From 748528a31fd6266c961528b2f9ec05cca724ddcd Mon Sep 17 00:00:00 2001
From: "Zed A. Shaw" <zed.shaw@gmail.com>
Date: Thu, 27 Aug 2026 14:41:36 -0400
Subject: [PATCH] Quick little way to spawn in some popcorns. Hit M.

---
 17-refactor-bug-fix/src/main.cpp  | 14 +++++++++-----
 17-refactor-bug-fix/src/scene.cpp |  7 +++++++
 17-refactor-bug-fix/src/scene.hpp |  1 +
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/17-refactor-bug-fix/src/main.cpp b/17-refactor-bug-fix/src/main.cpp
index 01b88ad..cf5ee51 100644
--- a/17-refactor-bug-fix/src/main.cpp
+++ b/17-refactor-bug-fix/src/main.cpp
@@ -16,13 +16,13 @@ void framebuffer_size_callback(GLFWwindow *, int width, int height) {
 }
 
 void mouse_callback(GLFWwindow *window, double xpos, double ypos) {
-  Camera* camera = static_cast<Camera*>(glfwGetWindowUserPointer(window));
-  camera->mouse_move(xpos, ypos);
+  Scene* scene = static_cast<Scene*>(glfwGetWindowUserPointer(window));
+  scene->camera.mouse_move(xpos, ypos);
 }
 
 void scroll_callback(GLFWwindow *window, double xoffset, double yoffset) {
-  Camera* camera = static_cast<Camera*>(glfwGetWindowUserPointer(window));
-  camera->mouse_scroll(xoffset, yoffset);
+  Scene* scene = static_cast<Scene*>(glfwGetWindowUserPointer(window));
+  scene->camera.mouse_scroll(xoffset, yoffset);
 }
 
 GLFWwindow* create_window() {
@@ -65,6 +65,10 @@ void process_input(GLFWwindow *window, Scene& scene) {
     scene.camera.right();
   }
 
+  if(glfwGetKey(window, GLFW_KEY_M) == GLFW_PRESS) {
+    scene.spawn("popcorn", scene.camera.position);
+  }
+
   if(glfwGetKey(window, GLFW_KEY_L) == GLFW_PRESS) {
     for(auto& light : scene.light.directional) {
       light.adjust(-0.01f);
@@ -109,7 +113,7 @@ int main() {
   auto window = create_window();
   auto scene = setup();
 
-  glfwSetWindowUserPointer(window, &scene.camera);
+  glfwSetWindowUserPointer(window, &scene);
 
   while(!glfwWindowShouldClose(window)) {
     update(window, scene);
diff --git a/17-refactor-bug-fix/src/scene.cpp b/17-refactor-bug-fix/src/scene.cpp
index 5836d5d..d39db47 100644
--- a/17-refactor-bug-fix/src/scene.cpp
+++ b/17-refactor-bug-fix/src/scene.cpp
@@ -57,3 +57,10 @@ void Scene::render(GLFWwindow* window) {
 void Scene::cleanup() {
   shader.cleanup();
 }
+
+void Scene::spawn(const std::string& name, components::Position& position) {
+  things.emplace_back(
+      models.at(name),
+      position,
+      materials.at(name));
+}
diff --git a/17-refactor-bug-fix/src/scene.hpp b/17-refactor-bug-fix/src/scene.hpp
index b5dd673..601c8c4 100644
--- a/17-refactor-bug-fix/src/scene.hpp
+++ b/17-refactor-bug-fix/src/scene.hpp
@@ -60,4 +60,5 @@ struct Scene {
   void draw_model(Model& scene_model, Material& material, glm::mat4& projection, glm::mat4& view, glm::vec3& position);
   void render(GLFWwindow* window);
   void cleanup();
+  void spawn(const std::string& name, components::Position& position);
 };