Contents
How to check for collision in drawbricks?
Update your drawBricks () function as follows: Now we need to involve the brick status property in the collisionDetection () function: if the brick is active (its status is 1) we will check whether the collision happens; if a collision does occur we’ll set the status of the given brick to 0 so it won’t be painted on the screen.
How to check for collision in collision detection?
Now we need to involve the brick status property in the collisionDetection () function: if the brick is active (its status is 1) we will check whether the collision happens; if a collision does occur we’ll set the status of the given brick to 0 so it won’t be painted on the screen. Update your collisionDetection () function as indicated below:
What happens if the center of the ball is inside a brick?
If the center of the ball is inside the coordinates of one of our bricks, we’ll change the direction of the ball. For the center of the ball to be inside the brick, all four of the following statements need to be true: The x position of the ball is greater than the x position of the brick.
Why are the bricks staying where they are?
The problem is that the bricks are staying where they are. We have to figure out a way to get rid of the ones we’ve already hit with the ball. We can do that by adding an extra parameter to indicate whether we want to paint each brick on the screen or not.
How to create collision detection function in MDN?
To kick this all off we want to create a collision detection function that will loop through all the bricks and compare every single brick’s position with the ball’s coordinates as each frame is drawn. For better readability of the code we will define the b variable for storing the brick object in every loop of the collision detection:
How to write collision detection in game development?
Let’s write that down in code: Add the above block to your code, below the keyUpHandler () function. The above code will work as desired and the ball changes its direction. The problem is that the bricks are staying where they are. We have to figure out a way to get rid of the ones we’ve already hit with the ball.
How to update collisiondetection function in JavaScript?
Update your collisionDetection () function as indicated below: The last thing to do is to add a call to the collisionDetection () function to our main draw () function. Add the following line to the draw () function, just below the drawPaddle () call: The collision detection of the ball is now checked on every frame, with every brick.
Where can I find the gamedev canvas tutorial?
This is the 7th step out of 10 of the Gamedev Canvas tutorial. You can find the source code as it should look after completing this lesson at Gamedev-Canvas-workshop/lesson7.html.