aboutsummaryrefslogtreecommitdiff
path: root/extension/src/GameSingleton.cpp
blob: 4d5728a4c6edf6a1427b40135f5085e0bb1279d9 (plain) (blame)
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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
#include "GameSingleton.hpp"

#include <godot_cpp/variant/utility_functions.hpp>
#include <godot_cpp/classes/file_access.hpp>
#include <godot_cpp/classes/json.hpp>

#include "openvic2/Logger.hpp"

using namespace godot;
using namespace OpenVic2;

#define ERR(x) ((x) == SUCCESS ? OK : FAILED)

GameSingleton* GameSingleton::singleton = nullptr;

void GameSingleton::_bind_methods() {
   ClassDB::bind_method(D_METHOD("load_province_identifier_file", "file_path"), &GameSingleton::load_province_identifier_file);
   ClassDB::bind_method(D_METHOD("load_water_province_file", "file_path"), &GameSingleton::load_water_province_file);
   ClassDB::bind_method(D_METHOD("load_region_file", "file_path"), &GameSingleton::load_region_file);
   ClassDB::bind_method(D_METHOD("load_province_shape_file", "file_path"), &GameSingleton::load_province_shape_file);
   ClassDB::bind_method(D_METHOD("setup"), &GameSingleton::setup);

   ClassDB::bind_method(D_METHOD("get_province_index_from_uv_coords", "coords"), &GameSingleton::get_province_index_from_uv_coords);
   ClassDB::bind_method(D_METHOD("get_province_info_from_index", "index"), &GameSingleton::get_province_info_from_index);
   ClassDB::bind_method(D_METHOD("get_width"), &GameSingleton::get_width);
   ClassDB::bind_method(D_METHOD("get_height"), &GameSingleton::get_height);
   ClassDB::bind_method(D_METHOD("get_aspect_ratio"), &GameSingleton::get_aspect_ratio);
   ClassDB::bind_method(D_METHOD("get_province_shape_image_subdivisions"), &GameSingleton::get_province_shape_image_subdivisions);
   ClassDB::bind_method(D_METHOD("get_province_shape_texture"), &GameSingleton::get_province_shape_texture);
   ClassDB::bind_method(D_METHOD("get_province_colour_texture"), &GameSingleton::get_province_colour_texture);

   ClassDB::bind_method(D_METHOD("update_colour_image"), &GameSingleton::update_colour_image);
   ClassDB::bind_method(D_METHOD("get_mapmode_count"), &GameSingleton::get_mapmode_count);
   ClassDB::bind_method(D_METHOD("get_mapmode_identifier", "index"), &GameSingleton::get_mapmode_identifier);
   ClassDB::bind_method(D_METHOD("set_mapmode", "identifier"), &GameSingleton::set_mapmode);

   ClassDB::bind_method(D_METHOD("expand_building", "province_index", "building_type_identifier"), &GameSingleton::expand_building);

   ClassDB::bind_method(D_METHOD("set_paused", "paused"), &GameSingleton::set_paused);
   ClassDB::bind_method(D_METHOD("toggle_paused"), &GameSingleton::toggle_paused);
   ClassDB::bind_method(D_METHOD("is_paused"), &GameSingleton::is_paused);
   ClassDB::bind_method(D_METHOD("increase_speed"), &GameSingleton::increase_speed);
   ClassDB::bind_method(D_METHOD("decrease_speed"), &GameSingleton::decrease_speed);
   ClassDB::bind_method(D_METHOD("can_increase_speed"), &GameSingleton::can_increase_speed);
   ClassDB::bind_method(D_METHOD("can_decrease_speed"), &GameSingleton::can_decrease_speed);
   ClassDB::bind_method(D_METHOD("get_longform_date"), &GameSingleton::get_longform_date);
   ClassDB::bind_method(D_METHOD("try_tick"), &GameSingleton::try_tick);

   ADD_SIGNAL(MethodInfo("state_updated"));
}

GameSingleton* GameSingleton::get_singleton() {
   return singleton;
}

/* REQUIREMENTS:
 * MAP-21, MAP-25
 */
GameSingleton::GameSingleton() : game_manager{ [this]() { emit_signal("state_updated"); } } {
   ERR_FAIL_COND(singleton != nullptr);
   singleton = this;

