change vehicle's color system to use Color32 instead of indices

Assets/Scripts/Behaviours/Vehicles/Vehicle.cs

@@ -115,8 +115,10 @@ namespace SanAndreasUnity.Behaviours.Vehicles
 
         public static int MeshLayer => UnityEngine.LayerMask.NameToLayer("VehicleMesh");
 
-        private readonly int[] _colors = { 0, 0, 0, 0 };
-        public int[] Colors => _colors;
+        public static readonly Color32 DefaultVehicleColor = default;
+
+        private readonly Color32[] _colors = { DefaultVehicleColor, DefaultVehicleColor, DefaultVehicleColor, DefaultVehicleColor };
+        public IReadOnlyList<Color32> Colors => _colors;
         private readonly float[] _lights = { 0, 0, 0, 0 };
         private MaterialPropertyBlock _props;
         private static readonly int CarColorPropertyId = Shader.PropertyToID("_CarColor");
@@ -206,10 +208,19 @@ namespace SanAndreasUnity.Behaviours.Vehicles
 
         public void SetColors(params int[] clrIndices)
         {
-            for (var i = 0; i < 4 && i < clrIndices.Length; ++i)
+            this.SetColors(CarColors.FromIndices(clrIndices));
+        }
+
+        public void SetColors(Color32[] colors)
         {
-                if (_colors[i].Equals(clrIndices[i])) continue;
-                _colors[i] = clrIndices[i];
+            /*if (colors.Length > 4)
+                throw new System.ArgumentException("Vehicle can not have more than 4 colors");*/
+
+            for (int i = 0; i < 4 && i < colors.Length; ++i)
+            {
+                if (_colors[i].Equals(colors[i]))
+                    continue;
+                _colors[i] = colors[i];
                 _colorsChanged = true;
             }
         }
@@ -437,12 +448,10 @@ namespace SanAndreasUnity.Behaviours.Vehicles
 
         public static void UpdateMaterials(
             FrameContainer frames,
-            int[] colors,
+            Color32[] paintJobColors,
             float[] lights,
             MaterialPropertyBlock materialPropertyBlock)
         {
-            var indices = CarColors.FromIndices(colors);
-
             Color32 headLightColor = new Color32(255, 255, 255, 255);
             Color32 tailLightColor = new Color32(255, 255, 255, 255);
 
@@ -450,10 +459,10 @@ namespace SanAndreasUnity.Behaviours.Vehicles
             Color32[] carColors = new []
             {
                 new Color32(255, 255, 255, 255),
-                indices[0],
-                indices[1],
-                indices[2],
-                indices[3],
+                paintJobColors[0],
+                paintJobColors[1],
+                paintJobColors[2],
+                paintJobColors[3],
                 headLightColor,
                 headLightColor,
                 tailLightColor,

Assets/Scripts/Behaviours/Vehicles/VehicleController.cs

@@ -3,6 +3,7 @@ using SanAndreasUnity.Net;
 using Mirror;
 using SanAndreasUnity.Utilities;
 using System.Linq;
+using System.Collections.Generic;
 
 namespace SanAndreasUnity.Behaviours.Vehicles
 {
@@ -62,8 +63,12 @@ namespace SanAndreasUnity.Behaviours.Vehicles
             {
                 F.RunExceptionSafe( () => {
                     // load vehicle on clients
-                    int[] colors = DeserializeColors(m_net_carColors);
-                    m_vehicle = Vehicle.Create(this.gameObject, m_net_id, colors, this.transform.position, this.transform.rotation);
+
+                    Color32[] colors = DeserializeColors(m_net_carColors);
+
+                    m_vehicle = Vehicle.Create(this.gameObject, m_net_id, null, this.transform.position, this.transform.rotation);
+
+                    m_vehicle.SetColors(colors);
                     
                     // update rigid body status
                     this.EnableOrDisableRigidBody();
@@ -91,14 +96,38 @@ namespace SanAndreasUnity.Behaviours.Vehicles
             this.EnableOrDisableRigidBody();
         }
 
