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https://github.com/bakpakin/tiny-ecs.git
synced 2024-11-17 04:44:23 +00:00
Begin experimental option to not use caching.
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bakpakin
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cbf71d2cb2
commit
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@ -233,9 +233,11 @@ describe('tiny-ecs:', function()
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end)
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it("Remove Entities Multiple Times", function()
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assert.equals(3, world:getEntityCount())
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world:update(1)
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world:remove(entity1, entity2, entity3)
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world:update(2)
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assert.equals(0, world:getEntityCount())
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world:remove(entity1, entity2, entity3)
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world:update(2)
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assert.equals(2, world:getSystemCount())
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@ -270,12 +272,12 @@ describe('tiny-ecs:', function()
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it("Sorts Entities in Sorting Systems", function()
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local sortsys = tiny.sortedProcessingSystem()
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sortsys.filter = tiny.requireAll("vel")
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sortsys.filter = tiny.filter("vel|xform")
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function sortsys:compare(e1, e2)
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return e1.vel.x < e2.vel.x
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end
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world:add(sortsys)
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world:update(0)
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world:refresh()
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assert.equals(sortsys.entities[1], entity2)
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assert.equals(sortsys.entities[2], entity3)
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assert.equals(sortsys.entities[3], entity1)
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87
tiny.lua
87
tiny.lua
@ -23,13 +23,12 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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-- @author Calvin Rose
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-- @license MIT
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-- @copyright 2015
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local tiny = { _VERSION = "1.3-1" }
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local tiny = { _VERSION = "scm" }
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-- Local versions of standard lua functions
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local tinsert = table.insert
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local tremove = table.remove
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local tsort = table.sort
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local pairs = pairs
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local setmetatable = setmetatable
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local type = type
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local select = select
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@ -281,20 +280,31 @@ local function processingSystemUpdate(system, dt)
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end
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if process then
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local entities = system.entities
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local len = #entities
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for i = 1, len do
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if system.nocache then
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local entities = system.world.entityList
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local filter = system.filter
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if filter then
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for i = 1, #entities do
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local entity = entities[i]
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if filter(system, entity) then
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process(system, entity, dt)
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end
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end
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end
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else
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local entities = system.entities
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for i = 1, #entities do
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process(system, entities[i], dt)
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end
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end
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end
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if postProcess then
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postProcess(system, dt)
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end
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end
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-- Sorts Systems by a function system.sort(entity1, entity2) on modify.
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-- Sorts Systems by a function system.sortDelegate(entity1, entity2) on modify.
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local function sortedSystemOnModify(system, dt)
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local entities = system.entities
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local indices = system.indices
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@ -308,8 +318,7 @@ local function sortedSystemOnModify(system, dt)
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end
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tsort(entities, sortDelegate)
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for i = 1, #entities do
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local entity = entities[i]
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indices[entity] = i
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indices[entities[i]] = i
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end
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end
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@ -404,6 +413,9 @@ function tiny.world(...)
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-- Set of Entities
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entities = {},
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-- List of Entities
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entityList = {},
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-- Number of Entities in World
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entityCount = 0,
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@ -506,7 +518,7 @@ function tiny_manageSystems(world)
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world.systemsToAdd = {}
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world.systemsToRemove = {}
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local entities = world.entities
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local worldEntityList = world.entityList
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local systems = world.systems
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-- Remove Systems
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@ -514,7 +526,7 @@ function tiny_manageSystems(world)
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local system = s2r[i]
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local index = system.index
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local onRemove = system.onRemove
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if onRemove then
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if onRemove and not system.nocache then
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local entityList = system.entities
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for j = 1, #entityList do
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onRemove(system, entityList[j])
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@ -540,11 +552,11 @@ function tiny_manageSystems(world)
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-- Add Systems
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for i = 1, #s2a do
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local system = s2a[i]
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if systems[system.index] ~= system then
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local entityList = {}
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local entityIndices = {}
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system.entities = entityList
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system.indices = entityIndices
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if systems[system.index or 0] ~= system then
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if not system.nocache then
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system.entities = {}
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system.indices = {}
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end
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if system.active == nil then
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system.active = true
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end
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@ -559,10 +571,14 @@ function tiny_manageSystems(world)
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end
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-- Try to add Entities
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if not system.nocache then
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local entityList = system.entities
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local entityIndices = system.indices
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local onAdd = system.onAdd
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local filter = system.filter
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if filter then
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for entity in pairs(entities) do
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for j = 1, #worldEntityList do
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local entity = worldEntityList[j]
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if filter(system, entity) then
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local entityIndex = #entityList + 1
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entityList[entityIndex] = entity
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@ -574,6 +590,7 @@ function tiny_manageSystems(world)
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end
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end
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end
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end
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s2a[i] = nil
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end
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end
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@ -595,6 +612,7 @@ function tiny_manageEntities(world)
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world.entitiesToRemove = {}
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local entities = world.entities
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local entityList = world.entityList
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local systems = world.systems
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local entityCount = world.entityCount
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@ -604,6 +622,7 @@ function tiny_manageEntities(world)
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if entities[entity] then
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for j = 1, #systems do
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local system = systems[j]
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if not system.nocache then
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local ses = system.entities
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local seis = system.indices
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local index = seis[entity]
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@ -633,17 +652,27 @@ function tiny_manageEntities(world)
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end
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end
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end
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end
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e2c[i] = nil
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end
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-- Remove Entities
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for i = 1, #e2r do
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local entity = e2r[i]
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if entities[entity] then
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e2r[i] = nil
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local listIndex = entities[entity]
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if listIndex then
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-- Remove Entity from world state
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local lastEntity = entityList[#entityList]
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entities[lastEntity] = listIndex
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entities[entity] = nil
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entityList[listIndex] = lastEntity
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entityList[#entityList] = nil
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entityCount = entityCount - 1
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-- Remove from cached systems
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for j = 1, #systems do
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local system = systems[j]
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if not system.nocache then
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local ses = system.entities
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local seis = system.indices
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local index = seis[entity]
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@ -661,17 +690,20 @@ function tiny_manageEntities(world)
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end
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end
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end
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e2r[i] = nil
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end
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end
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-- Add Entities
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for i = 1, #e2a do
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local entity = e2a[i]
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if not entities[entity] then
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entities[entity] = true
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local listIndex = #entityList + 1
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entities[entity] = listIndex
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entityList[listIndex] = entity
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entityCount = entityCount + 1
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for j = 1, #systems do
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local system = systems[j]
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if not system.nocache then
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local ses = system.entities
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local seis = system.indices
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local filter = system.filter
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@ -687,6 +719,7 @@ function tiny_manageEntities(world)
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end
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end
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end
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end
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e2a[i] = nil
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end
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@ -700,6 +733,17 @@ end
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function tiny.refresh(world)
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tiny_manageSystems(world)
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tiny_manageEntities(world)
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local systems = world.systems
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for i = 1, #systems do
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local system = systems[i]
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if system.active then
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local onModify = system.onModify
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if onModify and system.modified then
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onModify(system, 0)
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end
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system.modified = false
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end
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end
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end
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--- Updates the World by dt (delta time). Takes an optional parameter, `filter`,
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@ -749,8 +793,9 @@ end
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--- Removes all Entities from the World.
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function tiny.clearEntities(world)
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for e in pairs(world.entities) do
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tiny_removeEntity(world, e)
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local el = world.entityList
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for i = 1, #el do
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tiny_removeEntity(world, el[i])
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end
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end
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