Merge pull request #458 from EllipticEllipsis/code_08049D30

Decompile the file formerly known as `code_08049D30`

1 files changed, 60 insertions, 9 deletions

diff --git a/src/code_08049CD4.c b/src/code_08049CD4.c
index a773306d..c98323d1 100644
--- a/src/code_08049CD4.c
+++ b/src/code_08049CD4.c
@@ -1,25 +1,76 @@
+#define NENT_DEPRECATED
 #include "global.h"
-
-extern u32* gUnk_020354B0;
-extern u32 gRoomMemory;
+#include "room.h"
 
 extern void MemFill32(u32, void*, u32);
 
+void sub_08049DCC(RoomMemory*);
+RoomMemory* sub_08049D88(void);
+
 void ClearRoomMemory(void) {
-    MemFill32(0xFFFFFFFF, &gRoomMemory, 0x40);
-    gUnk_020354B0 = &gRoomMemory;
+    MemFill32(0xFFFFFFFF, gRoomMemory, 0x40);
+    gUnk_020354B0 = gRoomMemory;
 }
 
-void sub_08049CF4(u8* arg0) {
-    u8 field_0x6c = *(arg0 + 0x6c);
+void sub_08049CF4(GenericEntity* ent) {
+    u8 field_0x6c = ent->field_0x6c.HALF.LO;
     if (field_0x6c & 0x80) {
-        *(gUnk_020354B0 + 1) |= 1 << (field_0x6c & 0x1f);
+        gUnk_020354B0->unk_04 |= 1 << (field_0x6c & 0x1f);
     }
 }
 
 u32 sub_08049D1C(u32 arg0) {
-    u32 bitmask = *(gUnk_020354B0 + 1) >> arg0;
+    u32 bitmask = gUnk_020354B0->unk_04 >> arg0;
     u32 output = 1;
     output &= ~bitmask;
     return output;
 }
+
+void UpdateRoomTracker(void) {
+    gUnk_020354B0 = gRoomMemory;
+
+    do {
+        if (gUnk_020354B0->area == gRoomControls.area && gUnk_020354B0->room == gRoomControls.room) {
+            sub_08049DCC(gUnk_020354B0);
+            return;
+        }
+        gUnk_020354B0++;
+
+    } while (gUnk_020354B0 < gRoomMemory + 8);
+    gUnk_020354B0 = sub_08049D88();
+}
+
+RoomMemory* sub_08049D88(void) {
+    RoomMemory* rm = gRoomMemory;
+    RoomMemory* r1 = rm + 1;
+
+    do {
+        if (r1->unk_02 > rm->unk_02) {
+            rm = r1;
+        }
+        r1++;
+    } while (r1 < gRoomMemory + 8);
+
+    rm->area = gRoomControls.area;
+    rm->room = gRoomControls.room;
+
+    rm->unk_02 = 0xFFFF;
+    rm->unk_04 = 0;
+
+    sub_08049DCC(rm);
+
+    return rm;
+}
+
+void sub_08049DCC(RoomMemory* rm) {
+    RoomMemory* r1 = gRoomMemory;
+
+    do {
+        if (r1->unk_02 < rm->unk_02) {
+            r1->unk_02++;
+        }
+        r1++;
+    } while (r1 < gRoomMemory + 8);
+
+    rm->unk_02 = 0;
+}