Cyth/Netvars.hpp at master · M-Tass/Cyth · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
#pragma once
#include <unordered_map>
#include <cctype>

template<typename chr>
struct is_char : std::integral_constant<bool, std::is_same_v<chr, char> || std::is_same_v<chr, wchar_t>>
{};

template<typename chr>
constexpr bool is_char_v = is_char<chr>::value;

namespace hash
{
	namespace detail
	{
		constexpr auto offset = 0x811C9DC5u, prime = 0x01000193u;
	}

	using hash_t = uint32_t;
	enum class type : uint8_t
	{
		fnv1,
		fnv1a
	};

	template<typename chr, class = std::enable_if_t<is_char_v<chr>>>
	constexpr hash_t fnv1(const chr* str)
	{
		hash_t hash = detail::offset;
		for (; *str; hash = (hash * detail::prime) ^ *str++);
		return hash;
	}

	template<typename chr, class = std::enable_if_t<is_char_v<chr>>>
	constexpr hash_t fnv1a(const chr* str)
	{
		hash_t hash = detail::offset;
		for (; *str; hash = (hash ^ *str++) * detail::prime);
		return hash;
	}

	namespace literals
	{
		constexpr auto operator"" _fnv1(const char* str, size_t)
		{
			return fnv1(str);
		}

		constexpr auto operator"" _fnv1(const wchar_t* str, size_t)
		{
			return fnv1(str);
		}

		constexpr auto operator"" _fnv1a(const char* str, size_t)
		{
			return fnv1a(str);
		}

		constexpr auto operator"" _fnv1a(const wchar_t* str, size_t)
		{
			return fnv1a(str);
		}
	}
}


namespace detail
{
	struct RecvProp;
	struct DVariant
	{
		union
		{
			float floating;
			long integer;
			char* string;
			void* data;
			float vector[3];
			int64_t int64;
		};

		int type;
	};

	struct CRecvProxyData
	{
		const RecvProp* prop;
		DVariant value;
		int element, object;
	};

	struct RecvTable
	{
		RecvProp* props;
		int       count;
		void*     decoder;
		char*     table;
		bool      initialized;
		bool      listed;
	};

	using recv_var_proxy_t = void(__cdecl*)(const CRecvProxyData*, void*, void*);

	struct RecvProp
	{
		char* name;
		int type;
		int flags;
		int size;
		bool listed;
		const void* data;
		RecvProp* array;
		void* length;
		recv_var_proxy_t proxy;
		void* table_proxy;
		RecvTable* table;
		int offset, stride, count;
		const char* parent;
	};

	struct ClientClass
	{
		void* create, *event;
		const char* name;
		RecvTable*  table;
		ClientClass* next;
		int id;
	};
}


using get_all_classes_t = detail::ClientClass*(__thiscall*)(void*);

namespace globals
{
	inline std::unordered_map<hash::hash_t, std::unordered_map<hash::hash_t, std::ptrdiff_t>> netvars;
}

namespace netvars
{
	inline void __fastcall store(const char* group, detail::RecvTable* table, std::ptrdiff_t offset = 0)
	{
		for (size_t i = 0; i < table->count; ++i)
		{
			auto prop = &table->props[i];

			if (!prop || std::isdigit(*prop->name))
				continue;

			auto child = prop->table;

			if (child && child->count)
				store(group, child, prop->offset);

			hash::hash_t hash = hash::fnv1a(group), name = hash::fnv1a(prop->name);

			if (globals::netvars[hash][name] <= 0 && 0 <= prop->type && prop->type <= 4)
				globals::netvars[hash][name] = static_cast<std::ptrdiff_t>(prop->offset) + offset;
		}
	}
}