (point.y-camera.y)/dz; return true; } return false; }; updateScene = function(ctx){ var i; var time_now = new Date().getTime(); var time_d = time_now-time_pre; for(i=0; i<trails.length; i++){	trails[i].update(time_now); } camera.x += (trails[0].pos.x-camera.x-50)*0.0002*time_d; camera.y += (trails[0].pos.y-camera.y-300)*0.00002*time_d; time_pre = time_now; }; drawScene = function(ctx){ var i; ctx.clearRect(-canvas.width/2, -canvas.height/2, canvas.width, canvas.height); for(i=0; i<trails.length; i++){	trails[i].draw(ctx, camera); } }; var canvas = d.getElementById("world"); var ctx = canvas.getContext("2d"); var trails = []; var i; var time_now = new Date().getTime(); var time_pre = time_now; for(i=0; i<8; i++){ trails.push(new Trail({x:Math.random()*50-25, y:Math.random()*50-25, z:i}, time_now, i)); } camera = {x:0, y:0, z:-2}; canvas.width = w.innerWidth; canvas.height = w.innerHeight; ctx.translate(canvas.width/2, canvas.height/2); setInterval(function(){ updateScene(); drawScene(ctx); }, 1000/FPS);
}(document, window);
Canvas Buldings - Script Codes
Canvas Buldings - Script Codes
Home Page Home
Developer Theun
Username tjoen
Uploaded July 23, 2022
Rating 3.5
Size 2,737 Kb
Views 42,504
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