39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
// m11 pong model: the same ideas as the snake model, for a different game.
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/** @typedef {{ball: {x: number, y: number}, vel: {dx: number, dy: number}, player: number, cpu: number,
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* held: {up: boolean, down: boolean}, score: {player: number, cpu: number},
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* status: 'Playing'|'Over', seed: number, frame: number}} PongState */
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// The court, in cells. `player` and `cpu` are the y of the top cell of each paddle.
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export const W = 80
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export const H = 50
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/** Pixels per cell. */
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export const PCELL = 8
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/** Paddle height in cells. */
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export const PADDLE = 8
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/** Column of the player's paddle (left) and the cpu's paddle (right). */
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export const PLAYER_X = 2
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export const CPU_X = 77
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/** Points needed to win the match. */
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export const WIN = 5
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export const initialPong = (seed) => ({
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ball: { x: 40, y: 25 },
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vel: { dx: 1, dy: 1 },
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player: 21,
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cpu: 21,
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held: { up: false, down: false },
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score: { player: 0, cpu: 0 },
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status: 'Playing',
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seed,
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frame: 0,
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})
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/** Everything that can happen in a match, as data. */
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export const PongAction = {
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Press: (key) => ({ tag: 'Press', key }),
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Release: (key) => ({ tag: 'Release', key }),
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Frame: { tag: 'Frame' },
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Restart: { tag: 'Restart' },
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}
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