Move math modules to their own group

MetaballsKit/Math.swift

@@ -1,122 +0,0 @@
-//
-//  Math.swift
-//  Metaballs
-//
-//  Created by Eryn Wells on 9/22/18.
-//  Copyright © 2018 Eryn Wells. All rights reserved.
-//
-
-import Cocoa
-import Foundation
-import simd
-
-public typealias Float2 = packed_float2
-public typealias Float3 = float3
-public typealias Float4 = float4
-public typealias Matrix2x2 = float2x2
-public typealias Matrix3x3 = float3x3
-public typealias Matrix4x4 = float4x4
-
-extension Float2 {
-    var CGPoint: CGPoint {
-        return CoreGraphics.CGPoint(x: CGFloat(x), y: CGFloat(y))
-    }
-}
-
-extension Float2: CustomStringConvertible {
-    public var description: String {
-        return "(\(x), \(y))"
-    }
-}
-
-extension Float3 {
-    func dot(other: Float3) -> Float3 {
-        return Float3(x * other.x, y * other.y, z * other.z)
-    }
-}
-
-extension Float4 {
-    public init(r: Float, g: Float, b: Float, a: Float) {
-        self.init(r, g, b, a)
-    }
-
-    public init(color: NSColor) {
-        if let convertedColor = color.usingColorSpace(NSColorSpace.deviceRGB) {
-            self.init(Float(convertedColor.redComponent), Float(convertedColor.greenComponent), Float(convertedColor.blueComponent), Float(convertedColor.alphaComponent))
-        } else {
-            self.init()
-        }
-    }
-}
-
-extension Matrix3x3 {
-    static func rotation(angle theta: Float) -> Matrix3x3 {
-        return self.init(rows: [
-            Float3(cos(theta), -sin(theta), 0.0),
-            Float3(sin(theta),  cos(theta), 0.0),
-            Float3(0, 0, 1),
-        ])
-    }
-
-    static func translation(dx: Float, dy: Float) -> Matrix3x3 {
-        var mat = self.init(1.0)
-        mat.columns.2.x = dx
-        mat.columns.2.y = dy
-        return mat
-    }
-
-    static func scale(x: Float, y: Float) -> Matrix3x3 {
-        var mat = self.init(1.0)
-        mat.columns.0.x = x
-        mat.columns.1.y = y
-        return mat
-    }
-}
-
-extension Matrix3x3 {
-    static func *(left: Matrix3x3, right: Matrix3x3) -> Matrix3x3 {
-        return matrix_multiply(left, right)
-    }
-}
-
-extension Matrix4x4 {
-    /// Create a 4x4 orthographic projection matrix with the provided 6-tuple.
-    /// @see https://en.wikipedia.org/wiki/Orthographic_projection
-    static func orthographicProjection(top: Float32, left: Float32, bottom: Float32, right: Float32, near: Float32, far: Float32) -> Matrix4x4 {
-        let rows = [
-            Float4(2.0 / (right - left), 0.0, 0.0, -(right + left) / (right - left)),
-            Float4(0.0, 2.0 / (top - bottom), 0.0, -(top + bottom) / (top - bottom)),
-            Float4(0.0, 0.0, -2.0 / (far - near), -(far + near) / (far - near)),
-            Float4(0.0, 0.0, 0.0, 1.0)
-        ]
-        return Matrix4x4(rows: rows)
-    }
-
-    static func translation(dx: Float, dy: Float, dz: Float) -> Matrix4x4 {
-        var mat = self.init(1.0)
-        mat.columns.3.x = dx
-        mat.columns.3.y = dy
-        mat.columns.3.z = dz
-        return mat
-    }
-
-    static func scale(x: Float, y: Float, z: Float) -> Matrix4x4 {
-        var mat = self.init(1.0)
-        mat.columns.0.x = x
-        mat.columns.1.y = y
-        mat.columns.2.z = z
-        return mat
-    }
-}
-
-extension Matrix4x4 {
-    static func *(left: Matrix4x4, right: Matrix4x4) -> Matrix4x4 {
-        return matrix_multiply(left, right)
-    }
-}
-
-extension CGSize {
-    init(size: Size) {
-        self.init(width: CGFloat(size.x), height: CGFloat(size.y))
-    }
-}