fpscontrols.cpp

#include "fpscontrols.h"

FPSControls::FPSControls(GLFWwindow *window, Camera *camera):Controls(window, camera)
{
    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
}

void FPSControls::update(float deltaTime, Shader *shader)
{
    double xpos, ypos;
    glfwGetCursorPos(m_Window, &xpos, &ypos);


    glfwSetCursorPos(m_Window, width/2, height/2);




    m_Camera->horizontalAngle+= mouseSpeed * deltaTime * float( width/2 - xpos );
    m_Camera->verticalAngle  += mouseSpeed * deltaTime * float(height/2 - ypos );

    glm::vec3 direction(
        cos(m_Camera->verticalAngle) * sin(m_Camera->horizontalAngle),
        sin(m_Camera->verticalAngle),
        cos(m_Camera->verticalAngle) * cos(m_Camera->horizontalAngle)
    );

    // Right vector
    glm::vec3 right = glm::vec3(
        sin(m_Camera->horizontalAngle - 3.14f/2.0f),
        0,
        cos(m_Camera->horizontalAngle - 3.14f/2.0f)
    );

    // Up vector : perpendicular to both direction and right
    glm::vec3 up = glm::cross( right, direction );


    // Move forward
    if (glfwGetKey(m_Window, GLFW_KEY_UP ) == GLFW_PRESS){
        m_Camera->position += direction * deltaTime * speed;
    }
    // Move backward
    if (glfwGetKey(m_Window, GLFW_KEY_DOWN ) == GLFW_PRESS){
        m_Camera->position -= direction * deltaTime * speed;
    }
    // Strafe right
    if (glfwGetKey(m_Window, GLFW_KEY_RIGHT ) == GLFW_PRESS){
        m_Camera->position += right * deltaTime * speed;
    }
    // Strafe left
    if (glfwGetKey(m_Window, GLFW_KEY_LEFT ) == GLFW_PRESS){
        m_Camera->position -= right * deltaTime * speed;
    }
    // Move forward
    if (glfwGetKey(m_Window, GLFW_KEY_W ) == GLFW_PRESS){
        m_Camera->position += direction * deltaTime * speed;
    }
    // Move backward
    if (glfwGetKey(m_Window, GLFW_KEY_S ) == GLFW_PRESS){
        m_Camera->position -= direction * deltaTime * speed;
    }
    // Strafe right
    if (glfwGetKey(m_Window, GLFW_KEY_D ) == GLFW_PRESS){
        m_Camera->position += right * deltaTime * speed;
    }
    // Strafe left
    if (glfwGetKey(m_Window, GLFW_KEY_A ) == GLFW_PRESS){
        m_Camera->position -= right * deltaTime * speed;
    }
    // go up
    if (glfwGetKey(m_Window, GLFW_KEY_SPACE ) == GLFW_PRESS){
        m_Camera->position += up * deltaTime * speed;
    }
    // go down
    if (glfwGetKey(m_Window, GLFW_KEY_LEFT_SHIFT ) == GLFW_PRESS){
        m_Camera->position -= up * deltaTime * speed;
    }

    shader->setUniform3fv("ambiantLight", glm::vec3(0.1,0.1,0.1));

}