Decompile ShowPokedexCryScreen

2 files changed, 91 insertions, 22 deletions

diff --git a/src/pokedex.c b/src/pokedex.c
index a5dcfe049..3ef1de51e 100644
--- a/src/pokedex.c
+++ b/src/pokedex.c
@@ -51,15 +51,6 @@ struct PokedexEntry
     /*0x20*/ u16 trainerOffset;
 };  /*size = 0x24*/
 
-struct CryRelatedStruct
-{
-    u16 unk0;
-    u8 unk2;
-    u8 unk3;
-    u8 unk4;
-    u8 unk5;
-};
-
 extern struct MusicPlayerInfo gMPlay_BGM;
 extern u8 gReservedSpritePaletteCount;
 extern struct PokedexView *gPokedexView;
@@ -124,13 +115,6 @@ u16 NationalPokedexNumToSpecies(u16);
 //  asm/pokedex_area_screen
 void ShowPokedexAreaScreen(u16 species, u8 *string);
 
-// asm/pokedex_cry_screen
-u8 sub_8119E3C(struct CryRelatedStruct *, u8);
-void sub_8119F88(u8 a);
-void sub_811A050(u16 species);
-u8 ShowPokedexCryScreen(struct CryRelatedStruct *, u8);
-void DestroyCryMeterNeedleSprite();
-
 void sub_808C02C(void)
 {
     u16 i;
@@ -2526,9 +2510,9 @@ void Task_InitCryScreenMultistep(u8 taskId)
 
             sp8.unk0 = 0x4020;
             sp8.unk2 = 0x1F;
-            sp8.unk3 = 8;
-            sp8.unk5 = 0x1E;
-            sp8.unk4 = 0xC;
+            sp8.paletteNo = 8;
+            sp8.yPos = 0x1E;
+            sp8.xPos = 0xC;
             if (sub_8119E3C(&sp8, 0) != 0)
             {
                 gMain.state++;
@@ -2542,9 +2526,9 @@ void Task_InitCryScreenMultistep(u8 taskId)
 
             sp10.unk0 = 0x3000;
             sp10.unk2 = 0xE;
-            sp10.unk3 = 9;
-            sp10.unk4 = 0x12;
-            sp10.unk5 = 3;
+            sp10.paletteNo = 9;
+            sp10.xPos = 0x12;
+            sp10.yPos = 3;
             if (ShowPokedexCryScreen(&sp10, 1) != 0)
             {
                 gMain.state++;
diff --git a/src/pokedex_cry_screen.c b/src/pokedex_cry_screen.c
new file mode 100644
index 000000000..53807befc
--- /dev/null
+++ b/src/pokedex_cry_screen.c
@@ -0,0 +1,85 @@
+#include "global.h"
+#include "asm.h"
+#include "palette.h"
+#include "sprite.h"
+
+struct Unk201C800 {
+    u8 unk_0;
+    u8 unk_1;
+    u8 unk_2;
+    u8 filler_3;
+    u16 unk_4;
+};
+
+#define EWRAM_1C800 (*(struct Unk201C800 *)(unk_201C000 + 0x800))
+
+extern u8 unk_201C000[];
+
+extern u8 gUnknown_03005E98;
+
+// data/pokedex_cry_screen.o
+extern const u16 gUnknown_083FAE7C[];
+extern const u16 gUnknown_083FAF1C[];
+extern const u8 gUnknown_083FAF3C[];
+extern struct SpriteTemplate gSpriteTemplate_83FB774;
+extern const struct SpriteSheet gCryMeterNeedleSpriteSheets[];
+extern const struct SpritePalette gCryMeterNeedleSpritePalettes[];
+
+#if ENGLISH
+#define CRY_METER_MAP_WIDTH 10
+#elif GERMAN
+#define CRY_METER_MAP_WIDTH 32
+#endif
+
+u8 ShowPokedexCryScreen(struct CryRelatedStruct *cry, u8 arg1) {
+    int returnVal = FALSE;
+
+    switch (gUnknown_03005E98)
+    {
+    case 0:
+        LZ77UnCompVram(gUnknown_083FAF3C, (void *) (VRAM + cry->unk0));
+        LoadPalette(&gUnknown_083FAF1C, cry->paletteNo * 16, 0x20);
+        gUnknown_03005E98 += 1;
+        break;
+
+    case 1:
+    {
+        void *vram;
+        u8 row, col;
+        u32 r12;
+        int x, y;
+
+        vram = (void *) BG_SCREEN_ADDR(cry->unk2);
+
+        r12 = (u32) (cry->unk0 << 18) >> 23;
+
+        for (row = 0; row < 8; row++)
+        {
+            for (col = 0; col < 10; col++)
+            {
+                y = row + cry->yPos;
+                x = col + cry->xPos;
+                *(u16 *) (vram + (y * 64 + x * 2)) = (gUnknown_083FAE7C[row * CRY_METER_MAP_WIDTH + col] | (cry->paletteNo << 12)) + r12;
+            }
+        }
+
+        gUnknown_03005E98 += 1;
+        break;
+    }
+
+    case 2:
+    {
+        LoadSpriteSheets(gCryMeterNeedleSpriteSheets);
+        LoadSpritePalettes(gCryMeterNeedleSpritePalettes);
+        EWRAM_1C800.unk_4 = CreateSprite(&gSpriteTemplate_83FB774, 40 + cry->xPos * 8, 56 + cry->yPos * 8, 1);
+        EWRAM_1C800.unk_0 = 0x20;
+        EWRAM_1C800.unk_1 = 0x20;
+        EWRAM_1C800.unk_2 = 0;
+
+        returnVal = TRUE;
+        break;
+    }
+    }
+
+    return returnVal;
+}