From 9b83919815f6a6ce5d73da1c28483970d0ca5589 Mon Sep 17 00:00:00 2001
From: unknown <paulx161@umn.edu>
Date: Wed, 3 Feb 2021 14:22:28 -0600
Subject: added dev/MinGfx/

---
 dev/MinGfx/src/craft_cam.cc | 127 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 dev/MinGfx/src/craft_cam.cc

(limited to 'dev/MinGfx/src/craft_cam.cc')

diff --git a/dev/MinGfx/src/craft_cam.cc b/dev/MinGfx/src/craft_cam.cc
new file mode 100644
index 0000000..425f524
--- /dev/null
+++ b/dev/MinGfx/src/craft_cam.cc
@@ -0,0 +1,127 @@
+/*
+ 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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