Refactor config file API.

The config file API previously relied on binding config variables
using M_BindVariable() which took a void pointer. It occurred to me
that if used on a boolean variable, this would be erroneous, but the
void pointer would make it impossible to tell. Split this into
separate M_Bind{Foo}Variable() functions based on type, which allows
for proper type checking on the pointers that are passed.

Vaguely related to #509.

1 files changed, 10 insertions, 9 deletions

diff --git a/src/setup/mode.c b/src/setup/mode.c
index d0e1f201..ed637849 100644
--- a/src/setup/mode.c
+++ b/src/setup/mode.c
@@ -115,14 +115,14 @@ static void BindMiscVariables(void)
 {
     if (gamemission == doom)
     {
-        M_BindVariable("detaillevel",       &detailLevel);
-        M_BindVariable("show_messages",     &showMessages);
+        M_BindIntVariable("detaillevel",   &detailLevel);
+        M_BindIntVariable("show_messages", &showMessages);
     }
 
     if (gamemission == hexen)
     {
-        M_BindVariable("savedir",           &savedir);
-        M_BindVariable("messageson",        &showMessages);
+        M_BindStringVariable("savedir", &savedir);
+        M_BindIntVariable("messageson", &showMessages);
 
         // Hexen has a variable to control the savegame directory
         // that is used.
@@ -140,14 +140,15 @@ static void BindMiscVariables(void)
 
     if (gamemission == strife)
     {
-        M_BindVariable("back_flat",         &back_flat);
-        M_BindVariable("screensize"  ,      &screenblocks);
-        M_BindVariable("comport",           &comport);
-        M_BindVariable("nickname",          &nickname);
+        M_BindStringVariable("back_flat",   &back_flat);
+        M_BindStringVariable("nickname",    &nickname);
+
+        M_BindIntVariable("screensize",     &screenblocks);
+        M_BindIntVariable("comport",        &comport);
     }
     else
     {
-        M_BindVariable("screenblocks",      &screenblocks);
+        M_BindIntVariable("screenblocks",   &screenblocks);
     }
 
 }