SectrPrototype/code/math.odin

73 lines
1.3 KiB
Odin

package sectr
Axis2 :: enum i32 {
Invalid = -1,
X = 0,
Y = 1,
Count,
}
is_power_of_two_u32 :: proc( value : u32 ) -> b32
{
return value != 0 && ( value & ( value - 1 )) == 0
}
import "core:math/linalg"
Vec2 :: linalg.Vector2f32
Vec3 :: linalg.Vector3f32
Vec2i :: [2]i32
Vec3i :: [3]i32
Range2 :: struct #raw_union{
using min_max : struct {
min, max : Vec2
},
using pts : struct {
p0, p1 : Vec2
},
using xy : struct {
x0, y0 : f32,
x1, y1 : f32,
},
}
range2 :: #force_inline proc "contextless" ( a, b : Vec2 ) -> Range2 {
result := Range2 { pts = { a, b } }
return result
}
Rect :: struct {
top_left, bottom_right : Vec2
}
add_range2 :: #force_inline proc "contextless" ( a, b : Range2 ) -> Range2 {
result := Range2 { pts = {
a.p0 + b.p0,
a.p1 + b.p1,
}}
return result
}
equal_range2 :: #force_inline proc "contextless" ( a, b : Range2 ) -> b32 {
result := a.p0 == b.p0 && a.p1 == b.p1
return b32(result)
}
// // Translated intersect_2f32 function
// intersect_2f32 :: proc(a, b: Rng2F32) -> Rng2F32 {
// c: Rng2F32
// c.min.x = Max(a.min.x, b.min.x)
// c.min.y = Max(a.min.y, b.min.y)
// c.max.x = Min(a.max.x, b.max.x)
// c.max.y = Min(a.max.y, b.max.y)
// return c
// }
size_range2 :: #force_inline proc "contextless" ( value : Range2 ) -> Vec2 {
return { value.p1.x - value.p0.x, value.p0.y - value.p1.y }
}