Merge branch 'support-code' of github.umn.edu:umn-csci-4611-f21/shared-upstream

1 files changed, 134 insertions, 0 deletions

diff --git a/dev/a2-carsoccer/car_soccer.cc b/dev/a2-carsoccer/car_soccer.cc
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+/** CSci-4611 Assignment 2:  Car Soccer
+ */
+
+#include "car_soccer.h"
+#include "config.h"
+
+
+// Remember in C++, the .h file list all the functions and member variables that are part of the class!
+// Look there first to understand what is part of the CarSoccer class, then look below to see how each
+// function is implemented.
+
+
+CarSoccer::CarSoccer() : GraphicsApp(1024,768, "Car Soccer") {
+    // If you are having trouble driving the car with the keybaord, you can set this to true to use
+    // the mouse instead.  The mouse controls are based on the postion of the mouse cursor on the window.
+    // There is a "dead zone" in the middle of the window, and if you move the mouse up/down or left/right
+    // outside of that zone, it is like pushing the up/down and/or left/right keys on the keyboard
+    use_mouse_ = false;
+        
+    // Define a search path for finding data files (images and shaders)
+    searchPath_.push_back(".");
+    searchPath_.push_back("./data");
+    searchPath_.push_back(DATA_DIR_INSTALL);
+    searchPath_.push_back(DATA_DIR_BUILD);
+}
+
+CarSoccer::~CarSoccer() {
+}
+
+
+void CarSoccer::OnMouseMove(const Point2& pos, const Vector2& delta)
+{
+    mouse_pos_ = PixelsToNormalizedDeviceCoords(pos);
+}
+
+void CarSoccer::OnSpecialKeyDown(int key, int scancode, int modifiers) {
+    if (key == GLFW_KEY_SPACE) {
+        // Here's where you could call some form of launch_ball();
+        ball_.Reset();
+    }
+}
+
+/// This is a little utility function that is helpful.  It treats the arrow keys like a joystick or D-pad on a game controller
+/// and returns the direction you are pressing as a 2D vector, taking into account the fact that you might be holding
+/// down more than one key at a time.
+Vector2 CarSoccer::joystick_direction() {
+    Vector2 dir;
+
+    if (use_mouse_) {
+        // threshold defines the size of the "dead zone" in the middle of the screen
+        // if the mouse's x,y position falls outside of this, then it is like pushing
+        // the corresponding key on the keyboard
+        const float threshold = 0.2f;
+        dir[0] = 0;
+        if (mouse_pos_[0] < -threshold) {
+            dir[0] = -1;
+        }
+        else if (mouse_pos_[0] > threshold) {
+            dir[0] = 1;
+        }
+        dir[1] = 0;
+        if (mouse_pos_[1] < -threshold) {
+            dir[1] = -1;
+        }
+        else if (mouse_pos_[1] > threshold) {
+            dir[1] = 1;
+        }
+    }
+    else {
+        // the default user interface is to use the arrow keys on the keyboard.
+        // like a D-pad on a game controller, you can hold more than one key down at a time if you want.
+        if (IsKeyDown(GLFW_KEY_LEFT))
+            dir[0]--;
+        if (IsKeyDown(GLFW_KEY_RIGHT))
+            dir[0]++;
+        if (IsKeyDown(GLFW_KEY_UP))
+            dir[1]++;
+        if (IsKeyDown(GLFW_KEY_DOWN))
+            dir[1]--;
+    }
+
+    return dir;
+}
+
+// dt is for "Delta Time", the elapsed time in seconds since the last frame
+void CarSoccer::UpdateSimulation(double dt) {
+    Vector2 dpad_dir = joystick_direction();
+    std::cout << "D-Pad Direction: " << dpad_dir << std::endl;
+
+    // Here's where you shound do your "simulation", updating the positions of the
+    // car and ball based on the elapsed time and checking for collisions.  Filling
+    // in this routine is the main part of the assignment.
+
+    // Example: This is not the "correct way" to drive the car, but this code
+    // will at least move the car around for testing
+    float metersPerSec = 10.0f;
+    car_.set_position(car_.position() + metersPerSec * Vector3(dpad_dir[0], 0, -dpad_dir[1]) * dt);
+    
+}
+
+
+void CarSoccer::InitOpenGL() {
+    // Set up the camera in a good position to see the entire field
+    projMatrix_ = Matrix4::Perspective(60, aspect_ratio(), 1, 1000);
+    modelMatrix_ = Matrix4::LookAt(Point3(0,60,70), Point3(0,0,10), Vector3(0,1,0));
+ 
+    // Set a background color for the screen (don't worry if you get a depricated warning on this line in OSX)
+    glClearColor(0.8f, 0.8f, 0.8f, 1.0f);
+    
+    // Load some image files we'll use
+    fieldTex_.InitFromFile(Platform::FindFile("pitch.png", searchPath_));
+    crowdTex_.InitFromFile(Platform::FindFile("crowd.png", searchPath_));
+}
+
+
+void CarSoccer::DrawUsingOpenGL() {
+    // Draw the crowd as a fullscreen background image
+    quickShapes_.DrawFullscreenTexture(Color(1,1,1), crowdTex_);
+
+    // Draw the car and the ball
+    car_.Draw(quickShapes_, modelMatrix_, viewMatrix_, projMatrix_);
+    ball_.Draw(quickShapes_, modelMatrix_, viewMatrix_, projMatrix_);
+    
+    // Draw the field with the field texture on it.
+    Color col(16.0f/255.0f, 46.0f/255.0f, 9.0f/255.0f);
+    Matrix4 M = Matrix4::Translation(Vector3(0.0f, -0.201f, 0.0f)) * Matrix4::Scale(Vector3(50.0f, 1.0f, 60.0f));
+    quickShapes_.DrawSquare(modelMatrix_ * M, viewMatrix_, projMatrix_, col);
+    M = Matrix4::Translation(Vector3(0.0f, -0.2f, 0.0f)) * Matrix4::Scale(Vector3(40.0f, 1.0f, 50.0f));
+    quickShapes_.DrawSquare(modelMatrix_ * M, viewMatrix_, projMatrix_, Color(1,1,1), fieldTex_);
+    
+    // You should add drawing the goals and the boundary of the playing area
+    // using quickShapes_.DrawLines()
+    
+}