region_map through sub_80BFFD0

1 files changed, 160 insertions, 0 deletions

diff --git a/src/region_map.c b/src/region_map.c
new file mode 100644
index 000000000..97bcd476b
--- /dev/null
+++ b/src/region_map.c
@@ -0,0 +1,160 @@
+#include "global.h"
+#include "palette.h"
+#include "task.h"
+#include "malloc.h"
+#include "overworld.h"
+#include "event_data.h"
+#include "region_map.h"
+#include "constants/flags.h"
+#include "constants/region_map.h"
+
+struct UnkStruct_20399D4
+{
+    u8 filler_0000[0x4796];
+    u8 field_4796;
+    u8 field_4797[4];
+    u8 field_479B;
+    u8 field_479C;
+    u8 filler_479D[3];
+    u8 field_47A0;
+    u8 filler_47A1[3];
+    u8 field_47A4;
+    u8 filler_47A5[3];
+    u8 field_47A8;
+    u8 filler_47A9[15];
+    TaskFunc field_47B8;
+    MainCallback field_47BC;
+};
+
+EWRAM_DATA struct UnkStruct_20399D4 * gUnknown_20399D4 = NULL;
+EWRAM_DATA void * gUnknown_20399D8 = NULL;
+EWRAM_DATA void * gUnknown_20399DC = NULL;
+EWRAM_DATA void * gUnknown_20399E0 = NULL;
+EWRAM_DATA void * gUnknown_20399E4 = NULL;
+EWRAM_DATA void * gUnknown_20399E8 = NULL;
+EWRAM_DATA void * gUnknown_20399EC = NULL;
+EWRAM_DATA void * gUnknown_20399F0[3] = {};
+EWRAM_DATA void * gUnknown_20399FC = NULL;
+
+static void sub_80BFFD0(void);
+void sub_80C0100(void);
+void sub_80C04E4(u8 taskId);
+void sub_80C4F08(u8 taskId);
+
+#include "data/text/map_section_names.h"
+
+extern const u16 gUnknown_83EF2DC[];
+extern const u8 sSeviiMapsecs[3][30];
+extern const u8 gUnknown_83F1B00[3][4];
+
+static void RegionMap_DarkenPalette(u16 *pal, u16 size, u16 tint)
+{
+    int i;
+    int r, g, b;
+
+    for (i = 0; i < size; i++)
+    {
+        r = (*pal) & 0x1F;
+        g = ((*pal) >> 5) & 0x1F;
+        b = ((*pal) >> 10) & 0x1F;
+
+        r = (((r << 8) / 100) * tint) >> 8;
+        g = (((g << 8) / 100) * tint) >> 8;
+        b = (((b << 8) / 100) * tint) >> 8;
+
+        *pal = RGB2(r, g, b);
+        pal++;
+    }
+}
+
+void sub_80BFEA0(void)
+{
+    u16 pal[16];
+    CpuCopy16(&gUnknown_83EF2DC[0x20], pal, sizeof(pal));
+    RegionMap_DarkenPalette(pal, NELEMS(pal), 95);
+    LoadPalette(pal, 0x20, 0x20);
+    LoadPalette(&gUnknown_83EF2DC[0x2F], 0x2F, sizeof(u16));
+}
+
+void sub_80BFEDC(u8 kind)
+{
+    gUnknown_20399D4 = AllocZeroed(sizeof(struct UnkStruct_20399D4));
+    if (gUnknown_20399D4 == NULL)
+    {
+        SetMainCallback2(CB2_ReturnToField);
+    }
+    else
+    {
+        gUnknown_2031DE0 = TRUE;
+        gUnknown_20399D4->field_4796 = kind;
+        gUnknown_20399D4->field_47A0 = 0;
+        gUnknown_20399D4->field_47A4 = 0;
+        gUnknown_20399D4->field_47A8 = 0;
+        sub_80BFFD0();
+        SetMainCallback2(sub_80C0100);
+    }
+}
+
+void sub_80BFF50(u8 kind, MainCallback cb)
+{
+    gUnknown_20399D4 = AllocZeroed(sizeof(struct UnkStruct_20399D4));
+    if (gUnknown_20399D4 == NULL)
+    {
+        SetMainCallback2(CB2_ReturnToField);
+    }
+    else
+    {
+        gUnknown_2031DE0 = TRUE;
+        gUnknown_20399D4->field_4796 = kind;
+        gUnknown_20399D4->field_47A0 = 0;
+        gUnknown_20399D4->field_47A4 = 0;
+        gUnknown_20399D4->field_47A8 = 0;
+        gUnknown_20399D4->field_47BC = cb;
+        sub_80BFFD0();
+        SetMainCallback2(sub_80C0100);
+    }
+}
+
+static void sub_80BFFD0(void)
+{
+    u8 i;
+    u8 j;
+    u8 r7;
+
+    switch (gUnknown_20399D4->field_4796)
+    {
+    default:
+    case 0:
+    case 1:
+        gUnknown_20399D4->field_47B8 = sub_80C04E4;
+        break;
+    case 2:
+        gUnknown_20399D4->field_47B8 = sub_80C4F08;
+        break;
+    }
+    for (i = 0; i < 4; i++)
+    {
+        gUnknown_20399D4->field_4797[i] = gUnknown_83F1B00[gUnknown_20399D4->field_4796][i];
+    }
+    if (!FlagGet(FLAG_SYS_SEVII_MAP_123))
+        gUnknown_20399D4->field_4797[0] = FALSE;
+    r7 = 0;
+    j = 0;
+    if (gMapHeader.regionMapSectionId >= MAPSECS_SEVII_123)
+    {
+        while (r7 == 0)
+        {
+            for (i = 0; sSeviiMapsecs[j][i] != MAPSEC_NONE; i++)
+            {
+                if (gMapHeader.regionMapSectionId == sSeviiMapsecs[j][i])
+                {
+                    r7 = j + 1;
+                    break;
+                }
+            }
+            j++;
+        }
+    }
+    gUnknown_20399D4->field_479B = r7;
+    gUnknown_20399D4->field_479C = r7;
+}