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Add multi-cell box shapes with per-cell collision

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Generate 1x2/2x1 dominoes, 2x2 (square + 4 L-trominoes) and all
connected 3x2/2x3 polyominoes as R/G/B channel masks, reusing the
distance-based concentric-ring format that reproduces box_r/g/b
exactly. Outer silhouette keeps a 1px margin; connected cells stay
seamless. Each shape ships a {class="moveable"} .meta so getAllAssets
auto-registers it as a GenericMoveable.

Wire the occupied-cell shape (precomputed once by getAllAssets via
getCellsFromSprite) through to entities: createEntity now passes the
cached cells as cellShape, so an L/U/notched block collides on its real
cells and its gaps read as empty space. Fix the per-colour cache that
was reset every channel so only one colour survived.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Your Name 2026-08-11 12:42:33 -04:00
parent 5b7ea9ec20
commit d96f57efb6
154 changed files with 194 additions and 9 deletions
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9
room.lua
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@ -570,10 +570,15 @@ function Room:createEntity(class, color, x, y)
self:setActiveColor(color, true)
elseif props and props.sprites and props.sprites[color] then
local sprite = loadSprite(props.sprites[color])
-- Reuse the cell shape precomputed by getAllAssets (nil/empty falls back
-- to the full sprite rectangle inside Entity), so an L/U/notched block
-- collides on its real cells and its gaps read as empty space.
local cellShape = props.cells and props.cells[color]
if cellShape and #cellShape == 0 then cellShape = nil end
if behavior == "moveable" then
entity = GenericMoveable:new(x, y, color, sprite, class)
entity = GenericMoveable:new(x, y, color, sprite, class, cellShape)
else
entity = GenericUnmoveable:new(x, y, color, sprite)
entity = GenericUnmoveable:new(x, y, color, sprite, cellShape)
end
self:registerCollidable(entity, {color})
end