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Start improving sprite movement engine (to do: identify bit flags)

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Introduce maskbits N[, S]: optionally shift the bitmask
This commit is contained in:
Rangi 2018-05-23 12:48:14 -04:00
parent 4e776d4fa6
commit 32b92ca51c
8 changed files with 150 additions and 135 deletions
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11
constants/map_object_constants.asm
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@ -75,6 +75,16 @@ OVERHEAD EQU 3
const MAPOBJECT_F ; unused
OBJECT_LENGTH EQU const_value
; SpriteMovementData struct members (see data/sprites/map_objects.asm)
const_def
const SPRITEMOVEATTR_MOVEMENT ; 0
const SPRITEMOVEATTR_FACING ; 1
const SPRITEMOVEATTR_ACTION ; 2
const SPRITEMOVEATTR_FLAGS1 ; 3
const SPRITEMOVEATTR_FLAGS2 ; 4
const SPRITEMOVEATTR_PALFLAGS ; 5
NUM_SPRITEMOVEDATA_FIELDS EQU const_value
MAPOBJECT_SCREEN_HEIGHT EQU 11
MAPOBJECT_SCREEN_WIDTH EQU 12
@ -119,7 +129,6 @@ MAPOBJECT_SCREEN_WIDTH EQU 12
const SPRITEMOVEDATA_GRASS ; 23
const SPRITEMOVEDATA_SWIM_WANDER ; 24
NUM_SPRITEMOVEDATA EQU const_value
SPRITEMOVEDATA_FIELDS EQU 6
; MapObjectMovementPattern.Pointers indexes (see engine/overworld/map_objects.asm)
const_def

