From 2fd1d6db24ba943d643bde02c65aa2b53229879b Mon Sep 17 00:00:00 2001
From: Linloir <3145078758@qq.com>
Date: Sat, 17 Dec 2022 11:41:13 +0800
Subject: [PATCH] [CORE][ADD] Enable cross context model transferring - Reload
 texture on another context - Copy meshes - [BUG] memory leak (not fixed yet)

---
 FinalProject/renderable.cpp |  9 +++++++++
 FinalProject/renderable.h   | 11 ++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/FinalProject/renderable.cpp b/FinalProject/renderable.cpp
index 86463a1..27e4eef 100644
--- a/FinalProject/renderable.cpp
+++ b/FinalProject/renderable.cpp
@@ -6,6 +6,10 @@ Renderable::Renderable(Model* model) : _model(model) {}
 
 Renderable::Renderable(Model* model, glm::vec3 position) : _model(model), _position(position) {}
 
+void Renderable::setModel(Model* model) {
+    _model = model;
+}
+
 void Renderable::move(glm::vec3 deltaVec) {
     _position += deltaVec;
 }
@@ -31,6 +35,11 @@ void Renderable::setScale(float scale) {
 }
 
 void Renderable::render(ShaderProgram shader) {
+    // Check if initialized
+    if (_model == nullptr) {
+        Logger::error("Tries to render an uninitialized renderable object");
+        return;
+    }
     // Set model matrix
     shader.setUniform("model", modelMatrix());
     // Render
diff --git a/FinalProject/renderable.h b/FinalProject/renderable.h
index 7e5912a..6382901 100644
--- a/FinalProject/renderable.h
+++ b/FinalProject/renderable.h
@@ -7,8 +7,16 @@
 #include "shader.h"
 
 class Renderable {
+public:
+    static Renderable empty() {
+        return Renderable();
+    }
+
 private:
-    Model* _model;
+    Renderable() {}
+
+private:
+    Model* _model = nullptr;
     glm::vec3 _position = glm::vec3(0.0f);
     glm::mat4 _rotation = glm::mat4(1.0f);
     glm::vec3 _scale = glm::vec3(1.0f);
@@ -18,6 +26,7 @@ public:
     Renderable(Model* model, glm::vec3 position);
 
 public:
+    void setModel(Model* model);
     void move(glm::vec3 deltaVec);
     void setPosition(glm::vec3 position);
     void rotate(glm::vec3 axis, float deltaAngle);