From a7b4671517d80bd37d8c592dfb0480d6d3bd2b56 Mon Sep 17 00:00:00 2001
From: EmaMaker <emamaker0@gmail.com>
Date: Tue, 18 Jul 2023 20:03:59 +0200
Subject: [PATCH] toggle wireframe with F

---
 include/globals.hpp | 1 +
 src/main.cpp        | 8 ++++++++
 src/renderer.cpp    | 4 +++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/globals.hpp b/include/globals.hpp
index 8ce0f07..470e729 100644
--- a/include/globals.hpp
+++ b/include/globals.hpp
@@ -14,6 +14,7 @@
 
 extr Camera theCamera;
 constexpr int chunks_volume = static_cast<int>(1.333333333333*M_PI*(RENDER_DISTANCE*RENDER_DISTANCE*RENDER_DISTANCE));
+extr bool wireframe;
 
 extr uint32_t MORTON_XYZ_ENCODE[CHUNK_SIZE][CHUNK_SIZE][CHUNK_SIZE];
 extr uint32_t MORTON_XYZ_DECODE[CHUNK_VOLUME][3];
diff --git a/src/main.cpp b/src/main.cpp
index 90afc63..fdb4efa 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -21,6 +21,7 @@ int frames = 0;
 
 float lastBlockPick=0.0;
 bool blockpick = false;
+bool canChangeWireframe = true;
 
 int main()
 {
@@ -62,6 +63,7 @@ int main()
     std::cout << "Using GPU: " << glGetString(GL_VENDOR) << " " << glGetString(GL_RENDERER) << "\n";
 
     SpaceFilling::initLUT();
+    wireframe = false;
     renderer::init();
     std::thread chunkmanager_thread = chunkmanager::init();
 
@@ -140,6 +142,12 @@ void processInput(GLFWwindow *window)
 	lastBlockPick=glfwGetTime();
     }
 
+    if (glfwGetKey(window, GLFW_KEY_F) == GLFW_PRESS && canChangeWireframe){
+	wireframe = !wireframe;
+	canChangeWireframe = false;
+    }
+    if (glfwGetKey(window, GLFW_KEY_F) == GLFW_RELEASE) canChangeWireframe = true;
+
     // Reset blockpicking if enough time has passed
     if(glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_1) == GLFW_RELEASE && glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_2) == GLFW_RELEASE) blockpick = false;
 
diff --git a/src/renderer.cpp b/src/renderer.cpp
index 290bbe3..7fb41a5 100644
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -61,6 +61,9 @@ namespace renderer{
 	    chunkmesher::getMeshDataQueue().push(m);
 	}
 
+	if(wireframe) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+	else glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+
 	for(auto& c : chunks_torender){
 	    float dist = glm::distance(c->getPosition(), cameraChunkPos);
 	    if(dist <= static_cast<float>(RENDER_DISTANCE)){
@@ -95,7 +98,6 @@ namespace renderer{
 		{
 		    if(c->numTriangles > 0)
 		    {
-			// glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); // wireframe mode
 			theShader->setMat4("model", model);
 			theShader->setMat4("view", theCamera.getView());
 			theShader->setMat4("projection", theCamera.getProjection());