228
data/sprites/map_objects.asm
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@ -5,304 +5,304 @@ SpriteMovementData:: ; 4273
db SPRITEMOVEFN_00 ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000010 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_STILL
db SPRITEMOVEFN_STANDING ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00001100 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 2 | 1 << 3 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_WANDER
db SPRITEMOVEFN_RANDOM_WALK_XY ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SPINRANDOM_SLOW
db SPRITEMOVEFN_SLOW_RANDOM_SPIN ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_WALK_UP_DOWN
db SPRITEMOVEFN_RANDOM_WALK_Y ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_WALK_LEFT_RIGHT
db SPRITEMOVEFN_RANDOM_WALK_X ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_STANDING_DOWN
db SPRITEMOVEFN_STANDING ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_STANDING_UP
db SPRITEMOVEFN_STANDING ; movement function
db UP ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_STANDING_LEFT
db SPRITEMOVEFN_STANDING ; movement function
db LEFT ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_STANDING_RIGHT
db SPRITEMOVEFN_STANDING ; movement function
db RIGHT ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SPINRANDOM_FAST
db SPRITEMOVEFN_FAST_RANDOM_SPIN ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_PLAYER
db SPRITEMOVEFN_OBEY_DPAD ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000010 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_0C
db SPRITEMOVEFN_08 ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_0D
db SPRITEMOVEFN_09 ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_0E
db SPRITEMOVEFN_0A ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_0F
db SPRITEMOVEFN_0B ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_10
db SPRITEMOVEFN_0C ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_11
db SPRITEMOVEFN_0D ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_12
db SPRITEMOVEFN_0E ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_FOLLOWING
db SPRITEMOVEFN_FOLLOW ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000010 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SCRIPTED
db SPRITEMOVEFN_SCRIPTED ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000010 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_BIGDOLLSYM
db SPRITEMOVEFN_BIG_SNORLAX ; movement function
db DOWN ; facing
db OBJECT_ACTION_BIG_DOLL_SYM ; action
db %00101110 ; flags1
db %00000001 ; flags2
db %11000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 5 ; flags1
db 1 << 0 ; flags2
db 1 << 6 | 1 << 7 ; palette flags
; SPRITEMOVEDATA_POKEMON
db SPRITEMOVEFN_BOUNCE ; movement function
db DOWN ; facing
db OBJECT_ACTION_BOUNCE ; action
db %00101110 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 5 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SUDOWOODO
db SPRITEMOVEFN_STANDING ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00001100 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 2 | 1 << 3 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SMASHABLE_ROCK
db SPRITEMOVEFN_STANDING ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00101110 ; flags1
db %00010000 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 5 ; flags1
db 1 << 4 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_STRENGTH_BOULDER
db SPRITEMOVEFN_STRENGTH ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00101110 ; flags1
db %00000000 ; flags2
db %01000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 5 ; flags1
db 0 ; flags2
db 1 << 6 ; palette flags
; SPRITEMOVEDATA_FOLLOWNOTEXACT
db SPRITEMOVEFN_FOLLOWNOTEXACT ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000010 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SHADOW
db SPRITEMOVEFN_SHADOW ; movement function
db DOWN ; facing
db OBJECT_ACTION_00 ; action
db %10001110 ; flags1
db %00000001 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 7 ; flags1
db 1 << 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_EMOTE
db SPRITEMOVEFN_EMOTE ; movement function
db DOWN ; facing
db OBJECT_ACTION_EMOTE ; action
db %10001110 ; flags1
db %00000010 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 7 ; flags1
db 1 << 1 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SCREENSHAKE
db SPRITEMOVEFN_SCREENSHAKE ; movement function
db DOWN ; facing
db OBJECT_ACTION_00 ; action
db %10000010 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 7 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SPINCOUNTERCLOCKWISE
db SPRITEMOVEFN_SPIN_COUNTERCLOCKWISE ; movement function
db LEFT ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SPINCLOCKWISE
db SPRITEMOVEFN_SPIN_CLOCKWISE ; movement function
db RIGHT ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_BIGDOLLASYM
db SPRITEMOVEFN_STRENGTH ; movement function
db DOWN ; facing
db OBJECT_ACTION_BIG_DOLL_ASYM ; action
db %00101110 ; flags1
db %00000001 ; flags2
db %11000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 5 ; flags1
db 1 << 0 ; flags2
db 1 << 6 | 1 << 7 ; palette flags
; SPRITEMOVEDATA_BIGDOLL
db SPRITEMOVEFN_STRENGTH ; movement function
db DOWN ; facing
db OBJECT_ACTION_BIG_DOLL ; action
db %00101110 ; flags1
db %00000001 ; flags2
db %11000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 5 ; flags1
db 1 << 0 ; flags2
db 1 << 6 | 1 << 7 ; palette flags
; SPRITEMOVEDATA_BOULDERDUST
db SPRITEMOVEFN_BOULDERDUST ; movement function
db DOWN ; facing
db OBJECT_ACTION_BOULDER_DUST ; action
db %10001110 ; flags1
db %00000001 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 7 ; flags1
db 1 << 0 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_GRASS
db SPRITEMOVEFN_GRASS ; movement function
db DOWN ; facing
db OBJECT_ACTION_GRASS_SHAKE ; action
db %10001110 ; flags1
db %00000010 ; flags2
db %00000000 ; palette flags
db 1 << 1 | 1 << 2 | 1 << 3 | 1 << 7 ; flags1
db 1 << 1 ; flags2
db 0 ; palette flags
; SPRITEMOVEDATA_SWIM_WANDER
db SPRITEMOVEFN_RANDOM_WALK_XY ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00100000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 1 << 5 ; palette flags
; 25
db SPRITEMOVEFN_00 ; movement function
db DOWN ; facing
db OBJECT_ACTION_STAND ; action
db %00000000 ; flags1
db %00000000 ; flags2
db %00000000 ; palette flags
db 0 ; flags1
db 0 ; flags2
db 0 ; palette flags
; 4357

2
engine/battle/effect_commands.asm
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@ -364,7 +364,7 @@ CantMove: ; 341f0
ld a, BATTLE_VARS_SUBSTATUS3
call GetBattleVarAddr
ld a, [hl]
and $ff ^ (1<<SUBSTATUS_BIDE + 1<<SUBSTATUS_RAMPAGE + 1<<SUBSTATUS_CHARGED)
and $ff ^ (1 << SUBSTATUS_BIDE | 1 << SUBSTATUS_RAMPAGE | 1 << SUBSTATUS_CHARGED)
ld [hl], a
call ResetFuryCutterCount

