From b3bd9857a4e69e73fe75d5b47da1292afa9d79a8 Mon Sep 17 00:00:00 2001
From: MagicTINTIN <valentinservieres@gmail.com>
Date: Tue, 14 Feb 2023 22:13:27 +0100
Subject: [PATCH] added pause and debug mode

---
 main.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 59 insertions(+), 15 deletions(-)

diff --git a/main.c b/main.c
index 17ed1a2..aabe447 100644
--- a/main.c
+++ b/main.c
@@ -1,23 +1,64 @@
+#define APPNAMEVERSION "EnginPasTangible (alpha 0.2.4)"
 #include "./Libraries/glad/glad.h"
 #include <stdio.h>
 #include <math.h>
-
+#include <stdbool.h>
 #include "./Libraries/GLFW/glfw3.h"
 #define STB_IMAGE_IMPLEMENTATION
 #include "./Libraries/stb/stb_image.h"
 #include "headers/shader.h"
 #define FULLSCREEN 0
+/* ## DEBUG MODE ##
+ * 0 for all
+ * 1 for nothing
+ * 2 for FPS
+ * 3 for cursor position
+ * 
+ * For instance if you want fps and position set the value to 2*3=6
+ */
+#define DEBUG_MODE 1
 
 GLuint screenWidth = 720, screenHeight = 480;
 const GLFWvidmode* mode;
 GLFWwindow* window;
 
+bool pause;
+
 void setupVAO();
 //GLuint getTextureHandle(char* path);
 unsigned int VAO;
 
 float currentTime, deltaTime, lastFrame,startTime;
 
+static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
+{
+  if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
+  {
+    //glfwSetWindowShouldClose(window, GLFW_TRUE);
+    pause=!pause;
+    printf(pause ? "En pause\n" : "En fonctionnement\n");
+    if (pause)
+    {
+      glfwSetWindowTitle(window, "EnginPasTangible (En pause)");
+      glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+    }
+    else
+    {
+      glfwSetWindowTitle(window, APPNAMEVERSION);
+      glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
+    }
+  }
+  /*if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
+    glfwSetCursorPos(window, 640/2, 480/2);*/
+}
+
+
+static void cursor_position_callback(GLFWwindow* window, double xpos, double ypos)
+{
+  if (DEBUG_MODE % 3 == 0)
+    printf("x:%f | y:%f\n",xpos, ypos);
+}
+
 int main (){
 
   // Window setup
@@ -31,8 +72,8 @@ int main (){
   glfwWindowHint(GLFW_RESIZABLE,GL_FALSE);//#####
 	//glfwWindowHint(GLFW_DECORATED,GL_FALSE);
 	//glfwWindowHint(GLFW_CONTEXT_NO_ERROR,GL_FALSE);
-
-  window = glfwCreateWindow(screenWidth, screenHeight, "EnginPasTangible (alpha 0.2.2)", NULL, NULL);
+  pause = false;
+  window = glfwCreateWindow(screenWidth, screenHeight, APPNAMEVERSION, NULL, NULL);
     
   if (window == NULL)
   {
@@ -68,11 +109,9 @@ int main (){
   // for alpha (opacity)
   //glEnable (GL_BLEND); glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-  // GLFWimage images[2];
-  // images[0] = load_icon("assets/enginpastangible.png");
-  // images[1] = load_icon("assets/icon.png");
-  
-  // glfwSetWindowIcon(window, 2, images);
+  glfwSetKeyCallback(window, key_callback);
+ 	glfwSetCursorPosCallback(window, cursor_position_callback);
+  glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
 
   GLFWimage images[1]; 
   images[0].pixels = stbi_load("./assets/icon.png", &images[0].width, &images[0].height, 0, 4); //rgba channels 
@@ -85,12 +124,23 @@ int main (){
 	startTime = glfwGetTime();
   while (!glfwWindowShouldClose(window))
   {
+    // glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
+    // -------------------------------------------------------------------------------
+    glfwSwapBuffers(window);
+    glfwPollEvents();
 
+    if (pause)
+    {
+      glClearColor(.1f, .2f, 0.3f, 1.0f);
+      glClear(GL_COLOR_BUFFER_BIT);
+      continue;
+    }
     currentTime = glfwGetTime();
     deltaTime = currentTime - lastFrame;
     lastFrame = currentTime;
     gcvt(1/deltaTime,4,FPS);
-    printf("FPS : %s\n",FPS);
+    if (DEBUG_MODE % 2 == 0)
+      printf("FPS : %s\n",FPS);
 
     glfwGetWindowSize(window, &window_width, &window_height);
     glViewport(0, 0, window_width, window_height);
@@ -107,12 +157,6 @@ int main (){
 		glUniform3f(glGetUniformLocation(quad_shader, "iCamDir"), camDirX,camDirY,camDirZ);
 				
     // glBindVertexArray(0); // no need to unbind it every time 
-
-    // glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
-    // -------------------------------------------------------------------------------
-    glfwSwapBuffers(window);
-    glfwPollEvents();
-
   }
 
   // Optional cleaning up bc OS will likely do it for us, but is a good practice. Note that shaders are deleted in shader.h