Sovereignty/jecs
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Ukendio 2024-08-31 05:02:09 +02:00
parent f91ab4049f
commit d6179637af
1 changed files with 23 additions and 43 deletions
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66
src/init.luau
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@ -77,10 +77,12 @@ local ECS_ID_FLAGS_MASK = 0x10
local ECS_ENTITY_MASK = bit32.lshift(1, 24)
local ECS_GENERATION_MASK = bit32.lshift(1, 16)
local ECS_ID_DELETE = 0b0001
local ECS_ID_HAS_HOOKS = 0b0010
local ECS_ID_IS_TAG = 0b0100
local ECS_ID_MASK = 0b0000
local ECS_ID_DELETE = 0b0000_0001
local ECS_ID_IS_TAG = 0b0000_0010
local ECS_ID_HAS_ON_ADD = 0b0000_0100
local ECS_ID_HAS_ON_SET = 0b0000_1000
local ECS_ID_HAS_ON_REMOVE = 0b0001_0000
local ECS_ID_MASK = 0b0000_0000
local NULL_ARRAY = table.freeze({})
@ -379,28 +381,6 @@ local function world_has(world: World, entity: number, ...: i53): boolean
return true
end
local function world_has_any(world: World, entity: number, ...: i53): boolean
local record = world.entityIndex.sparse[entity]
if not record then
return false
end
local archetype = record.archetype
if not archetype then
return false
end
local records = archetype.records
for i = 1, select("#", ...) do
if records[select(i, ...)] then
return true
end
end
return false
end
-- TODO:
-- should have an additional `nth` parameter which selects the nth target
-- this is important when an entity can have multiple relationships with the same target
@ -437,23 +417,23 @@ local function id_record_ensure(world: World, id: number): ArchetypeMap
local cleanup_policy = world_target(world, relation, EcsOnDelete)
local cleanup_policy_target = world_target(world, relation, EcsOnDeleteTarget)
local has_delete = false
if cleanup_policy == EcsDelete or cleanup_policy_target == EcsDelete then
flags = bit32.bor(flags, ECS_ID_DELETE)
has_delete = true
end
if world_has_any(world, relation,
EcsOnAdd, EcsOnSet, EcsOnRemove)
then
flags = bit32.bor(flags, ECS_ID_HAS_HOOKS)
end
local on_add, on_set, on_remove = world_get(world, relation, EcsOnAdd, EcsOnSet, EcsOnRemove)
if world_has_one_inline(world, id, EcsTag) then
flags = bit32.bor(flags, ECS_ID_IS_TAG)
end
local has_tag = world_has_one_inline(world, id, EcsTag)
-- local FLAG2 = 0b0010
-- local FLAG3 = 0b0100
-- local FLAG4 = 0b1000
flags = bit32.bor(flags,
if on_add then ECS_ID_HAS_ON_ADD else 0,
if on_remove then ECS_ID_HAS_ON_REMOVE else 0,
if on_set then ECS_ID_HAS_ON_SET else 0,
if has_delete then ECS_ID_DELETE else 0,
if has_tag then ECS_ID_IS_TAG else 0
)
idr = {
size = 0,
@ -634,9 +614,9 @@ local function world_add(world: World, entity: i53, id: i53)
end
local idr = world.componentIndex[id]
local has_hooks = bit32.band(idr.flags, ECS_ID_HAS_HOOKS) ~= 0
local has_on_add = bit32.band(idr.flags, ECS_ID_HAS_ON_ADD) ~= 0
if has_hooks then
if has_on_add then
invoke_hook(world, EcsOnAdd, id, entity)
end
end
@ -650,7 +630,7 @@ local function world_set(world: World, entity: i53, id: i53, data: unknown)
local idr = world.componentIndex[id]
local flags = idr.flags
local is_tag = bit32.band(flags, ECS_ID_IS_TAG) ~= 0
local has_hooks = bit32.band(flags, ECS_ID_HAS_HOOKS) ~= 0
local has_on_set = bit32.band(idr.flags, ECS_ID_HAS_ON_SET) ~= 0
if from == to then
if is_tag then
@ -660,7 +640,7 @@ local function world_set(world: World, entity: i53, id: i53, data: unknown)
-- and just set the data directly.
local tr = to.records[id]
from.columns[tr.column][record.row] = data
if has_hooks then
if has_on_set then
invoke_hook(world, EcsOnSet, id, entity, data)
end
@ -683,7 +663,7 @@ local function world_set(world: World, entity: i53, id: i53, data: unknown)
if is_tag then
return
end
if not has_hooks then
if not has_on_set then
column[record.row] = data
else
invoke_hook(world, EcsOnAdd, id, entity, data)