Rename some misnamed gas symbols to nbomb symbols

src/include/game/data/data_000000.h

@@ -222,13 +222,13 @@ extern s32 g_FootstepSounds[];
 extern u16 var800615a0[][2];
 extern f32 var80061630;
 extern u32 var80061634;
-extern bool g_GasActive;
+extern bool g_NbombsActive;
 extern f32 var80061644;
 extern u32 var80061648;
 extern u32 var8006164c;
 extern u32 var80061694;
 extern u32 var800616dc;
-extern struct audiohandle *g_GasAudioHandle;
+extern struct audiohandle *g_NbombAudioHandle;
 extern u32 var800616e8;
 extern struct stageheadlimit g_StageHeadLimits[3];
 extern u32 var80061710;

src/include/game/game_006bd0.h

@@ -7,16 +7,16 @@ f32 func0f006bd0(f32 arg0);
 u32 func0f006c80(void);
 u32 func0f008558(void);
 u32 func0f0094b4(void);
-s32 func0f0094bc(struct gaspart *part);
-Gfx *func0f009504(void);
-Gfx *func0f009818(Gfx *gdl, struct gaspart *part, Gfx *subgdl);
+s32 nbombCalculateAlpha(struct nbomb *nbomb);
+Gfx *nbombAllocateGdl(void);
+Gfx *nbombRender(Gfx *gdl, struct nbomb *nbomb, Gfx *subgdl);
 void func0f0099a4(void);
-void func0f0099e4(struct gaspart *part);
-void func0f009d10(struct gaspart *part);
-void gasTick(void);
-Gfx *func0f00a168(Gfx *gdl);
+void func0f0099e4(struct nbomb *nbomb);
+void nbombTick(struct nbomb *nbomb);
+void nbombsTick(void);
+Gfx *nbombsRender(Gfx *gdl);
 u32 func0f00a1f8(void);
-f32 doorGetFrac(s32 tagnum);
+f32 gasGetDoorFrac(s32 tagnum);
 Gfx *func0f00a490(Gfx *gdl);
 Gfx *gasRender(Gfx *gdl);
 void func0f00b180(void);

src/include/gvars/gvars.h

@@ -494,7 +494,7 @@ extern u32 var8009cadc;
 extern u32 var8009cae0;
 extern u8 var8009caec[4];
 extern u8 var8009caf0;
-extern struct gaspart g_GasParts[6];
+extern struct nbomb g_Nbombs[6];
 extern u32 var8009cbf8;
 extern struct prop *g_DangerousProps[MAX_DANGEROUSPROPS];
 extern s32 var8009cc30;

src/include/types.h

@@ -6835,10 +6835,10 @@ struct var8006996c {
 	/*0x28*/ u32 unk28;
 };
 
-struct gaspart {
+struct nbomb {
 	struct coord pos;
 	s32 age240;
-	f32 unk10;
+	f32 radius;
 	s16 unk14;
 	f32 unk18;
 	u32 unk1c;