   Logger::set_info_func([](std::string&& str) { UtilityFunctions::print(str.c_str()); });
   Logger::set_error_func([](std::string&& str) { UtilityFunctions::push_error(str.c_str()); });

   using mapmode_t = std::pair<std::string, Mapmode::colour_func_t>;
   const std::vector<mapmode_t> mapmodes = {
      { "mapmode_province", [](Map const&, Province const& province) -> Province::colour_t { return province.get_colour(); } },
      { "mapmode_region", [](Map const&, Province const& province) -> Province::colour_t {
         Region const* region = province.get_region();
         if (region != nullptr) return region->get_colour();
         return province.get_colour();
      } },
      { "mapmode_terrain", [](Map const&, Province const& province) -> Province::colour_t {
         return province.is_water() ? 0x4287F5 : 0x0D7017;
      } },
      { "mapmode_index", [](Map const& map, Province const& province) -> Province::colour_t {
         const uint8_t f = static_cast<float>(province.get_index()) / static_cast<float>(map.get_province_count()) * 255.0f;
         return (f << 16) | (f << 8) | f;
      } }
   };
   for (mapmode_t const& mapmode : mapmodes)
      game_manager.map.add_mapmode(mapmode.first, mapmode.second);
   game_manager.map.lock_mapmodes();

   using building_type_t = std::tuple<std::string, Building::level_t, Timespan>;
   const std::vector<building_type_t> building_types = {
      { "building_fort", 4, 8 }, { "building_naval_base", 6, 15 }, { "building_railroad", 5, 10 }
   };
   for (building_type_t const& type : building_types)
      game_manager.building_manager.add_building_type(std::get<0>(type), std::get<1>(type), std::get<2>(type));
   game_manager.building_manager.lock_building_types();

}

GameSingleton::~GameSingleton() {
   ERR_FAIL_COND(singleton != this);
   singleton = nullptr;
}

static Error load_json_file(String const& file_description, String const& file_path, Variant& result) {
   result.clear();
   UtilityFunctions::print("Loading ", file_description, " file: ", file_path);
   const Ref<FileAccess> file = FileAccess::open(file_path, FileAccess::ModeFlags::READ);
   Error err = FileAccess::get_open_error();
   if (err != OK || file.is_null()) {
      UtilityFunctions::push_error("Failed to load ", file_description, " file: ", file_path);
      return err == OK ? FAILED : err;
   }
   const String json_string = file->get_as_text();
   JSON json;
   err = json.parse(json_string);
   if (err != OK) {
      UtilityFunctions::push_error("Failed to parse ", file_description, " file as JSON: ", file_path,
         "\nError at line ", json.get_error_line(), ": ", json.get_error_message());
      return err;
   }
   result = json.get_data();
   return err;
}

using parse_json_entry_func_t = std::function<godot::Error (godot::String const&, godot::Variant const&)>;

static Error parse_json_dictionary_file(String const& file_description, String const& file_path,
   String const& identifier_prefix, parse_json_entry_func_t parse_entry) {
   Variant json_var;
   Error err = load_json_file(file_description, file_path, json_var);
   if (err != OK) return err;
   const Variant::Type type = json_var.get_type();
   if (type != Variant::DICTIONARY) {
      UtilityFunctions::push_error("Invalid ", file_description, " JSON: root has type ",
         Variant::get_type_name(type), " (expected Dictionary)");
      return FAILED;
   }
   Dictionary const& dict = json_var;
   const Array identifiers = dict.keys();
   for (int64_t idx = 0; idx < identifiers.size(); ++idx) {
      String const& identifier = identifiers[idx];
      Variant const& entry = dict[identifier];
      if (identifier.is_empty()) {
         UtilityFunctions::push_error("Empty identifier in ", file_description, " file with entry: ", entry);
         err = FAILED;
         continue;
      }
      if (!identifier.begins_with(identifier_prefix))
         UtilityFunctions::push_warning("Identifier in ", file_description, " file missing \"", identifier_prefix, "\" prefix: ", identifier);
      if (parse_entry(identifier, entry) != OK) err = FAILED;
   }
   return err;
}

