Dimension.js

export class Dimension {
  
  width:  int;
  height: int;
  
  constructor(width: int, height: int) {
    this.width  = width;
    this.height = height;
  }
}

Point.js

export class Point {

  latitude:   int;
  longitude:  int;
  
  constructor(latitude: int, longitude: int) {
    this.latitude   = latitude;
    this.longitude  = longitude;
  }
}

Rect.js

import { Point } from 'Point.js';
import { Dimension } from 'Dimension.js';

export class Rect {
  
  position:   Point;
  dimension:  Dimension;
  
  constructor(position: Point, dimension: Dimension) {
    this.position   = position;
    this.dimension  = dimension;
  }
}

SimpleMap.js

import { Rect } from 'Rect.js';
import { Color } from 'Color.js';

export class SimpleMap {
  
  surface:  Rect;
  colors:   Array<>Color;
  
  constructor(surface: Rect, colors: Array<Color>, ...) {
    this.surface  = surface;
    this.colors   = colors;
  }
  
  private isTiny():boolean {
    return true;
  }
  
  isMulticoloredMap():boolean {
    // TODO
    return false;
  }
}