- Instead of looking at the mechanics from an x/y perspective, we must look at it from a lateral/longitudinal perspective. This is because vehicles can turn, as well as because the resistance to movement is much higher when you try to push a car sideways. - The main problem with making convincing vehicle physics deals with traction. If you just take longitudinal velocity into account, your traction will do the same. I have seen too many vehicle simulators on Scratch where cars have infinite cornering force. - Without lateral velocity and traction, it is possible to make a u-turn at a very high speed. This is not remotely possible in any production vehicle created to this day. If you were to try this, you would lose traction and your car's velocity would shift from lateral to longitudinal. Basically you would spin out. - The challenge with this is changing longitudinal velocity into lateral velocity when the car turns. When any car turns, there is an amount of side-slip that occurs. This side slip can be represented as a function, since side-slip is manageable up to a certain point, where you will spin out after reaching the point of no return.
-First of all, my equations seem to be incorrect. Even though I used a proper inverse rotation matrix to translate vectors from the 0 degrees of the world (x and y) to the angle of the car (linear and lateral), the friction values are incorrect unless you are traveling on an axis. The friction when moving sideways is meant to be much higher, but when the car is angled at (quadrant * 45) degrees, the friction is higher while moving forwards. -I am having issues with proper implementation of frame delta, since this has different results on turbowarp. -Help with this math would be appreciated :) -This will probably be the new and revised physics engine for my upcoming game. (Of course the game will have scrolling functions) - I implemented a rudimentary directional slip function. It is hard to visualize in scratch, so you can also see it here: https://www.desmos.com/calculator/z8e469bzdr #cars