Error GameSingleton::_parse_province_identifier_entry(String const& identifier, Variant const& entry) {
   const Variant::Type type = entry.get_type();
   Province::colour_t colour = Province::NULL_COLOUR;
   if (type == Variant::ARRAY) {
      Array const& colour_array = entry;
      if (colour_array.size() == 3) {
         for (int jdx = 0; jdx < 3; ++jdx) {
            Variant const& var = colour_array[jdx];
            if (var.get_type() != Variant::FLOAT) {
               colour = Province::NULL_COLOUR;
               break;
            }
            const double colour_double = var;
            if (std::trunc(colour_double) != colour_double) {
               colour = Province::NULL_COLOUR;
               break;
            }
            const int64_t colour_int = static_cast<int64_t>(colour_double);
            if (colour_int < 0 || colour_int > 255) {
               colour = Province::NULL_COLOUR;
               break;
            }
            colour = (colour << 8) | colour_int;
         }
      }
   } else if (type == Variant::STRING) {
      String const& colour_string = entry;
      if (colour_string.is_valid_hex_number()) {
         const int64_t colour_int = colour_string.hex_to_int();
         if (0 <= colour_int && colour_int <= 0xFFFFFF)
            colour = colour_int;
      }
   }
   if (colour == Province::NULL_COLOUR) {
      UtilityFunctions::push_error("Invalid colour for province identifier \"", identifier, "\": ", entry);
      return FAILED;
   }
   return ERR(game_manager.map.add_province(identifier.utf8().get_data(), colour));
}

Error GameSingleton::load_province_identifier_file(String const& file_path) {
   const Error err = parse_json_dictionary_file("province identifier", file_path, "prov_",
      [this](String const& identifier, Variant const& entry) -> Error {
         return _parse_province_identifier_entry(identifier, entry);
      });
   game_manager.map.lock_provinces();
   return err;
}

Error GameSingleton::_parse_region_entry(String const& identifier, Variant const& entry) {
   Error err = OK;
   Variant::Type type = entry.get_type();
   std::vector<std::string> province_identifiers;
   if (type == Variant::ARRAY) {
      Array const& province_array = entry;
      for (int64_t idx = 0; idx < province_array.size(); ++idx) {
         Variant const& province_var = province_array[idx];
         type = province_var.get_type();
         if (type == Variant::STRING) {
            String const& province_string = province_var;
            province_identifiers.push_back(province_string.utf8().get_data());
         } else {
            UtilityFunctions::push_error("Invalid province identifier for region \"", identifier, "\": ", entry);
            err = FAILED;
         }
      }
   }
   if (province_identifiers.empty()) {
      UtilityFunctions::push_error("Invalid province list for region \"", identifier, "\": ", entry);
      return FAILED;
   }
   return ERR(game_manager.map.add_region(identifier.utf8().get_data(), province_identifiers));
}

Error GameSingleton::load_region_file(String const& file_path) {
   const Error err = parse_json_dictionary_file("region", file_path, "region_",
      [this](String const& identifier, Variant const& entry) -> Error {
         return _parse_region_entry(identifier, entry);
      });
   game_manager.map.lock_regions();
   return err;
}

Error GameSingleton::load_province_shape_file(String const& file_path) {
   if (province_shape_texture.is_valid()) {
      UtilityFunctions::push_error("Province shape file has already been loaded, cannot load: ", file_path);
      return FAILED;
   }
   Ref<Image> province_shape_image;
   province_shape_image.instantiate();
   Error err = province_shape_image->load(file_path);
   if (err != OK) {
      UtilityFunctions::push_error("Failed to load province shape file: ", file_path);
      return err;
   }
   const Vector2i image_dims = province_shape_image->get_size();
   if (image_dims.x < 1 || image_dims.y < 1) {
      UtilityFunctions::push_error("Invalid dimensions (", image_dims.x, "x", image_dims.y, ") for province shape file: ", file_path);
      err = FAILED;
   }
   static constexpr int32_t GPU_DIM_LIMIT = 0x3FFF;
   // For each dimension of the image, this finds the small number of equal subdivisions required get the individual texture dims under GPU_DIM_LIMIT
   for (int i = 0; i < 2; ++i) for (image_subdivisions[i] = 1;
      image_dims[i] / image_subdivisions[i] > GPU_DIM_LIMIT || image_dims[i] % image_subdivisions[i] != 0; ++image_subdivisions[i]);
   static constexpr Image::Format expected_format = Image::FORMAT_RGB8;
   const Image::Format format = province_shape_image->get_format();
   if (format != expected_format) {
      UtilityFunctions::push_error("Invalid format (", format, ", should be ", expected_format, ") for province shape file: ", file_path);
      err = FAILED;
   }
   if (err != OK) return err;
   err = ERR(game_manager.map.generate_province_shape_image(image_dims.x, image_dims.y, province_shape_image->get_data().ptr()));

