feat: toggle music with SELECT and make newborn rats face opposite parent dir

prepare_title.py

@@ -93,7 +93,7 @@ def draw_text(text, start_y_tiles, scale=1):
                                     is_text_mask[py, px] = True
 
 # Align to 8x8 grid strictly
-draw_text("MICE! MAZE", 1, scale=2)
+draw_text("MICE!", 1, scale=2)
 draw_text("A GAME BY MATTEO", 5, scale=1)
 draw_text("BECAUSE HE WAS BORED", 6, scale=1)
 draw_text("PRESS START", 16, scale=1)

src/cursor.c

@@ -2,6 +2,7 @@
 #include "maze.h"
 #include <gb/gb.h>
 #include "bomb.h"
+#include "music.h"
 
 const unsigned char CursorSpriteData[] = {
     // Bordo quadrato 8x8 (Nero, colore 3 -> 11)
@@ -50,6 +51,11 @@ void update_cursor(void) {
         drop_bomb(cursor_x, cursor_y);
     }
     
+    // Tasto SELECT per attivare/disattivare la musica
+    if ((keys & J_SELECT) && !(previous_keys & J_SELECT)) {
+        toggle_music();
+    }
+    
     previous_keys = keys;
     
     // Effetto lampeggiante: nascondi il cursore per metà del ciclo (ogni 16 frame)

src/music.c

@@ -250,6 +250,18 @@ static uint16_t tick = 0;
 static uint8_t frame_counter = 0;
 static uint8_t sfx_timer = 0;
 static uint8_t game_over_mode = 0;
+uint8_t music_enabled = 1;
+
+void toggle_music(void) {
+    music_enabled = !music_enabled;
+    if (!music_enabled) {
+        // Muta tutti i canali
+        NR12_REG = 0x00; NR14_REG = 0x80;
+        NR22_REG = 0x00; NR24_REG = 0x80;
+        NR32_REG = 0x00; NR34_REG = 0x80;
+        NR42_REG = 0x00; NR44_REG = 0x80;
+    }
+}
 
 #define FRAMES_PER_TICK 8 // Velocità del tracker
 
@@ -353,7 +365,7 @@ void update_music(void) {
             uint8_t sub = tick & 0x3F;         // tick % 64
             
             // --- CH1: Arpeggio ---
-            if (sfx_timer == 0) {
+            if (sfx_timer == 0 && music_enabled) {
                 uint16_t f1 = arp_parts[part][sub];
                 NR10_REG = 0x00; 
                 NR11_REG = 0x80; 
@@ -363,28 +375,33 @@ void update_music(void) {
             }
             
             // --- CH2: Melody ---
-            uint16_t f2 = mel_parts[part][sub];
-            if (f2 == N_REST) {
-                NR21_REG = 0x00; NR22_REG = 0x00; NR23_REG = 0x00; NR24_REG = 0x80;
-            } else {
-                NR21_REG = 0x80; 
-                NR22_REG = 0xF2; // Volume alto
-                NR23_REG = (uint8_t)(f2 & 0xFF);
-                NR24_REG = 0x80 | ((f2 >> 8) & 0x07);
+            if (music_enabled) {
+                uint16_t f2 = mel_parts[part][sub];
+                if (f2 == N_REST) {
+                    NR21_REG = 0x00; NR22_REG = 0x00; NR23_REG = 0x00; NR24_REG = 0x80;
+                } else {
+                    NR21_REG = 0x80; 
+                    NR22_REG = 0xF2; // Volume alto
+                    NR23_REG = (uint8_t)(f2 & 0xFF);
+                    NR24_REG = 0x80 | ((f2 >> 8) & 0x07);
+                }
             }
             
