Model.jack

class Model {
    field LevelManager levelManager;
    field Board board;
    field State state;
    field int tickAccumulator;
    field boolean screenDirty;

    constructor Model new() {
        let levelManager = LevelManager.new();
        let state = State.StatePlaying();
        let tickAccumulator = 0;
        let screenDirty = false;
        return this;
    }

    method void update() {
        let tickAccumulator = tickAccumulator + 1;
        if (tickAccumulator > 20) {
            let tickAccumulator = 0;
        }
        if (screenDirty) {
            let screenDirty = false;
        }

        return;
    }

    method LevelManager getLevelManager() {
        return levelManager;
    }

    method Board getBoard() {
        return board;
    }

    method State getState() {
        return state;
    }

    method int getTickAccumulator() {
        return tickAccumulator;
    }

    method boolean isScreenDirty() {
        return screenDirty;
    }

    method void setBoard(Board aBoard) {
        if (~(board = null)) {
            do board.dispose();
        }
        let board = aBoard;

        return;
    }

    method void setState(State aState) {
        let state = aState;
        let screenDirty = true; // forces a full screen refresh on state change

        return;
    }

    method void dispose() {
        do levelManager.dispose();
        do board.dispose();
        do Memory.deAlloc(this);

        return;
    }
}