asm splitting

include/entity.h

@@ -14,8 +14,8 @@ typedef struct {
 } EntityType;
 
 union SplitWord {
-    u32 WORD;
-    u16 LO, HI;
+    s32 WORD;
+    s16 LO, HI;
 };
 
 typedef struct {

include/room.h

@@ -21,7 +21,11 @@ typedef struct {
 	u16 roomOriginY;
 	s16 roomScrollX;
 	s16 roomScrollY;
-	u8 filler[8];
+	u8 unk5;
+    u8 unk6;
+    u8 filler[4];
+	u8 screenShakeMagnitude;
+	u8 unk7;
 	u16 screenShakeTime;
 	u16 filler2[6];
 	u8 filler3[4];