src/common.h

changeset 72
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parent 71
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child 73
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equal deleted inserted replaced
71:11f23fabf8a6 72:03e4d9db3fd9
1 /*
2 * botc source code
3 * Copyright (C) 2012 Santeri `Dusk` Piippo
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 * 3. Neither the name of the developer nor the names of its contributors may
15 * be used to endorse or promote products derived from this software without
16 * specific prior written permission.
17 * 4. Redistributions in any form must be accompanied by information on how to
18 * obtain complete source code for the software and any accompanying
19 * software that uses the software. The source code must either be included
20 * in the distribution or be available for no more than the cost of
21 * distribution plus a nominal fee, and must be freely redistributable
22 * under reasonable conditions. For an executable file, complete source
23 * code means the source code for all modules it contains. It does not
24 * include source code for modules or files that typically accompany the
25 * major components of the operating system on which the executable file
26 * runs.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
32 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41 #ifndef __COMMON_H__
42 #define __COMMON_H__
43
44 #include <stdio.h>
45 #include <stdarg.h>
46 #include <stdint.h>
47 #include "bots.h"
48 #include "str.h"
49
50 // Application name and version
51 #define APPNAME "botc"
52 #define VERSION_MAJOR 0
53 #define VERSION_MINOR 999
54
55 // Use a macro for Write so we can get the function name
56 // This can be pretty crucial in debugging.
57 #ifdef __GNUC__
58 #define Write(STUFF) DoWrite (__PRETTY_FUNCTION__, STUFF)
59 #else
60 #define Write(STUFF) DoWrite (__func__, STUFF)
61 #endif
62
63 // On Windows, files are case-insensitive
64 #if (defined(WIN32) || defined(_WIN32) || defined(__WIN32)) && !defined(__CYGWIN__)
65 #define FILE_CASEINSENSITIVE
66 #endif
67
68 // Parser mode: where is the parser at?
69 enum parsermode_e {
70 MODE_TOPLEVEL, // at top level
71 MODE_EVENT, // inside event definition
72 MODE_MAINLOOP, // inside mainloop
73 MODE_ONENTER, // inside onenter
74 MODE_ONEXIT, // inside onexit
75 };
76
77 enum type_e {
78 TYPE_UNKNOWN = 0,
79 TYPE_VOID,
80 TYPE_INT,
81 TYPE_STRING,
82 TYPE_BOOL,
83 };
84
85 #define CHECK_FILE(pointer,path,action) \
86 if (!pointer) { \
87 error ("couldn't open %s for %s!\n", (char*)path, action); \
88 exit (1); \
89 }
90
91 // Shortcut for formatting
92 #define PERFORM_FORMAT(in, out) \
93 va_list v; \
94 va_start (v, in); \
95 char* out = vdynformat (in, v, 256); \
96 va_end (v);
97
98 // Plural expression
99 #define PLURAL(n) (n != 1) ? "s" : ""
100
101 // Shortcut for zeroing something
102 #define ZERO(obj) memset (&obj, 0, sizeof (obj));
103
104 void error (const char* text, ...);
105 char* ObjectFileName (str s);
106 bool fexists (char* path);
107 type_e GetTypeByName (str token);
108 str GetTypeName (type_e type);
109
110 // Make the parser's variables globally available
111 extern int g_NumStates;
112 extern int g_NumEvents;
113 extern parsermode_e g_CurMode;
114 extern str g_CurState;
115
116 #define neurosphere if (g_Neurosphere)
117 #define twice for (int repeat_token = 0; repeat_token < 2; repeat_token++)
118
119 #ifndef __GNUC__
120 #define __attribute__(X)
121 #endif
122 #define deprecated __attribute__ ((deprecated))
123
124 // Power function
125 template<class T> T pow (T a, unsigned int b) {
126 if (!b)
127 return 1;
128
129 T r = a;
130 while (b > 1) {
131 b--;
132 r = r * a;
133 }
134
135 return r;
136 }
137
138 // Whitespace check
139 inline bool IsCharWhitespace (char c) {
140 return (c <= 32 || c == 127 || c == 255);
141 }
142
143 // Byte datatype
144 typedef int32_t word;
145 typedef unsigned char byte;
146
147 // Keywords
148 #ifndef __MAIN_CXX__
149 extern const char** g_Keywords;
150 #endif
151
152 bool IsKeyword (str s);
153 unsigned int NumKeywords ();
154
155 // Script mark and reference
156 struct ScriptMark {
157 str name;
158 size_t pos;
159 };
160
161 struct ScriptMarkReference {
162 unsigned int num;
163 size_t pos;
164 };
165
166 // ====================================================================
167 // Generic union
168 template <class T> union union_t {
169 T val;
170 byte b[sizeof (T)];
171 char c[sizeof (T)];
172 double d;
173 float f;
174 int i;
175 word w;
176 };
177
178 // ====================================================================
179 // Finds a byte in the given value.
180 template <class T> inline unsigned char GetByteIndex (T a, unsigned int b) {
181 union_t<T> uni;
182 uni.val = a;
183 return uni.b[b];
184 }
185
186 #endif // __COMMON_H__

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