Convert Gameplaykit simd_float3x3 to simd_float4x4 (and back)

GameplayKitMatrixOperations.swift

import Foundation
import GameplayKit

func convertToFloat3x3(float4x4: simd_float4x4) -> simd_float3x3 {
  let column0 = convertToFloat3 ( float4: float4x4.columns.0 )
  let column1 = convertToFloat3 ( float4: float4x4.columns.1 )
  let column2 = convertToFloat3 ( float4: float4x4.columns.2 )
  
  return simd_float3x3.init(column0, column1, column2)
}

func convertToFloat3(float4: simd_float4) -> simd_float3 {
  return simd_float3.init(float4.x, float4.y, float4.z)
}

func convertToFloat4x4(float3x3: simd_float3x3) -> simd_float4x4 {
  let column0 = convertToFloat4 ( float3: float3x3.columns.0 )
  let column1 = convertToFloat4 ( float3: float3x3.columns.1 )
  let column2 = convertToFloat4 ( float3: float3x3.columns.2 )
  let identity3 = simd_float4.init(x: 0, y: 0, z: 0, w: 1)
  
  return simd_float4x4.init(column0, column1, column2, identity3)
}

func convertToFloat4(float3: simd_float3) -> simd_float4 {
  return simd_float4.init(float3.x, float3.y, float3.z, 0)
}

MoveComponent.swift

import Foundation
import SceneKit
import GameplayKit

class MoveComponent: GKScnComponent, GKAgentDelegate {
   
   //this class is abbreviated for perfunctory sakes   
   
   func agentWillUpdate(_ agent: GKAgent) {
    guard let visualComponent = entity?.component(ofType: self.visualType) as? VisualComponent else {
      return
    }
    
     //works with just "position", but turns possessed with both rotation and position
    agentSeeking.rotation = convertToFloat3x3(float4x4: visualComponent.parentMostNode.simdTransform)
    agentSeeking.position = visualComponent.parentMostNode.simdPosition
  }
  
  func agentDidUpdate(_ agent: GKAgent) {
    guard let visualComponent = entity?.component(ofType: self.visualType) as? VisualComponent else {
      return
    }
    
    //works with just "position", but turns possessed with both rotation and position
    visualComponent.parentMostNode.simdPosition = agentSeeking.position
    visualComponent.parentMostNode.simdTransform = convertToFloat4x4(float3x3: agentSeeking.rotation)
  }
  
}