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rotating flip flags

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a dinosaur
2024-09-21 10:21:26 +10:00
parent 1f5c59fe77
commit 9640a4042f
4 changed files with 216 additions and 36 deletions
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66
Sources/Voxelotl/Math/Extent.swift
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@ -1,6 +1,15 @@
import Foundation
public struct Extent<T: AdditiveArithmetic & Hashable>: Hashable {
public var left: T, top: T, right: T, bottom: T
public init(left: T, top: T, right: T, bottom: T) {
self.left = left
self.top = top
self.right = right
self.bottom = bottom
}
@inline(__always) public var topLeft: Point<T> { .init(left, top) }
@inline(__always) public var topRight: Point<T> { .init(right, top) }
@inline(__always) public var bottomLeft: Point<T> { .init(left, bottom) }
@ -24,6 +33,14 @@ public extension Extent where T: SIMDScalar {
self.right = to.x
self.bottom = to.y
}
@inline(__always) static func + (lhs: Self, rhs: SIMD2<T>) -> Self {
.init(
left: lhs.left + rhs.x,
top: lhs.top + rhs.y,
right: lhs.right + rhs.x,
bottom: lhs.bottom + rhs.y)
}
}
public extension Extent where T: AdditiveArithmetic {
@ -44,3 +61,52 @@ public extension Extent where T: Numeric {
bottom: lhs.bottom * rhs.h)
}
}
public extension Extent where T: BinaryInteger {
init<O: BinaryInteger>(_ other: Extent<O>) {
self.left = T(other.left)
self.top = T(other.top)
self.right = T(other.right)
self.bottom = T(other.bottom)
}
init<O: BinaryFloatingPoint>(_ other: Extent<O>) {
self.left = T(other.left)
self.top = T(other.top)
self.right = T(other.right)
self.bottom = T(other.bottom)
}
}
public extension Extent where T: FloatingPoint {
init<O: BinaryInteger>(_ other: Extent<O>) {
self.left = T(other.left)
self.top = T(other.top)
self.right = T(other.right)
self.bottom = T(other.bottom)
}
@inline(__always) static func / (lhs: Self, rhs: T) -> Self {
.init(
left: lhs.left / rhs,
top: lhs.top / rhs,
right: lhs.right / rhs,
bottom: lhs.bottom / rhs)
}
}
public extension Extent where T: BinaryFloatingPoint {
init<O: BinaryFloatingPoint>(_ other: Extent<O>) {
self.left = T(other.left)
self.top = T(other.top)
self.right = T(other.right)
self.bottom = T(other.bottom)
}
}
@inlinable public func floor<T: FloatingPoint>(_ extent: Extent<T>) -> Extent<T> {
.init(
left: floor(extent.left),
top: floor(extent.top),
right: floor(extent.right),
bottom: floor(extent.bottom))
}