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ReC98/th04/main/player/render.asm

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[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
; void pascal near player_render(void);
public PLAYER_RENDER
player_render proc near
@@angle = byte ptr -5
@@i = word ptr -4
@@screen_y = word ptr -2
@@patnum equ si
enter 6, 0
push si
push di
cmp _miss_time, 0
jz short @@alive
cmp _miss_time, MISS_ANIM_FRAMES
jbe @@in_miss_anim
@@alive:
[Maintenance] Add an underscore to the player_pos variable No need to declare them as `pascal` on the C side only because I messed up when naming them first. Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-15 19:54:33 +00:00
mov ax, _player_pos.cur.x
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
sar ax, 4
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
add ax, PLAYFIELD_LEFT - (PLAYER_W / 2)
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
mov di, ax
[Maintenance] Add an underscore to the player_pos variable No need to declare them as `pascal` on the C side only because I messed up when naming them first. Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-15 19:54:33 +00:00
mov ax, _player_pos.cur.y
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
add ax, ((PLAYFIELD_TOP - (PLAYER_H / 2)) shl 4)
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
call scroll_subpixel_y_to_vram_seg1 pascal, ax
mov [bp+@@screen_y], ax
[Maintenance] Add an underscore to the player_pos variable No need to declare them as `pascal` on the C side only because I messed up when naming them first. Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-15 19:54:33 +00:00
cmp _player_pos.velocity.x, 0
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
jge short @@moving_right?
mov @@patnum, 1
jmp short @@invincible?
@@moving_right?:
[Maintenance] Add an underscore to the player_pos variable No need to declare them as `pascal` on the C side only because I messed up when naming them first. Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-15 19:54:33 +00:00
cmp _player_pos.velocity.x, 0
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
jz short @@no_x_movement
mov @@patnum, 2
jmp short @@invincible?
@@no_x_movement:
xor @@patnum, @@patnum
; ---------------------------------------------------------------------------
@@invincible?:
cmp _player_invincibility_time, 0
jz short @@render_regular
[Reverse-engineering] [th03/th04/th05] Frame counters Of which there are quite a lot! Part of P0065, funded by Touhou Patch Center.
2019-12-30 20:38:58 +00:00
cmp _stage_frame_mod4, 0
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
jnz short @@render_regular
call super_roll_put_1plane pascal, di, [bp+@@screen_y], @@patnum, large PLANE_PUT or GC_BRGI
jmp short @@got_options?
@@render_regular:
call super_roll_put pascal, di, [bp+@@screen_y], @@patnum
@@got_options?:
[Maintenance] [th04/th05] Correctly declare player variables Part of P0077, funded by Splashman and -Tom-.
2020-02-22 12:49:32 +00:00
cmp _shot_level, 2
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
jb @@ret
[Maintenance] [th04/th05] Drop the `_seg1` suffix from the GRCG functions It's the `_seg3` variants that are the anomaly here. Part of P0192, funded by [Anonymous], nrook, and -Tom-.
2022-04-24 18:01:47 +00:00
call @grcg_setmode_rmw$qv
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
mov ax, _player_option_pos_cur.x
sar ax, 4
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
; Technically, DI = AX + PLAYFIELD_LEFT - PLAYER_OPTION_DISTANCE - (PLAYER_OPTION_W / 2)
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
mov di, ax
mov ax, _player_option_pos_cur.y
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
add ax, ((PLAYFIELD_TOP - (PLAYER_OPTION_H / 2)) shl 4)
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
call scroll_subpixel_y_to_vram_seg1 pascal, ax
mov [bp+@@screen_y], ax
mov ax, di
mov dx, [bp+@@screen_y]
[Maintenance] [th04/th05] Improve the z_super_roll_put*() naming convention So, master.lib has: • super_put_tiny() for tiny-format 16×n sprites • super_roll_put_tiny() for vertically wrapped tiny-format 16×16 sprites • super_put_tiny_small() for tiny-format 8×n sprites • yet *no* super_roll_put_tiny_small() function And now we have ZUN adding micro-optimized versions of: 1) vertically-wrapped tiny-format 16×16, clearly based on master.lib's super_roll_put_tiny(), RE'd in 35f9bd7 2) vertically-wrapped tiny-format 32×32 3) vertically-wrapped non-tiny monochrome 16×16 (TH05 only) Conclusion: Even though 1) does duplicate a master.lib function, trying to continue following master.lib's inconsistent naming convention only leads to more confusion here. master.lib also already designates the _8 suffix to mean "x will be byte-aligned, ⌊x/8⌋*8"… So let's: • spell out both coordinates of the sprite size directly in the function • keep the z_ prefix to encode ZUN's optimized calling convention (left/top coordinates in registers, ES already set to the beginning of a VRAM plane, GRCG already on) for all of these, not just 1). • and prefix the actual functions with _raw, since C land will want to handle the coordinate parameter registers in a macro. Part of P0073, funded by [Anonymous] and -Tom-.
