25 lines
1.1 KiB
JavaScript
25 lines
1.1 KiB
JavaScript
const assert = require('node:assert/strict')
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const fs = require('node:fs')
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const snake = require('../src/common/snake.js')
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let seed=83971
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const rand=()=>{seed=(Math.imul(seed,1664525)+1013904223)>>>0;return seed/4294967296}
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const dirs=[{x:1,y:0},{x:0,y:1},{x:-1,y:0},{x:0,y:-1}]
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let moves=0, seams=0
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for(const mode of ['classic','wrap']) for(let game=0;game<1000;game++) {
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let cells=snake.initialSnake(),dir=dirs[0]
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for(let tick=0;tick<100;tick++) {
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dir=snake.turn(dir,dirs[Math.floor(rand()*4)])
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const h=cells[0]
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const food=rand()<0.3?{x:(h.x+dir.x+16)%16,y:(h.y+dir.y+16)%16}:{x:0,y:0}
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const r=snake.step(cells,dir,food,16,mode)
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if(!r.alive)break
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if(Math.abs(r.snake[0].x-h.x)>1||Math.abs(r.snake[0].y-h.y)>1)seams++
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cells=r.snake
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assert.equal(new Set(cells.map(c=>c.x+','+c.y)).size,cells.length)
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for(const c of cells)assert.ok(c.x>=0&&c.x<16&&c.y>=0&&c.y<16)
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for(const name of snake.renderPieces(cells,dir,16))assert.ok(fs.existsSync(require('node:path').join(__dirname,'../src/common/tex',name+'.png')),name)
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moves++
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}
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}
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console.log(JSON.stringify({randomizedValidMoves:moves,edgeCrossings:seams}))
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