100 lines
1.5 KiB
JavaScript
100 lines
1.5 KiB
JavaScript
let n = 0, randomX = [], randomY = [], randomS = [];
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var rn;
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let tree
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let branchLength = 100
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let minimumWeight = 0.03
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let iteration = 15
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function preload() {
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createVRCanvas();
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}
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function setup() {
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setVRBackgroundColor(200, 200, 200);
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noStroke();
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//calculate random positions for trees
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for(let i=0; i<iteration; ++i) {
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randomX[i] = random(-175, 175);
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randomY[i] = random(-175, 175);
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randomS[i] = random(15, 20);
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}
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angleMode(DEGREES)
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//random seed for each respawn
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rn = random(1,1000)
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}
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function draw() {
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n = n + deltaTime/30;
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setViewerPosition(0, 10, 350-n);
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//respawn
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if(n>=550){
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n=0;
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setup();
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}
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//draw plane
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noStroke();
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rotateX(90);
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fill(0, 160, 0);
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plane(5000, 5000);
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fill(128, 128, 0);
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rotateX(-90)
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//draw trees
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for(let i = 0; i<iteration;i++){
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randomSeed(rn+i)
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translate(randomX[i],0,randomY[i])
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branch(randomS[i]);
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translate(0,-randomS[i],0)
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translate(-randomX[i],0,-randomY[i])
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}
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}
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function branch(len) {
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strokeWeight(map(len,10,30,0.5,5))
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stroke(70,40,20)
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line(0,0,0,0,len,0)
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translate(0,len,0)
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if(len > 10 ){
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//stem/branch
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for(var i=0;i<3;i++){
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rotateY(random(100,140));
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push();
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rotateZ(random(20,50));
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branch(len *0.7);
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pop();
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}
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} else {
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//leaf
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var r = 80 + random(-20,20)
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var g = 120+ random(-20,20)
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var b = 40+ random(-20,20)
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fill(r,g,b,200);
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noStroke()
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translate(5,0,0)
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rotateZ(90)
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triangle(-5,-5,5,5,-5,5)
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}
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}
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