66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
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// Inefficiency warning.
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// Will move frequently accessed properties (position, name, etc.) to native C++ primitives.
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// Just playing around with this idea, will probably keep it for at least some of the more exotic and/or user-defined properties.
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// TODO: Fix the silent failures of the conversion functions: need to work out what to do in these cases.
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// Mark Thompson mot20@cam.ac.uk / mark@wildfiregames.com
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#ifndef ENTITY_PROPERTIES_INCLUDED
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#define ENTITY_PROPERTIES_INCLUDED
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#include "CStr.h"
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#include "Vector3D.h"
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#include <hash_map>
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class CGenericProperty
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{
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public:
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enum EPropTypes
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{
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PROP_INTRINSIC = 256,
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PROP_INTEGER = 0,
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PROP_FLOAT,
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PROP_STRING,
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PROP_VECTOR,
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PROP_PTR,
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PROP_INTEGER_INTRINSIC = PROP_INTEGER | PROP_INTRINSIC,
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PROP_FLOAT_INTRINSIC = PROP_FLOAT | PROP_INTRINSIC,
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PROP_STRING_INTRINSIC = PROP_STRING | PROP_INTRINSIC,
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PROP_VECTOR_INTRINSIC = PROP_VECTOR | PROP_INTRINSIC
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};
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private:
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EPropTypes m_type;
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union
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{
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i32 m_integer;
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i32* m_integerptr;
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float m_float;
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float* m_floatptr;
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CStr* m_string;
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CVector3D* m_vector;
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void* m_ptr;
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};
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public:
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CGenericProperty(); // Create an integer property containing 0.
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CGenericProperty( i32 value ); // Create an integer property with a given value.
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CGenericProperty( i32* value ); // Create an integer property that points to the given variable.
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CGenericProperty( float value ); // Create a floating-point property with a given value.
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CGenericProperty( float* value ); // Create a floating-point property that points to the given variable.
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CGenericProperty( CStr& value ); // Create a string object property that's initialized to a copy of the given string.
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CGenericProperty( CStr* value ); // Create a string object property that points to the given variable.
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CGenericProperty( CVector3D& value ); // Create a vector object property that's initialized to a copy of the given vector.
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CGenericProperty( CVector3D* value ); // Create a vector object property that points to the given variable.
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CGenericProperty( void* value ); // Create a general property that points to the given value.
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~CGenericProperty();
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operator i32(); // Convert to an integer if possible (integer, float, some strings), otherwise returns 0.
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operator float(); // Convert to a float if possible (integer, float, some strings), otherwise returns 0.0f.
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operator CStr(); // Convert to a string if possible (all except generic pointer), otherwise returns CStr().
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operator CVector3D(); // If this property is a vector, returns that vector, otherwise returns CVector3D().
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operator void*(); // If this property is a generic pointer, returns that pointer, otherwise returns NULL.
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};
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#endif
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