feat: draw bugged texture

Engine/engine/constants.hpp

@@ -106,7 +106,7 @@ namespace constants
     };
 
     inline const char* FRAGMENT_SHADER_TEXTURE_FILENAME {
-        ".Shaders/fragmentShaderTexture.fs"
+        "./Shaders/fragmentShaderTexture.fs"
     };
 
     // we specify three vertices

Engine/engine/draw.cpp

@@ -4,6 +4,7 @@
 #include <GLFW/glfw3.h>
 #include <iostream>
 #include <cmath>
+#include <filesystem>
 #include "draw.hpp"
 #include "renderLoop.hpp"
 #include "shaders.hpp"
@@ -11,6 +12,7 @@
 #include "misc.hpp"
 #include "shader.hpp"
 #include "textures.hpp"
+#include "stb_image.h"
 
 int drawFigure(const int whatToDraw)
 {
@@ -145,6 +147,87 @@ int drawSquareClass(const char* vertexPath, const char* fragmentPath, const bool
 int drawDebilMode() {
     // https://stackoverflow.com/questions/33883609/opengl-linker-error-linking-with-uncompiled-shader
      Shader ourShader(constants::VERTEX_SHADER_TEXTURE_FILENAME, constants::FRAGMENT_SHADER_TEXTURE_FILENAME);
+
+    float vertices[] = {
+        // positions          // colors           // texture coords
+            0.5f,  0.5f, 0.0f,   1.0f, 0.0f, 0.0f,   1.0f, 1.0f, // top right
+            0.5f, -0.5f, 0.0f,   0.0f, 1.0f, 0.0f,   1.0f, 0.0f, // bottom right
+        -0.5f, -0.5f, 0.0f,   0.0f, 0.0f, 1.0f,   0.0f, 0.0f, // bottom left
+        -0.5f,  0.5f, 0.0f,   1.0f, 1.0f, 0.0f,   0.0f, 1.0f  // top left 
+    };
+    unsigned int indices[] = {
+        0, 1, 3, // first triangle
+        1, 2, 3  // second triangle
+    };
+
+    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);
+
+    // position attribute
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)0);
+    glEnableVertexAttribArray(0);
+    // color attribute
+    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(3 * sizeof(float)));
+    glEnableVertexAttribArray(1);
+    // texture coord attribute
+    glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(6 * sizeof(float)));
+    glEnableVertexAttribArray(2);
+
+        // load and create a texture 
+    // -------------------------
+    unsigned int texture1, texture2;
+    // texture 1
+    // ---------
+    glGenTextures(1, &texture1);
+    glBindTexture(GL_TEXTURE_2D, texture1); 
+     // set the texture wrapping parameters
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);	// set texture wrapping to GL_REPEAT (default wrapping method)
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+    // set texture filtering parameters
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    // load image, create texture and generate mipmaps
+    int width = 430, height = 288, nrChannels;
+    stbi_set_flip_vertically_on_load(true); // tell stb_image.h to flip loaded texture's on the y-axis.
+    // The FileSystem::getPath(...) is part of the GitHub repository so we can find files on any IDE/platform; replace it with your own image path.
+    unsigned char *data = stbi_load("assets/Preview.png", &width, &height, &nrChannels, 0);
+    if (data)
+    {
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
+        glGenerateMipmap(GL_TEXTURE_2D);
+    }
+    else
+    {
+        stbi_image_free(data);
+        std::cout << "Failed to load texture" << std::endl;
+    }
+    stbi_image_free(data);
+
+                glActiveTexture(GL_TEXTURE0);
+    glBindTexture(GL_TEXTURE_2D, texture1);
+    ourShader.use(); // don't forget to activate/use the shader before setting uniforms!
+    // or set it via the texture class
+    ourShader.setInt("texture1", 1);
+            glBindVertexArray(VAO);
+        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+
+    glDeleteVertexArrays(1, &VAO);
+    glDeleteBuffers(1, &VBO);
+    glDeleteBuffers(1, &EBO);
+
+
+
+
     return 0;
 }
 

Engine/engine/renderLoop.cpp

@@ -159,6 +159,8 @@ int renderLoopInside(GLFWwindow *window, int whatToDraw)
     // There is GL_COLOR_BUFFER_BIT, GL_DEPTH_BUFFER_BIT and GL_STENCIL_BUFFER_BIT
     glClear(GL_COLOR_BUFFER_BIT);
 
+
+
     if (drawFigure(whatToDraw) == -1)
     {
         print("error with drawing!");