/*

How to run this program:

	toyrepl -n -t scripts/level.toy

How to move around:

	move(up);
	move(down);
	move(left);
	move(right);

*/

//constants
var WIDTH: int const = 12;
var HEIGHT: int const = 12;

//WIDTH * HEIGHT in size
var tiles: [[int]] const = [
	[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
	[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
	[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
	[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
	[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
	[1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1],
	[1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1],
	[1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1],
	[1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1],
	[1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1],
	[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
	[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] //BUG: map is twisted along this diagonal
];

var tileset: [int: string] const = [
	0: "  ",
	1: "X "
];

//variables
var posX: int = 4;
var posY: int = 4;

//functions
fn draw() {
	for (var j: int = 0; j < HEIGHT; j++) {
		for (var i: int = 0; i < WIDTH; i++) {
			//draw the player pos
			if (i == posX && j == posY) {
				print "O ";
				continue;
			}

			print tileset[ tiles[i][j] ];
		}
		print "\n";
	}
	print "\n";
}

fn moveRelative(xrel: int, yrel: int) {
	if (xrel > 1 || xrel < -1 || yrel > 1 || yrel < -1 || (xrel != 0 && yrel != 0)) {
		print "too fast!\n";
		return;
	}

	if (tiles[posX + xrel][posY + yrel] > 0) {
		print "Can't move that way\n";
		return;
	}

	posX += xrel;
	posY += yrel;

	draw();
}

//wrap for easy use
var up: [int] const = [0, -1];
var down: [int] const = [0, 1];
var left: [int] const = [-1, 0];
var right: [int] const = [1, 0];

fn move(dir: [int] const) {
	return moveRelative(dir[0], dir[1]);
}

//initial display
move([0, 0]);