1 files changed, 16 insertions, 0 deletions
diff --git a/sources/TZR_ScreenTransform.c b/sources/TZR_ScreenTransform.c
new file mode 100644
index 0000000..d936781
--- /dev/null
+++ b/sources/TZR_ScreenTransform.c
@@ -0,0 +1,16 @@
+#include "TZR_globals.h"
+
+void
+TZR_ScreenTransform(int *x, int *y)
+{
+	if (___tzr_scale == 0.0)
+		return;
+	if (x != NULL) {
+		*x -= ___tzr_off_x;
+		*x /= ___tzr_scale;
+	}
+	if (y != NULL) {
+		*y -= ___tzr_off_y;
+		*y /= ___tzr_scale;
+	}
+}