Only buffer mesh each frame.

src/dawn/component/display/mesh/CubeMeshComponent.cpp

@@ -26,3 +26,8 @@ void CubeMeshComponent::meshLoad(std::shared_ptr<SceneLoadContext> ctx) {
     this->size = glm::vec3(1.0f, 1.0f, 1.0f);
   }
 }
+
+void CubeMeshComponent::setSize(const glm::vec3 &size) {
+  this->size = size;
+  this->invalidate();
+}

src/dawn/component/display/mesh/CubeMeshComponent.hpp

@@ -13,5 +13,13 @@ namespace Dawn {
 
       void meshLoad(std::shared_ptr<SceneLoadContext> ctx) override;
       void meshBuffer(std::shared_ptr<Mesh> mesh) override;
+
+    public:
+      /**
+       * Sets the size of the cube.
+       * 
+       * @param size Size of the cube.
+       */
+      void setSize(const glm::vec3 &size);
   };
 }

src/dawn/component/display/mesh/MeshComponent.cpp

@@ -4,6 +4,7 @@
 // https://opensource.org/licenses/MIT
 
 #include "MeshComponent.hpp"
+#include "scene/Scene.hpp"
 #include "component/display/MeshRenderer.hpp"
 
 using namespace Dawn;
@@ -11,11 +12,21 @@ using namespace Dawn;
 void MeshComponent::buffer() {
   if(!mesh) mesh = std::make_shared<Mesh>();
   this->meshBuffer(mesh);
+  this->valid = true;
+  events.clear();
+}
+
+void MeshComponent::invalidate() {
+  if(valid) return;
+  valid = false;
+  events.push_back(getScene()->onNextFrame.listen([this]() {
+    this->buffer();
+    valid = true;
+  }));
 }
 
 void MeshComponent::onInit() {
   this->buffer();
-
   auto renderer = getItem()->getComponent<MeshRenderer>();
   if(renderer) renderer->mesh = mesh;
 }

src/dawn/component/display/mesh/MeshComponent.hpp

@@ -9,6 +9,14 @@
 
 namespace Dawn {
   class MeshComponent : public SceneComponent {
+    private:
+      bool_t valid = true;
+
+      /**
+       * Buffers the mesh.
+       */
+      void buffer();
+
     protected:
       /**
        * Called when the mesh should be loaded.
@@ -25,9 +33,9 @@ namespace Dawn {
       virtual void meshBuffer(std::shared_ptr<Mesh> mesh) = 0;
 
       /**
-       * Buffers the mesh.
+       * Invalidates the mesh.
        */
-      void buffer();
+      void invalidate();
 
     public:
       std::shared_ptr<Mesh> mesh;

src/dawn/component/display/mesh/PlaneMeshComponent.cpp

@@ -66,3 +66,28 @@ void PlaneMeshComponent::meshBuffer(std::shared_ptr<Mesh> mesh) {
     uv
   );
 }
+
+void PlaneMeshComponent::setColumns(const int32_t columns) {
+  assertTrue(columns > 0, "Columns must be greater than 0.");
+  this->columns = columns;
+  this->invalidate();
+}
+
+
+void PlaneMeshComponent::setRows(const int32_t rows) {
+  assertTrue(rows > 0, "Rows must be greater than 0.");
+  this->rows = rows;
+  this->invalidate();
+}
+
+void PlaneMeshComponent::setPlaneSize(const glm::vec2 &planeSize) {
+  assertTrue(planeSize.x > 0.0f, "Plane size x must be greater than 0.");
+  assertTrue(planeSize.y > 0.0f, "Plane size y must be greater than 0.");
+  this->planeSize = planeSize;
+  this->invalidate();
+}
+
+void PlaneMeshComponent::setUV(const glm::vec4 &uv) {
+  this->uv = uv;
+  this->invalidate();
+}

src/dawn/component/display/mesh/PlaneMeshComponent.hpp

@@ -18,6 +18,9 @@ namespace Dawn {
       void meshBuffer(std::shared_ptr<Mesh> mesh) override;
 
     public:
-
+      void setColumns(const int32_t columns);
+      void setRows(const int32_t rows);
+      void setPlaneSize(const glm::vec2 &planeSize);
+      void setUV(const glm::vec4 &uv);
   };
 }

src/dawn/component/display/mesh/QuadMeshComponent.cpp

@@ -35,10 +35,10 @@ void QuadMeshComponent::meshLoad(std::shared_ptr<SceneLoadContext> ctx) {
 
 void QuadMeshComponent::setPositions(const glm::vec4 &positions) {
   this->positions = positions;
-  this->buffer();
+  this->invalidate();
 }
 
 void QuadMeshComponent::setUVs(const glm::vec4 &uvs) {
   this->uvs = uvs;
-  this->buffer();
+  this->invalidate();
 }

src/dawn/event/Event.hpp

@@ -32,6 +32,13 @@ namespace Dawn {
         }
       }
 
+      /**
+       * Clears all listeners from the event.
+       */
+      void clear() {
+        listeners.clear();
+      }
+
       /**
        * Listens to the event.
        * @param listener The listener to add.

src/dawn/scene/Scene.cpp

@@ -54,6 +54,9 @@ void Scene::update() {
   sceneItemsToRemove.clear();
 
   // Tick scene items.
+  onNextFrame.emit();
+  onNextFrame.clear();
+
   float_t delta = getGame()->timeManager.delta;
   if(paused) {
     onPausedUpdate.emit(delta);

src/dawn/scene/Scene.hpp

@@ -29,6 +29,7 @@ namespace Dawn {
     public:
       Event<float_t> onUnpausedUpdate;
       Event<float_t> onPausedUpdate;
+      Event<> onNextFrame;
       TimeoutEvent onTimeout;
       IntervalEvent onInterval;
 

src/dawnrpg/component/RPGMap.cpp

@@ -0,0 +1,20 @@
+// Copyright (c) 2024 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "RPGMap.hpp"
+
+using namespace Dawn;
+
+void RPGMap::onInit() {
+  auto mesh = getItem()->getComponent<PlaneMeshComponent>();
+  
+}
+
+void RPGMap::onDispose() {
+}
+
+void RPGMap::load(std::shared_ptr<SceneLoadContext> ctx) {
+  SceneComponent::load(ctx);
+}

src/dawnrpg/component/RPGMap.hpp

@@ -0,0 +1,18 @@
+// Copyright (c) 2024 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "component/display/mesh/PlaneMeshComponent.hpp"
+
+namespace Dawn {
+  class RPGMap final : public SceneComponent {
+    private:
+
+    public:
+      void onInit() override;
+      void onDispose() override;
+      void load(std::shared_ptr<SceneLoadContext> ctx) override;
+  };
+}