From dcfa34df4e2d1ec080703d1445d7b92192cf920b Mon Sep 17 00:00:00 2001
From: Ukendio <ukendio@gmail.com>
Date: Wed, 21 Aug 2024 21:29:17 +0200
Subject: [PATCH] CHange Transform to struct

---
 demo/src/ReplicatedStorage/std/components.luau            | 2 +-
 demo/src/ServerScriptService/systems/mobsMove.luau        | 5 +++--
 demo/src/ServerScriptService/systems/spawnMobs.luau       | 2 +-
 .../StarterPlayer/StarterPlayerScripts/systems/move.luau  | 8 ++++++--
 .../StarterPlayerScripts/systems/syncMobs.luau            | 2 +-
 .../StarterPlayerScripts/systems/syncTransforms.luau      | 8 ++++++--
 6 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/demo/src/ReplicatedStorage/std/components.luau b/demo/src/ReplicatedStorage/std/components.luau
index d44a9868..5dccc1b6 100644
--- a/demo/src/ReplicatedStorage/std/components.luau
+++ b/demo/src/ReplicatedStorage/std/components.luau
@@ -8,7 +8,7 @@ local components: {
     Model: Entity<Model>,
     Player: Entity,
     Target: Entity,
-    Transform: Entity<CFrame>,
+    Transform: Entity<{ old: CFrame, new: CFrame }>,
     Velocity: Entity<number>,
 } = {
     Character = world:component(),
diff --git a/demo/src/ServerScriptService/systems/mobsMove.luau b/demo/src/ServerScriptService/systems/mobsMove.luau
index 45b44dd9..8ea1127a 100644
--- a/demo/src/ServerScriptService/systems/mobsMove.luau
+++ b/demo/src/ServerScriptService/systems/mobsMove.luau
@@ -23,7 +23,8 @@ local function mobsMove(dt: number)
         table.insert(targets, (character.PrimaryPart :: Part).Position)
     end
 
-    for mob, cf, v in world:query(Transform, Velocity):with(Mob):iter() do
+    for mob, transform, v in world:query(Transform, Velocity):with(Mob):iter() do
+        local cf = transform.new
         local p = cf.Position
 
         local target
@@ -42,7 +43,7 @@ local function mobsMove(dt: number)
         end
 
         local moving = CFrame.new(p + (target - p).Unit * dt * v)
-        world:set(mob, Transform, moving)
+        transform.new = moving
         blink.UpdateTransform.FireAll(mob, moving)
     end
 end
diff --git a/demo/src/ServerScriptService/systems/spawnMobs.luau b/demo/src/ServerScriptService/systems/spawnMobs.luau
index 9bbbb902..cbb79a79 100644
--- a/demo/src/ServerScriptService/systems/spawnMobs.luau
+++ b/demo/src/ServerScriptService/systems/spawnMobs.luau
@@ -19,7 +19,7 @@ local function spawnMobs()
 
         local id = ref()
             :set(Velocity, v)
-            :set(Transform, cf)
+            :set(Transform, { new = cf })
             :add(Mob)
             .id()
 
diff --git a/demo/src/StarterPlayer/StarterPlayerScripts/systems/move.luau b/demo/src/StarterPlayer/StarterPlayerScripts/systems/move.luau
index 84f92879..f520a3da 100644
--- a/demo/src/StarterPlayer/StarterPlayerScripts/systems/move.luau
+++ b/demo/src/StarterPlayer/StarterPlayerScripts/systems/move.luau
@@ -9,8 +9,12 @@ local Model = cts.Model
 local Transform = cts.Transform
 
 local function move(dt: number)
-    for _, cf, model in world:query(Transform, Model) do
-        model.PrimaryPart.CFrame = cf
+    for _, transform, model in world:query(Transform, Model):iter() do
+        local cf = transform.new
+        if cf ~= transform.old then
+            model.PrimaryPart.CFrame = cf
+            transform.old = cf
+        end
     end
 end
 
diff --git a/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncMobs.luau b/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncMobs.luau
index bf73e00e..36d51dfc 100644
--- a/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncMobs.luau
+++ b/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncMobs.luau
@@ -17,7 +17,7 @@ local function syncMobs()
         model.Parent = workspace
 
         ref("server-"..id)
-            :set(cts.Transform, cf)
+            :set(cts.Transform, { new = cf, old = cf })
             :set(cts.Velocity, vel)
             :set(cts.Model, model)
             :add(cts.Mob)
diff --git a/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncTransforms.luau b/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncTransforms.luau
index 01ba86e8..6d68280a 100644
--- a/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncTransforms.luau
+++ b/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncTransforms.luau
@@ -8,8 +8,12 @@ local cts = std.components
 
 local function syncTransforms()
     for _, id, cf in blink.UpdateTransform.Iter() do
-        ref("server-"..id)
-            :set(cts.Transform, cf)
+        local e = ref("server-"..id)
+        local transform = e:get(cts.Transform)
+        if not transform then
+            continue
+        end
+        transform.new = cf
     end
 end