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--- public:t-gede-14-1:lab5 [2014/02/16 13:33] – [Bonus points] marino
+++ public:t-gede-14-1:lab5 [2024/04/29 13:33] (current) – external edit 127.0.0.1
@@ Line 13: / Line 13: @@
 ===== Preparation =====
-No special preparation is required - preparing the joypad is explained in the project steps below.
+No special preparation is required - preparing the joypad is explained in the project steps below. You do not have to use the latest lab as a base for this one, you can use the base of lab2 or any other **//except lab1//** if you feel like the project has become to bloated.
 **NOTE:** To get the joypads to start sending data, you may have to press a **Mode** button in the center of the device. This is true for the joypads handed out in the lab class!
 ===== Lab Project =====
@@ Line 22: / Line 24: @@
   - **Create a New Project** Create a new empty project called "Lab4" in the same way you have created new projectsfor other lab projects.
-  - <box green 100% | **2. half a Bonus pt :),** Lets reuse the blasted resources and plugins files. !>
+  - <box green 100% | **2. An early Bonus pt :),** Lets reuse the blasted resources and plugins files. !>
    - **Create a folder** somewhere in your filesystem to hold the ''resources_d.cfg, plugins_d.cfg and Models folder'' and copy the above mentioned files and folders to the folder you create.
    - **Change the following lines in your code:** dont forget to make the backslashes forward slashes, and repeating them for the sake of c++ strings escape characters.<code cpp>
@@ Line 121: / Line 123: @@
 ====== Bonus points ======
 <box green 100% | Bonus points>
-   - **Make the input a little less lame :)** Either make your own modifications to the input or follow the instructions from the instructor:
+   - **Make the input a little bit more useful :)** Either make your own modifications to the input or follow the instructions given:
      - **Remove the code** from frameStarted: <code cpp>
 Ogre::Vector3 SinbadTranslate(0, 0, 0);
@@ Line 151: / Line 153: @@
 _node->yaw(Ogre::Radian(_rotation));
 </code>
-    - **Now we will make the Sinbad move with the left analog stick** Add these two member variables to the ''MyFrameListener'' class, they will hold the values for the left analog axis. <code cpp>
+    - **Now we will make the Sinbad move with the left analog stick** Add these two member variables to the ''MyFrameListener'' class, they will hold the values for the left analog axis. And make sure to initialize them all to 0. <code cpp>
 int _walkMagnitude;
 int _turnMagnitude;
+float _orientation;
 </code>
-   - **Capture the state of the left axis** in the function
+    - **Capture the state of the left axis** in the function ''axisMoved'' by adding to the previously created switch statement. <code cpp>
+bool MyFrameListener::axisMoved(const OIS::JoyStickEvent &e, int axis) {
+	int value = e.state.mAxes[axis].abs;
+	switch (axis) {
+	case 1:
+		_camangle = Ogre::Math::TWO_PI * ((float(-1 * value) / float(_Joystick->MAX_AXIS) + 1.0f) / 2.0f) + Ogre::Math::HALF_PI;
+		break;
+        // Add these lines, dont forget to break :)
+	case 2:
+		_walkMagnitude = (float)value / -float(_Joystick->MAX_AXIS); // Map the range to -1 to 1
+		break;
+	case 3:
+		_turnMagnitude = (float)value / -float(_Joystick->MAX_AXIS); // Map the range to -1 to 1
+		break;
+	}
+	return true;
+}
+</code>
+    - **Now add the new input method for Sinbad** add this code in place for the code removed from section //a// <code cpp>
+bool walked = false;
+Ogre::Vector3 SinbadTranslate(0, 0, 0);
+// If the joystick is not available, use the keyboard as input.
+if (!_Joystick) {
+	if (_Keyboard->isKeyDown(OIS::KC_UP)) {
+		_walkMagnitude = 1;
+	}
+	else if (_Keyboard->isKeyDown(OIS::KC_DOWN)) {
+		_walkMagnitude = -1;
+	}
+	else {
+		_walkMagnitude = 0;
+	}
+	if (_Keyboard->isKeyDown(OIS::KC_LEFT)) {
+		_turnMagnitude = 1;
+	}
+	else if (_Keyboard->isKeyDown(OIS::KC_RIGHT)) {
+		_turnMagnitude = -1;
+	}
+	else {
+		_turnMagnitude = 0;
+	}
+}
+// Create the translation vector.
+SinbadTranslate = _node->getOrientation().zAxis() * evt.timeSinceLastFrame * _WalkingSpeed * _walkMagnitude;
+walked = true;
+// Increment the roation angle.
+_orientation += evt.timeSinceLastFrame * _turnMagnitude*2;
+// Now finally apply the rotation and translation.
+_node->translate(SinbadTranslate);
+_node->setOrientation(Ogre::Quaternion(Ogre::Radian(_orientation), Ogre::Vector3::UNIT_Y));
+</code>
+  - **As of now the camera follows Sinbad in a strange manner.** By adding buffered keyboard input, create a method of toggling the camera from following Sinbad behind his back, and a free roaming camera that you cam move with the mouse and "WASD" \\ **Hints:** \\ <code cpp>
+// This will make the camera a child of the Sinbad Scene node, and thus all transformation made to Sinbad will be applied to the Camera as well.
+_node->attachObject(_Cam);
+</code> Buffered keyboard input, Make the following changes to the MyFrameListener class to enable the buffered keyboard input <code cpp>
+// Add the inheritance of OIS::KeyListener, this will be required to make your FrameListener handle
+// the buffered input by providing you with the two virtual functions, keyPressed and keyReleased.
+class MyFrameListener : public Ogre::FrameListener, OIS::JoyStickListener, OIS::KeyListener {
+    //...
+    // Change the way the frameListener initializes the Keyboard object pointer in the constructor.
+    // And make "MyFrameListener" the event callback Handler for the keyboard.
+    MyFrameListener() : ... {
+        //...
+        // Notice the last parameter in the createInputObject() has changed from false to true!!
+        // That parameter indicates that we want to enable buffered keyboard input.
+        _Keyboard = static_cast<OIS::Keyboard*>(_InputManager->createInputObject(OIS::OISKeyboard, true));
+	_Keyboard->setEventCallback(this);
+        //...
+    }
+    // Now implement those two virtual functions.
+    virtual bool keyPressed(const OIS::KeyEvent &arg) {
+	return true;
+    }
+    virtual bool keyReleased(const OIS::KeyEvent &arg) {
+        return true;
+     }
+     //...
+}
+</code>Now you have those two functions that trigger only once per key press, and are not continuous like before, did I mention buffered input :)?
 </box>
@@ Line 164: / Line 250: @@
 ===== When You Are Finished =====
-Upload your **commented source files** into Lab4 in MySchool (zip them up if more than one). The lab projects will not be graded, but their completion counts towards your participation grade.
+Upload your **commented source files** into Lab5 in MySchool (zip them up if more than one). The lab projects will not be graded, but their completion counts towards your participation grade.