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import simd | |
public extension float4x4 { | |
var forwardVector: simd_float3 { | |
simd_float3(columns.2.x, columns.2.y, columns.2.z).normalized | |
} | |
func movedForwardPosition(speed: Float) -> float4x4 { | |
var returnValue = self | |
returnValue.columns.3.x += (forwardVector.x * speed) | |
returnValue.columns.3.y += (forwardVector.y * speed) | |
returnValue.columns.3.z += (forwardVector.z * speed) | |
return returnValue | |
} | |
} | |
extension Float { | |
var degreesToRadians: Float { self * .pi / 180 } | |
} | |
public extension simd_float3 { | |
var negated: simd_float3 { self * -1 } | |
var magnitude: Float { sqrtf(x*x + y*y + z*z) } | |
var normalized: simd_float3 { return self / magnitude } | |
} |
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