C-testing-grounds/src/main.c

#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <math.h>
#include <stdio.h>

#define WIDTH 800
#define HEIGHT 600

// Function to draw the cube
void drawCube() {
    glBegin(GL_QUADS);

    // Front face
    glColor3f(1.0f, 0.0f, 0.0f);
    glVertex3f(-1.0f, -1.0f, 1.0f);
    glVertex3f(1.0f, -1.0f, 1.0f);
    glVertex3f(1.0f, 1.0f, 1.0f);
    glVertex3f(-1.0f, 1.0f, 1.0f);

    // Back face
    glColor3f(0.0f, 1.0f, 0.0f);
    glVertex3f(-1.0f, -1.0f, -1.0f);
    glVertex3f(-1.0f, 1.0f, -1.0f);
    glVertex3f(1.0f, 1.0f, -1.0f);
    glVertex3f(1.0f, -1.0f, -1.0f);

    // Top face
    glColor3f(0.0f, 0.0f, 1.0f);
    glVertex3f(-1.0f, 1.0f, -1.0f);
    glVertex3f(-1.0f, 1.0f, 1.0f);
    glVertex3f(1.0f, 1.0f, 1.0f);
    glVertex3f(1.0f, 1.0f, -1.0f);

    // Bottom face
    glColor3f(1.0f, 1.0f, 0.0f);
    glVertex3f(-1.0f, -1.0f, -1.0f);
    glVertex3f(1.0f, -1.0f, -1.0f);
    glVertex3f(1.0f, -1.0f, 1.0f);
    glVertex3f(-1.0f, -1.0f, 1.0f);

    // Right face
    glColor3f(1.0f, 0.0f, 1.0f);
    glVertex3f(1.0f, -1.0f, -1.0f);
    glVertex3f(1.0f, 1.0f, -1.0f);
    glVertex3f(1.0f, 1.0f, 1.0f);
    glVertex3f(1.0f, -1.0f, 1.0f);

    // Left face
    glColor3f(0.0f, 1.0f, 1.0f);
    glVertex3f(-1.0f, -1.0f, -1.0f);
    glVertex3f(-1.0f, -1.0f, 1.0f);
    glVertex3f(-1.0f, 1.0f, 1.0f);
    glVertex3f(-1.0f, 1.0f, -1.0f);

    glEnd();
}

int main() {
    // Initialize GLFW
    if (!glfwInit()) {
        fprintf(stderr, "Failed to initialize GLFW\n");
        return -1;
    }

    // Create a windowed mode window and its OpenGL context
    GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "Rotating Cube", NULL, NULL);
    if (!window) {
        glfwTerminate();
        return -1;
    }

    // Make the window's context current
    glfwMakeContextCurrent(window);

    // Loop until the user closes the window
    while (!glfwWindowShouldClose(window)) {
        // Clear the framebuffer
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        
        // Set up the view
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluPerspective(45.0f, (float)WIDTH / (float)HEIGHT, 0.1f, 100.0f);
        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();
        gluLookAt(3, 3, 3, 0, 0, 0, 0, 1, 0); // Eye position, look at position, up direction

        // Rotate the cube
        static double angle = 0;
        glRotated(angle, 0, 1, 1); // Rotate around x, y, and z axes
        angle += 0.5;

        // Draw the cube
        drawCube();

        // Swap front and back buffers
        glfwSwapBuffers(window);

        // Poll for and process events
        glfwPollEvents();
    }

    glfwTerminate();
    return 0;
}