src/runtime.cpp

   1 #include "runtime.hpp"
   2
   3 #include "app.hpp"
   4
   5 #include <cctype>
   6 #include <cstdlib>
   7 #include <iostream>
   8
   9 using namespace std;
  10
  11
  12 namespace blank {
  13
  14 Runtime::Runtime() noexcept
  15 : name("blank")
  16 , mode(NORMAL)
  17 , n(0)
  18 , t(0)
  19 , config() {
  20
  21 }
  22
  23
  24 void Runtime::ReadArgs(int argc, const char *const *argv) {
  25         if (argc <= 0) return;
  26         name = argv[0];
  27
  28         bool options = true;
  29         bool error = false;
  30
  31         for (int i = 1; i < argc; ++i) {
  32                 const char *arg = argv[i];
  33                 if (!arg || arg[0] == '\0') {
  34                         cerr << "warning: found empty argument at position " << i << endl;
  35                         continue;
  36                 }
  37                 if (options && arg[0] == '-') {
  38                         if (arg[1] == '\0') {
  39                                 cerr << "warning: incomplete option list at position " << i << endl;
  40                         } else if (arg[1] == '-') {
  41                                 if (arg[2] == '\0') {
  42                                         // stopper
  43                                         options = false;
  44                                 } else {
  45                                         // long option
  46                                         if (strcmp(arg + 2, "no-vsync") == 0) {
  47                                                 config.vsync = false;
  48                                         } else if (strcmp(arg + 2, "no-keyboard") == 0) {
  49                                                 config.interface.keyboard_disabled = true;
  50                                         } else if (strcmp(arg + 2, "no-mouse") == 0) {
  51                                                 config.interface.mouse_disabled = true;
  52                                         } else if (strcmp(arg + 2, "no-hud") == 0) {
  53                                                 config.interface.visual_disabled = true;
  54                                         } else {
  55                                                 cerr << "unknown option " << arg << endl;
  56                                                 error = true;
  57                                         }
  58                                 }
  59                         } else {
  60                                 // short options
  61                                 for (int j = 1; arg[j] != '\0'; ++j) {
  62                                         switch (arg[j]) {
  63                                                 case 'd':
  64                                                         config.doublebuf = false;
  65                                                         break;
  66                                                 case 'm':
  67                                                         ++i;
  68                                                         if (i >= argc || argv[i] == nullptr || argv[i][0] == '\0') {
  69                                                                 cerr << "missing argument to -m" << endl;
  70                                                                 error = true;
  71                                                         } else {
  72                                                                 config.multisampling = strtoul(argv[i], nullptr, 10);
  73                                                         }
  74                                                         break;
  75                                                 case 'n':
  76                                                         ++i;
  77                                                         if (i >= argc || argv[i] == nullptr || argv[i][0] == '\0') {
  78                                                                 cerr << "missing argument to -n" << endl;
  79                                                                 error = true;
  80                                                         } else {
  81                                                                 n = strtoul(argv[i], nullptr, 10);
  82                                                         }
  83                                                         break;
  84                                                 case 's':
  85                                                         ++i;
  86                                                         if (i >= argc || argv[i] == nullptr || argv[i][0] == '\0') {
  87                                                                 cerr << "missing argument to -s" << endl;
  88                                                                 error = true;
  89                                                         } else {
  90                                                                 config.world.gen.solid_seed = strtoul(argv[i], nullptr, 10);
  91                                                                 config.world.gen.type_seed = config.world.gen.solid_seed;
  92                                                         }
  93                                                         break;
  94                                                 case 't':
  95                                                         ++i;
  96                                                         if (i >= argc || argv[i] == nullptr || argv[i][0] == '\0') {
  97                                                                 cerr << "missing argument to -t" << endl;
  98                                                                 error = true;
  99                                                         } else {
 100                                                                 t = strtoul(argv[i], nullptr, 10);
 101                                                         }
 102                                                         break;
 103                                                 case '-':
 104                                                         // stopper
 105                                                         options = false;
 106                                                         break;
 107                                                 default:
 108                                                         cerr << "unknown option " << arg[j] << endl;
 109                                                         error = true;
 110                                                         break;
 111                                         }
 112                                 }
 113                         }
 114                 } else if (isdigit(arg[0])) {
 115                         // positional number interpreted as -n
 116                         n = strtoul(arg, nullptr, 10);
 117                 } else {
 118                         cerr << "unable to interpret argument "
 119                                 << i << " (" << arg << ")" << endl;
 120                         error = true;
 121                 }
 122         }
 123
 124         if (error) {
 125                 mode = ERROR;
 126                 return;
 127         }
 128
 129         if (n > 0) {
 130                 if (t > 0) {
 131                         mode = FIXED_FRAME_LIMIT;
 132                 } else {
 133                         mode = FRAME_LIMIT;
 134                 }
 135         } else if (t > 0) {
 136                 mode = TIME_LIMIT;
 137         } else {
 138                 mode = NORMAL;
 139         }
 140 }
 141
 142 int Runtime::Execute() {
 143         if (mode == ERROR) {
 144                 return 1;
 145         }
 146
 147         Application app(config);
 148         switch (mode) {
 149                 default:
 150                 case NORMAL:
 151                         app.Run();
 152                         break;
 153                 case FRAME_LIMIT:
 154                         app.RunN(n);
 155                         break;
 156                 case TIME_LIMIT:
 157                         app.RunT(t);
 158                         break;
 159                 case FIXED_FRAME_LIMIT:
 160                         app.RunS(n, t);
 161                         break;
 162         }
 163         return 0;
 164 }
 165
 166 }