Added files

1 files changed, 36 insertions, 0 deletions

diff --git a/src/pt.h b/src/pt.h
new file mode 100644
index 0000000..b9f8841
--- /dev/null
+++ b/src/pt.h
@@ -0,0 +1,36 @@
+#include "defs.h"
+#include "fixed.h"
+
+#ifndef PT_H
+#define PT_H
+
+typedef struct POINT {
+    FIXED x;
+    FIXED y;
+} POINT;
+
+static inline void convertPointToScreen(POINT *point) {
+    // Convert point where (SCREEN_WIDTH / 2 * x,
+    //                  SCREEN_HEIGHT / 2 - y - 1)
+	// is the origin (0,0)
+    point->x += (WINDOW_WIDTH / 2) << FIX_SHIFT;
+    point->y = (WINDOW_HEIGHT / 2 - (point->y >> FIX_SHIFT) - 1) << FIX_SHIFT;
+}
+
+static inline POINT createPoint(FIXED x, FIXED y) {
+    // Create a point from data
+    POINT temp;
+    temp.x = x;
+    temp.y = y;
+    return temp;
+}
+
+
+static inline void swapPoint(POINT *p1, POINT *p2) {
+    POINT temp;
+    temp = *p1;
+    *p1 = *p2;
+    *p2 = temp;
+}
+
+#endif // PT_H