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Dedicated richer, coherent tragic finale music

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Replace the reused gameover music for game_over==3 with an original
192-step (24-chord) finale piece: a descending D-minor lament
(Dm-C-Bb-A7) that intensifies with high arpeggios (the 'scream'),
then plunges into the abyss as the bass descends to the lowest C and
fades to silence. Three channels: CH1 melody, CH2 bass, CH4 noise toll
(mid toll on chord changes, crash at the climax, deep toll in the abyss),
at a somber 14 frames/note.

- sound.c: finale_ch1_seq[192], finale_ch2_seq[192], play_finale_step(),
  finale_music_timer/step, sequencer branch for game_over==3.
- sound.h: play_finale_step prototype.

Verified via PyBoy: all three APU channels active throughout the finale.
This commit is contained in:
Matteo Benedetto
2026-06-24 16:10:47 +02:00
parent 0f88cea912
commit 4d7bb13bc3
3 changed files with 105 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/sound.c
+103 -1
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@@ -25,6 +25,9 @@ static volatile uint8_t victory_music_step = 0;
static volatile uint8_t title_music_timer = 0;
static volatile uint8_t title_music_step = 0;
static volatile uint8_t finale_music_timer = 0;
static volatile uint8_t finale_music_step = 0;
// Note frequencies calculation: (2048 - (131072 / frequency))
#define R 0
#define N_C2 44
@@ -188,6 +191,60 @@ const uint16_t title_melody[32] = {
N_E2, N_B2, N_E3, N_B2, N_GS3, N_E3, N_B2, N_E2 // E
};
const uint16_t finale_ch1_seq[192] = {
N_A4, R, N_F4, R, N_D4, R, N_A3, R,
N_A4, N_F4, N_D4, N_A3, N_F4, N_D4, N_A3, R,
N_G4, R, N_E4, R, N_C4, R, N_G3, R,
N_F4, R, N_D4, R, N_AS3, R, N_F3, R,
N_E4, R, N_CS4, R, N_A3, R, N_E3, R,
N_A4, N_F4, N_D4, N_A3, N_A4, N_F4, N_D4, R,
N_A4, N_A4, N_G4, N_F4, N_E4, N_F4, N_D4, R,
N_G4, N_F4, N_E4, N_D4, N_C4, N_D4, N_E4, R,
N_F4, N_F4, N_E4, N_D4, N_C4, N_AS3, N_A3, R,
N_E4, N_E4, N_D4, N_CS4, N_B3, N_CS4, N_E4, R,
N_A5, R, N_A5, N_G5, N_F5, N_E5, N_D5, R,
N_A5, N_F5, N_D5, N_A4, N_F5, N_D5, N_A4, R,
N_G5, R, N_G5, N_F5, N_E5, N_D5, N_C5, R,
N_F5, R, N_F5, N_E5, N_D5, N_C5, N_AS4, R,
N_E5, N_E5, N_F5, N_E5, N_CS5, N_A4, N_CS5, R,
N_D5, N_C5, N_B4, N_A4, N_G4, N_F4, N_E4, R,
N_A4, N_G4, N_F4, N_E4, N_D4, N_C4, N_AS3, N_A3,
N_D4, R, N_C4, R, N_AS3, R, N_A3, R,
N_D4, R, N_C4, R, N_AS3, R, N_A3, R,
N_E3, R, R, R, N_A3, R, R, R,
N_D3, R, R, R, R, R, R, R,
N_D3, R, R, R, N_C2, R, R, R,
N_C2, R, R, R, R, R, R, R,
R, R, R, R, R, R, R, R
};
const uint16_t finale_ch2_seq[192] = {
N_D3, R, R, R, R, R, R, R,
N_A2, R, R, R, R, R, R, R,
N_C3, R, R, R, R, R, R, R,
N_AS2, R, R, R, R, R, R, R,
N_A2, R, R, R, N_E3, R, R, R,
N_D3, R, R, R, R, R, R, R,
N_D3, R, N_A2, R, N_D3, R, N_A2, R,
