Eliminate enum: use const instead, with case-by-case parallel const implementations

macros/scripts/gfx_anims.asm

@@ -12,41 +12,41 @@ endc
 	db x
 ENDM
 
-	enum_start $fc
+	const_def $fc
 
-	enum delanim_command ; $fc
+	const delanim_command ; $fc
 delanim: MACRO
 ; Removes the object from the screen, as opposed to `endanim` which just stops all motion
 	db delanim_command
 ENDM
 
-	enum dowait_command ; $fd
+	const dowait_command ; $fd
 dowait: MACRO
 	db dowait_command
 	db \1 ; frames
 ENDM
 
-	enum dorestart_command ; $fe
+	const dorestart_command ; $fe
 dorestart: MACRO
 	db dorestart_command
 ENDM
 
-	enum endanim_command ; $ff
+	const endanim_command ; $ff
 endanim: MACRO
 	db endanim_command
 ENDM
 
 
 ; Used for pic animations
-__enum__ = $fd
+const_value = $fd
 
-	enum dorepeat_command ; $fd
+	const dorepeat_command ; $fd
 dorepeat: MACRO
 	db dorepeat_command
 	db \1 ; command offset to jump to
 ENDM
 
-	enum setrepeat_command ; $fe
+	const setrepeat_command ; $fe
 setrepeat: MACRO
 	db setrepeat_command
 	db \1 ; amount of times to repeat