Shield

Dynamic Objects

The Shield object is an object in Sonic the Hedgehog, appearing in all playable stages in the standard game mode GM_Level, along with Sonic. It is spawned when Sonic breaks open a monitor containing the shield icon. The Shield makes use of dynamic art loading via UltraDMAQueue, to load Shield art without taking up too much memory in VRAM. This is particularly useful if you have the S3K Shields elective mod enabled. It should be noted that, with said mod, this object holds code for all included variations of the shield, along with their sub-objects:

• Blue Shield
• Insta-Shield
• Flame Shield
• Bubble Shield
• Lightning Shield
• Flame Shield Dissipation
• Lightning Shield Spark
• Lightning Shield Destroy (Causes the water flash)

Code

File: _incObj/-- Shield.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.
• Its art is dynamically loaded with DPLCs via UltraDMAQueue.
• BUGFIX: The object's sprites now appear correctly when Sonic is balancing.
• BUGFIX: The object's sprites now appear correctly when Sonic is moved by certain objects.
• ELECTIVE MOD: The object has added routines for the S3K Shields.

Subtypes

This object has no subtypes.

Object Status Table

	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	~	~	~	~	~	~	~	~	Priority	Priority	Frame	~	~	~
2x	~	~	~	DispWid	~	~	~	~	~	~	~	~	~	~	~	~
3x	~	~	~	~	~	~	~	~	~	~	~	~	~	~	~	~