-        public static string SerializeColors(int[] colors)
+        public static string SerializeColors(IEnumerable<Color32> colors)
         {
-            return colors != null ? string.Join(";", colors.Select(c => c.ToString(System.Globalization.CultureInfo.InvariantCulture))) : null;
+            return colors != null
+                ? string.Join("|", colors.Select(c => SerializeColor(c)))
+                : null;
         }
 
-        public static int[] DeserializeColors(string colors)
+        public static Color32[] DeserializeColors(string colors)
         {
-            return string.IsNullOrEmpty(colors) ? null : colors.Split(';').Select(s => int.Parse(s, System.Globalization.CultureInfo.InvariantCulture)).ToArray();
+            return string.IsNullOrEmpty(colors)
+                ? null
+                : colors.Split('|').Select(s => DeserializeColor(s)).ToArray();
+        }
+
+        public static string SerializeColor(Color32 color)
+        {
+            byte[] values = new byte[] { color.r, color.g, color.b, color.a };
+            return string.Join(";", values.Select(v => v.ToString(System.Globalization.CultureInfo.InvariantCulture)));
+        }
+
+        public static Color32 DeserializeColor(string colorString)
+        {
+            string[] splits = colorString.Split(';');
+
+            if (splits.Length != 4)
+                throw new System.ArgumentException($"Failed to deserialize color - expected 4 components, found {splits.Length}");
+
+            return new Color32(
+                byte.Parse(splits[0], System.Globalization.CultureInfo.InvariantCulture),
+                byte.Parse(splits[1], System.Globalization.CultureInfo.InvariantCulture),
+                byte.Parse(splits[2], System.Globalization.CultureInfo.InvariantCulture),
+                byte.Parse(splits[3], System.Globalization.CultureInfo.InvariantCulture));
         }
 
         private void Update()

Assets/Scripts/Behaviours/Vehicles/Vehicle_Damage.cs

@@ -1,4 +1,5 @@
-using System.Linq;
+using System.Collections.Generic;
+using System.Linq;
 using SanAndreasUnity.Behaviours.Audio;
 using SanAndreasUnity.Net;
 using SanAndreasUnity.Utilities;
@@ -240,7 +241,7 @@ namespace SanAndreasUnity.Behaviours.Vehicles
             DetachFrameFromTransformDuringExplosion(this.transform, frame, mass, parentGo, this.NetIdentity.netId, this.Definition.Id, this.Colors);
         }
 
-        public static void DetachFrameFromTransformDuringExplosion(Transform tr, Frame frame, float mass, GameObject parentGo, uint vehicleNetId, int vehicleModelId, int[] vehicleColors)
+        public static void DetachFrameFromTransformDuringExplosion(Transform tr, Frame frame, float mass, GameObject parentGo, uint vehicleNetId, int vehicleModelId, IReadOnlyList<Color32> vehicleColors)
         {
             if (! tr.IsParentOf(frame.transform))   // already detached ?
                 return;

Assets/Scripts/Networking/NetworkedVehicleDetachedPart.cs

@@ -57,7 +57,7 @@ namespace SanAndreasUnity.Net
             }
         }
 
-        public void InitializeOnServer(uint vehicleNetId, int vehicleModelId, int[] vehicleColors, string frameName, float mass, Rigidbody rigidbody)
+        public void InitializeOnServer(uint vehicleNetId, int vehicleModelId, IReadOnlyList<Color32> vehicleColors, string frameName, float mass, Rigidbody rigidbody)
         {
             NetStatus.ThrowIfNotOnServer();
 
@@ -91,7 +91,7 @@ namespace SanAndreasUnity.Net
                 
                 VehicleDef def = Item.GetDefinitionOrThrow<VehicleDef>(m_net_vehicleModelId);
 
-                int[] colors = VehicleController.DeserializeColors(m_net_vehicleColors);
+                Color32[] colors = VehicleController.DeserializeColors(m_net_vehicleColors);
 
                 var geometryParts = Vehicle.LoadGeometryParts(def);
 
@@ -136,7 +136,7 @@ namespace SanAndreasUnity.Net
 
         }
 
-        private static void SetColors(FrameContainer frames, int[] colors)
+        private static void SetColors(FrameContainer frames, Color32[] colors)
         {
             Vehicle.UpdateMaterials(frames, colors, new []{ 0f, 0f, 0f, 0f }, new MaterialPropertyBlock());
         }