In order to address these conditions, the architects covered the upper stories with a screen of alternating brick, which continues beyond the living quarters to enclose a rooftop terrace. The design balances the desire for natural light with needs for privacy and security.
This is the 6th step out of 10 of the Gamedev Canvas tutorial. You can find the source code as it would look after completing this lesson at Gamedev-Canvas-workshop/lesson6.html.
After modifying the gameplay mechanics, we are now able to lose — this is great as it means the game is finally feeling more like a game. However, it will quickly get boring if all you do is bounce the ball off the walls and the paddle. What a breakout game really needs is some bricks to destroy with the ball, and this is what we'll create now!
Rectangular Star Screen — 8 x 8 x 16; Rectangular Random Step — 8 x 8 x 16; Square Cloverleaf — 12″ Solar — 8 x 8 x 12; Arkansas: ABC-Central Block and Brick — Screen blocks are not shown on their website, but they do sell at least two designs brought in from another manufacturer. For my big update, I called and was instructed: If. Full-screen Magnification; Zoom - Enlarge the contents of your screen, Adjustable speed and increments; Track - Follow the Cursor or focus, 5 Adjustable modes. Colour - Change the colours of your content to enhance readability, 5 Adjustable modes. Keyboard - Use shortcuts to. Brick Clips are useful for attaching solar screens to windows that are surrounded by bricks. The great thing about Brick Clips, is that it requires no modification to the window or to the screen frame. They can be easily removed and re-positioned, yet they hold the solar screen firmly in place. Fits 5/16″ thick frames.
Setting up the brick variables
The overall aim of this lesson is to render a few lines of code for the bricks, using a nested loop that works through a two-dimensional array. First however we need to set up some variables to define information about the bricks such as their width and height, rows and columns, etc. Add the following lines to your code below the variables which you have previously declared in your program.
Here we've defined the number of rows and columns of bricks , their width and height, the padding between the bricks so they won't touch each other and a top and left offset so they won't start being drawn right from the edge of the Canvas.
We will hold all our bricks in a two-dimensional array. It will contain the brick columns (c), which in turn will contain the brick rows (r), which in turn will each contain an object containing the x and y position to paint each brick on the screen. Add the following just below your variables:
The code above will loop through the rows and columns and create the new bricks. NOTE that the brick objects will also be used for collision detection purposes later.
Brick drawing logic
Now let's create a function to loop through all the bricks in the array and draw them on the screen. Our code might look like this:
Again, we're looping through the rows and columns to set the x and y position of each brick, and we're also painting a brick on the Canvas — size brickWidth x brickHeight — with each loop iteration. The problem is that we're painting them all in one place, at coordinates (0,0). What we need to do is include some calculations that will work out the x and y position of each brick for each loop iteration:
Each brickX position is worked out as brickWidth + brickPadding, multiplied by the column number, c, plus the brickOffsetLeft; the logic for the brickY is identical except that it uses the values for row number, r, brickHeight, and brickOffsetTop. Now every single brick can be placed in its correct place row and column, with padding between each brick, drawn at an offset from the left and top canvas edges.
The final version of the drawBricks() function, after assigning the brickX and brickY values as the coordinates instead of (0,0) each time, will look like this — add this into your code below the drawPaddle() function:
Actually drawing the bricks
The last thing to do in this lesson is to add a call to drawBricks() somewhere in the draw() function, preferably at the beginning, between the clearing of the Canvas and drawing the ball. Add the following just above the drawBall() call:
Compare your code
At this point, the game has got a little more interesting again :
Exercise: Try changing the number of bricks in a row or a column, or their positions.
Next steps
So now we have bricks! But the ball isn't interacting with them at all — we'll change that as we continue to the seventh chapter: Collision detection.
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Screen Brick Weep Holes
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Faux Brick Wall Panels
Next steps
Brick Screen Wall Designs
Screen Brick Walls
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