canvas-cave-path Draw cave walls along a path in a html canvas. Installation npm install canvas-cave-path Example var cave = require('canvas-cave-path') , canvas = document.getElementById('my-canvas') , ctx = canvas.getContext('2d') ctx.clearRect(0, 0, canvas.width, canvas.height)ctx.translate(200, 200) ctx.lineWidth = 2ctx.strokeStyle = 'red' cave(ctx, [ [0, 0] , [200, 0] , [250, 100] , [250, 200] ])