             // --- CH3: Bass ---
-            uint16_t f3 = bass_parts[part][sub];
-            if (f3 == N_REST) {
-                NR32_REG = 0x00; // Vol 0
-                NR34_REG = 0x80;
-            } else {
-                NR32_REG = 0x20; // Vol 100%
-                NR33_REG = (uint8_t)(f3 & 0xFF);
-                NR34_REG = 0x80 | ((f3 >> 8) & 0x07);
+            if (music_enabled) {
+                uint16_t f3 = bass_parts[part][sub];
+                if (f3 == N_REST) {
+                    NR32_REG = 0x00; // Vol 0
+                    NR34_REG = 0x80;
+                } else {
+                    NR32_REG = 0x20; // Vol 100%
+                    NR33_REG = (uint8_t)(f3 & 0xFF);
+                    NR34_REG = 0x80 | ((f3 >> 8) & 0x07);
+                }
             }
             
             // --- CH4: Drums ---
+            if (sfx_timer == 0 && music_enabled) {
             uint8_t d4 = drum_parts[part][sub];
             if (d4 == 1) { // Kick
                 NR41_REG = 0x00;
@@ -402,6 +419,7 @@ void update_music(void) {
                 NR43_REG = 0x21;
                 NR44_REG = 0x80;
             }
+            }
             
             // Avanza il tracker
             tick++;
@@ -428,6 +446,7 @@ void play_sfx_explosion(void) {
     NR42_REG = 0xF7; 
     NR43_REG = 0x6E; 
     NR44_REG = 0xC0;
+    sfx_timer = 30; // Proteggi CH4 e CH1
 }
 
 void play_sfx_bomb_drop(void) {
@@ -436,4 +455,5 @@ void play_sfx_bomb_drop(void) {
     NR42_REG = 0xA2; // Volume alto, decadimento rapido
     NR43_REG = 0x22; // Frequenza alta, noise
     NR44_REG = 0xC0; // Trigger
+    sfx_timer = 15; // Proteggi per la durata del suono
 }

src/music.h

@@ -3,6 +3,7 @@
 
 void init_music(void);
 void update_music(void);
+void toggle_music(void);
 
 void play_sfx_moan(void);
 void play_sfx_plop(void);

src/rat.c

@@ -79,17 +79,25 @@ void init_rats(void) {
     }
 }
 
-void spawn_rat(uint8_t x, uint8_t y) {
+void spawn_rat(uint8_t x, uint8_t y, uint8_t initial_dir) {
     for (uint8_t i = 0; i < MAX_RATS; i++) {
         if (!rats[i].active) {
             rats[i].active = 1;
             rats[i].rat_x = x;
             rats[i].rat_y = y;
+            
+            // Imposta la direzione e target in base all'iniziale (se valida e se possibile muoversi in quella dir)
+            rats[i].current_dir = initial_dir;
             rats[i].target_x = x;
             rats[i].target_y = y;
+            if (initial_dir == 0 && y < MAZE_HEIGHT - 1 && maze[y+1][x] == 0) rats[i].target_y++;
+            else if (initial_dir == 1 && y > 0 && maze[y-1][x] == 0) rats[i].target_y--;
+            else if (initial_dir == 2 && x > 0 && maze[y][x-1] == 0) rats[i].target_x--;
+            else if (initial_dir == 3 && x < MAZE_WIDTH - 1 && maze[y][x+1] == 0) rats[i].target_x++;
+            else rats[i].current_dir = 255; // Nessuna direzione valida trovata
+            
             rats[i].pixel_x = x * 8;
             rats[i].pixel_y = y * 8;
-            rats[i].current_dir = 255;
             rats[i].reproduce_timer = 0;
             rats[i].cooldown_timer = 120; // Il cucciolo non si riproduce subito
             rats[i].is_mother = 0;
@@ -172,7 +180,7 @@ void update_rats(void) {
                 r->cooldown_timer = 120; // 2 secondi di pausa
                 if (r->is_mother) {
                     r->is_mother = 0;
-                    spawn_rat(r->rat_x, r->rat_y);
+                    spawn_rat(r->rat_x, r->rat_y, get_opposite(r->current_dir));
                 }
             }
             continue;