slingshot | This project implements the Deploy To Azure button | Azure library

I am making this game using matter.js and p5.js where you have to make mangoes fall of a tree using a slingshot and a stone. The code looks somewhat like this:

SlingShot.js:

I have been working on a game of mine to pass the time while stuck at home. Early on in development I added the ability to fire bullets, and it worked great. Now I have added some extra functionality and whenever I try to fire more than one bullet at a time all the bullets act extremely weirdly.

I have looked through SO a fair amount and I haven't seen anything resembling my issue.

Steps to reproduce:

• Click mouse button to fire once
• Before the bullet hits the edge of the screen, move the mouse and fire again
• (You can click as many times as you want and the issue will compound)

Results:

• The original bullet 'disappears' and a new bullet is created at the source, but:
  • The direction is halfway between the two clicks, and
  • The speed of the bullet is either much faster or much slower than the first, depending on the second click

I say 'disappear' because the bullet never actually disappears, I think it just gets stacked on top of the other one. I say this because the number of sprites in the world.bullets group is the correct number.

I believe that the issue has to do with either the Slingshot() or the Bullet() class.

I have added a runnable example below:

I am working off the Slingshot demo. The problem is that after the rock is fired, it can still be clicked on and dragged around, which I want to disable.

I've added a filter to the rock:

so what I am trying to do is pull a spear back(like a slingshot) and send it flying, all the while making it rotate while it's flying in the air to mimic a real thrown spear. So far, I have only been able to make it rotate after a few seconds to a certain position but I can already tell that this isn't really a permanent fix and will definitely lead to problems down the line. I have tried looking for better ways of rotating the object but I can't really find anybody else who had a problem like this and it's hard to understand the unity documentation regarding rotation as it's for 3D objects.

Here is a gif showing how it looks like: https://gfycat.com/chiefglasshorsemouse

This is the code that I have attached to my spear object that's responsible for letting me pull it back and launch it with the mouse:

I have a raycast that's being rendered every frame based on 2 points, and those 2 points change position each frame.

What I need is a system that doesn't need a direction, or a number of objects, but instead takes in 2 points, and then instantiates or destroys as many objects as necessary to get the instantiated objects from one side to another minus spaceBetweenPoints. If you wanted you could think of it as an Angry Birds Style slingshot HUD, except without gravity, and based on raycasts.

My Script:

I am working on a game where a 2D projectile can ricochet off of walls. I currently have the object itself ricocheting just fine, however I would like an Angry Birds Style HUD (minus the gravity) that displays where the object is going to hit a wall, and show what angle it will ricochet at: (Pardon my drawing skills)

I have this system working fine on the technical side, all except for the fact because the raycast is endless, so the actual result looks like this:

So to be clear, in the end, I want the 1st raycast to go out infinitely until it hits something, and then when it generates the 2nd second raycast where the first one hit somthing, have the second raycast only go out a pre-specified distance (Maybe 3f or something like that), or until it hits something, in which case it should stop.

My Script:

I'm trying to make a little game where the user can click on a place on the page, the circle will follow to the pointer's position, and from there, the user can drag their mouse to make the circle move like a slingshot. I want the circle to be able to bounce off the walls.

However, it seems that on the circle's collision with a wall, the circle seems to 'stick' to the wall instead of bouncing right off. I think it might be because of the circle changing directions too quickly due to a rounding error? Also the top wall's collision hasn't been implemented yet because I don't think I declared the top wall div object properly.

Would like to apologise if this is too maths based.

I have a project where I have to create an AngryBirds game with our teacher's custom game engine, however I am stuck on the maths behind the slingshot. We are not allowed to use any standard libraries. The top left is 0, 0 and the y-axis increases when you go down. The total width of the window is 1280 pixels and the height is 720 pixels. I am trying to make the bird travel further as you pull the bird further left from the sling origin which is 257, 524. I used the y value from release at the start so that the bird doesn't go somewhere else in the y-axis straight after letting go. Currently the bird increases in the y-axis, which is to be expected given that is exactly what my code does. I created a variable determining how far from the origin of the slingshot the bird is once the mouse has been let go and I would like to use this value in a speed calculation. I don't know what values to use in a quadratic formula to make the bird stay on the screen. I have tried to illustrate the window to make it clearer.

I'm trying to run an R script (in particular, I am using the "getLineages" function from the Bioconductor package, Slingshot.

I'm wondering why the error "vector memory exhausted (limit reached?)" is showing up when I use this function, as it doesn't seem to be the most memory-intensive function compared to the other functions in this package (with the data I am analyzing).

I do understand that there are other questions like this on Stackoverflow, but they all suggest to switch over to the 64-bit version of R. However, I am already using this version. There seem to be no other answers to this issue so far, I was wondering if anyone might know?

The data is only ~120mb in size, which is far less than my computer's 8GB of RAM.