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The Drowning Countdown is an object in Sonic the Hedgehog, theoretically able to appear anywhere in the game where water is present, though only appearing in Labyrinth Zone, as well as Scrap Brain Zone Act 3. It appears to the player as air bubbles emanating from Sonic's mouth, and as countdown numbers when Sonic's air time is low.

Subtypes

This object has a variety of subtypes, dictating whether this instance is a small bubble, medium-sized bubble, or drowning number. These will be documented in full detail later.

Object Status Table

	x0	x1	x2	x3	x4	x5	x6	x7	x8	x9	xA	xB	xC	xD	xE	xF
0x	ID	Render	Gfx	Gfx	Map	Map	Map	Map	XPos	XPos	XPos	XPos	YPos	YPos	YPos	YPos
1x	~	~	~	~	RespawnAddr	RespawnAddr	~	~	Priority	Priority	Frame	~	~	~	~	~
2x	ColType	~	~	DispWid	Routine	~	~	~	Subtype	~	~	~	RestartTime	RestartTime	~	~
3x	StartX	StartX	DisplayTime	BubbleType	ExtraBubbles	~	ExtraFlag	ExtraFlag	NumberTime	NumberTime	DelayTime	DelayTime	~	~	~	~

Code File

_incObj/0A Drowning Countdown.asm

Changes from Sonic 1

• Uses Revision 01 wobble data.
• Word-length obPriority pointer due to the new Priority Manager.
• Word-Length obRespawnAddr added due to the S3K Object Manager.
• Object no longer takes effect if Debug Mode is active, and air time is reset.
• BUGFIX: Slight adjustments made to drown handling to fix notable drowning bugs.
• ELECTIVE MOD: This object no longer takes effect if a Bubble Shield is active, and air time is reset.

Sprite Data

• Art Tiles: artnem/LZ Bubbles & Countdown.nem (116 tiles; Nemesis-compressed)
• Sprite Mappings: _maps/Bubbles.asm
• VRAM Location:
  • ArtTile_LZ_Bubbles ($304; Air Bubbles)
  • ArtTile_LZ_Sonic_Drowning ($440; Drown Numbers)

Later Game Equivalents

• Obj0A - Sonic 2
• Obj_AirCountdown - Sonic 3 & Knuckles