workshopsoft/ludic
2
0
Fork 0
Code Issues Pull requests Projects Releases 26 Packages Wiki Activity Actions

examples: net_sync's raw buffer inside unsafe, now that a query's body is checked

Browse source 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-25 14:43:23 +03:00
parent 253d8d3632
commit 4919c9c2fc
1 changed files with 16 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

30
examples/networking/net_sync.ludic
View file

@ -21,20 +21,22 @@ program NetSync {
entry { entry {
spawn Player { Position { x: 3, y: 4 }, Health { hp: 50, max: 100 } } spawn Player { Position { x: 3, y: 4 }, Health { hp: 50, max: 100 } }
for (Position, Health) in query [Position, Health, {Player}] { unsafe { # a raw snapshot buffer on purpose: built with --unsafe (L7)
let e = self() for (Position, Health) in query [Position, Health, {Player}] {
let buf = bytes(64) let e = self()
print(sync_size(e)) # 12 = Position(x,y)=8 + Health.hp=4 let buf = bytes(64)
let n = serialize(e, buf) # snapshot the synced fields print(sync_size(e)) # 12 = Position(x,y)=8 + Health.hp=4
Position.x = 99 # mutate everything let n = serialize(e, buf) # snapshot the synced fields
Position.y = 88 Position.x = 99 # mutate everything
Health.hp = 7 Position.y = 88
Health.max = 999 # max is NOT synced Health.hp = 7
apply(e, buf, n) # restore from the snapshot Health.max = 999 # max is NOT synced
print(Position.x) # 3 — restored apply(e, buf, n) # restore from the snapshot
print(Position.y) # 4 — restored print(Position.x) # 3 — restored
print(Health.hp) # 50 — restored print(Position.y) # 4 — restored
print(Health.max) # 999 — kept (unsynced) print(Health.hp) # 50 — restored
print(Health.max) # 999 — kept (unsynced)
}
} }
} }
} }