71 lines
1.8 KiB
TypeScript
71 lines
1.8 KiB
TypeScript
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import { readFileSync } from "fs"
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import { argv, exit } from "process"
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class LanternFish {
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days: number
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isNew: boolean = false
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justBirthed: boolean = false
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constructor(_days: number) {
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this.days = _days
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this.isNew = true
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this.justBirthed = false
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}
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eligibileForNewFish(): boolean {
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return this.days == 0
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}
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passDay() {
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if (this.isNew) {
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this.isNew = false
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return
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}
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if (this.justBirthed) {
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this.justBirthed = false
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return
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}
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this.days--
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}
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createNew(): LanternFish {
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this.days = 6
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this.justBirthed = true
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return new LanternFish(8)
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}
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}
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function createBaseFishPopulation(baseDays: number[]): LanternFish[] {
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const fish = baseDays.map(x => new LanternFish(x))
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fish.map(x => x.isNew = false)
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return fish
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}
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function simulateDay(fish: LanternFish[]): LanternFish[] {
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const newFish = fish.filter(x => x.eligibileForNewFish()).map(x => x.createNew())
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const fishesToHandle = [...fish, ...newFish]
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fishesToHandle.forEach(x => x.passDay())
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return fishesToHandle
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}
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function iterateOverGivenDaySpan(days: number, fish: LanternFish[]): LanternFish[] {
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for (let i = 0; i < days; i++) {
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fish = simulateDay(fish)
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//console.log(`Day ${i + 1}: ${fish.length}: ${fish.map(printAllFishDays)}`)
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console.log(`Day ${i + 1}|Fishes: ${fish.length}`)
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}
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return fish
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}
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function printAllFishDays(fish: LanternFish): string {
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return fish.days.toString()
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}
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function main(): void {
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console.log(JSON.stringify(argv))
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if (argv[2] && argv[2] != "") {
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const values = readFileSync(argv[2], "utf8")
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const inputs = values.replace('\n', '').split(',').map(x => parseInt(x))
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let fish = createBaseFishPopulation(inputs)
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//console.log(`Day 0,${JSON.stringify(fish)}`)
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fish = iterateOverGivenDaySpan(256, fish)
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console.log(`Fishes ${fish.length}`)
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} else {
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console.log("No filename")
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exit()
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}
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}
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main()
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