nand2tetris/projects/Tables/Table.jack

class Table {
    field int selX, selY, cellChars, charHeight, charWidth, horCells, verCells, cellWidth, numCells;
    field Array cellsArr;
    field String alphabet;

    constructor Table new() {
        var int i, x, y;
        var bool stopX, stopY;

        var Cell cell;
        let cellChars = 5;
        let charWidth = 8;
        let charHeight = 11;
        let horCells = 11;
        let verCells = 22;
        let cellWidth = (charWidth * cellChars);

        let numCells = horCells * verCells;

        let cellsArr = Array.new(numCells);

        let stopX = false;
        let x = 0;
        let y = 0;

        while (~stopX) {
            if(y < verCells) {
                let i = (x * verCells) + y;
                
                let cellsArr[i] = Cell.new(x, y, cellChars, i);
                let cell = cellsArr[i];
                do cell.draw();

                let y = y + 1;
            }

            if(y = verCells) {
                let y = 0;
                let x = x + 1;
            }

            if (x = horCells) {
                let stopX = true;
            }
        }


        let alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

        //do drawTable();
        do printHeader();

        return this;
    }

    method void drawTable() {
        var int i;

        let i = 1;
        while(i < (horCells + 1)) {
            do Screen.drawLine((i * cellWidth) - 2, 0, (i * cellWidth) - 2, 255);
            let i = i + 1;
        }

        let i = 1;
        while(i < (verCells + 1)) {
            do Screen.drawLine(0, (i * charHeight) - 1, 511, (i * charHeight) - 1);
            let i = i + 1;
        }

        do Screen.drawLine(39, 0, 39, 255);
        do Screen.drawLine(0, 11, 511, 11);

        return;
    }

    method void printHeader() {
        var int i;

        let i = 0;
        while(i < verCells) {
            do Output.moveCursor(i + 1, 1);
            do Output.printInt(i);
            let i = i + 1;
        }

        let i = 0;
        while(i < horCells) {
            do Output.moveCursor(0, (cellChars * (i + 1)) + 2);
            do Output.printChar(alphabet.charAt(i));
            let i = i + 1;
        }

        return;
    }
}