Diff: Ball/Ball.cpp

Revision:

0:90b7f20b3a8d

diff -r 000000000000 -r 90b7f20b3a8d Ball/Ball.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Ball/Ball.cpp	Tue Apr 28 01:39:30 2020 +0000
@@ -0,0 +1,72 @@
+#include "Ball.h"
+ 
+Ball::Ball()
+{
+ 
+}
+ 
+Ball::~Ball()
+{
+ 
+}
+ 
+void Ball::init(int size,int speed)
+{
+    _size = size;
+ 
+    _x = WIDTH/2 -  _size/2;
+    _y = HEIGHT/2 - _size/2;
+ 
+    srand(time(NULL));
+    int direction = rand() % 4; // randomise initial direction. 
+ 
+    // 4 possibilities. Get random modulo and set velocities accordingly
+    if (direction == 0) {
+        _velocity.x = speed;
+        _velocity.y = speed;
+    } else if (direction == 1) {
+        _velocity.x = speed;
+        _velocity.y = -speed;
+    } else if (direction == 2) {
+        _velocity.x = speed;
+        _velocity.y = speed;
+    } else {
+        _velocity.x = -speed;
+        _velocity.y = -speed;
+    }
+}
+ 
+void Ball::draw(N5110 &lcd)
+{
+    lcd.drawRect(_x,_y,_size,_size,FILL_BLACK);
+}
+ 
+void Ball::update()
+{
+    _x += _velocity.x;
+    _y += _velocity.y;
+}
+ 
+void Ball::set_velocity(Vector2D v)
+{
+    _velocity.x = v.x;
+    _velocity.y = v.y;
+}
+ 
+Vector2D Ball::get_velocity()
+{
+    Vector2D v = {_velocity.x,_velocity.y};
+    return v;
+}
+ 
+Vector2D Ball::get_pos()
+{
+    Vector2D p = {_x,_y};
+    return p;
+}
+ 
+void Ball::set_pos(Vector2D p)
+{
+    _x = p.x;
+    _y = p.y;
+}
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