"""
#define STB_IMAGE_IMPLEMENTATION
#include <glad/glad.h>
#include <GLFW/glfw3.h>
#include <iostream>
#include <math.h>
#include "Shader.h"
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
#include <ctime>
#include "stb_image.h"


// Camera parameters
glm::vec3 cameraPos   = glm::vec3(0.0f, 0.0f,  3.0f);
glm::vec3 cameraFront = glm::vec3(0.0f, 0.0f, -1.0f);
glm::vec3 cameraUp    = glm::vec3(0.0f, 1.0f,  0.0f);

// Delta time
float deltaTime = 0.0f;
float lastFrame = 0.0f;

// Mouse parameters
float lastX = 400;
float lastY = 300;
const float sensitivity = 0.01f;
float yaw = -90.0f;
float pitch = 0.0f;
bool firstMouse = true;
float zoom = 45.0f;

// Light
glm::vec3 lightPos(1.2f, 5.0f, 8.0f);

void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
    glViewport(0, 0, width, height);
}

void mouse_callback(GLFWwindow* window, double xPos, double yPos)
{
    // if (glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS)
    // {
        if (firstMouse)
        {
            lastX = xPos;
            lastY = yPos;
            firstMouse = false;
        }

        float xOffset = (lastX - xPos);
        float yOffset = (yPos - lastY); // y-axis is reversed
        lastX = xPos;
        lastY = yPos;

        yaw -= xOffset * sensitivity;
        pitch -= yOffset * sensitivity;

        if (pitch > 89.0f) pitch = 89.0f;
        if (pitch < -89.0f) pitch = -89.0f;

        glm::vec3 direction;
        direction.x = cos(glm::radians(yaw)) * cos(glm::radians(pitch));
        direction.y = sin(glm::radians(pitch));
        direction.z = sin(glm::radians(yaw)) * cos(glm::radians(pitch));
        cameraFront = glm::normalize(direction);
    // }
}

void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
{
    zoom -= 2.0f * (float) yoffset;
    if (zoom < 1.0f) zoom = 1.0f;
    if (zoom > 45.0f) zoom = 45.0f;
}


void processInput(GLFWwindow* window)
{
    if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
        glfwSetWindowShouldClose(window, true);

    const float cameraSpeed = 5.0f * deltaTime;
    if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS) cameraPos += cameraSpeed * cameraFront;
    if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS) cameraPos -= cameraSpeed * cameraFront;
    if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS) cameraPos += cameraSpeed * glm::normalize(glm::cross(cameraFront, cameraUp));
    if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS) cameraPos -= cameraSpeed * glm::normalize(glm::cross(cameraFront, cameraUp));
    if (glfwGetKey(window, GLFW_KEY_E) == GLFW_PRESS) cameraPos += cameraSpeed * cameraUp;
    if (glfwGetKey(window, GLFW_KEY_Q) == GLFW_PRESS) cameraPos -= cameraSpeed * cameraUp;

}

int main()
{
    // Initialize GLFW
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

    // Create a window
    GLFWwindow* window = glfwCreateWindow(800, 600, "GLFW Window", NULL, NULL);
    if (window == NULL)
    {
        std::cout << "Failed to create GLFW window\n";
        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);

    // Initialize GLAD
    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
    {
        std::cout << "Failed to initialize GLAD\n";
        return -1;
    }

    // Define viewport
    glViewport(0, 0, 800, 600);

    // Handle resizing
    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);

    // Capture the cursor
    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
    glfwSetCursorPosCallback(window, mouse_callback);
    glfwSetScrollCallback(window, scroll_callback);
.
.
.
    // Main loop
    while (!glfwWindowShouldClose(window))
    {
        // Input
        processInput(window);

        // Clear background
        glClearColor(0.80f, 0.80f, 0.80f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        // Objects:

        // Deploy shaders
        objectShaders.use();
        // objectShaders.setVec3("material.ambient", 0.05375f, 0.05f, 0.06625);
        // objectShaders.setVec3("material.diffuse", 0.18275, 0.17, 0.22525);
        objectShaders.setInt("material.diffuse", 0);
        objectShaders.setVec3("material.specular", 0.332741f/2.0f, 0.328634f/2.0f, 0.346435f/2.0f);
        objectShaders.setFloat("material.shininess", 128.0f*0.3f);
        objectShaders.setVec3("lightColor", 1.0f, 1.0f, 1.0f);
        objectShaders.setVec3("lightPos", lightPos);
        objectShaders.setVec3("light.ambient", 0.3f, 0.3f, 0.3f);
        objectShaders.setVec3("light.diffuse", 0.5f, 0.5f, 0.5f);
        objectShaders.setVec3("light.specular", 1.0f, 1.0f, 1.0f);
        glActiveTexture(GL_TEXTURE0);
        glBindTexture(GL_TEXTURE_2D, diffuseMap);


        // Define delta time
        float currentFrame = glfwGetTime();
        deltaTime = currentFrame - lastFrame;
        lastFrame = currentFrame;

        // Define camera and matrices
        glm::mat4 view = glm::lookAt(cameraPos, cameraPos + cameraFront, cameraUp);
        glm::mat4 projection = glm::mat4(1.0f);
        projection = glm::perspective(glm::radians(zoom), 800.0f / 600.0f, 0.1f, 100.0f);

        int projectionLoc = glGetUniformLocation(objectShaders.ID, "projection");
        glUniformMatrix4fv(projectionLoc, 1, GL_FALSE, glm::value_ptr(projection));
        int viewLoc = glGetUniformLocation(objectShaders.ID, "view");
        glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));

        glm::mat4 model = glm::mat4(1.0f);
        objectShaders.setMat4("model", model);
        objectShaders.setVec3("viewPos", cameraPos);

        // Render objects
        glBindVertexArray(VAO);
        glDrawArrays(GL_TRIANGLES, 0, 36);

        // Lighting:

        lightShaders.use();
        projectionLoc = glGetUniformLocation(lightShaders.ID, "projection");
        glUniformMatrix4fv(projectionLoc, 1, GL_FALSE, glm::value_ptr(projection));
        viewLoc = glGetUniformLocation(lightShaders.ID, "view");
        glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));

        model = glm::mat4(1.0f);
        model = glm::translate(model, lightPos);
        model = glm::scale(model, glm::vec3(0.1f));
        lightShaders.setMat4("model", model);

        glBindVertexArray(lightVAO);
        glDrawArrays(GL_TRIANGLES, 0, 36);

        // Check and call events and swap the buffers
        glfwPollEvents();
        glfwSwapBuffers(window);
    }

    // Terminate GLFW
    glfwTerminate();
    return 0;
}
"""

There is a problem with my camera controls via the mouse. Looking around _kind of_ works, but there is something wrong. It currently works like this: any time movement is detected right of the center of the screen, the camera turns right, even if the mouse is moving left. It's similar for all directions. It's supposed to work like any FPS camera, where moving in a direction turns the camera in that direction irrespective of the mouse position. What's wrong?