Diff: Snake/Snake.cpp

Revision:

2:c33ff63c0813

Parent:

1:bdafa20e71a0

--- a/Snake/Snake.cpp	Sat May 23 17:21:24 2020 +0000
+++ b/Snake/Snake.cpp	Sun May 24 20:12:08 2020 +0000
@@ -0,0 +1,56 @@
+#include "Snake.h"
+
+// nothing doing in the constructor and destructor
+Snake::Snake()
+{
+
+}
+
+Snake::~Snake()
+{
+
+}
+
+void Snake::init(int x,int height,int width,int speed)
+{
+    _x = x;  // x value on screen is fixed
+    _y = HEIGHT/2 - height/2;  // y depends on height of screen and height of snake
+    _height = height;
+    _width = width;
+    _speed = 1;  // default speed
+
+}
+
+void Snake::draw(N5110 &lcd)
+{
+    // draw paddle in screen buffer. 
+    lcd.drawRect(_x,_y,_width,_height,FILL_BLACK);
+}
+
+void Snake::update(Direction d,float mag)
+{
+    _speed = int(mag*4.0f);  // scale is arbitrary, could be changed in future
+
+    // update y value depending on direction of movement
+    // North is decrement as origin is at the top-left so decreasing moves up
+    if (d == N) {
+        _y-=_speed;
+    } else if (d == S) {
+        _y+=_speed;
+    }
+
+    // check the y origin to ensure that the paddle doesn't go off screen
+    if (_y < 1) {
+        _y = 1;
+    }
+    if (_y > HEIGHT - _height - 1) {
+        _y = HEIGHT - _height - 1;
+    }
+}
+
+
+
+Vector2D Snake::get_pos() {
+    Vector2D p = {_x,_y};
+    return p;    
+}
\ No newline at end of file