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/*
Copyright (c) 2017,2018 Regents of the University of Minnesota.
All Rights Reserved.
See corresponding header file for details.
*/
#include "craft_cam.h"
namespace mingfx {
CraftCam::CraftCam() : t_scale_(1.0), r_scale_(1.0), l_scale_(1.0), yaw_(0.0), pitch_(0.0) {
}
CraftCam::CraftCam(const Matrix4 &initialViewMatrix) :
t_scale_(1.0), r_scale_(1.0), l_scale_(1.0), yaw_(0.0), pitch_(0.0)
{
}
CraftCam::~CraftCam()
{
}
void CraftCam::UpdateSimulation(double dt, GLFWwindow *window_ptr) {
if ((glfwGetKey(window_ptr, GLFW_KEY_UP) == GLFW_PRESS) ||
(glfwGetKey(window_ptr, GLFW_KEY_W) == GLFW_PRESS)) {
WalkForward(dt);
}
if ((glfwGetKey(window_ptr, GLFW_KEY_DOWN) == GLFW_PRESS) ||
(glfwGetKey(window_ptr, GLFW_KEY_Z) == GLFW_PRESS)) {
WalkBackward(dt);
}
if ((glfwGetKey(window_ptr, GLFW_KEY_LEFT) == GLFW_PRESS) ||
(glfwGetKey(window_ptr, GLFW_KEY_A) == GLFW_PRESS)) {
RotateLeft(dt);
}
if ((glfwGetKey(window_ptr, GLFW_KEY_RIGHT) == GLFW_PRESS) ||
(glfwGetKey(window_ptr, GLFW_KEY_S) == GLFW_PRESS)) {
RotateRight(dt);
}
}
void CraftCam::OnMouseMove(const Vector2 &normalized_mouse_delta) {
LookWithMouse(normalized_mouse_delta);
}
void CraftCam::WalkForward(double dt) {
base_head_ = Matrix4::Translation(3.0f * (float)dt * t_scale_ * Vector3(0,0,1)) * base_head_;
}
void CraftCam::WalkBackward(double dt) {
base_head_ = Matrix4::Translation(3.0f * (float)dt * t_scale_ * Vector3(0,0,-1)) * base_head_;
}
void CraftCam::RotateLeft(double dt) {
base_head_ = Matrix4::RotationY(-0.75f * (float)dt * r_scale_) * base_head_;
}
void CraftCam::RotateRight(double dt) {
base_head_ = Matrix4::RotationY(0.75f * (float)dt * r_scale_) * base_head_;
}
void CraftCam::LookWithMouse(const Vector2 &mouse_delta) {
yaw_ += l_scale_ * mouse_delta[0];
pitch_ += l_scale_ * mouse_delta[1];
added_rot_ = Matrix4::RotationX(-pitch_) * Matrix4::RotationY(yaw_);
}
Matrix4 CraftCam::view_matrix() {
return added_rot_ * base_head_;
}
void CraftCam::set_view_matrix(Matrix4 view_matrix) {
base_head_ = view_matrix;
added_rot_ = Matrix4();
}
Point3 CraftCam::eye() {
Matrix4 camMat = view_matrix().Inverse();
return camMat.ColumnToPoint3(3);
}
Vector3 CraftCam::look() {
Matrix4 camMat = view_matrix().Inverse();
return -camMat.ColumnToVector3(2);
}
void CraftCam::set_translation_scale(float s) {
t_scale_ = s;
}
void CraftCam::set_rotation_scale(float s) {
r_scale_ = s;
}
void CraftCam::set_look_scale(float s) {
l_scale_ = s;
}
float CraftCam::translation_scale() {
return t_scale_;
}
float CraftCam::rotation_scale() {
return r_scale_;
}
float CraftCam::look_scale() {
return l_scale_;
}
void CraftCam::UpdateHeight(float new_y_value) {
Vector3 offset = Vector3(0, new_y_value - eye()[1], 0);
base_head_ = Matrix4::Translation(-offset) * base_head_;
}
} // end namespace
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