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[Decompilation] [th05] Sara: Pattern 7/9 + 8/9 

The one where Sara alternates between firing a slow and a fast spiral
of blue ball ring groups that turns clockwise (7) or counter-clockwise
(8), with each new bullet accelerating by 0.25 pixels per frame.

Part of P0227, funded by nrook.
This commit is contained in:
nmlgc 2022-12-15 04:30:32 +01:00
parent 7aeb5dddd5
commit 271554aad9
2 changed files with 34 additions and 104 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
th05/main/boss/b1.cpp
View File

@ -234,3 +234,33 @@ void near pattern_random_red_rings(void)
snd_se_play(3); snd_se_play(3);
} }
} }
#define pattern_accelerating_rings(pattern_angle, angle_delta) { \
if((boss.phase_frame % 8) == 0) { \
bullet_template.spawn_type = BST_NORMAL; \
bullet_template.group = BG_RING; \
bullet_template.spread = 3; \
bullet_template.patnum = PAT_BULLET16_N_BALL_BLUE; \
bullet_template.angle = pattern_angle; \
bullet_template.speed = state->phase_3.ring_speed; \
if((boss.phase_frame % 16) == 0) { \
bullet_template.speed.v /= 2; \
} \
bullet_template_tune(); \
bullets_add_regular(); \
snd_se_play(3); \
\
pattern_angle += angle_delta; \
state->phase_3.ring_speed.v += to_sp(0.25f); \
} \
}
void near pattern_accelerating_spirals_clockwise(void)
{
pattern_accelerating_rings(state->phase_3.angle_clockwise, +0x06);
}
void near pattern_accelerating_spirals_counterclockwise(void)
{
pattern_accelerating_rings(state->phase_3.angle_counterclockwise, -0x06);
}

108
th05_main.asm
View File

@ -10262,112 +10262,12 @@ B1_UPDATE_TEXT segment byte public 'CODE' use16
@phase_3_with_pattern$qv procdesc near @phase_3_with_pattern$qv procdesc near
@pattern_pellet_arcs_at_expanding$qv procdesc near @pattern_pellet_arcs_at_expanding$qv procdesc near
@pattern_random_red_rings$qv procdesc near @pattern_random_red_rings$qv procdesc near
@pattern_accelerating_spirals_clo$qv procdesc near
@pattern_accelerating_spirals_cou$qv procdesc near
B1_UPDATE_TEXT ends B1_UPDATE_TEXT ends
B4_UPDATE_TEXT segment byte public 'CODE' use16 B4_UPDATE_TEXT segment byte public 'CODE' use16
; =============== S U B R O U T I N E =======================================
; Attributes: bp-based frame
sub_184BC proc near
push bp
mov bp, sp
mov ax, _boss_phase_frame
mov bx, 8
cwd
idiv bx
or dx, dx
jnz short loc_18524
mov _bullet_template.spawn_type, BST_NORMAL
mov _bullet_template.BT_group, BG_RING
mov _bullet_template.spread, 3
mov _bullet_template.patnum, PAT_BULLET16_N_BLUE
mov al, _boss_statebyte[15]
mov _bullet_template.BT_angle, al
mov al, _boss_statebyte[13]
mov _bullet_template.speed, al
mov ax, _boss_phase_frame
mov bx, 16
cwd
idiv bx
or dx, dx
jnz short loc_18506
mov al, _bullet_template.speed
mov ah, 0
cwd
sub ax, dx
sar ax, 1
mov _bullet_template.speed, al
loc_18506:
call _bullet_template_tune
call _bullets_add_regular
call snd_se_play pascal, 3
mov al, _boss_statebyte[15]
add al, 6
mov _boss_statebyte[15], al
mov al, _boss_statebyte[13]
add al, 4
mov _boss_statebyte[13], al
loc_18524:
pop bp
retn
sub_184BC endp
; =============== S U B R O U T I N E =======================================
; Attributes: bp-based frame
sub_18526 proc near
push bp
mov bp, sp
mov ax, _boss_phase_frame
mov bx, 8
cwd
idiv bx
or dx, dx
jnz short loc_1858E
mov _bullet_template.spawn_type, BST_NORMAL
mov _bullet_template.BT_group, BG_RING
mov _bullet_template.spread, 3
mov _bullet_template.patnum, PAT_BULLET16_N_BLUE
mov al, _boss_statebyte[14]
mov _bullet_template.BT_angle, al
mov al, _boss_statebyte[13]
mov _bullet_template.speed, al
mov ax, _boss_phase_frame
mov bx, 16
cwd
idiv bx
or dx, dx
jnz short loc_18570
mov al, _bullet_template.speed
mov ah, 0
cwd
sub ax, dx
sar ax, 1
mov _bullet_template.speed, al
loc_18570:
call _bullet_template_tune
call _bullets_add_regular
call snd_se_play pascal, 3
mov al, _boss_statebyte[14]
add al, -6
mov _boss_statebyte[14], al
mov al, _boss_statebyte[13]
add al, 4
mov _boss_statebyte[13], al
loc_1858E:
pop bp
retn
sub_18526 endp
; =============== S U B R O U T I N E ======================================= ; =============== S U B R O U T I N E =======================================
; Attributes: bp-based frame ; Attributes: bp-based frame
@ -20963,8 +20863,8 @@ off_22758 dw offset @pattern_blue_curve_counterclockw$qv
off_2275E dw offset @pattern_red_stacks$qv off_2275E dw offset @pattern_red_stacks$qv
dw offset @pattern_pellet_arcs_at_expanding$qv dw offset @pattern_pellet_arcs_at_expanding$qv
dw offset @pattern_random_red_rings$qv dw offset @pattern_random_red_rings$qv
dw offset sub_184BC dw offset @pattern_accelerating_spirals_clo$qv
dw offset sub_18526 dw offset @pattern_accelerating_spirals_cou$qv
off_22768 dw offset sub_198B7 off_22768 dw offset sub_198B7
dw offset sub_19928 dw offset sub_19928
dw offset sub_1999A dw offset sub_1999A