Is there a bug in the Validator?

Question about the task

Racer (Part 5/28)

Games, Level 0, Lesson 5

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Create a GameObject class to represent game objects. All game objects will have the following common properties:

- int x, int y — coordinates of the object's upper left corner on the playing field;
- int[][] matrix — matrix for displaying the game object. The matrix values are the ordinals of the colors in the Color enum.

To get the color, use Color.values()[matrix[i][j]], where:

i is the y coordinate in the matrix,
j is the x coordinate in the matrix.

- int height, int width — The height and width match the dimensions of the matrix.

An object must also have a method that draws it.

Requirements:

There must be a public GameObject class in a separate file.
The GameObject class must have a public int x field.
The GameObject class must have a public int y field.
The GameObject class must have a public int[][] matrix field.
The GameObject class must have a public int width field.
The GameObject class must have a public int height field.
The GameObject class must have a public constructor with three parameters (int, int, int[][]). It must use the parameters to set the x and y fields and the matrix field.
In the GameObject's constructor, the width field must be initialized to the value matrix[0].length, where matrix is the constructor's last parameter.
In the GameObject's constructor, the height field must be initialized to the value matrix.length, where matrix is the constructor's last parameter.
The GameObject class must have a public void draw(Game) method.
The draw(Game) method must call the setCellColor(int, int, Color) method on the Game object for each cell of the matrix. The following arguments must be passed: the object's x + x in the matrix, the object's y + y in the matrix, color.
The GameObject class must have a statement that imports the entire contents of the com.codegym.engine.cell package.

package com.codegym.games.racer; import com.codegym.engine.cell.*; public class RacerGame extends Game { public static final int WIDTH = 64; public static final int HEIGHT = 64; public static final int CENTER_X = WIDTH/2; public static final int ROADSIDE_WIDTH = 14; @Override public void initialize() { showGrid(false); setScreenSize(WIDTH, HEIGHT); createGame(); } private void createGame() { drawScene(); } private void drawScene() { drawField(); } private void drawField() { for (int y = 0; y < HEIGHT; y++) { for (int i = 0; i < ROADSIDE_WIDTH; i++) setCellColor(i, y, Color.GREEN); for (int j = ROADSIDE_WIDTH; j < WIDTH-ROADSIDE_WIDTH; j++) setCellColor(j, y, Color.DIMGRAY); setCellColor(CENTER_X, y, Color.WHITE); for (int k = WIDTH-ROADSIDE_WIDTH; k < WIDTH; k++) setCellColor(k, y, Color.GREEN); } } @Override public void setCellColor(int x, int y, Color color) { if (!(x < 0 || x >= WIDTH || y < 0 || y >= HEIGHT)) super.setCellColor(x, y, color); } }

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Elvis Lee

Level 41 , Aurora, United States

24 February 2020, 18:30

Thanks, Seb. It's exactly the reason.

Seb

Level 41 , Crefeld, Germany

24 February 2020, 17:00

solution

Try to call the setCellColor method (line 23) on the passed game object - say game.setCellColor... If that's not it, let me know and I'll have another look. You might otherwise need to swap your i, j, width and height around...