System

System contain data required to proper glue EntityManager with Systems. System callbacks:

void onUpdate(EntitesData);
void onEnable() - called inside system.enable() function
void onDisable() - called inside system.disable() function
bool onBegin() - called inside manager.begin()
void onEnd() - called inside manager.end()
void onCreate() - called after registration inside registerSystem function
void onDestroy() - called during re-registration and inside manager destructor
void onAddEntity(EntitesData) - called for every entity which are assigned to system (by adding new entity or changing its components)
void onRemoveEntity(EntitiesData) - called for every entity removed from system update process
void onChangeEntity(EntitiesData) - called for every entity which components are changed but it was previously assigned to system
void handleEvent(Entity*, Event) - called for every event supported by system

struct System {

bool willExecute();

ushort id();

const(char)[] name();

bool isAlive();

void* ptr();

}

Members

Functions

destroy void destroy(): destory system. Dispose all data
destroySystemData void destroySystemData(): destroy all system data but keeps name which is used for case of system re-registration
disable void disable(): Disable system. If actually it is disabled function do nothing.
enable void enable(): Enable system. If actually it is enabled function do nothing.
enabled bool enabled(): Check if system is enabled.
id ushort id(): Get system id.
isAlive bool isAlive(): Return false if system was unregistered, true otherwise.
name const(char)[] name(): Get system name.
priority int priority(): Get system priority.
ptr void* ptr(): Return pointer to user side system object
willExecute bool willExecute(): Get if system will be executed during current frame. Should be checked after manager.begin(). Its value is setted as result of manager.onBegin() callback.

Structs

EventCaller struct EventCaller: Undocumented in source.

Variables

jobs EntityManager.Job[] jobs;: Undocumented in source.
m_add_entity void* m_add_entity;: Undocumented in source.
m_any_system_caller EntityManager.SystemCaller* m_any_system_caller;: Undocumented in source.
m_begin void* m_begin;: Undocumented in source.
m_change_entity void* m_change_entity;: Undocumented in source.
m_components ushort[] m_components;: required components
m_create void* m_create;: Undocumented in source.
m_deinitilize void* m_deinitilize;: Undocumented in source.
m_destroy void* m_destroy;: Undocumented in source.
m_disable void* m_disable;: Undocumented in source.
m_empty bool m_empty;: is system empty? Empty systems don't update entities, and is called once per update
m_enable void* m_enable;: Undocumented in source.
m_enabled bool m_enabled;: should system update and catch events?
m_end void* m_end;: Undocumented in source.
m_event_callers EventCaller[] m_event_callers;: Undocumented in source.
m_excluded_components ushort[] m_excluded_components;: excluded components
m_execute bool m_execute;: should system be executed in current update?
m_filter_entity void* m_filter_entity;: Undocumented in source.
m_id ushort m_id;: system id
m_initialize void* m_initialize;: Undocumented in source.
m_name char[] m_name;: system name
m_optional_components ushort[] m_optional_components;: optional components
m_pass int m_pass;: system pass index
m_priority int m_priority;: system priority
m_read_only_components ushort[] m_read_only_components;: Undocumented in source.
m_readonly_dependencies ushort[] m_readonly_dependencies;: Undocumented in source.
m_remove_entity void* m_remove_entity;: Undocumented in source.
m_system_pointer void* m_system_pointer;: pointer to system implementation
m_update void* m_update;: workaroud for DMD bug with upper line
m_update_delegate void delegate() m_update_delegate;: Undocumented in source.
m_writable_components ushort[] m_writable_components;: Undocumented in source.
m_writable_dependencies ushort[] m_writable_dependencies;: Undocumented in source.

System

Members

Functions

Structs

Variables

Meta

Source