Adjust slow and haste durations

Attempt to keep the number of slowed/hasted turns a player gets
constant by doubling/halving the total amount of delay needed for the
effects to wear off.

Also adjust durations for berserk.

1 files changed, 2 insertions, 2 deletions

diff --git a/crawl-ref/source/player.h b/crawl-ref/source/player.h
index 9d7d09cc3a..9725ba39b5 100644
--- a/crawl-ref/source/player.h
+++ b/crawl-ref/source/player.h
@@ -750,10 +750,10 @@ bool miasma_player();
 bool napalm_player(int amount);
 void dec_napalm_player(int delay);
 
-bool slow_player(int amount);
+bool slow_player(int turns);
 void dec_slow_player(int delay);
 
-void haste_player(int amount);
+void haste_player(int turns);
 void dec_haste_player(int delay);
 
 bool disease_player(int amount);