Diff: bouncing_ball.cpp

Revision:

1:0aa572c0f2b1

Parent:

0:aff81f4c72f3

Child:

2:ba1844b0eb9f

--- a/bouncing_ball.cpp	Thu Oct 19 14:07:25 2017 +0000
+++ b/bouncing_ball.cpp	Tue Oct 24 12:33:39 2017 +0000
@@ -0,0 +1,56 @@
+#include "mbed.h"
+#include "bouncing_ball.h"
+
+physics_ball::physics_ball(int color_in, int radius_in)
+{
+    speedx = DEFAULT_SPEEDX;
+    speedy = DEFAULT_SPEEDY;
+    posx = DEFAULT_POSX;
+    posy = DEFAULT_POSY;
+    color = color_in;
+    radius = radius_in;
+}
+
+physics_ball::~physics_ball()
+{
+}
+
+void physics_ball::define_space(int width, int height)
+{
+    space_width = width;
+    space_height = height;
+}
+
+void physics_ball::set_param(int radius_in, int color_in)
+{
+    radius = radius_in;
+    color = color_in;
+}
+
+void physics_ball::set_state(int x, int y, float vx, float vy)
+{
+    posx = x;
+    posy = y;
+    speedx = vx;
+    speedy = vy;
+}
+
+void physics_ball::update(float time_step, MMA8452Q accelerometer)
+{
+
+    // Move circle. IMPORTANT! Notice how we adjust for sensor orientation!
+    posx -= (speedx * accelerometer.readY());
+    posy -= (speedy * accelerometer.readX());
+
+    // Make circle sit on edges
+    if ( posx <= radius + 1 ) {
+        posx = radius + 1;
+    } else if ( posx >= space_width - radius ) {
+        posx = space_width - radius;
+    }
+    if ( posy <= radius + 1 ) {
+        posy = radius + 1;
+    } else if ( posy >= space_height - radius ) {
+        posy = space_height - radius;
+    }
+}
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