src/ui/ui.cpp

   1 #include "HUD.hpp"
   2 #include "Interface.hpp"
   3
   4 #include "../app/Assets.hpp"
   5 #include "../app/Environment.hpp"
   6 #include "../app/FrameCounter.hpp"
   7 #include "../app/init.hpp"
   8 #include "../audio/Audio.hpp"
   9 #include "../graphics/Font.hpp"
  10 #include "../graphics/Viewport.hpp"
  11 #include "../model/shapes.hpp"
  12 #include "../world/World.hpp"
  13
  14 #include <algorithm>
  15 #include <cmath>
  16 #include <iostream>
  17 #include <sstream>
  18 #include <glm/gtc/matrix_transform.hpp>
  19 #include <glm/gtx/io.hpp>
  20
  21
  22 namespace blank {
  23
  24 HUD::HUD(const BlockTypeRegistry &types, const Font &font)
  25 : types(types)
  26 , font(font)
  27 , block()
  28 , block_buf()
  29 , block_transform(1.0f)
  30 , block_label()
  31 , block_visible(false)
  32 , crosshair() {
  33         block_transform = glm::translate(block_transform, glm::vec3(50.0f, 50.0f, 0.0f));
  34         block_transform = glm::scale(block_transform, glm::vec3(50.0f));
  35         block_transform = glm::rotate(block_transform, 3.5f, glm::vec3(1.0f, 0.0f, 0.0f));
  36         block_transform = glm::rotate(block_transform, 0.35f, glm::vec3(0.0f, 1.0f, 0.0f));
  37
  38         OutlineModel::Buffer buf;
  39         buf.vertices = std::vector<glm::vec3>({
  40                 { -10.0f,   0.0f, 0.0f }, { 10.0f,  0.0f, 0.0f },
  41                 {   0.0f, -10.0f, 0.0f }, {  0.0f, 10.0f, 0.0f },
  42         });
  43         buf.indices = std::vector<OutlineModel::Index>({
  44                 0, 1, 2, 3
  45         });
  46         buf.colors.resize(4, { 10.0f, 10.0f, 10.0f });
  47         crosshair.Update(buf);
  48
  49         block_label.Position(
  50                 glm::vec3(50.0f, 85.0f, 0.0f),
  51                 Gravity::NORTH_WEST,
  52                 Gravity::NORTH
  53         );
  54         block_label.Foreground(glm::vec4(1.0f));
  55         block_label.Background(glm::vec4(0.5f));
  56 }
  57
  58
  59 void HUD::Display(const Block &b) {
  60         const BlockType &type = types.Get(b.type);
  61
  62         block_buf.Clear();
  63         type.FillEntityModel(block_buf, b.Transform());
  64         block.Update(block_buf);
  65
  66         block_label.Set(font, type.label);
  67
  68         block_visible = type.visible;
  69 }
  70
  71
  72 void HUD::Render(Viewport &viewport) noexcept {
  73         viewport.ClearDepth();
  74
  75         DirectionalLighting &world_prog = viewport.HUDProgram();
  76         world_prog.SetLightDirection({ 1.0f, 3.0f, 5.0f });
  77         // disable distance fog
  78         world_prog.SetFogDensity(0.0f);
  79
  80         viewport.EnableInvertBlending();
  81         viewport.SetCursor(glm::vec3(0.0f), Gravity::CENTER);
  82         world_prog.SetM(viewport.Cursor());
  83         crosshair.Draw();
  84
  85         if (block_visible) {
  86                 viewport.DisableBlending();
  87                 world_prog.SetM(block_transform);
  88                 block.Draw();
  89                 block_label.Render(viewport);
  90         }
  91 }
  92
  93
  94 Interface::Interface(
  95         const Config &config,
  96         Environment &env,
  97         World &world)
  98 : env(env)
  99 , world(world)
 100 , ctrl(world.Player())
 101 , hud(world.BlockTypes(), env.assets.small_ui_font)
 102 , aim{{ 0, 0, 0 }, { 0, 0, -1 }}
 103 , aim_chunk(nullptr)
 104 , aim_block(0)
 105 , aim_normal()
 106 , outline()
 107 , outline_transform(1.0f)
 108 , counter_text()
 109 , messages(env.assets.small_ui_font)
 110 , msg_timer(5000)
 111 , config(config)
 112 , place_timer(256)
 113 , remove_timer(256)
 114 , remove(0)
 115 , selection(1)
 116 , place_sound(env.assets.LoadSound("thump"))
