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conway_.js
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conway_.js
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var mainCanvas = document.getElementById("viewport");
var mainContext = mainCanvas.getContext("2d");
var canvasWidth = mainCanvas.width;
var canvasHeight = mainCanvas.height;
var pixel_x = canvasWidth / 20;
var pixel_y = canvasWidth / 20;
var requestAnimationFrame = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame;
Array.matrix = function (numrows, numcols, initial) {
var arr = [];
for (var i = 0; i < numrows; ++i) {
var columns = [];
for (var j = 0; j < numcols; ++j) {
columns[j] = initial;
}
arr[i] = columns;
}
return arr;
}
function draw_screen() {
var xi = 0;
var yi = 0;
for (x = 0; x < canvasWidth; x += 20) {
yi = 0;
for (y = 0; y < canvasHeight; y += 20) {
if (board[xi][yi] === 1) {
ctx.beginPath();
ctx.rect(x, y, 20, 20);
ctx.fill();
board[xi][yi] = 0;
} else {
board[xi][yi] = 1;
}
yi++;
}
xi++;
}
requestAnimationFrame(draw_screen);
}
var my_board = Array.matrix(pixel_x, pixel_y, 1);
draw_screen(mainCanvas, my_board);