2020-02-06 21:45:59 +00:00
call z_super_roll_put_tiny_16x16_raw pascal, _player_option_patnum
[Maintenance] [th04/th05] Separate constant for the player↔option distance Used in pretty much all shot type control functions. Part of P0036, funded by zorg.
2019-10-07 19:51:11 +00:00
lea ax, [di + PLAYER_OPTION_DISTANCE * 2]
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
mov dx, [bp+@@screen_y]
[Maintenance] [th04/th05] Improve the z_super_roll_put*() naming convention So, master.lib has: • super_put_tiny() for tiny-format 16×n sprites • super_roll_put_tiny() for vertically wrapped tiny-format 16×16 sprites • super_put_tiny_small() for tiny-format 8×n sprites • yet *no* super_roll_put_tiny_small() function And now we have ZUN adding micro-optimized versions of: 1) vertically-wrapped tiny-format 16×16, clearly based on master.lib's super_roll_put_tiny(), RE'd in 35f9bd7 2) vertically-wrapped tiny-format 32×32 3) vertically-wrapped non-tiny monochrome 16×16 (TH05 only) Conclusion: Even though 1) does duplicate a master.lib function, trying to continue following master.lib's inconsistent naming convention only leads to more confusion here. master.lib also already designates the _8 suffix to mean "x will be byte-aligned, ⌊x/8⌋*8"… So let's: • spell out both coordinates of the sprite size directly in the function • keep the z_ prefix to encode ZUN's optimized calling convention (left/top coordinates in registers, ES already set to the beginning of a VRAM plane, GRCG already on) for all of these, not just 1). • and prefix the actual functions with _raw, since C land will want to handle the coordinate parameter registers in a macro. Part of P0073, funded by [Anonymous] and -Tom-.
2020-02-06 21:45:59 +00:00
call z_super_roll_put_tiny_16x16_raw pascal, _player_option_patnum
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
GRCG_OFF_CLOBBERING dx
jmp @@ret
; ---------------------------------------------------------------------------
@@in_miss_anim:
cmp _miss_time, MISS_ANIM_FRAMES - MISS_ANIM_EXPLODE_UNTIL
jbe @@ret
mov si, _miss_explosion_radius
mov [bp+@@i], 0
mov al, _miss_explosion_angle
jmp short @@more?
@@loop:
cmp [bp+@@i], MISS_EXPLOSION_COUNT / 2
jnz short @@put
mov ax, si
cwd
sub ax, dx
sar ax, 1
mov si, ax
mov al, [bp+@@angle]
neg al
mov [bp+@@angle], al
@@put:
push offset _drawpoint
[Maintenance] Add an underscore to the player_pos variable No need to declare them as `pascal` on the C side only because I messed up when naming them first. Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-15 19:54:33 +00:00
push _player_pos.cur.x
push _player_pos.cur.y
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
push si
mov al, [bp+@@angle]
mov ah, 0
push ax
call vector2_at
MISS_EXPLOSION_CLIP @@next
mov ax, _drawpoint.x
sar ax, 4
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
add ax, PLAYFIELD_LEFT - (MISS_EXPLOSION_W / 2)
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
mov di, ax
mov ax, _drawpoint.y
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
add ax, ((PLAYFIELD_TOP - (MISS_EXPLOSION_H / 2)) shl 4)
[Reverse-engineering] [th04/th05] Player character display Including options and the death explosions. Part of P0035, funded by zorg.
2019-09-23 15:24:45 +00:00
call scroll_subpixel_y_to_vram_seg1 pascal, ax
mov [bp+@@screen_y], ax
call super_roll_put pascal, di, ax, 3
@@next:
inc [bp+@@i]
mov al, [bp+@@angle]
add al, 256 / (MISS_EXPLOSION_COUNT / 2)
@@more?:
mov [bp+@@angle], al
cmp [bp+@@i], MISS_EXPLOSION_COUNT
jl short @@loop
@@ret:
pop di
pop si
leave
retn
player_render endp