ludic/examples/lib/arena.ludic
Orkuncakilkaya 985f9ad8f2 Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete
Self-hosted compiler (selfhost/*.ludic), runtime, examples, editor tooling,
and docs. Phase 1 of the syntax-redesign cohesion pass has landed:
edge-system fix, signature-query, when-alias, and the documentation truth-pass.
Suite green (14/14), C-free bootstrap fixpoint holds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-27 15:15:35 +03:00

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# ============================================================================
# arena.ludic — a game that links the Ludic shared library next to it.
#
# ludicc examples/lib/combat.ludic --shared -o build/libcombat.dylib
# ludicc examples/lib/arena.ludic -o build/arena -Lbuild -lcombat
#
# `extern fn` binds a name to a symbol resolved at link time. The library the
# symbols come from happens to be written in Ludic, but nothing here depends on
# that: the same declaration binds a C, Rust or Zig library just as well. This
# is how Ludic reaches the outside world without a C shim.
# ============================================================================
game Arena {
extern fn damage(attack: int, armour: int, roll: int) -> int = "damage"
extern fn hits_to_kill(hp: int, attack: int, armour: int) -> int = "hits_to_kill"
extern fn xp_for(level: int, kills: int) -> int = "xp_for"
component Fighter { hp: int = 30, attack: int = 9, armour: int = 2 }
system Boot phase Start {
spawn Hero { Fighter = { hp = 40, attack = 12, armour = 3 } }
spawn Orc { Fighter = { hp = 24, attack = 7, armour = 1 } }
}
system Fight phase Update {
for (f) in query [Fighter] {
print_int(damage(f.attack, f.armour, 0))
print_int(damage(f.attack, f.armour, 20))
print_int(hits_to_kill(f.hp, f.attack, f.armour))
}
print_int(xp_for(3, 4))
quit()
}
}