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a dinosaur
2024-08-29 03:56:54 +10:00
parent f95be3f5f4
commit c5dd2caf48
5 changed files with 260 additions and 10 deletions
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26
Sources/Voxelotl/Math/VectorExtensions.swift
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@ -1,7 +1,11 @@
import simd
extension SIMD3 {
var xy: SIMD2<Scalar> {
public extension SIMD2 where Scalar: Numeric & AdditiveArithmetic {
@inline(__always) func dot(_ b: Self) -> Scalar { self.x * b.x + self.y * b.y }
}
public extension SIMD3 {
@inline(__always) var xy: SIMD2<Scalar> {
get { .init(self.x, self.y) }
set {
self.x = newValue.x
@ -9,7 +13,7 @@ extension SIMD3 {
}
}
var xz: SIMD2<Scalar> {
@inline(__always) var xz: SIMD2<Scalar> {
get { .init(self.x, self.z) }
set {
self.x = newValue.x
@ -18,7 +22,7 @@ extension SIMD3 {
}
}
extension SIMD3 where Scalar: FloatingPoint {
public extension SIMD3 where Scalar: FloatingPoint {
@inline(__always) static var X: Self { Self(1, 0, 0) }
@inline(__always) static var Y: Self { Self(0, 1, 0) }
@inline(__always) static var Z: Self { Self(0, 0, 1) }
@ -31,6 +35,10 @@ extension SIMD3 where Scalar: FloatingPoint {
@inline(__always) static var back: Self { Z }
}
public extension SIMD3 where Scalar: Numeric & AdditiveArithmetic {
@inline(__always) func dot(_ b: Self) -> Scalar { self.x * b.x + self.y * b.y + self.z * b.z }
}
extension SIMD3 where Scalar == Float {
static func * (q: simd_quatf, v: Self) -> Self {
#if true
@ -51,8 +59,8 @@ extension SIMD3 where Scalar == Float {
}
}
extension SIMD4 {
var xy: SIMD2<Scalar> {
public extension SIMD4 {
@inline(__always) var xy: SIMD2<Scalar> {
get { .init(self.x, self.y) }
set {
self.x = newValue.x
@ -60,7 +68,7 @@ extension SIMD4 {
}
}
var xyz: SIMD3<Scalar> {
@inline(__always) var xyz: SIMD3<Scalar> {
get { .init(self.x, self.y, self.z) }
set {
self.x = newValue.x
@ -69,3 +77,7 @@ extension SIMD4 {
}
}
}
public extension SIMD4 where Scalar: Numeric & AdditiveArithmetic {
@inline(__always) func dot(_ b: Self) -> Scalar { self.x * b.x + self.y * b.y + self.z * b.z + self.w * b.w }
}