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