1 files changed, 35 insertions, 0 deletions
diff --git a/include/velocity.h b/include/velocity.h
new file mode 100644
index 0000000..278226c
--- /dev/null
+++ b/include/velocity.h
@@ -0,0 +1,35 @@
+#include "types.h"
+#include "fixed.h"
+#include "point.h"
+
+#ifndef VELOCITY_H
+#define VELOCITY_H
+
+typedef struct VELOCITY {
+	FIXED dx;
+	FIXED dy;
+} ALIGN(4) VELOCITY;
+
+static inline VELOCITY createVelocity (FIXED dx, FIXED dy) {
+	// Create velocity from data
+	VELOCITY temp;
+	temp.dx = dx;
+	temp.dy = dy;
+	return temp;
+}
+
+static inline VELOCITY addVelocities (VELOCITY *a, VELOCITY *b) {
+	// Add two velocities
+	VELOCITY temp;
+	temp.dx = a->dx + b->dx;
+	temp.dy = a->dy + b->dy;
+	return temp;
+}
+
+static inline void updatePoint (POINT *pt, VELOCITY *vel) {
+	// Update a point with a velocity
+	pt->x += vel->dx;
+	pt->y += vel->dy;
+}
+
+#endif // VELOCITY_H