[gcompris] mining: add fast-forward option for tutorial

[Bruno Coudoin <bcoudoin src gnome org>]

commit 35507350046262ad39863d761354b099eb9be5b9
Author: Peter Albrecht <pa-dev gmx de>
Date:   Mon Sep 24 22:33:59 2012 +0200

    mining: add fast-forward option for tutorial
    
    If the user does not follow the tutorial exactly, and has already zoomed
    in at max, when entering the "nugget approach area", we don't have to
    show him, how to zoom in any more.

 src/mining-activity/mining.py |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/mining-activity/mining.py b/src/mining-activity/mining.py
index c5a9cf9..f868a35 100644
--- a/src/mining-activity/mining.py
+++ b/src/mining-activity/mining.py
@@ -313,7 +313,14 @@ class Gcompris_mining:
     #          a^2         +         b^2         <=                         c^2
     if (x - nx) * (x - nx) + (y - ny) * (y - ny) <= self.min_nugget_approach * self.min_nugget_approach:
       # the mouse cursor is close enough, go to next tutorial step
-      self.tutorial.set_tutorial_state('zoom in', False)
+
+      if self.nugget.is_visible():
+        # the nugget is already visible, so we can fast-forward to the "zoom in" tutorial
+        self.tutorial.set_tutorial_state('zoom in', False)
+        self.tutorial.set_tutorial_state('click', False)
+      else:
+        # go the default way: "move to", "zoom in", "click", ...
+        self.tutorial.set_tutorial_state('zoom in', False)
 
     else:
       # if we still want to show the user, where to move the mouse pointer to, we need to