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ca.js
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$( document ).ready( function() {
var running = false
var count = 0
var last_count = 0
$("#randomize").click(function() {
randomize()
})
$("#start").click(function() {
running = true
count = 0
last_count = 0
runit()
calc_fps()
})
$("#stop").click(function() {
running = false
})
function calc_fps() {
$("#fps").html(count-last_count)
last_count = count
if (running) setTimeout(calc_fps, 1000)
}
function runit() {
iterate()
count++
$("#counter").html(count)
if (running) setTimeout(runit, 0)
}
function randomize() {
var canvas = document.getElementById("canvas")
var context = canvas.getContext("2d")
var image = context.createImageData(canvas.height,canvas.width)
var img = new Image(image)
for (var i = 0; i < canvas.width; i++) {
for (var j = 0; j < canvas.height; j++) {
img.setRGB(i, j, [Math.random()*255,Math.random()*255,Math.random()*255])
}
}
image = img.getImage()
context.putImageData(image,0,0)
}
function iterate() {
var canvas = document.getElementById("canvas")
var context = canvas.getContext("2d")
var height = canvas.height
var width = canvas.width
var newImg = new Image(context.createImageData(width, height))
var oldImg = new Image(context.getImageData(0,0,width, height))
getNextImage(oldImg, newImg)
context.putImageData(newImg.getImage(),0,0)
}
function getNextImage(image, newImage) {
for (var i = 0; i < newImage.getWidth(); i++) {
for (var j = 0; j < newImage.getHeight(); j++) {
array = image.getLocal(i,j)
var red = 0
var grn = 0
var blu = 0
for (a = 0; a < 3; a++) {
for (b = 0; b < 3; b++) {
red += array[a][b][0]
grn += array[a][b][1]
blu += array[a][b][2]
}
}
///////////////////////////////////////////////////////////////////////////////
//new_red = 0
//new_grn = 0
//new_blu = 0
//if ((red / 9) > 250) {
// new_red = Math.random()*8
//} else {
// new_red = red/9 * (Math.random()/10 + 1)
//}
//
//if ((grn / 9) > 250) {
// new_grn = Math.random()*8
//} else {
// new_grn = grn/9 * (Math.random()/10 + 1)
//}
//
//if ((blu / 9) > 250) {
// new_blu = Math.random()*8
//} else {
// new_blu = blu/9 * (Math.random()/10 + 1)
//}
//newImage.setRGB(i, j, [new_red, new_grn, new_blu])
///////////////////////////////////////////////////////////////////////////////
if ((red > grn) && (red > blu)) {
if ((red /9) > 250 ) {
newImage.setRGB(i, j, [Math.random()*128, Math.random()*128+128, Math.random() * 255])
} else {
newImage.setRGB(i, j, [red / 8, Math.random() * 255 * .8, Math.random() * 255])
}
} else if ((grn > red) && (grn > blu)) {
if ((grn /9) > 250) {
newImage.setRGB(i, j, [Math.random() * 255, Math.random()*128, Math.random()*128+128])
} else {
newImage.setRGB(i, j, [Math.random() * 255, grn / 8, Math.random() * 255 * .8])
}
} else if ((blu > red) && (blu > grn)) {
if ((blu /9) > 250) {
newImage.setRGB(i, j, [Math.random()*128+128, Math.random() * 255, Math.random()*128])
} else {
newImage.setRGB(i, j, [Math.random() * 255 * .8, Math.random() * 255, blu / 8])
}
} else {
newImage.setRGB(i,j, image.getRGB(i,j))
}
///////////////////////////////////////////////////////////////////////////////
//if ((red > grn) && (red > blu)) {
// if ((red /9) > 250 ) {
// newImage.setRGB(i, j, [red / 8, 255, Math.random() * 255])
// } else {
// newImage.setRGB(i, j, [red / 8, Math.random() * 255 * .8, Math.random() * 255])
// }
//} else if ((grn > red) && (grn > blu)) {
// if ((grn /9) > 250) {
// newImage.setRGB(i, j, [Math.random() * 255, grn / 8, 255])
// } else {
// newImage.setRGB(i, j, [Math.random() * 255, grn / 8, Math.random() * 255 * .8])
// }
//} else if ((blu > red) && (blu > grn)) {
// if ((blu /9) > 250) {
// newImage.setRGB(i, j, [255, Math.random() * 255, blu / 8])
// } else {
// newImage.setRGB(i, j, [Math.random() * 255 * .8, Math.random() * 255, blu / 8])
// }
//} else {
// newImage.setRGB(i,j, image.getRGB(i,j))
//}
///////////////////////////////////////////////////////////////////////////////
//if ((red > grn) && (red > blu)) {
// newImage.setRGB(i,j,[red/8, Math.random()*255 *.8, Math.random()*255])
//} else if ((grn > red) && (grn > blu)) {
// newImage.setRGB(i,j,[Math.random()*255, grn/8, Math.random()*255*.8])
//} else if ((blu > red) && (blu > grn)) {
// newImage.setRGB(i,j,[Math.random()*255*.8, Math.random()*255, blu/8])
//} else {
// newImage.setRGB(i,j, image.getRGB(i,j))
//}
}
}
}
})