The Random Api can be used to generate random numbers. Note that the pseudo random numbers generated are identical across all clients. This is a somewhat stateful Api, which has potential repercussions when used together with the Multiplayer Api. Consider checking that document if you intend on creating diverging game states with random number generation.
Random Api Function List
// Sets the seed to the given input
fn set_seed(seed: i32);
// Generates a random integer from the minimum up to (but not including) the maximum value
// For example, random_int_range(0, 5) could return 0, 1, 2, 3, 4. It cannot return 5.
fn random_int_range(min: i32, max: i32) -> i32;
// Generates a random float from 0.0 to 1.0.
fn random_float() -> f32;
// Generates a random float from the minimum to maximum value.
fn random_float_range(min: f32, max: f32) -> f32;