Dynamic Objects

Sonic is a playable object in Sonic the Hedgehog, appearing in all playable stages in the standard game mode GM_Level. Given that everything in a standard level operates around Sonic, much of the changes, fixes, and modifications are going to be centered around this object and its subroutines.

It is a dynamic object, loaded at the start of every standard level in GM_Level. In Sonic 1 and 2, as well as earlier iterations of S1Fixed, it had the object index $01.

File: _incObj/-- Sonic.asm

Changes from Sonic 1

• Word-length obPriority pointer due to the new Priority Manager.
• Word-length obRespawnAddr added due to the S3K Object Manager.
• Removed from the Static Object Pointer List due to its dynamic nature.
• BUGFIX: The Sonic_Drowned routine was added for underwater handling fixes.

This object has no subtypes.

	x0	x1	x2	x3	x4	x5	x6	x7	x8	x9	xA	xB	xC	xD	xE	xF
0x	Render	Addr	Addr	Addr	Gfx	Gfx	Map	Map	Map	Map	XPos	XPos	XPos	XPos	YPos	YPos
1x	YPos	YPos	VelX	VelX	VelY	VelY	~	~	Height	Width	Priority	Priority	Frame	Anim	AniFrame	FrameTime
2x	Inertia	Inertia	Status	DispWid	Routine	~	Angle	~	WallJump*	WallJump*	AutoRollFlag+	~	~	~	DblJumpFlag*	DblJumpProp*
3x	Invuln	Invinc	Shoes	~	~	CtrlLock**	FrontAngle	RearAngle	OnWheel	Status2nd*	RestartTimer	RestartTimer	Jumping	LRLock	PlatformAddr	PlatformAddr

• (+) This is the default function of this RAM byte, but also serves as the SpinDashFlag, if the relevant elective mod is enabled.
• (*) These OST variables are only used if certain elective mods are active.
• (**) This OST variable was previously a global RAM variable.

• Art: _artunc/Sonic.unc (2,156 tiles; Uncompressed)
• Sprite Mappings: _maps/Sonic.asm
• DPLC Script: _maps/Sonic - DPLCs.asm
• VRAM Location: ArtTile_Sonic ($780)
• Animation Script: _anim/Sonic.asm

• Obj01 - Sonic
• Obj02 - Tails

• Obj_Sonic - Sonic
• Obj_Tails - Tails
• Obj_Knuckles - Knuckles
• Obj_Sonic2P - Sonic (or Knuckles) in Competition Mode
• Obj_Tails2P - Tails in Competition Mode