link radio

config/dol_slices.yml

@@ -48,6 +48,9 @@ jaudio_NES/rhythm.c:
     .sdata: [0x80217bd0, 0x80217bd8]
     .sbss: [0x802183a0, 0x802183b0]
     .sdata2: [0x80218d60, 0x80218d78]
+jaudio_NES/radio.c:
+    .text: [0x800165ec, 0x8001676c]
+    .sdata2: [0x80218d78, 0x80218d88]
 jaudio_NES/aictrl.c:
     .text: [0x80017e80, 0x80018640]
     .rodata: [0x800aa500, 0x800aa518]

configure.py

@@ -635,6 +635,7 @@ JAUDIO_FUNC_ALIGN_32_TUS = [
 JAUDIO_USER_TUS = [
     "verysimple.c",
     "melody.c",
+    "radio.c",
     "rhythm.c"
 ]
 

include/jaudio_NES/kappa.h

@@ -7,7 +7,7 @@
 extern "C" {
 #endif
 
-extern void Na_GetRadioCounter(void*);
+extern void Na_GetKappaCounter(void*);
 
 #ifdef __cplusplus
 }

include/jaudio_NES/radio.h

@@ -3,11 +3,17 @@
 
 #include "types.h"
 
+typedef struct radio_ {
+    /* 0x000 */ s8 unk0;
+    /* 0x004 */ f32 unk4;
+    /* 0x008 */ u16 tempo;
+} radio;
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-extern void Na_GetKappaCounter(void*);
+extern s16 Na_GetRadioCounter(radio* radio);
 
 #ifdef __cplusplus
 }

src/static/jaudio_NES/radio.c

@@ -0,0 +1,43 @@
+#include "jaudio_NES/radio.h"
+#include "jaudio_NES/game64.h"
+#include "jaudio_NES/audiowork.h"
+
+
+s16 Na_GetRadioCounter(radio* radio) {
+    int unk16;
+    u16 tempo = 0;
+    
+    group* group = nullptr;
+    int unused = 0;
+    
+
+    if (AG.groups[sou_now_bgm_handle].flags.enabled != 0 && AG.groups[sou_now_bgm_handle].seq_id == 0xDA) {
+        group = &(AG.groups)[sou_now_bgm_handle];
+
+    } else {
+        return -1;
+    }
+
+    unk16 = group->unk016;
+
+    (void)unused;
+
+    if (unk16 < 0x2E8) {
+        radio->unk0 = 0;
+    } else {
+        unk16 -= 0x2E8;
+        radio->unk0 = (s8)(unk16 / 0x300);
+        unk16 = unk16 - (radio->unk0 * 0x300);
+        radio->unk0++;
+    }
+    if (radio->unk0 == 9) {
+        radio->unk4 = unk16 / 216.0f;
+
+    } else {
+        radio->unk4 = unk16 / 768.0f;
+    }
+
+    radio->tempo = AG.groups[sou_now_bgm_handle].tempo / 48;
+    tempo = radio->tempo;
+    return 0;
+}