8 #define NULL (null_entity)
14 /** Location entity was spawned from in source */
15 .string sourceLocFile;
18 entity __spawn(string _classname, string _sourceFile, int _sourceLine)
20 entity this = _spawn();
21 this.classname = _classname;
22 this.sourceLocFile = _sourceFile;
23 this.sourceLocLine = _sourceLine;
28 #define entityclass(...) EVAL(OVERLOAD(entityclass, __VA_ARGS__))
29 #define entityclass_1(name) entityclass_2(name, Object)
30 #ifndef QCC_SUPPORT_ENTITYCLASS
31 #define entityclass_2(name, base) typedef entity name
33 #define new(class) __spawn( #class, __FILE__, __LINE__)
35 #define entityclass_2(name, base) entityclass name : base {}
36 #define class(name) [[class(name)]]
37 #define new(class) ((class) __spawn( #class, __FILE__, __LINE__))
39 #define spawn() new(entity)
41 // Classes have a `spawn##cname(entity)` constructor
42 // The parameter is used across [[accumulate]] functions
44 // Macros to hide this implementation detail:
46 #define NEW(cname, ...) \
47 OVERLOAD(spawn##cname, new(cname),##__VA_ARGS__)
49 #define CONSTRUCT(cname, ...) \
50 OVERLOAD(spawn##cname, this,##__VA_ARGS__)
52 #define NEW_(cname, ...) \
53 OVERLOAD_(spawn##cname, __VA_ARGS__)
54 #define NEW(cname, ...) \
55 NEW_(cname, new(cname),##__VA_ARGS__)(new(cname),##__VA_ARGS__)
57 #define CONSTRUCT_(cname, ...) \
58 OVERLOAD_(spawn##cname, __VA_ARGS__)
59 #define CONSTRUCT(cname, ...) \
60 CONSTRUCT_(cname, this,##__VA_ARGS__)(this,##__VA_ARGS__)
63 #define CONSTRUCTOR(cname, ...) \
64 cname OVERLOAD(spawn##cname, cname this, __VA_ARGS__) \
68 [[accumulate]] cname OVERLOAD(spawn##cname, cname this, __VA_ARGS__)
73 void RegisterClasses() {}
74 STATIC_INIT(RegisterClasses)
79 #define VTBL(cname, base) \
81 entity cname##_vtbl; \
82 void cname##_vtbl_init() \
84 cname e = new(vtbl); \
85 spawn##cname##_static(e); \
86 e.vtblname = #cname; \
87 /* Top level objects refer to themselves */ \
88 e.vtblbase = base##_vtbl ? base##_vtbl : e; \
91 ACCUMULATE_FUNCTION(RegisterClasses, cname##_vtbl_init)
93 #define INIT_STATIC(cname) [[accumulate]] void spawn##cname##_static(cname this)
94 #define INIT(cname) [[accumulate]] cname spawn##cname##_1(cname this)
96 #define CLASS(cname, base) \
97 entityclass(cname, base); \
98 class(cname).bool instanceOf##cname; \
104 copyentity(cname##_vtbl, this); \
107 spawn##base##_static(this); \
108 this.instanceOf##cname = true; \
112 /* Only statically initialize the current class, it contains everything it inherits */ \
113 if (cname##_vtbl.vtblname == this.classname) \
115 spawn##cname##_static(this); \
116 this.classname = #cname; \
117 this.vtblname = string_null; \
118 this.vtblbase = cname##_vtbl; \
120 spawn##base##_1(this); \
123 #define METHOD(cname, name, prototype) \
124 class(cname).prototype name; \
125 prototype cname##_##name; \
128 this.name = cname##_##name; \
130 prototype cname##_##name
132 #define ATTRIB(cname, name, type, val) \
133 class(cname).type name; \
139 #define ATTRIBARRAY(cname, name, type, cnt) \
140 class(cname).type name[cnt];
142 #define ENDCLASS(cname) \
148 #define SUPER(cname) (cname##_vtbl.vtblbase)
150 #define spawn_static(this)
151 #define spawn_1(this)
154 METHOD(Object, describe, string(entity this))
156 string s = _("No description");
157 if (cvar("developer"))
159 for (int i = 0, n = numentityfields(); i < n; ++i)
161 string value = getentityfieldstring(i, this);
162 if (value != "") s = sprintf("%s\n%s = %s", s, entityfieldname(i), value);
167 METHOD(Object, display, void(entity this, void(string name, string icon)returns))
169 returns(sprintf("entity %i", this), "nopreview_map");