Diff: Paddle/Paddle.cpp

Revision:

0:92b180c8d407

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Paddle/Paddle.cpp	Tue Jan 05 01:14:11 2021 +0000
@@ -0,0 +1,125 @@
+#include "Paddle.h"
+
+FXOS8700CQ accelerometer(I2C_SDA,I2C_SCL);
+    
+Paddle::Paddle()
+{
+
+}
+
+Paddle::~Paddle()
+{
+
+}
+
+void Paddle::init(int y,int height,int width)
+{
+    _x = WIDTH/2 - width/2;  // initialised in the centre of the screen
+    _y = y;  // fixed at the bottom of the screen, initialised by _paddley in engine
+    _height = height; // paddle height, defined at init
+    _width = width; // paddle width, defined at init
+    _sens = 0.5; // default sensitivity of tilt/joystick
+    _speed = 4;  // default speed = _speed * _sens
+    _lives = 6;  // number of lives = number of LEDs
+    _tilt = false;  //used to choose between motion methods
+
+}
+
+
+void Paddle::draw(N5110 &lcd)
+{
+    lcd.drawRect(_x,_y,_width,_height,FILL_BLACK);   // draw paddle at specified coordinates
+}
+
+
+void Paddle::update(Direction d,float mag)   // update the paddle's properties
+{
+    if (_tilt == false) {
+        _speed = int(mag*10.0f);  // scale is arbitrary
+
+        // update x value depending on direction of movement
+        // West is decrement as origin is at the top-left so decreasing moves left
+        if (d == W) {
+            _x-=_speed * _sens;   // adjust the x coordinate accordingly. Sensitivity scales the speed of the paddle
+        } else if (d == E) {
+            _x+=_speed * _sens;
+        }
+
+        // censure that the paddle doesn't go off screen
+        if (_x < 1) {
+            _x = 1;
+        }
+        if (_x > WIDTH - _width - 1) {
+            _x = WIDTH - _width - 1;
+        }
+    } else if (_tilt == true) {
+        accelerometer.init();     // initialise the accelerometer
+        Data values = accelerometer.get_values();     // retrieve a struct of values
+        float roll_rad = atan2(values.ay,values.az);  // use values to calculate the roll angle in radians
+        _speed = int((roll_rad*(360/3.14159265))*0.3f);  // convert to degrees and scale
+        _x -= _speed * _sens;  // adjust the x coordinate accordingly
+    }
+
+    // ensure that the paddle doesn't go off screen
+    if (_x < 1) {
+        _x = 1;
+    }
+    if (_x > WIDTH - _width - 1) {
+        _x = WIDTH - _width - 1;
+    }
+}
+
+
+int Paddle::get_lives()  // returns the integer _lives
+{
+    return _lives;
+}
+
+
+void Paddle::lose_life()  // decrements the member variable _lives
+{
+    _lives--;
+}
+
+
+void Paddle::inc_life()  // increment the member variable _lives
+{
+    _lives++;
+}
+
+
+void Paddle::reset_lives()
+{
+    _lives = 6;
+}
+
+
+Vector2D Paddle::get_pos()  // returns the vector of the paddle's current position
+{
+    Vector2D p = {_x,_y};
+    return p;
+}
+
+
+void Paddle::set_tilt()    // sets the paddle motion option to tilt i.e. the member variable _tilt = true
+{
+    _tilt = true;
+}
+
+
+void Paddle::set_joy()     // sets the paddle motion option to joystick
+{
+    _tilt = false;
+}
+
+
+void Paddle::recentre()    // moves the paddle back to the centre of the screen (used after victory screen to restart)
+{
+    _x = WIDTH/2 - PADDLE_WIDTH/2;  // centre of the screen
+}
+
+
+void Paddle::set_sens(float sens)  // sets the member variable _sens to an input
+{
+    _sens = sens;
+}