Basic rectangle drawing

SandboxApplication/Sandbox.cpp

@@ -10,36 +10,74 @@ extern "C"
     #include "lualib.h"
 }
 
+float vertices[] = {
+     0.5f, 0.5f, 0.0f, // top, right
+      0.5f, -0.5f, 0.0f, // bottom right
+      -0.5f, -0.5f, 0.0f, // bottom left
+      -0.5f, 0.5f, 0.0f // top left
+};
 
+unsigned int indices[] = {
+    0,1,3,
+    1,2,3
+};
 
 int main (int argc, char *argv[] ){
 
-
     BarinkWindow GameWindow(800, 600);
-
-    
-    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)){
-        printf("Failed to initialize GLAD!\n");
-        return -1;
-    }
+   
     std::string vertexShaderSource = "build/SandboxApplication/Debug/test.vs";
     std::string fragmentShaderSource = "build/SandboxApplication/Debug/test.fs";
-    //Shader shader (vertexShaderSource, fragmentShaderSource);
+    Shader shader (vertexShaderSource, fragmentShaderSource);
+
+    spdlog::info("Working directory: {}", argv[0]);
 
     lua_State* L = luaL_newstate();
     luaL_openlibs(L);
     luaL_dostring(L, "print('BarinkEngine')");
-    luaL_dofile(L,"script.lua");
+    luaL_dofile(L,"./script.lua");
+
+    unsigned int VBO, VAO, EBO;
+
+    glGenVertexArrays(1, &VAO);
+    glGenBuffers(1, &VBO);
+    glGenBuffers(1, &EBO);
+
+
+    glBindVertexArray(VAO);
+
+    glBindBuffer(GL_ARRAY_BUFFER, VBO);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
+
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
+    glEnableVertexAttribArray(0);
+
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+
+    glBindVertexArray(0);
+
 
-    glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
 
-    
 
     while (!GameWindow.WindowShouldClose()) {
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT) ;
 
+        shader.Use();
+        glBindVertexArray(VAO);
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+        glBindVertexArray(0);
 
         GameWindow.Poll();
     }
+
+
+    glDeleteVertexArrays(1, &VAO);
+    glDeleteBuffers(1, &EBO);
+    
+
 }
 

SandboxApplication/script.lua

@@ -0,0 +1 @@
+print("Hello world!")