82 lines
2.4 KiB
D
82 lines
2.4 KiB
D
module ecs.system;
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import ecs.entity;
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import ecs.manager;
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/************************************************************************************************************************
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*System contain data required to proper glue EntityManager with Systems.
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*/
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struct System
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{
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/************************************************************************************************************************
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*Check if system is enabled.
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*/
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export bool enabled()
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{
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return m_enabled;
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}
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/************************************************************************************************************************
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*Enable system. If actually it is enabled function do nothing.
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*/
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export void enable()
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{
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if (!m_enabled && m_enable)
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m_enable(m_system_pointer);
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m_enabled = true;
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}
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/************************************************************************************************************************
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*Disable system. If actually it is disabled function do nothing.
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*/
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export void disable()
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{
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if (m_enabled && m_disable)
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m_disable(m_system_pointer);
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m_enabled = false;
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}
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/************************************************************************************************************************
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*Get system priority.
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*/
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export int priority()
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{
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return m_priority;
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}
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package:
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///should system update and catch events?
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bool m_enabled = false;
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///system priority
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int m_priority;
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///pointer to system implementation
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void* m_system_pointer;
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///system name
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const (char)[] name;
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///required components
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ushort[] m_components;
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///absent components
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ushort[] m_absent_components;
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///optional components
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ushort[] m_optional_components;
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//void function(ref EntityManager.CallData data) m_update;
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void* m_update; ///workaroud for DMD bug with upper line
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void function(void* system_pointer) m_enable;
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void function(void* system_pointer) m_disable;
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void function(void* system_pointer) m_create;
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void function(void* system_pointer) m_destroy;
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void function(void* system_pointer) m_begin;
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void function(void* system_pointer) m_end;
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//void function(ref EntityManager.CallData data) m_initialize;
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//void function(ref EntityManager.CallData data) m_deinitilize;
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void* m_initialize;
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void* m_deinitilize;
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}
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