This article details my adventures and disadventures while porting my +9 years old XNA games, originally developed for Windows Phone, to multiple other frameworks (SharpDX, PSM, MonoGame...), for PSVita, Android and Desktop (Windows, Linux, macOS) platforms.
The article is divided in 3 parts:
In ECS all systems are updated on the main thread. The order in which the are updated is based on a set of constraints and an optimization pass which tries to order the system in a way so that the time between scheduling a job and waiting for it is as long as possible.
The attributes to specify update order of systems are [UpdateBefore(typeof(OtherSystem))] and [UpdateAfter(typeof(OtherSystem))]. In addition to update before or after other ECS systems it is possible to update before or after different phases of the Unity PlayerLoop by using typeof(UnityEngine.Experimental.PlayerLoop.FixedUpdate) or one of the other phases in the same namespace.
The UpdateInGroup attribute will put the system in a group and the same UpdateBefore and UpdateAfter attributes can be specified on a group or with a group as the target of the before/after dependency.
To use __UpdateIn
| using System.Collections.Generic; | |
| using UnityEngine; | |
| [RequireComponent(typeof(MeshFilter)), RequireComponent(typeof(MeshRenderer))] | |
| public class ProtoMesh : MonoBehaviour | |
| { | |
| #region Helper Properties | |
| // Simple helpers to cache the MeshFilter and MeshRenderer | |
| public MeshRenderer MyMeshRenderer | |
| { |
| /* | |
| HotSwap shader sytem for MonoGame | |
| HotSwap code only exists for debug builds | |
| Edit paths to match your project | |
| Construct in your Initialize method | |
| Add shaders in LoadContent (or whenever) | |
| Call CheckForChanges in Update() or periodically however you like | |
| mgcb.exe usually located in C:\Program Files (x86)\MSBuild\MonoGame\v3.0\Tools | |
| */ |