const { writeFileSync } = require('fs');

const xMax = 1080.0;
const yMax = 1920.0;

const framesMin = 30 * 7;
const framesMax = 30 * 60;

const distanceMax = 30.0;

const buffer = 50;

let xStart = 0;
let yStart = 0;
let frames = framesMin;
let distance = 15.0;
let angle = 45;

let angles = [ 45, 45 + 90, 45 + 180, 45 + 270];

let searchHit = 1;

function simulate (x, y, frames, angle, distance) {
	for (let i = 0; i < frames; i++) {
		x = x + distance * Math.cos(angle * Math.PI / 180.0);
		y = y + distance * Math.sin(angle * Math.PI / 180.0);
		if (x >= 1080.0 || x <= 0.0) {
			angle = 180 - angle;
		}
		if (x >= 1080.0) x = 1080.0;
		if (x <= 0.0) x = 0.0;
		if (y >= 1920.0 || y <= 0.0) {
			angle = 360 - angle;
		}
		if (y >= 1920.0) y = 1920.0;
		if (y <= 0.0) y = 0.0;
	}
	return { x, y, angle }
}

function simulateAll () {
	let res;
	let attempts = 0;
	let startTime;
	let duration;
	let secondsLeft;
	for (let x = buffer; x < xMax-buffer; x++ ) {
		for (let y = buffer; y < yMax-buffer; y++) {
			startTime = +new Date();
			console.time(`${x},${y}`)
			for (let a = 0; a < 4; a++) {
				for (let d = 0; d < 10; d++) {
					for (let frames = framesMin; frames < framesMax + 1; frames++) {
						angle = angles[a];
						res = simulate(x, y, frames, angle, distance + d);
						attempts++;
						if (Math.abs(res.x - x) < searchHit && Math.abs(res.y - y) < searchHit && res.angle == angle) {
							console.log(`#${attempts}`);
							console.log(`startx = ${x} endx = ${res.x}`);
							console.log(`starty = ${y} endy = ${res.y}`);
							console.log(`startangle = ${angle}`);
							console.log(`frames = ${frames}`);
							console.log(`distance = ${distance + d}`);
							console.log(`searchHit = ${searchHit}`);
							console.log("++++++++++++++++++++++++++++++++++++++++");
							return res;
						}
					}
				}
			}
			console.timeEnd(`${x},${y}`)
			duration = ((+new Date()) - startTime);
			secondsLeft = (duration / 1000) * (x - (xMax - buffer)) * (y - (yMax - buffer));
			console.log(`Minutes Left: ${Math.round(secondsLeft / 60)}`);
		}
	}
}

function main () {
	let res;
	for (let i = 0; i < 7; i++) {
		res = simulateAll();
		searchHit = Math.floor(searchHit / 2.0);
		if (searchHit === 0) process.exit()
	}
}

main();