mirror of https://github.com/nmlgc/ReC98.git
[Decompilation] [th05] Shinki: Pattern 9/11
The one where Shinki fires aimed purple 32×32 ball bullets, together with symmetric rotating spreads from the left and right edges of her wings whose angles rotate along ¾ of a circle. Part of P0190, funded by nrook.
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nmlgc
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8b79dd5371
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2027639c81
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@ -24,6 +24,7 @@ extern "C" {
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#include "th05/main/bullet/cheeto.hpp"
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#include "th05/main/bullet/laser.hpp"
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#include "th05/main/boss/boss.hpp"
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#include "th05/main/player/player.hpp"
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#include "th05/sprites/main_pat.h"
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// Constants
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@ -381,3 +382,47 @@ bool near pattern_wings_to_purple(void)
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}
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return (boss.phase_frame == 200);
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}
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void near pattern_aimed_b6balls_and_symmetric_spreads(void)
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{
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#define b6ball_interval boss_statebyte[15]
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if(boss.phase_frame <= 128) {
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return;
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}
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if(boss.phase_frame == 129) {
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b6ball_interval = select_for_rank(96, 32, 28, 24);
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}
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int spread_cycle = (boss.phase_frame % (0x40 * 2));
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if((boss.phase_frame % b6ball_interval) == 0) {
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b6ball_template.angle = player_angle_from(b6ball_template.origin);
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b6ball_template.speed.set(4.0f);
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b6ball_template.patnum_tiny = PAT_B6BALL_PURPLE;
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b6balls_add();
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}
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if((boss.phase_frame % 4) == 0) {
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bullet_template.origin.x -= (SHINKI_WING_W / 2);
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bullet_template.group = BG_SPREAD;
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bullet_template.special_motion = BSM_EXACT_LINEAR;
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bullet_template.set_spread(3, 0x02);
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bullet_template.spawn_type = (BST_CLOUD_FORWARDS | BST_NO_SLOWDOWN);
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bullet_template.speed.set(2.5f);
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bullet_template.patnum = PAT_BULLET16_V_RED;
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if(spread_cycle < 0x40) {
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bullet_template.angle = (spread_cycle * 3);
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} else {
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bullet_template.angle = (0x40 - (spread_cycle * 3));
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}
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bullets_add_special();
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bullet_template.angle = (0x80 - bullet_template.angle);
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bullet_template.origin.x += SHINKI_WING_W;
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bullets_add_special();
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snd_se_play(15);
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}
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#undef b6ball_interval
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}
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@ -5,3 +5,9 @@
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unsigned char pascal near player_angle_from(
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Subpixel x, Subpixel y, unsigned char plus_angle = 0
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);
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inline unsigned char near player_angle_from(
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const PlayfieldPoint &point, unsigned char plus_angle = 0
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) {
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return player_angle_from(point.x, point.y, plus_angle);
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}
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@ -19185,93 +19185,11 @@ BOSS_6_TEXT segment byte public 'CODE' use16
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@pattern_random_rain_and_spreads_$qv procdesc near
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@pattern_cheetos_within_spread_wa$qv procdesc near
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@pattern_wings_to_purple$qv procdesc near
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@pattern_aimed_b6balls_and_symmet$qv procdesc near
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BOSS_6_TEXT ends
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BOSS_X_TEXT segment byte public 'CODE' use16
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; =============== S U B R O U T I N E =======================================
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; Attributes: bp-based frame
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sub_1DC2F proc near
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push bp
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mov bp, sp
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push si
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cmp _boss_phase_frame, 128
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jle loc_1DCFD
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cmp _boss_phase_frame, 129
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jnz short loc_1DC59
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push (60h shl 16) or 20h
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push (1Ch shl 16) or 18h
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call select_for_rank
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mov _boss_statebyte[15], al
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loc_1DC59:
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mov ax, _boss_phase_frame
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mov bx, 128
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cwd
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idiv bx
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mov si, dx
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mov al, _boss_statebyte[15]
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mov ah, 0
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push ax
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mov ax, _boss_phase_frame
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cwd
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pop bx
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idiv bx
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or dx, dx
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jnz short loc_1DC93
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call @player_angle_from$q20%SubpixelBase$ti$ti%t1uc pascal, b6ball_template.pos.cur.x, b6ball_template.pos.cur.y, 0
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mov b6ball_template.B6B_angle, al
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mov b6ball_template.B6B_speed, (4 shl 4)
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mov b6ball_template.B6B_patnum_tiny, PAT_B6BALL_PURPLE
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call @b6balls_add$qv
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loc_1DC93:
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mov ax, _boss_phase_frame
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mov bx, 4
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cwd
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idiv bx
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or dx, dx
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jnz short loc_1DCFD
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sub _bullet_template.BT_origin.x, (128 shl 4)
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mov _bullet_template.BT_group, BG_SPREAD
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mov _bullet_template.BT_special_motion, BSM_EXACT_LINEAR
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mov word ptr _bullet_template.spread, (2 shl 8) or 3
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mov _bullet_template.spawn_type, BST_CLOUD_FORWARDS or BST_NO_SLOWDOWN
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mov _bullet_template.speed, (2 shl 4) + 8
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mov _bullet_template.patnum, PAT_BULLET16_V_RED
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cmp si, 64
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jge short loc_1DCD4
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mov ax, si
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imul ax, 3
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mov _bullet_template.BT_angle, al
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jmp short loc_1DCE1
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; ---------------------------------------------------------------------------
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loc_1DCD4:
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mov ax, si
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imul ax, 3
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mov dl, 64
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sub dl, al
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mov _bullet_template.BT_angle, dl
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loc_1DCE1:
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call _bullets_add_special
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mov al, 80h
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sub al, _bullet_template.BT_angle
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mov _bullet_template.BT_angle, al
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add _bullet_template.BT_origin.x, (256 shl 4)
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call _bullets_add_special
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call snd_se_play pascal, 15
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loc_1DCFD:
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pop si
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pop bp
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retn
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sub_1DC2F endp
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; =============== S U B R O U T I N E =======================================
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; Attributes: bp-based frame
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@ -19916,7 +19834,7 @@ loc_1E3E7:
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jz loc_1E527
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inc _boss_phase
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mov _boss_phase_frame, 0
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mov fp_2CE4A, offset sub_1DC2F
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mov fp_2CE4A, offset @pattern_aimed_b6balls_and_symmet$qv
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jmp loc_1E36F
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; ---------------------------------------------------------------------------
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