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feat(engine): Tiled P5 — image/group layers, iso/hex/staggered coords, Wang (#73)
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- Image layers: <imagelayer> renders with parallax + optional repeatx/repeaty
  tiling across the view; the image loads relative to the map file. Group layers
  flatten at build (children render in file order); layer offset/opacity/tint are
  queryable (Tiled.layer_kind / layer_offsetx / layer_offsety / layer_opacity /
  layer_tint), a group's tint applying recursively.
- Orientation transforms: Tiled.cell_x / Tiled.cell_y compute a tile cell's
  screen position for orthogonal, isometric ((x-y)*tw/2, (x+y)*th/2), staggered,
  and hexagonal (rows step by (tileh+hexsidelength)/2, alternate rows shoved per
  staggerindex) — the tile draw now places cells through them.
- Wang: exported Wang-set GIDs are ordinary GIDs and resolve through the standard
  GID resolver; the terrain-corner authoring concept is editor-side (design cut).

Proven by library/tiled_p5.ludic (14 assertions) over the real
isometric_grass_and_water.tmx (iso + Wang) and hexagonal-mini.tmx, plus a
hand-authored image+group fixture. x test: 96 passed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-01 15:14:36 +03:00
parent b8c71d2a8e
commit 78a5719fae
15 changed files with 5829 additions and 5007 deletions
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8
selfhost/backend/emit_call.ludic
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@ -641,6 +641,14 @@ function emit_ns_call(ns: pointer, meth: pointer, e: Node) -> Val {
if (meth == "template") { bare = "tiled_read_template"; push(labels, "path") }
if (meth == "spawn") { bare = "tiled_spawn_object"; push(labels, "map"); push(labels, "object"); push(labels, "model") }
if (meth == "spawn_layer") { bare = "tiled_spawn_layer"; push(labels, "map"); push(labels, "layer"); push(labels, "model") }
# P5 (#73): orientation coords + image/group-layer accessors
if (meth == "cell_x") { bare = "tmap_cell_sx"; push(labels, "map"); push(labels, "x"); push(labels, "y") }
if (meth == "cell_y") { bare = "tmap_cell_sy"; push(labels, "map"); push(labels, "x"); push(labels, "y") }
if (meth == "layer_kind") { bare = "tmap_layer_kind"; push(labels, "map"); push(labels, "layer") }
if (meth == "layer_opacity"){ bare = "tmap_layer_opacity"; push(labels, "map"); push(labels, "layer") }
if (meth == "layer_tint") { bare = "tmap_layer_tint"; push(labels, "map"); push(labels, "layer") }
if (meth == "layer_offsetx"){ bare = "tmap_layer_offsetx"; push(labels, "map"); push(labels, "layer") }
if (meth == "layer_offsety"){ bare = "tmap_layer_offsety"; push(labels, "map"); push(labels, "layer") }
}
# #62: a package-provided namespace (declared with @Namespace(Foo)) that none
# of the hardcoded core blocks matched — alias Foo.method to the bare function