comment more battle ui

constants.asm

@@ -222,6 +222,8 @@ PREDEF_FILLPP EQU $05
 PREDEF_ADDPARTYMON EQU $06
 PREDEF_FILLSTATS EQU $0C
 PREDEF_FILLMOVES EQU $1B
+PREDEF_DRAW_PLAYER_HP EQU $26
+PREDEF_DRAW_ENEMY_HP EQU $27
 PREDEF_GETUNOWNLETTER EQU $2D
 PREDEF_DECOMPRESS EQU $40
 
@@ -247,6 +249,20 @@ D_UP       EQU %01000000
 D_DOWN     EQU %10000000
 
 
+; screen
+HP_BAR_LENGTH EQU 6
+HP_BAR_LENGTH_PX EQU 48
+EXP_BAR_LENGTH EQU 8
+EXP_BAR_LENGTH_PX EQU 64
+
+SCREEN_WIDTH EQU 20
+SCREEN_HEIGHT EQU 18
+SCREEN_WIDTH_PX EQU 160
+SCREEN_HEIGHT_PX EQU 144
+
+TILE_WIDTH EQU 8
+
+
 ; movement
 STEP_SLOW EQU 0
 STEP_WALK EQU 1