feat(engine): add LocalToWorld automagically

GameDevTecnico · Jun 18, 2023 · 0d09018 · 0d09018
1 parent 2631d4e
commit 0d09018
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Showing 2 changed files with 17 additions and 3 deletions.
diff --git a/engine/samples/renderer/main.cpp b/engine/samples/renderer/main.cpp
@@ -28,7 +28,7 @@ static void setupScene(Commands commands, Write<Assets> assets, Write<ActiveCame
 
     // Create a simple palette with 3 materials (red, green and blue).
     (*renderer)->setPalette(Palette{{
-        {{1, 0, 0, 1}},
+        {{100, 0, 0, 1}},
         {{0, 1, 0, 1}},
         {{0, 0, 1, 1}},
     }});
@@ -49,8 +49,8 @@ static void setupScene(Commands commands, Write<Assets> assets, Write<ActiveCame
             .entity();
 
     // Split the screen but use the same camera.
-    camera->entities[1] = camera->entities[0];
-    camera->entities[2] = camera->entities[0];
+    //camera->entities[1] = camera->entities[0];
+    //camera->entities[2] = camera->entities[0];
 
     // Spawn a point light.
     commands.create()

diff --git a/engine/src/cubos/engine/transform/plugin.cpp b/engine/src/cubos/engine/transform/plugin.cpp
@@ -2,11 +2,24 @@
 
 #include <cubos/engine/transform/plugin.hpp>
 
+using cubos::core::ecs::Commands;
 using cubos::core::ecs::OptRead;
 using cubos::core::ecs::Query;
 using cubos::core::ecs::Write;
 using namespace cubos::engine;
 
+static void autoLocalToWorld(Commands cmds,
+                             Query<OptRead<LocalToWorld>, OptRead<Position>, OptRead<Rotation>, OptRead<Scale>> query)
+{
+    for (auto [entity, localToWorld, position, rotation, scale] : query)
+    {
+        if (!localToWorld && (position || rotation || scale))
+        {
+            cmds.add(entity, LocalToWorld{});
+        }
+    }
+}
+
 static void applyTransform(Query<Write<LocalToWorld>, OptRead<Position>, OptRead<Rotation>, OptRead<Scale>> query)
 {
     for (auto [entity, localToWorld, position, rotation, scale] : query)
@@ -36,5 +49,6 @@ void cubos::engine::transformPlugin(Cubos& cubos)
     cubos.addComponent<Scale>();
     cubos.addComponent<LocalToWorld>();
 
+    cubos.system(autoLocalToWorld).tagged("cubos.transform.update");
     cubos.system(applyTransform).tagged("cubos.transform.update");
 }