10
engine/pokemon/move_mon.asm
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@ -1497,29 +1497,29 @@ CalcMonStatC: ; e17b
jr z, .Special
cp STAT_SDEF
jr z, .Special
; DV_HP = (DV_ATK & 1) << 3 + (DV_DEF & 1) << 2 + (DV_SPD & 1) << 1 + (DV_SPC & 1)
; DV_HP = (DV_ATK & 1) << 3 | (DV_DEF & 1) << 2 | (DV_SPD & 1) << 1 | (DV_SPC & 1)
push bc
ld a, [hl]
swap a
and $1
and 1
add a
add a
add a
ld b, a
ld a, [hli]
and $1
and 1
add a
add a
add b
ld b, a
ld a, [hl]
swap a
and $1
and 1
add a
add b
ld b, a
ld a, [hl]
and $1
and 1
add b
pop bc
jr .GotDV

20
home/map_objects.asm
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@ -482,10 +482,10 @@ GetSpriteMovementFunction:: ; 1a2f
xor a
.ok
ld hl, SpriteMovementData
ld hl, SpriteMovementData + SPRITEMOVEATTR_MOVEMENT
ld e, a
ld d, 0
rept SPRITEMOVEDATA_FIELDS
rept NUM_SPRITEMOVEDATA_FIELDS
add hl, de
endr
ld a, [hl]
@ -497,15 +497,15 @@ GetInitialFacing:: ; 1a47
push de
ld e, a
ld d, 0
ld hl, SpriteMovementData + 1 ; init facing
rept SPRITEMOVEDATA_FIELDS
ld hl, SpriteMovementData + SPRITEMOVEATTR_FACING
rept NUM_SPRITEMOVEDATA_FIELDS
add hl, de
endr
ld a, BANK(SpriteMovementData)
call GetFarByte
add a
add a
and $c
maskbits NUM_DIRECTIONS, 2
pop de
pop bc
ret
@ -537,8 +537,8 @@ CopySpriteMovementData:: ; 1a61
push de
ld e, a
ld d, 0
ld hl, SpriteMovementData + 1 ; init facing
rept SPRITEMOVEDATA_FIELDS
ld hl, SpriteMovementData + SPRITEMOVEATTR_FACING
rept NUM_SPRITEMOVEDATA_FIELDS
add hl, de
endr
ld b, h
@ -549,7 +549,7 @@ endr
inc bc
rlca
rlca
and %00001100
maskbits NUM_DIRECTIONS, 2
ld hl, OBJECT_FACING
add hl, de
ld [hl], a
@ -654,7 +654,7 @@ SetSpriteDirection:: ; 1af8
and %11110011
ld e, a
pop af
and %00001100
maskbits NUM_DIRECTIONS, 2
or e
ld [hl], a
ret
@ -664,6 +664,6 @@ GetSpriteDirection:: ; 1b07
ld hl, OBJECT_FACING
add hl, bc
ld a, [hl]
and %00001100
maskbits NUM_DIRECTIONS, 2
ret
; 1b0f

8
macros/code.asm
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@ -36,8 +36,10 @@ jumptable: MACRO
ENDM
maskbits: MACRO
; masks just enough bits to cover the argument
; masks just enough bits to cover the first argument
; the second argument is an optional shift amount
; e.g. "maskbits 26" becomes "and %00011111" (since 26 - 1 = %00011001)
; and "maskbits 3, 2" becomes "and %00001100" (since "maskbits 3" becomes %00000011)
; example usage in rejection sampling:
; .loop
; call Random
@ -50,7 +52,11 @@ if x + 1 < (\1)
x = x << 1 | 1
endc
endr
if _NARG == 2
and x << (\2)
else
and x
endc
ENDM
calc_sine_wave: MACRO

2
mobile/mobile_40.asm
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@ -83,7 +83,7 @@ EnableMobile: ; 100082
call DoubleSpeed
xor a
ld [rIF], a
ld a, 1 << VBLANK + 1 << LCD_STAT + 1 << TIMER + 1 << SERIAL
ld a, 1 << VBLANK | 1 << LCD_STAT | 1 << TIMER | 1 << SERIAL
ld [rIE], a
xor a
ld [hMapAnims], a