Monster Struct Reference

Sprite state structure holding position, animation, and direction. More...

Public Attributes
u16	anim_delay
u16	anim_frame
u8	flipx
u16	gfx_frame
u8	state
s16	x
s16	y

Detailed Description

Sprite state structure holding position, animation, and direction.

Combines all per-sprite data into one struct. On the SNES, each OAM entry only stores position and tile number — animation state must be tracked separately in RAM and used to compute the correct tile each frame.

Member Data Documentation

anim_delay

u16 Monster::anim_delay

Frame counter for animation timing (counts up to ANIM_DELAY)

anim_frame

u16 Monster::anim_frame

Current frame index within the walk cycle (0 to FRAMES_PER_ANIMATION-1)

flipx

u8 Monster::flipx

Horizontal flip flag: 1 = mirror sprite for left-facing

gfx_frame

u16 Monster::gfx_frame

Current tile number to display in OAM

state

u8 Monster::state

Current direction (SpriteState enum value)

x

s16 Monster::x

y

s16 Monster::y

Screen position in pixels (signed for off-screen clamping)

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The documentation for this struct was generated from the following file:

• /home/runner/work/opensnes/opensnes/examples/graphics/sprites/animated_sprite/main.c