fix: apply initial keyframe immediately in Animate() to prevent frame overlap

[Copilot]

When multiple animations are started in quick succession, frames remain visible at their pre-animation anchor positions until the first OnUpdate tick. For entrance animations, this means all frames briefly sit at their final destinations simultaneously instead of being at their off-screen start positions.

Change

• Apply the first keyframe (progress=0) immediately at the end of Animate() via ApplyToFrame, so entrance animations move frames to their start positions (e.g., off-screen) synchronously rather than waiting for the next render tick.

-- After creating state and registering the animation:
local kf1 = def.keyframes[1]
ApplyToFrame(frame, state,
    GetProperty(kf1, "translateX"),
    GetProperty(kf1, "translateY"),
    GetProperty(kf1, "scale"),
    GetProperty(kf1, "alpha"))

This is a no-op for exit and attention animations since their first keyframe is identity (translateX/Y=0, scale=1, alpha=1). For entrance animations, it immediately positions the frame at its animation start point. Also eliminates the visual snap that previously occurred when delayed entrance animations transitioned from "visible at anchor" to "off-screen start position."

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• luarocks.org
  • Triggering command: /usr/bin/lua5.1 /usr/bin/lua5.1 /usr/bin/luarocks install luacheck (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

When 2 or more animations are started in quick succession. The frames can get stuck on to of each other.

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