Added camera auto resize method

Author: eduardodoria

engine/core/Engine.cpp

@@ -245,7 +245,7 @@ void Engine::pauseGameEvents(bool pause) {
 void Engine::includeScene(size_t index, Scene* scene){
     if (viewLoaded){
         scene->load();
-        scene->updateSizeFromCamera();
+        scene->updateCameraSize();
     }
 }
 
@@ -670,7 +670,7 @@ void Engine::systemViewChanged(){
     }
 
     for (int i = 0; i < scenes.size(); i++){
-        scenes[i]->updateSizeFromCamera();
+        scenes[i]->updateCameraSize();
     }
 
     onViewChanged.call();

engine/core/Scene.cpp

@@ -50,12 +50,15 @@ void Scene::setCamera(Camera* camera){
 
 void Scene::setCamera(Entity camera){
     if (CameraComponent* cameracomp = findComponent<CameraComponent>(camera)){
-        this->camera = camera;
-        if (defaultCamera != NULL_ENTITY){
-            destroyEntity(defaultCamera);
-            defaultCamera = NULL_ENTITY;
+        if (camera != this->camera){
+            this->camera = camera;
+            if (defaultCamera != NULL_ENTITY){
+                destroyEntity(defaultCamera);
+                defaultCamera = NULL_ENTITY;
+            }
+            cameracomp->needUpdate = true;
+            updateCameraSize();
         }
-        cameracomp->needUpdate = true;
     }else{
         Log::error("Invalid camera entity: need CameraComponent");
     }
@@ -189,6 +192,6 @@ void Scene::update(double dt){
     }
 }
 
-void Scene::updateSizeFromCamera(){
+void Scene::updateCameraSize(){
     getSystem<RenderSystem>()->updateCameraSize(getCamera());
 }

engine/core/Scene.h

@@ -76,7 +76,7 @@ namespace Supernova{
         void draw();
         void update(double dt);
 
-        void updateSizeFromCamera();
+        void updateCameraSize();
 
         void setCamera(Camera* camera);
         void setCamera(Entity camera);

engine/core/object/Camera.cpp

@@ -86,6 +86,22 @@ void Camera::setPerspective(float yfov, float aspect, float nearValue, float far
     camera.needUpdate = true;
 }
 
+void Camera::setAutoResize(bool autoResize){
+    CameraComponent& camera = getComponent<CameraComponent>();
+
+    if (camera.autoResize != autoResize){
+        camera.autoResize = autoResize;
+
+        camera.needUpdate = true;
+    }
+}
+
+bool Camera::isAutoResize() const{
+    CameraComponent& camera = getComponent<CameraComponent>();
+
+    return camera.autoResize;
+}
+
 void Camera::setNearClip(float nearValue){
     CameraComponent& camera = getComponent<CameraComponent>();
 

engine/core/object/Camera.h

@@ -27,6 +27,9 @@ namespace Supernova{
         void setOrtho(float left, float right, float bottom, float top, float nearValue, float farValue);
         void setPerspective(float yfov, float aspect, float nearValue, float farValue);
 
+        void setAutoResize(bool autoResize);
+        bool isAutoResize() const;
+
         void setNearClip(float nearValue);
         float getNearClip() const;
 

engine/core/script/binding/CoreClassesLua.cpp

@@ -509,6 +509,7 @@ void LuaBinding::registerCoreClasses(lua_State *L){
         .addFunction("destroy", &Scene::destroy)
         .addFunction("draw", &Scene::draw)
         .addFunction("update", &Scene::update)
+        .addFunction("updateCameraSize", &Scene::updateCameraSize)
         .addProperty("camera", (Entity(Scene::*)()const)&Scene::getCamera, (void(Scene::*)(Entity))&Scene::setCamera)
         .addFunction("setCamera", 
             luabridge::overload<Camera*>(&Scene::setCamera),

engine/core/script/binding/ObjectClassesLua.cpp

@@ -221,6 +221,7 @@ void LuaBinding::registerObjectClasses(lua_State *L){
         .addFunction("activate", &Camera::activate)
         .addFunction("setOrtho", &Camera::setOrtho)
         .addFunction("setPerspective", &Camera::setPerspective)
+        .addProperty("autoResize",  &Camera::isAutoResize, &Camera::setAutoResize)
         .addProperty("nearClip",  &Camera::getNearClip, &Camera::setNearClip)
         .addProperty("farClip",  &Camera::getFarClip, &Camera::setFarClip)
         .addProperty("leftClip",  &Camera::getLeftClip, &Camera::setLeftClip)