cleans up trainer battle scripts

* adds battle type macros
* adds `trainerbattle_normal` macro
* adds `trainerbattle_double` macro
* adds rematch macros
* adds no intro macro

include/battle_setup.h

@@ -1,23 +1,6 @@
 #ifndef GUARD_BATTLE_SETUP_H
 #define GUARD_BATTLE_SETUP_H
 
-enum
-{
-    TRAINER_BATTLE_NORMAL,
-    TRAINER_BATTLE_CONTINUE_SCRIPT_NO_MUSIC,
-    TRAINER_BATTLE_CONTINUE_SCRIPT,
-    TRAINER_BATTLE_NORMAL_NO_INTRO_TEXT,
-    TRAINER_BATTLE_DOUBLE,
-    TRAINER_BATTLE_REMATCH,
-    TRAINER_BATTLE_CONTINUE_SCRIPT_DOUBLE,
-    TRAINER_BATTLE_REMATCH_DOUBLE,
-    TRAINER_BATTLE_CONTINUE_SCRIPT_DOUBLE_NO_MUSIC,
-    TRAINER_BATTLE_9,
-    TRAINER_BATTLE_SET_TRAINER_A,
-    TRAINER_BATTLE_SET_TRAINER_B,
-    TRAINER_BATTLE_12,
-};
-
 #define REMATCHES_COUNT 5
 #define REMATCH_TABLE_ENTRIES 78
 #define REMATCH_WALLY_ENTRY 64

include/constants/battle_setup.h

@@ -0,0 +1,18 @@
+#ifndef GUARD_CONSTANTS_BATTLE_SETUP_H
+#define GUARD_CONSTANTS_BATTLE_SETUP_H
+
+#define TRAINER_BATTLE_NORMAL                           0
+#define TRAINER_BATTLE_CONTINUE_SCRIPT_NO_MUSIC         1
+#define TRAINER_BATTLE_CONTINUE_SCRIPT                  2
+#define TRAINER_BATTLE_NORMAL_NO_INTRO_TEXT             3
+#define TRAINER_BATTLE_DOUBLE                           4
+#define TRAINER_BATTLE_REMATCH                          5
+#define TRAINER_BATTLE_CONTINUE_SCRIPT_DOUBLE           6
+#define TRAINER_BATTLE_REMATCH_DOUBLE                   7
+#define TRAINER_BATTLE_CONTINUE_SCRIPT_DOUBLE_NO_MUSIC  8
+#define TRAINER_BATTLE_9                                9
+#define TRAINER_BATTLE_SET_TRAINER_A                    10
+#define TRAINER_BATTLE_SET_TRAINER_B                    11
+#define TRAINER_BATTLE_12                               12
+
+#endif // GUARD_CONSTANTS_BATTLE_SETUP_H