const std = @import("std");
const SDL = @import("sdl2");

const color = @import("../color.zig");
const Cell = @import("Cell.zig");
const utils = @import("../utils.zig");

const range = utils.range;

const Self = @This();

pub const ncolumns = 10;
pub const nrows = 30;
pub const buffer = 10;

cells: [nrows][ncolumns]Cell,
topped: bool = false,

pub fn init() Self {
    var self = Self{
        .cells = undefined,
    };

    for (self.cells) |_, i| {
        for (self.cells[i]) |_, j| {
            self.cells[i][j] = Cell.init();
        }
    }

    return self;
}

pub fn clearLines(self: *Self) void {
    for (self.cells) |_, y| {
        for (self.cells[y]) |cell_x, x| {
            if (cell_x.free) {
                break;
            } else {
                // Reached the end of the column?
                if (x == self.cells[y].len - 1) {
                    // Delete current row and bring the others down
                    for (self.cells[1..y]) |_, i| {
                        self.cells[y - i] = self.cells[y - i - 1];
                    }
                }
            }
        }
    }
}