 117 , remove_sound(env.assets.LoadSound("plop"))
 118 , fwd(0)
 119 , rev(0) {
 120         counter_text.Hide();
 121         counter_text.Position(glm::vec3(-25.0f, 25.0f, 0.0f), Gravity::NORTH_EAST);
 122         counter_text.Foreground(glm::vec4(1.0f));
 123         counter_text.Background(glm::vec4(0.5f));
 124         position_text.Hide();
 125         position_text.Position(glm::vec3(-25.0f, 25.0f + env.assets.small_ui_font.LineSkip(), 0.0f), Gravity::NORTH_EAST);
 126         position_text.Foreground(glm::vec4(1.0f));
 127         position_text.Background(glm::vec4(0.5f));
 128         messages.Position(glm::vec3(25.0f, -25.0f, 0.0f), Gravity::SOUTH_WEST);
 129         messages.Foreground(glm::vec4(1.0f));
 130         messages.Background(glm::vec4(0.5f));
 131         hud.Display(selection);
 132 }
 133
 134
 135 void Interface::HandlePress(const SDL_KeyboardEvent &event) {
 136         if (config.keyboard_disabled) return;
 137
 138         switch (event.keysym.sym) {
 139                 case SDLK_w:
 140                         rev.z = 1;
 141                         break;
 142                 case SDLK_s:
 143                         fwd.z = 1;
 144                         break;
 145                 case SDLK_a:
 146                         rev.x = 1;
 147                         break;
 148                 case SDLK_d:
 149                         fwd.x = 1;
 150                         break;
 151                 case SDLK_SPACE:
 152                         fwd.y = 1;
 153                         break;
 154                 case SDLK_LSHIFT:
 155                         rev.y = 1;
 156                         break;
 157
 158                 case SDLK_q:
 159                         FaceBlock();
 160                         break;
 161                 case SDLK_e:
 162                         TurnBlock();
 163                         break;
 164
 165                 case SDLK_n:
 166                         ToggleCollision();
 167                         break;
 168
 169                 case SDLK_b:
 170                         PrintBlockInfo();
 171                         break;
 172                 case SDLK_c:
 173                         PrintChunkInfo();
 174                         break;
 175                 case SDLK_l:
 176                         PrintLightInfo();
 177                         break;
 178                 case SDLK_p:
 179                         PrintSelectionInfo();
 180                         break;
 181
 182                 case SDLK_F1:
 183                         ToggleVisual();
 184                         break;
 185                 case SDLK_F3:
 186                         ToggleDebug();
 187                         break;
 188                 case SDLK_F4:
 189                         ToggleAudio();
 190                         break;
 191         }
 192 }
 193
 194 void Interface::HandleRelease(const SDL_KeyboardEvent &event) {
 195         if (config.keyboard_disabled) return;
 196
 197         switch (event.keysym.sym) {
 198                 case SDLK_w:
 199                         rev.z = 0;
 200                         break;
 201                 case SDLK_s:
 202                         fwd.z = 0;
 203                         break;
 204                 case SDLK_a:
 205                         rev.x = 0;
 206                         break;
 207                 case SDLK_d:
 208                         fwd.x = 0;
 209                         break;
 210                 case SDLK_SPACE:
 211                         fwd.y = 0;
 212                         break;
 213                 case SDLK_LSHIFT:
 214                         rev.y = 0;
 215                         break;
