Update of /cvsroot/super-tux/supertux/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6317/src
Modified Files:
player.cpp
Log Message:
This patch was send to the mailing list by Ryan (aka sik0fewl).
«
I've made it so that sliding on ice works again (after the changes to the
input handling functions--looks much nicer now, btw).
I also changed supertux.stgt to make snow5.png ice. You can try out sliding
around on ice in the second level. I wasn't really sure what would be a good
sliding rate so people should try fiddling with different values.
Right now the accel/decel rate is the direct inverse of the velocity.. this
inverse can be increased or decreased.
Also, the smalltux animation doesn't "slide", he walks to a stop.. haven't
really looked into where to fix this, but I'm sure others could find it and
fix it before I could.
»
Index: player.cpp
===================================================================
RCS file: /cvsroot/super-tux/supertux/src/player.cpp,v
retrieving revision 1.36
retrieving revision 1.37
diff -u -d -r1.36 -r1.37
--- player.cpp 13 Apr 2004 18:17:26 -0000 1.36
+++ player.cpp 16 Apr 2004 16:24:54 -0000 1.37
@@ -379,7 +379,20 @@
ax = WALK_ACCELERATION_X * -1.5;
}
}
-
+
+ // if we're on ice slow down acceleration or deceleration
+ if (isice(base.x, base.y + base.height))
+ {
+ /* the acceleration/deceleration rate on ice is inversely proportional to
+ * the current velocity.
+ */
+
+ // increasing 1 will increase acceleration/deceleration rate
+ // decreasing 1 will decrease acceleration/deceleration rate
+ // must stay above zero, though
+ if (ax != 0) ax *= 1 / fabs(vx);
+ }
+
physic.set_velocity(vx, vy);
physic.set_acceleration(ax, ay);
}
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