InverseKinematics/Camera.cpp at master · FrankGoyens/InverseKinematics · GitHub

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#include "Camera.h"
#include "glm/gtc/matrix_transform.hpp"
#include <iostream>
#include <math.h>

Camera::Camera(GLFWwindow* window)
    : eye_x(0.0f), eye_y(0.0f), eye_z(0.8f), angle_y(0.0f), cameraSpeed(0.003f), window(window) {}

glm::mat4 Camera::update(float deltaTime, glm::mat4 pMatrix) {
    float deltaSpeed = cameraSpeed * deltaTime;

    if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS) {
        // angle_y += 0.3f * deltaSpeed;
    }

    if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS) {
        // angle_y -= 0.3f * deltaSpeed;
    }

    float lookPosX = sin(angle_y), lookPosZ = -cos(angle_y);

    // if(glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
    //{
    //	eye_x += lookPosX * deltaSpeed;
    //	eye_z += lookPosZ * deltaSpeed;
    //}
    //
    // if(glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
    //{
    //	eye_x -= lookPosX * deltaSpeed;
    //	eye_z -= lookPosZ * deltaSpeed;
    //}
    //
    // if(glfwGetKey(window, GLFW_KEY_UP) == GLFW_PRESS)
    //{
    //	eye_y += 0.3f * deltaSpeed;
    //}
    //
    // if(glfwGetKey(window, GLFW_KEY_DOWN) == GLFW_PRESS)
    //{
    //	eye_y -= 0.3f * deltaSpeed;
    //}

    glm::mat4 vMatrix = glm::lookAt(glm::vec3(eye_x, eye_y, eye_z),
                                    glm::vec3(eye_x + lookPosX, eye_y, eye_z + lookPosZ), glm::vec3(0.0f, 1.0f, 0.0f));

    // 	gluLookAt(eye_x, eye_y, eye_z,
    // 			  eye_x + lookPosX, eye_y, eye_z+lookPosZ,
    // 		   0.0f, 1.0f, 0.0f);

    return pMatrix * vMatrix;
}