Sovereignty/jecs
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Kalrnlo 2024-05-13 09:26:16 -04:00 committed by GitHub
parent d6b6caf07a
commit 5219ace134
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GPG key ID: B5690EEEBB952194
1 changed files with 14 additions and 18 deletions
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32
lib/init.lua
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@ -75,30 +75,27 @@ local function addFlags(isPair: boolean)
return typeFlags
end
local function newId(source: number, target: number)
local e = source * 2^28 + target * ECS_ID_FLAGS_MASK
return e
local function newId(source: number, target: number): number
return ((source * 2^28) + target) * ECS_ID_FLAGS_MASK
end
local function ECS_IS_PAIR(e: number)
return (e % 2^4) // FLAGS_PAIR ~= 0
local function ECS_IS_PAIR(e: number): boolean
return ( (e % 2^4) // FLAGS_PAIR ) ~= 0
end
function separate(entity: number)
local _typeFlags = entity % 0x10
entity //= ECS_ID_FLAGS_MASK
return entity // ECS_ENTITY_MASK, entity % ECS_GENERATION_MASK, _typeFlags
local function separate(entity: number): (number, number, number)
local type_flags = entity % 0x10
local entity = entity // ECS_ID_FLAGS_MASK
return new_entity // ECS_ENTITY_MASK, new_entity % ECS_GENERATION_MASK, type_flags
end
-- HIGH 24 bits LOW 24 bits
local function ECS_GENERATION(e: i53)
e //= 0x10
return e % ECS_GENERATION_MASK
return (e // 0x10) % ECS_GENERATION_MASK
end
local function ECS_ID(e: i53)
e //= 0x10
return e // ECS_ENTITY_MASK
return (e // 0x10) // ECS_ENTITY_MASK
end
local function ECS_GENERATION_INC(e: i53)
@ -109,15 +106,13 @@ end
-- gets the high ID
local function ECS_PAIR_FIRST(entity: i53): i24
entity //= 0x10
local first = entity % ECS_ENTITY_MASK
return first
return (entity // 0x10) % ECS_ENTITY_MASK
end
-- gets the low ID
local ECS_PAIR_SECOND = ECS_ID
local function ECS_PAIR(first: number, second: number)
local function ECS_PAIR(first: number, second: number):
local target = WILDCARD
local relation
@ -132,6 +127,7 @@ local function ECS_PAIR(first: number, second: number)
return newId(
ECS_PAIR_SECOND(relation), target) + addFlags(--[[isPair]] true)
)
end
local function getAlive(entityIndex: EntityIndex, id: i53)
@ -147,7 +143,7 @@ local function ecs_get_target(entityIndex, e)
return getAlive(entityIndex, ECS_PAIR_SECOND(e))
end
local function nextEntityId(entityIndex, index: i24)
local function nextEntityId(entityIndex, index: i24): i53
local id = newId(index, 0)
entityIndex.sparse[id] = {
dense = index