changed atkinf elements to signed char.

src/wl_agent.c

@@ -43,8 +43,8 @@ objtype		*LastAttacker;
 
 struct atkinf
 {
-	char tics, attack, frame; 	// attack is 1 for gun, 2 for knife
-} static attackinfo[4][14] =
+	signed char tics, attack, frame; 	// attack is 1 for gun, 2 for knife
+} static const attackinfo[4][14] =
 {
 { {6,0,1},{6,2,2},{6,0,3},{6,-1,4} },
 { {6,0,1},{6,1,2},{6,0,3},{6,-1,4} },
@@ -1205,7 +1205,7 @@ void VictorySpin()
 
 void T_Attack(objtype *ob)
 {
-	struct atkinf *cur;
+	const struct atkinf *cur;
 
 	UpdateFace();