lock mouse effect

1 files changed, 15 insertions, 1 deletions

diff --git a/lib/engine.cc b/lib/engine.cc
index 2d53beb..53be179 100644
--- a/lib/engine.cc
+++ b/lib/engine.cc
@@ -5,7 +5,7 @@
 bool mogltk::engine::inited = false, mogltk::engine::postsetuped = false;
 bool mogltk::engine::appactive = false, mogltk::engine::cursorvisible = false, mogltk::engine::quitrequest = false;
 int mogltk::engine::mx, mogltk::engine::my, mogltk::engine::mbuttons;
-int mogltk::engine::frames;
+int mogltk::engine::frames, mogltk::engine::locked = 0;
 double mogltk::engine::curfps = -1;
 Uint32 mogltk::engine::curticks;
 
@@ -160,6 +160,11 @@ void mogltk::engine::pollevents() {
 	    break;
 	case SDL_MOUSEMOTION:
 	    printm(M_INFO, "Mouse slept over the screen - (%i, %i)\n", event.motion.x, event.motion.y);
+	    if (locked) {
+		if (!((event.motion.x == mx) && (event.motion.y == my))) {
+		    SDL_WrapMouse(mx, my);
+		}
+	    }
 	    if (cursorvisible)
 		hastoreturn = true;
 	    break;
@@ -217,3 +222,12 @@ int mogltk::engine::mousebuttons() {
 double mogltk::engine::FPS() {
     return curfps;
 }
+
+void mogltk::engine::lockmouse() {
+    locked = 1;
+}
+
+void mogltk::engine::unlockmouse() {
+    locked = 0;
+}
+