   std::vector<Map::shape_pixel_t> const& province_shape_data = game_manager.map.get_province_shape_image();
   const Vector2i divided_dims = image_dims / image_subdivisions;
   Array province_shape_images;
   province_shape_images.resize(image_subdivisions.x * image_subdivisions.y);
   for (int32_t v = 0; v < image_subdivisions.y; ++v) {
      for (int32_t u = 0; u < image_subdivisions.x; ++u) {
         PackedByteArray index_data_array;
         index_data_array.resize(divided_dims.x * divided_dims.y * sizeof(Map::shape_pixel_t));

         for (int32_t y = 0; y < divided_dims.y; ++y)
            memcpy(index_data_array.ptrw() + y * divided_dims.x * sizeof(Map::shape_pixel_t),
               province_shape_data.data() + (v * divided_dims.y + y) * image_dims.x + u * divided_dims.x,
               divided_dims.x * sizeof(Map::shape_pixel_t));

         const Ref<Image> province_index_subimage = Image::create_from_data(divided_dims.x, divided_dims.y, false, Image::FORMAT_RGB8, index_data_array);
         if (province_index_subimage.is_null()) {
            UtilityFunctions::push_error("Failed to create province index image (", u, ", ", v, ")");
            err = FAILED;
         }
         province_shape_images[u + v * image_subdivisions.x] = province_index_subimage;
      }
   }

   province_shape_texture.instantiate();
   if (province_shape_texture->create_from_images(province_shape_images) != OK) {
      UtilityFunctions::push_error("");
      err = FAILED;
   }

   if (update_colour_image() != OK) err = FAILED;

   return err;
}

godot::Error GameSingleton::setup() {
   return ERR(game_manager.setup());
}

Error GameSingleton::load_water_province_file(String const& file_path) {
   Variant json_var;
   Error err = load_json_file("water province", file_path, json_var);
   if (err != OK) return err;
   Variant::Type type = json_var.get_type();
   if (type != Variant::ARRAY) {
      UtilityFunctions::push_error("Invalid water province JSON: root has type ",
         Variant::get_type_name(type), " (expected Array)");
      err = FAILED;
   } else {
      Array const& array = json_var;
      for (int64_t idx = 0; idx < array.size(); ++idx) {
         Variant const& entry = array[idx];
         type = entry.get_type();
         if (type != Variant::STRING) {
            UtilityFunctions::push_error("Invalid water province identifier: ", entry);
            err = FAILED;
            continue;
         }
         String const& identifier = entry;
         if (game_manager.map.set_water_province(identifier.utf8().get_data()) != SUCCESS)
            err = FAILED;
      }
   }
   game_manager.map.lock_water_provinces();
   return err;
}

int32_t GameSingleton::get_province_index_from_uv_coords(Vector2 const& coords) const {
   const size_t x_mod_w = UtilityFunctions::fposmod(coords.x, 1.0f) * get_width();
   const size_t y_mod_h = UtilityFunctions::fposmod(coords.y, 1.0f) * get_height();
   return game_manager.map.get_province_index_at(x_mod_w, y_mod_h);
}

#define KEY(x) static const StringName x##_key = #x;
Dictionary GameSingleton::get_province_info_from_index(int32_t index) const {
   Province const* province = game_manager.map.get_province_by_index(index);
   if (province == nullptr) return {};
   KEY(province) KEY(region) KEY(life_rating) KEY(buildings)
   Dictionary ret;

   ret[province_key] = province->get_identifier().c_str();

   Region const* region = province->get_region();
   if (region != nullptr) ret[region_key] = region->get_identifier().c_str();

   ret[life_rating_key] = province->get_life_rating();

   std::vector<Building> const& buildings = province->get_buildings();
   if (!buildings.empty()) {
      Array buildings_array;
      buildings_array.resize(buildings.size());
      for (size_t idx = 0; idx < buildings.size(); ++idx) {
         KEY(building) KEY(level) KEY(expansion_state) KEY(start_date) KEY(end_date) KEY(expansion_progress)
         
