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Remove parallel tables that hold System data in favor of one table.
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bakpakin
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dc69636f72
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6531332ea8
91
tiny.lua
91
tiny.lua
@ -182,20 +182,12 @@ function tiny.world(...)
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-- Number of Entities in World.
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entityCount = 0,
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-- List of Systems
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-- List of System Data. A data element is a table with 4
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-- keys: system, indices, entities, and active.
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systems = {},
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-- Table of Systems to whether or not they are active.
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activeSystems = {},
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-- Table of Systems to System Indices
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systemIndices = {},
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-- Table of Systems to Lists of matching Entities
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systemEntities = {},
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-- Table of Systems to Tables of Entities to their Indices
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systemEntityIndices = {}
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systemIndices = {}
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}
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tiny_add(ret, ...)
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@ -311,37 +303,27 @@ function tiny.manageSystems(world)
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local systemIndices = world.systemIndices
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local entities = world.entities
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local systems = world.systems
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local activeSystems = world.activeSystems
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local systemEntities = world.systemEntities
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local systemEntityIndices = world.systemEntityIndices
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local system, index, filter, entityList, entityIndices, entityIndex, onRemove, onAdd
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local system, systemData, index, filter, entityList, entityIndices, entityIndex, onRemove, onAdd
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-- Remove Systems
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for i = 1, #s2r do
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system = s2r[i]
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index = systemIndices[system]
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if index then
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systemData = systems[index]
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onRemove = system.onRemove
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if onRemove then
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entityList = systemEntities[system]
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entityList = systemData.entities
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for j = 1, #entityList do
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onRemove(system, entityList[j])
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end
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end
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for j = index + 1, #systems do
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systemIndices[systems[j]] = j - 1
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end
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systemIndices[system] = nil
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activeSystems[system] = nil
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systemEntities[system] = nil
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systemEntityIndices[system] = nil
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tremove(systems, index)
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for j = index, #systems do
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systemIndices[systems[j].system] = j
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end
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end
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s2r[i] = nil
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end
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@ -350,15 +332,12 @@ function tiny.manageSystems(world)
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for i = 1, #s2a do
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system = s2a[i]
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if not systemIndices[system] then
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entityList = {}
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entityIndices = {}
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systemData = { system = system, entities = entityList, indices = entityIndices, active = true }
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index = #systems + 1
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systemIndices[system] = index
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systems[index] = system
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activeSystems[system] = true
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entityList = {}
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systemEntities[system] = entityList
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entityIndices = {}
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systemEntityIndices[system] = entityIndices
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systems[index] = systemData
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-- Try to add Entities
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onAdd = system.onAdd
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@ -394,13 +373,10 @@ function tiny.manageEntities(world)
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return
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end
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local entityStatus = world.entityStatus
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local systemEntities = world.systemEntities
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local entities = world.entities
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local systems = world.systems
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local entityCount = world.entityCount
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local systemEntityIndices = world.systemEntityIndices
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local entity, system, index, onRemove, onAdd, ses, seis, filter, tmpEntity
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local entity, system, systemData, index, onRemove, onAdd, ses, seis, filter, tmpEntity
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-- Remove Entities
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for i = 1, #e2r do
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@ -409,9 +385,10 @@ function tiny.manageEntities(world)
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entities[entity] = nil
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for j = 1, #systems do
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system = systems[j]
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ses = systemEntities[system]
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seis = systemEntityIndices[system]
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systemData = systems[j]
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system = systemData.system
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ses = systemData.entities
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seis = systemData.indices
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index = seis[entity]
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if index then
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@ -441,9 +418,10 @@ function tiny.manageEntities(world)
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entities[entity] = true
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for j = 1, #systems do
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system = systems[j]
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ses = systemEntities[system]
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seis = systemEntityIndices[system]
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systemData = systems[j]
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system = systemData.system
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ses = systemData.entities
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seis = systemData.indices
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filter = system.filter
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if filter and filter(system, entity) then
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index = #ses + 1
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@ -478,16 +456,14 @@ function tiny.update(world, dt)
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tiny_manageSystems(world)
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tiny_manageEntities(world)
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local activeSystems = world.activeSystems
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local systems = world.systems
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local systemEntities = world.systemEntities
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local system
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local systemData
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-- Iterate through Systems IN ORDER
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for i = 1, #systems do
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system = systems[i]
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if activeSystems[system] then
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system:update(systemEntities[system], dt)
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systemData = systems[i]
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if systemData.active then
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systemData.system:update(systemData.entities, dt)
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end
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end
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end
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@ -509,7 +485,7 @@ end
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function tiny.clearSystems(world)
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local systems = world.systems
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for i = #systems, 1, -1 do
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tiny_removeSystem(world, systems[i])
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tiny_removeSystem(world, systems[i].system)
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end
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end
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@ -543,12 +519,13 @@ function tiny.setSystemIndex(world, system, index)
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local systemIndices = world.systemIndices
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local oldIndex = systemIndices[system]
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local systems = world.systems
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local systemData = systems[oldIndex]
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tremove(systems, oldIndex)
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tinsert(systems, index, system)
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tinsert(systems, index, systemData)
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for i = oldIndex, index, index >= oldIndex and 1 or -1 do
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systemIndices[systems[i]] = i
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systemIndices[systems[i].system] = i
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end
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end
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@ -559,8 +536,8 @@ end
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-- World.
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function tiny.activate(world, ...)
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local args = {...}
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for _, obj in ipairs(args) do
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world.activeSystems[obj] = true
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for _, system in ipairs(args) do
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world.systems[world.systemIndices[system]].active = true
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end
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end
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@ -573,8 +550,8 @@ end
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-- World.
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function tiny.deactivate(world, ...)
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local args = {...}
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for _, obj in ipairs(args) do
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world.activeSystems[obj] = nil
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for _, system in ipairs(args) do
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world.systems[world.systemIndices[system]].active = false
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end
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end
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