Add cimgui

engine/libs/rlImGui/examples/simple.cpp

@@ -0,0 +1,59 @@
+/*******************************************************************************************
+*
+*   raylib-extras [ImGui] example - Simple Integration
+*
+*	This is a simple ImGui Integration
+*	It is done using C++ but with C style code
+*	It can be done in C as well if you use the C ImGui wrapper
+*	https://github.com/cimgui/cimgui
+*
+*   Copyright (c) 2021 Jeffery Myers
+*
+********************************************************************************************/
+
+#include "raylib.h"
+#include "raymath.h"
+
+#include "imgui.h"
+#include "rlImGui.h"
+
+int main(int argc, char* argv[])
+{
+	// Initialization
+	//--------------------------------------------------------------------------------------
+	int screenWidth = 1280;
+	int screenHeight = 800;
+
+	SetConfigFlags(FLAG_MSAA_4X_HINT | FLAG_VSYNC_HINT);
+	InitWindow(screenWidth, screenHeight, "raylib-Extras [ImGui] example - simple ImGui Demo");
+	SetTargetFPS(144);
+	rlImGuiSetup(true);
+
+	// Main game loop
+	while (!WindowShouldClose())    // Detect window close button or ESC key
+	{
+		BeginDrawing();
+		ClearBackground(DARKGRAY);
+
+		// start ImGui Conent
+		rlImGuiBegin();
+
+		// show ImGui Content
+		bool open = true;
+		ImGui::ShowDemoWindow(&open);
+
+		// end ImGui Content
+		rlImGuiEnd();
+
+		EndDrawing();
+		//----------------------------------------------------------------------------------
+	}
+	rlImGuiShutdown();
+
+	// De-Initialization
+	//--------------------------------------------------------------------------------------   
+	CloseWindow();        // Close window and OpenGL context
+	//--------------------------------------------------------------------------------------
+
+	return 0;
+}