7 #define _R_MAP(r, max) AL_declare(r); STATIC_INIT(r) { AL_init(r, max, NULL, e); }
8 #define _R_GET(r, i) AL_gete(r, i)
9 #define _R_SET(r, i, e) AL_sete(r, i, e)
11 #define _R_MAP(r, max) entity r[max]
12 #define _R_GET(r, i) r[i]
13 #define _R_SET(r, i, e) r[i] = e
17 * Declare a new registry.
19 * Don't forget to call `REGISTER_REGISTRY`:
20 * REGISTER_REGISTRY(Foos)
22 #define REGISTRY(id, max) \
23 void Register##id() {} \
24 const int id##_MAX = max; \
25 noref entity id##_first, id##_last; \
26 _R_MAP(_##id, id##_MAX); \
28 entity _##id##_from(int i, entity null) { if (i >= 0 && i < id##_COUNT) { entity e = _R_GET(_##id, i); if (e) return e; } return null; }
30 REGISTRY(Registries, BITS(8))
32 /** registered item identifier */
33 .string registered_id;
36 * Register a new entity with a registry.
37 * Must be followed by a semicolon or a function body with a `this` parameter.
38 * Wrapper macros may perform actions after user initialization like so:
39 * #define REGISTER_FOO(id) \
40 * REGISTER(Foos, FOO, id, m_id, NEW(Foo)); \
41 * REGISTER_INIT_POST(FOO, id) { \
42 * print("Registering foo #", this.m_id + 1, "\n"); \
44 * REGISTER_INIT(FOO, id)
47 * @param registry The registry to add each entity to.
48 * @param ns Short for namespace, prefix for each global (ns##_##id)
49 * @param id The identifier of the current entity being registered
50 * @param fld The field to store the locally unique unique entity id
51 * @param inst An expression to create a new instance, invoked for every registration
53 #define REGISTER(...) EVAL(OVERLOAD(REGISTER, __VA_ARGS__))
54 #define REGISTER_5(registry, ns, id, fld, inst) REGISTER_4(registry, ns##_##id, fld, inst)
55 #define REGISTER_4(registry, id, fld, inst) \
57 REGISTER_INIT(id) {} \
58 REGISTER_INIT_POST(id) {} \
59 void Register_##id() \
61 if (registry##_COUNT >= registry##_MAX) LOG_FATALF("Registry capacity exceeded (%s)", ftos(registry##_MAX)); \
62 entity this = id = inst; \
63 this.registered_id = #id; \
64 this.fld = registry##_COUNT; \
65 _R_SET(_##registry, registry##_COUNT, this); \
67 if (!registry##_first) registry##_first = this; \
68 if (registry##_last) registry##_last.REGISTRY_NEXT = this; \
69 registry##_last = this; \
70 Register_##id##_init(this); \
71 Register_##id##_init_post(this); \
73 ACCUMULATE_FUNCTION(Register##registry, Register_##id) \
76 #define REGISTER_INIT(id) [[accumulate]] void Register_##id##_init(entity this)
77 #define REGISTER_INIT_POST(id) [[accumulate]] void Register_##id##_init_post(entity this)
79 /** internal next pointer */
80 #define REGISTRY_NEXT enemy
81 .entity REGISTRY_NEXT;
83 #define REGISTRY_SORT(...) EVAL(OVERLOAD(REGISTRY_SORT, __VA_ARGS__))
84 #define REGISTRY_SORT_1(id) REGISTRY_SORT_2(id, 0)
85 #define REGISTRY_SORT_2(id, skip) \
86 void _REGISTRY_SWAP_##id(int i, int j, entity pass) \
88 i += skip; j += skip; \
90 entity a = _R_GET(_##id, i), b = _R_GET(_##id, j); \
91 _R_SET(_##id, i, b); \
92 _R_SET(_##id, j, a); \
94 entity a_next = a.REGISTRY_NEXT, b_next = b.REGISTRY_NEXT; \
95 a.REGISTRY_NEXT = b_next; \
96 b.REGISTRY_NEXT = a_next; \
98 if (i == 0) id##_first = b; \
99 else _R_GET(_##id, i - 1).REGISTRY_NEXT = b; \
101 if (j == 0) id##_first = a; \
102 else _R_GET(_##id, j - 1).REGISTRY_NEXT = a; \
104 int _REGISTRY_CMP_##id(int i, int j, entity pass) \
106 i += skip; j += skip; \
107 string a = _R_GET(_##id, i).registered_id; \
108 string b = _R_GET(_##id, j).registered_id; \
109 return strcmp(a, b); \
111 STATIC_INIT(Registry_sort_##id) \
113 heapsort(id##_COUNT - (skip), _REGISTRY_SWAP_##id, _REGISTRY_CMP_##id, NULL); \
116 #define REGISTRY_HASH(id) Registry_hash_##id
118 [[accumulate]] void Registry_check(string r, string server) { }
119 [[accumulate]] void Registry_send_all() { }
122 void Registry_send(string id, string hash);
124 #define Registry_send(id, hash)
127 #define REGISTRY_CHECK(id) \
128 string REGISTRY_HASH(id); \
129 STATIC_INIT(Registry_check_##id) \
131 string algo = "SHA256"; \
134 FOREACH(id, true, LAMBDA(s = strcat(s, join, it.registered_id))); \
135 s = substring(s, strlen(join), -1); \
136 string h = REGISTRY_HASH(id) = strzone(digest_hex(algo, s)); \
137 LOG_TRACEF(#id ": %s\n[%s]\n", h, s); \
139 void Registry_check(string r, string sv) \
143 string cl = REGISTRY_HASH(id); \
146 LOG_FATALF("client/server mismatch (%s).\nCL: %s\nSV: %s\n", r, cl, sv); \
150 void Registry_send_all() { Registry_send(#id, REGISTRY_HASH(id)); } \
152 #define REGISTER_REGISTRY(...) EVAL(OVERLOAD(REGISTER_REGISTRY, __VA_ARGS__))
153 #define REGISTER_REGISTRY_1(id) REGISTER_REGISTRY_2(id, #id)
154 #define REGISTER_REGISTRY_2(id, str) \
155 ACCUMULATE_FUNCTION(__static_init, Register##id) \
156 CLASS(id##Registry, Object) \
157 ATTRIB(id##Registry, m_name, string, str) \
158 ATTRIB(id##Registry, REGISTRY_NEXT, entity, id##_first) \
159 ENDCLASS(id##Registry) \
160 REGISTER(Registries, REGISTRY, id, m_id, NEW(id##Registry));