diff options
Diffstat (limited to 'js/AutoHarmonograph.js')
| -rw-r--r-- | js/AutoHarmonograph.js | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/js/AutoHarmonograph.js b/js/AutoHarmonograph.js index b4158db..95eb357 100644 --- a/js/AutoHarmonograph.js +++ b/js/AutoHarmonograph.js @@ -24,7 +24,7 @@ var Pendulum = function() this.p = random(-PDIF, PDIF)+basepx; else this.p = random(-PDIF, PDIF)+basepy; - + pendulums.push(this); } @@ -63,16 +63,22 @@ function calculate() function setup() { - document.getElementById("npendulums").value = 10; - document.getElementById("DMAX").value = DMAX; + createCanvas(600, 600); } function start() { - + $("#start").prop("disabled", true); createCanvas(800, 800); frameRate(1000); - DMAX = document.getElementById("DMAX").value; + DMAX = parseFloat($("#DMAX").val()); + var npendulums = parseInt($("#npendulums").val()); + + if (isNaN(DMAX) || isNaN(npendulums)) + { + $("#Error").html("Please enter a valid number."); + } + basepx = random(PMAX); basepy = random(PMAX); Ax = random(AMAX); @@ -81,12 +87,12 @@ function start() fy = random(FMAX); dx = random(DMIN, DMAX); dy = random(DMIN, DMAX); - + pendulums = []; - - for (var i = 0; i < document.getElementById("npendulums").value; i++) + + for (var i = 0; i < npendulums; i++) new Pendulum(); - + } function saveCanvas() @@ -100,8 +106,8 @@ function draw() curr = calculate(); if (t !== 0) line(pp[0], pp[1], curr[0], curr[1]); - - + + t++; pp = curr; } |