v/examples/fireworks/modules/objects/vector.v

29 lines
446 B
V

module objects
import math
import rand
pub struct Vector {
pub mut:
x f32
y f32
}
pub fn (a Vector) + (b Vector) Vector {
return Vector{a.x + b.x, a.y + b.y}
}
pub fn (vector Vector) mult(scalar f32) Vector {
return Vector{vector.x * scalar, vector.y * scalar}
}
pub fn random_vector_in_circle() Vector {
theta := rand.f32n(2 * math.pi)
y := rand.f32()
return Vector{
x: f32(y * math.sin(theta))
y: f32(y * math.cos(theta))
}
}