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20 lines
653 B
20 lines
653 B
const state = new Float32Array(100 * 100 * 2) |
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const [canvas] = document.getElementsByTagName('canvas') |
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const ctx = canvas.getContext('2d') |
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const memo = fn => (c => a => c[a] || (c[a] = fn(a)))(Object.create(null)) |
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const toHex = memo(color => '#'+ `00000${color.toString(16)}`.slice(-6)) |
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export const colorize = (x, y, color) => { |
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ctx.fillStyle = toHex(color) |
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ctx.fillRect(x * 12, y * 12, 12, 12) |
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} |
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export const move = (x, y, color, turn) => { |
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const index = (x * 100 + y) * 2 |
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if (state[index]) return state[index] |
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state[index] = turn |
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colorize(x, y, color) |
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} |
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export const update = () => {} |
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export const reset = () => {}
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