ChatGPT Makes a Fluid simulator

To Quote Chat GPT

This code appears to simulate a fluid using the Navier-Stokes equations, a set of differential equations that describe the motion of fluids. The fluid properties (density, velocity, and pressure) are stored in 2D arrays with dimensions gridSize x gridSize, and these properties are updated over time in the updateFluid function. The Navier-Stokes equations are solved using the Euler method, a numerical integration technique that approximates the solution to a differential equation by dividing the time interval into discrete steps and using the values of the variables at each step to calculate their values at the next step. The renderFluid function is responsible for visualizing the fluid, and it does so by drawing a particle for each grid point, with the radius and color of the particle depending on the density and pressure at that point. The applyForce function allows the user to apply an external force to the fluid by adding the force vector to the velocity at each grid point in the region around a specified location. Finally, the applyObstacles function sets the velocity and density at grid points corresponding to obstacles (e.g. walls) to zero, so that the fluid cannot flow through them.

It took about three hours to drag this simulator kicking and screaming out of chat GPT.