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feat(render): #85 engine sprite-render system + deprecate bare draw_sprite
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The engine already auto-ticks SpriteAnim/Motion; it now auto-DRAWS too.
Declare a Sprite component (id/offx/offy/scale/flip/tint/hidden, shipped from
ludic.core) on an entity with a Position and esys_sprite draws it each Render
frame — no hand-written Render handler, no hand animation (adds the SpriteAnim
frame when present). Registered on the engine-system registry (Render) and
spliced only when the game declares Sprite, so a game that never declares it
compiles byte-identically; opt out by omitting Sprite or `disable system
esys_sprite`.

Deprecates the bare draw_sprite/draw_sprite_scaled globals in favour of
Screen.sprite/Screen.sprite_scaled: a direct bare call emits a one-time
compile-time deprecation note (the bare form still lowers, since Screen.sprite
uses it); migrates the chronorift demo to the namespaced calls (golden render
byte-identical).

Example sprite_render (pixel-readback: engine draws the sprite, respects
hidden). Full suite 109/0, goldens byte-identical, fixpoint holds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-02 07:20:13 +03:00
parent d9287d6b1d
commit 57b8747c31
11 changed files with 18366 additions and 18002 deletions
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20
examples/games/chronorift/draw.ludic
View file

@ -24,19 +24,19 @@ handler Draw phase Render {
',', 'S', 'B' => base = SPR_FLOOR
'=' => base = SPR_WALL
}
draw_sprite(base, sx, sy)
if c == 'T' { draw_sprite(SPR_TREE, sx, sy) }
if c == '#' { draw_sprite(SPR_TREE, sx, sy) }
if c == 'H' { draw_sprite(SPR_HOUSE, sx, sy) }
if c == 'D' { draw_sprite(SPR_DOOR, sx, sy) }
if c == 'S' { draw_sprite(SPR_DOOR, sx, sy) }
Screen.sprite(base, sx, sy)
if c == 'T' { Screen.sprite(SPR_TREE, sx, sy) }
if c == '#' { Screen.sprite(SPR_TREE, sx, sy) }
if c == 'H' { Screen.sprite(SPR_HOUSE, sx, sy) }
if c == 'D' { Screen.sprite(SPR_DOOR, sx, sy) }
if c == 'S' { Screen.sprite(SPR_DOOR, sx, sy) }
if c == 'B' {
if boss_down == 0 { draw_sprite(SPR_BOSS, sx, sy) }
if boss_down == 0 { Screen.sprite(SPR_BOSS, sx, sy) }
}
}
}
for (p, a) in query [Pos, Actor] {
draw_sprite(a.kind, p.x * 16 - cx, p.y * 16 - cy)
Screen.sprite(a.kind, p.x * 16 - cx, p.y * 16 - cy)
}
for (h, pp) in query [Stats, Party] {
if pp.slot == 0 {
@ -59,7 +59,7 @@ handler Draw phase Render {
for (e, a) in query [Stats, Actor, {Enemy}] {
var bs = 5
if enemy_type == 2 { bs = 7 }
draw_sprite_scaled(a.kind, 160 - bs * 8, 44, bs)
Screen.sprite_scaled(a.kind, 160 - bs * 8, 44, bs)
Screen.draw_text(100, 20, enemy_name(enemy_type), 0xffffff, 1)
Screen.fill_rectangle(100, 30, 120, 8, 0x401018)
Screen.fill_rectangle(100, 30, e.hp * 120 / e.maxhp, 8, 0xe04040)
@ -75,7 +75,7 @@ handler Draw phase Render {
var spr = 5
if pt.slot == 1 { spr = 9 }
if pt.slot == act { Screen.draw_rectangle(hx - 2, 180, 88, 44, 0xffff00) }
draw_sprite_scaled(spr, hx, 184, 2)
Screen.sprite_scaled(spr, hx, 184, 2)
if pt.slot == 0 { Screen.draw_text(hx + 36, 182, "KNIGHT", 0xffe08a, 1) }
if pt.slot == 1 { Screen.draw_text(hx + 36, 182, "MAGE", 0xc9a0ff, 1) }
Screen.draw_text(hx + 36, 195, "HP", 0x88ff88, 1)