fixed initially displaying custom mouse cursor in upper left corner

[rocksndiamonds.git] / src / anim.c

diff --git a/src/anim.c b/src/anim.c
index e603a9d38a0e3760e616a83f623db24c2aac39d1..363c76fc7197d4c74e17f7dcf74210f38fe2e7eb 100644 (file)
--- a/src/anim.c
+++ b/src/anim.c
@@ -880,6 +880,11 @@ static boolean SetGlobalAnimPart_Viewport(struct GlobalAnimPartControlInfo *part
     int mx = MIN(MAX(0, gfx.mouse_x), WIN_XSIZE - 1);
     int my = MIN(MAX(0, gfx.mouse_y), WIN_YSIZE - 1);
 
+    // prevent displaying off-screen custom mouse cursor in upper left corner
+    if (gfx.mouse_x == POS_OFFSCREEN &&
+       gfx.mouse_y == POS_OFFSCREEN)
+      mx = my = POS_OFFSCREEN;
+
     viewport_x = mx - part->control_info.x;
     viewport_y = my - part->control_info.y;
     viewport_width  = part->graphic_info.width;