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1 #include <string.h>
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2 #include <map>
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3 #include "game_var.h"
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4
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5 static std::map<std::string, GameVariable> gvars;
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6
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7 GameVariable::GameVariable()
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8 {
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9 num_val = 0.0f;
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10 bool_val = false;
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11 }
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12
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13 std::string GameVariable::to_str() const
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14 {
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15 char buf[128];
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16
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17 switch(type) {
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18 case GameVariable::STR:
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19 return val;
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20 case GameVariable::BOOL:
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21 return bool_val ? "true" : "false";
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22 case GameVariable::NUMBER:
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23 sprintf(buf, "%g", num_val);
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24 return buf;
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25 }
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26 return "<unknown>";
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27 }
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28
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29 void set_gvar(const GameVariable &var)
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30 {
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31 gvars[var.name] = var;
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32 }
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33
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34 void set_gvar_str(const char *name, const char *val)
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35 {
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36 GameVariable v;
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37 v.name = name;
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38 v.val = val;
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39 v.type = GameVariable::STR;
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40 set_gvar(v);
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41 }
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42
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43 void set_gvar_num(const char *name, float val)
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44 {
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45 GameVariable v;
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46 v.name = name;
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47 v.num_val = val;
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48 v.type = GameVariable::NUMBER;
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49 set_gvar(v);
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50 }
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51
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52 void set_gvar_bool(const char *name, bool val)
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53 {
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54 GameVariable v;
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55 v.name = name;
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56 v.bool_val = val;
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57 v.type = GameVariable::BOOL;
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58 set_gvar(v);
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59 }
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60
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61 static char *strip_whitespace(char *s)
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62 {
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63 while(*s && isspace(*s)) ++s;
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64 if(*s == 0) return s;
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65
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66 char *endp = s + strlen(s) - 1;
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67 while(endp > s && isspace(*endp)) {
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68 *endp-- = 0;
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69 }
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70 return s;
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71 }
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72
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73 static int strccmp(const char *a, const char *b)
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74 {
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75 while(*a && *b) {
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76 int diff = tolower(*a) - tolower(*b);
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77 if(diff != 0) return diff;
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78 ++a;
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79 ++b;
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80 }
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81 if(*a == 0 && *b == 0) return 0;
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82 return *a == 0 ? -1 : 1;
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83 }
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84
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85 int set_gvar_parse(const char *name, const char *val)
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86 {
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87 char *endp, *valstr = (char*)alloca(strlen(val) + 1);
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88 strcpy(valstr, val);
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89 valstr = strip_whitespace(valstr);
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90
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91 float fval = strtod(valstr, &endp);
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92 if(endp != valstr && *endp == 0) {
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93 set_gvar_num(name, fval);
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94 return GameVariable::NUMBER;
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95 }
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96
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97 if(strccmp(valstr, "true") == 0 || strccmp(valstr, "yes") == 0) {
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98 set_gvar_bool(name, true);
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99 return GameVariable::BOOL;
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100 }
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101 if(strccmp(valstr, "false") == 0 || strccmp(valstr, "no") == 0) {
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102 set_gvar_bool(name, false);
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103 return GameVariable::BOOL;
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104 }
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105 set_gvar_str(name, val);
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106 return GameVariable::STR;
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107 }
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108
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109 GameVariable &get_gvar(const char *name)
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110 {
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111 return gvars[name];
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112 }
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113
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114 const char *get_gvar_str(const char *name)
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115 {
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116 return gvars[name].val.c_str();
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117 }
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118
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119 float get_gvar_num(const char *name)
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120 {
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121 return gvars[name].num_val;
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122 }
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123
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124 bool get_gvar_bool(const char *name)
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125 {
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126 return gvars[name].bool_val;
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127 }
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128
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129 bool have_gvar(const char *name)
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130 {
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131 return gvars.find(std::string(name)) != gvars.end();
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132 }
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133
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134 std::list<std::string> get_gvar_list()
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135 {
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136 std::list<std::string> res;
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137
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138 std::map<std::string, GameVariable>::const_iterator it = gvars.begin();
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139 while(it != gvars.end()) {
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140 res.push_back((it++)->first);
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141 }
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142 return res;
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143 }
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