Hello Everyone!!! I am relatively new to Processing as a whole and would like some assistance. I am trying to make a spaceship game where when the player presses the w key it fires a bullet Unfortunately, the bullet only fires once and starts its trajectory at y = 400. How do I fix these problem…

You’ll need a list to hold multiple bullets (I’m assuming that you can fire more than one), which you then update on a per-frame basis. I’ve adapted the last bit of your code to make it work. Note that I also elected to use a keyPressed function. ... def setup(): size(800, 800) global s …

Thank you so much!!! Stile helped a lot but I have a few more questions… for b in bullets: b.xpos -= b.speed b.show() What is the logic behind this block of code and why? If I wanted to make a function that checks if the bullets collided with another object would I have to check e…

Yes – you would use a loop for the collision detection as well. However, you can make use of the existing loop: for b in bullets: b.xpos -= b.speed b.show() # insert code here to check # if b has collided with an enemy Regarding the logic of the for block – bullet…

Yes, I do want multiple enemies however the enemies will be created from a class. So would I have to compare the bullets current x - value using an index with the enemies position? The way I am thinking of doing collision is with the following code: for i in range(len(bullets)): bullet = …

The collision detection is not that simple. You are supposing that the bullet’s x/y position (a single pixel’s coordinate) will be exactly equal to the enemy’s x/y position (another single pixel’s coordinate). In reality, these objects both have 2D areas that can overlap in various ways. Hence, you …

For introductions to basic collision detection in Processing (although written for Java mode, not processing.py, the principles are the same) – see these tutorials with examples: http://www.jeffreythompson.org/collision-detection/ https://happycoding.io/tutorials/processing/collision-detection

Hello again!!! Thanks for all the help but I still have a question Thanks to links sent by the other user I am developing a collision method which when the bullet hits a rectangle I want to make the rectangle disappear. How do I do that and is their a built in function in processing to remove obj…

[image] hsamala: … I am developing a collision method which when the bullet hits a rectangle I want to make the rectangle disappear. [image] [SOLVED] Py.processing bullet and enemy collision Processing.py @solub , your solution is buggy! bug When we delete an item f…

Hello again!!! Can you send me a basic example of bullet collision. I have been working on this for a while and now I am stuck

Sure. To use an adaption of what I provided in my previous responses: ... def setup(): size(800, 800) global s global bullets s = ship(200, 400, 20) bullets = [] def draw(): background(0) s.show() enemyx = 10; enemyy = 385 enemyw = 20; enemyh = 20 …

Fixing bullet trajectory

Processing.py

GoToLoop March 14, 2019, 3:44am 9

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Fixing bullet trajectory

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