         Dictionary building_dict;
         Building const& building = buildings[idx];
         building_dict[building_key] = building.get_identifier().c_str();
         building_dict[level_key] = static_cast<int32_t>(building.get_level());
         building_dict[expansion_state_key] = static_cast<int32_t>(building.get_expansion_state());
         building_dict[start_date_key] = static_cast<std::string>(building.get_start_date()).c_str();
         building_dict[end_date_key] = static_cast<std::string>(building.get_end_date()).c_str();
         building_dict[expansion_progress_key] = building.get_expansion_progress();

         buildings_array[idx] = building_dict;
      }
      ret[buildings_key] = buildings_array;
   }
   return ret;
}
#undef KEY

int32_t GameSingleton::get_width() const {
   return game_manager.map.get_width();
}

int32_t GameSingleton::get_height() const {
   return game_manager.map.get_height();
}

float GameSingleton::get_aspect_ratio() const {
   return static_cast<float>(get_width()) / static_cast<float>(get_height());
}

Vector2i GameSingleton::get_province_shape_image_subdivisions() const {
   return image_subdivisions;
}

Ref<Texture> GameSingleton::get_province_shape_texture() const {
   return province_shape_texture;
}

Ref<Texture> GameSingleton::get_province_colour_texture() const {
   return province_colour_texture;
}

Error GameSingleton::update_colour_image() {
   static PackedByteArray colour_data_array;
   static constexpr int64_t colour_data_array_size = (Province::MAX_INDEX + 1) * Map::MAPMODE_COLOUR_SIZE;
   colour_data_array.resize(colour_data_array_size);

   Error err = OK;
   if (game_manager.map.generate_mapmode_colours(mapmode_index, colour_data_array.ptrw()) != SUCCESS)
      err = FAILED;

   static constexpr int32_t PROVINCE_INDEX_SQRT = 1 << (sizeof(Province::index_t) * 4);
   if (province_colour_image.is_null()) province_colour_image.instantiate();
   province_colour_image->set_data(PROVINCE_INDEX_SQRT, PROVINCE_INDEX_SQRT,
      false, Image::FORMAT_RGB8, colour_data_array);
   if (province_colour_image.is_null()) {
      UtilityFunctions::push_error("Failed to update province colour image");
      return FAILED;
   }
   if (province_colour_texture.is_null())
      province_colour_texture = ImageTexture::create_from_image(province_colour_image);
   else
      province_colour_texture->update(province_colour_image);
   return err;
}

int32_t GameSingleton::get_mapmode_count() const {
   return game_manager.map.get_mapmode_count();
}

String GameSingleton::get_mapmode_identifier(int32_t index) const {
   Mapmode const* mapmode = game_manager.map.get_mapmode_by_index(index);
   if (mapmode != nullptr) return mapmode->get_identifier().c_str();
   return String{};
}

Error GameSingleton::set_mapmode(godot::String const& identifier) {
   Mapmode const* mapmode = game_manager.map.get_mapmode_by_identifier(identifier.utf8().get_data());
   if (mapmode == nullptr) {
      UtilityFunctions::push_error("Failed to set mapmode to: ", identifier);
      return FAILED;
   }
   mapmode_index = mapmode->get_index();
   return OK;
}

Error GameSingleton::expand_building(int32_t province_index, String const& building_type_identifier) {
   if (game_manager.expand_building(province_index, building_type_identifier.utf8().get_data()) != SUCCESS) {
      UtilityFunctions::push_error("Failed to expand ", building_type_identifier, " at province index ", province_index);
      return FAILED;
   }
   return OK;
}

void GameSingleton::set_paused(bool paused) {
   game_manager.clock.isPaused = paused;
}

void GameSingleton::toggle_paused() {
   game_manager.clock.isPaused = !game_manager.clock.isPaused;
}

bool GameSingleton::is_paused() const {
   return game_manager.clock.isPaused;
}

void GameSingleton::increase_speed() {
   game_manager.clock.increaseSimulationSpeed();
}

void GameSingleton::decrease_speed() {
   game_manager.clock.decreaseSimulationSpeed();
}

bool GameSingleton::can_increase_speed() const {
   return game_manager.clock.canIncreaseSimulationSpeed();
}

bool GameSingleton::can_decrease_speed() const {
   return game_manager.clock.canDecreaseSimulationSpeed();
}

String GameSingleton::get_longform_date() const {
   return static_cast<std::string>(game_manager.get_today()).c_str();
}

void GameSingleton::try_tick() {
   game_manager.clock.conditionallyAdvanceGame();
}