Created
September 20, 2023 12:33
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Make spritesheet of bunch of images
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<canvas width="4096" height="3072" id=canvas></canvas> | |
<script> | |
let ctx = canvas.getContext`2d`; | |
window.onload = async () => { | |
let grid = 12; | |
canvas.width = grid*260; // grid * tile width | |
canvas.height = grid*220; // grid * tile height | |
for(let i=0;i<grid*grid;i++) { | |
let image = await loadImage(`render_${(""+i).padStart(5,"0")}.png`); | |
let idx = i%grid, idy = i/grid|0; | |
ctx.drawImage(image, idx*image.width, idy*image.height); | |
} | |
} | |
function loadImage(src) { | |
return new Promise((resolve, reject) => { | |
let img = new Image(); | |
img.onload = () => resolve(img); | |
img.onerror = reject; | |
img.src = src; | |
}); | |
} | |
</script> |
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