ludic/examples/scenes.ludic
Orkuncakilkaya e9c15cc620 Phase 7e: polymorphic print(x) + str(x) (retire print_int/print_str)
One `print` instead of two C-style names: `print(x)` writes an int OR a string
followed by a newline, dispatching on the operand type (int -> %d, string ->
%s). `print(int)` emits byte-identically to the old print_int, so every existing
call and every smoke-test output is unchanged.

print_str was only ever the raw IR-to-stdout dump in ir_flush (no newline), which
is not "printing a line" — so it now uses file_write to a new file_stdout()
stream, keeping the emitted IR byte-for-byte identical. That frees `print` to
have consistent always-newline semantics.

Two reseeds: (A) add print + str + file_stdout keeping the intrinsics; (B)
migrate the 61 print_int calls to print, ir_flush to file_write(file_stdout()),
and delete print_int/print_str (+ the now-dead @.fmt_str). str(x) (the
interpolation converter from 7d) is now also a documented standalone builtin.

Vocabulary: print/str/file_stdout in, print_int/print_str out (ludic_syntax.h,
grammar, LudicTokens.kt). LANGUAGE.md updated. Reseeded (22551 lines); C-free
fixpoint holds; goldens identical; 18/18; vocab + doc-fences clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-28 01:22:38 +03:00

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# ⚠️ NOT YET IMPLEMENTED by the self-hosted compiler. `scene` / `layer` /
# `on enter` / `on exit` have no parser support today, so this file does NOT
# compile with build/ludicc — it is a design sketch of the intended syntax (see
# LANGUAGE.md §"Scenes & layers"). It is deliberately excluded from test.sh.
# Games that need scene-like states use a mode register + `machine` today, as
# examples/chronorift does.
program SceneDemo {
const R_N: int = 0
handler Boot phase Start { set_reg(R_N, 0); print(1000) }
scene Title start {
on enter { print(1) }
on exit { print(2) }
layer Main {
handler Tick phase Update {
set_reg(R_N, reg(R_N) + 1)
print(100 + reg(R_N))
if reg(R_N) >= 2 { become Play }
}
}
}
scene Play {
on enter { print(3); set_reg(R_N, 0) }
on exit { print(4) }
layer World {
handler Step phase Update {
set_reg(R_N, reg(R_N) + 1)
print(200 + reg(R_N))
if reg(R_N) >= 2 { quit() }
}
}
layer Hud {
handler Draw phase Render { print(900) }
}
}
}