N_C3, R, N_G2, R, N_C3, R, N_G2, R,
N_AS2, R, N_F2, R, N_AS2, R, N_F2, R,
N_A2, R, N_E3, R, N_A2, R, N_E3, R,
N_D3, R, R, R, N_A2, R, R, R,
N_D3, R, N_A2, R, N_D3, R, N_A2, R,
N_C3, R, N_G2, R, N_C3, R, N_G2, R,
N_AS2, R, N_F2, R, N_AS2, R, N_F2, R,
N_A2, R, N_E3, R, N_A2, R, N_E3, R,
N_D3, N_C3, N_AS2, N_A2, N_G2, N_F2, N_E2, R,
N_A2, N_G2, N_F2, N_E2, N_D3, N_C3, N_AS2, N_A2,
N_D3, R, N_C3, R, N_AS2, R, N_A2, R,
N_D3, R, N_C3, R, N_AS2, R, N_A2, R,
N_A2, R, R, R, N_E3, R, R, R,
N_D3, R, R, R, R, R, R, R,
N_D3, R, R, R, N_C2, R, R, R,
N_C2, R, R, R, R, R, R, R,
R, R, R, R, R, R, R, R
};
void sound_reset_music_state(void) {
music_timer = 0;
music_step = 0;
@@ -197,6 +254,8 @@ void sound_reset_music_state(void) {
victory_music_step = 0;
title_music_timer = 0;
title_music_step = 0;
finale_music_timer = 0;
finale_music_step = 0;
}
static void play_note(uint16_t reg_val) {
@@ -240,6 +299,40 @@ void play_gameover_step(uint8_t step) {
}
}
void play_finale_step(uint8_t step) {
if (step < 192) {
uint16_t n1 = finale_ch1_seq[step];
if (n1 != R) {
NR10_REG = 0x00;
NR11_REG = 0x80;
NR12_REG = 0xA2; // soft, long fade: somber melody
NR13_REG = n1 & 0xFF;
NR14_REG = (n1 >> 8) | 0x80;
}
uint16_t n2 = finale_ch2_seq[step];
if (n2 != R) {
NR21_REG = 0x80;
NR22_REG = 0xD1; // deep bass, slow fade
NR23_REG = n2 & 0xFF;
NR24_REG = (n2 >> 8) | 0x80;
}
// CH4 noise toll at the start of each chord (every 8 steps):
// mid toll by default, crash at the scream climax, deep toll in the abyss.
if (step % 8 == 0) {
NR41_REG = 0x01;
NR42_REG = 0xB2;
if (step >= 160) {
NR43_REG = 0x70; // deep toll (abyss)
} else if (step == 80 || step == 88 || step == 112) {
NR43_REG = 0x42; // crash (climax)
} else {
NR43_REG = 0x68; // mid toll
}
NR44_REG = 0x80;
}
}
}
void play_victory_step(uint8_t step) {
if (step < 96) {
uint16_t n1 = next_level_seq[step];
@@ -296,7 +389,7 @@ void play_music_tick(void) {
if (game_over) { // ENDGAME
if (game_over_timer == 0) { // Se il ritardo di fine partita è terminato
if (game_over == 1 || game_over == 3) { // Defeat (Ghost) o Finale tragico
if (game_over == 1) { // Defeat (Ghost)
gameover_music_timer++;
if (gameover_music_timer >= 10) { // 10 frames per note (~6 notes/sec)
gameover_music_timer = 0;
@@ -305,6 +398,15 @@ void play_music_tick(void) {
gameover_music_step++;
}
}
} else if (game_over == 3) { // Finale tragico (brano dedicato, piu' lento)
finale_music_timer++;
if (finale_music_timer >= 14) { // 14 frames per note (~4 notes/sec, somber)
finale_music_timer = 0;
if (finale_music_step < 192) {
play_finale_step(finale_music_step);
finale_music_step++;
}
}
} else if (game_over == 2) { // Next Level (Going Deeper)
victory_music_timer++;
if (victory_music_timer >= 15) { // 15 frames per note = 4 notes/sec