dvector | Speaker embedding trained with GE2E loss | Machine Learning library

I'm trying to learn about intrinsic and how to properly utilize, and optimize it, I decided to implement a function to get the dot product of two arrays as a starting point to learn.

I create two functions to get the dot product of an array of integers int, one is coded in a normal way where you loop through every elements of the two arrays then perform multiplication with each element then add/accumulate/sum the resulting products to get the dot product.

The other uses intrinsic in a way where, I perform intrinsic operations on four elements of each array, I multiply each of them using _mm_mullo_epi32, then uses 2 horizontal add _mm_hadd_epi32 to get the sum of the current 4 elements, after that I add it up to the dot_product, then proceed to the the next four element, then repeat until I get to the calculated limit vec_loop, then I calculate the other remaining elements using the normal way to avoid calculating out of the array's memory, then I compare the performance of the two.

header file with the two types of dot product function:

So, my issue concerns vectors, I don't know where I'm going with that case. I'm building a pandemic simulation (using Javascript and the library p5.js), and I'm trying to add a lockdown feature.

Here is an image to make everything clearer:

Essentially, at the moment, when two molecules collide, their velocity vector change appropriately by switching their former velocity.

I want to make sure that various objects moving at high speed cannot pass through walls or other objects. My thought process was to check via Raycast if a collision has occurred between two moments of movement.

So the script should remember the previous position and check via Raycast for collisions between previous and current position.

If a collision has occurred, the object should be positioned at the meeting point and moved slightly in the direction of the previous position.

My problem is that works outside the map not inside. If I go from inside to outside, I can go through the walls. From outside to inside not.

Obviously I have misunderstood something regarding the application with raycasts.

I've been trying to get this to work for a while and I've hit a block and can't get these balls to bounce off of each other and the walls. I'm trying to make essentially a virus simulator, with different balls having different properties determining infection chances whenever they contact each other. Here's the code I'm working with:

Molecule.js: