daid / daid/EmptyEpsilon

[Feature] Allow arbitrary GuiContainers to be scrollable

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Dominant language
Lua
Stars
869
Forks
222
Avg merge
18h 33m
Merged PRs (30d)
1

Description

Scrolling elements are currently implemented at the GuiElement subclass level (i.e. GuiListbox, GuiScrollText). So is clipping. Implement clipping and scrolling as options for either the standard GuiContainer or as a GuiContainer subclass.

This might be accomplishable using glScissor, similar to how the radar is clipped, plus translation of the child elements on scroll events and storing and reapplying scroll offset on hide/show events.

Having scrolling GuiContainers within scrolling GuiContainers might require intersecting scissor areas.

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by reading the GuiContainer and GuiElement implementations, then compare the existing GuiListbox and GuiScrollText scrolling and the radar's glScissor clipping. Determine how scrolling and clipping should work for nested containers, including preserving offsets when hidden or shown. Done means arbitrary containers can scroll and nested clipping behaves correctly; the issue names no files or tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, lua
Domain
game-dev
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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