 216         }
 217 }
 218
 219 void Interface::FaceBlock() {
 220         selection.SetFace(Block::Face((selection.GetFace() + 1) % Block::FACE_COUNT));
 221         hud.Display(selection);
 222 }
 223
 224 void Interface::TurnBlock() {
 225         selection.SetTurn(Block::Turn((selection.GetTurn() + 1) % Block::TURN_COUNT));
 226         hud.Display(selection);
 227 }
 228
 229 void Interface::ToggleCollision() {
 230         ctrl.Controlled().WorldCollidable(!ctrl.Controlled().WorldCollidable());
 231         if (ctrl.Controlled().WorldCollidable()) {
 232                 PostMessage("collision on");
 233         } else {
 234                 PostMessage("collision off");
 235         }
 236 }
 237
 238 void Interface::PrintBlockInfo() {
 239         std::cout << std::endl;
 240         if (!aim_chunk) {
 241                 PostMessage("not looking at any block");
 242                 Ray aim = ctrl.Aim();
 243                 std::stringstream s;
 244                 s << "aim ray: " << aim.orig << ", " << aim.dir;
 245                 PostMessage(s.str());
 246                 return;
 247         }
 248         std::stringstream s;
 249         s << "looking at block " << aim_block
 250                 << " " << Chunk::ToCoords(aim_block)
 251                 << " of chunk " << aim_chunk->Position()
 252         ;
 253         PostMessage(s.str());
 254         Print(aim_chunk->BlockAt(aim_block));
 255 }
 256
 257 void Interface::PrintChunkInfo() {
 258         std::cout << std::endl;
 259         if (!aim_chunk) {
 260                 PostMessage("not looking at any block");
 261                 return;
 262         }
 263         std::stringstream s;
 264         s << "looking at chunk " << aim_chunk->Position();
 265         PostMessage(s.str());
 266
 267         PostMessage("  neighbors:");
 268         if (aim_chunk->HasNeighbor(Block::FACE_LEFT)) {
 269                 s.str("");
 270                 s << " left  " << aim_chunk->GetNeighbor(Block::FACE_LEFT).Position();
 271                 PostMessage(s.str());
 272         }
 273         if (aim_chunk->HasNeighbor(Block::FACE_RIGHT)) {
 274                 s.str("");
 275                 s << " right " << aim_chunk->GetNeighbor(Block::FACE_RIGHT).Position();
 276                 PostMessage(s.str());
 277         }
 278         if (aim_chunk->HasNeighbor(Block::FACE_UP)) {
 279                 s.str("");
 280                 s << " up    " << aim_chunk->GetNeighbor(Block::FACE_UP).Position();
 281                 PostMessage(s.str());
 282         }
 283         if (aim_chunk->HasNeighbor(Block::FACE_DOWN)) {
 284                 s.str("");
 285                 s << " down  " << aim_chunk->GetNeighbor(Block::FACE_DOWN).Position();
 286                 PostMessage(s.str());
 287         }
 288         if (aim_chunk->HasNeighbor(Block::FACE_FRONT)) {
 289                 s.str("");
 290                 s << " front " << aim_chunk->GetNeighbor(Block::FACE_FRONT).Position();
 291                 PostMessage(s.str());
 292         }
 293         if (aim_chunk->HasNeighbor(Block::FACE_BACK)) {
 294                 s.str("");
 295                 s << " back  " << aim_chunk->GetNeighbor(Block::FACE_BACK).Position();
 296                 PostMessage(s.str());
 297         }
 298         std::cout << std::endl;
 299 }
 300
 301 void Interface::PrintLightInfo() {
 302         std::stringstream s;
 303         s
 304                 << "light level " << world.PlayerChunk().GetLight(world.Player().Position())
 305                 << " at position " << world.Player().Position()
 306         ;
 307         PostMessage(s.str());
 308 }
 309
 310 void Interface::PrintSelectionInfo() {
 311         std::cout << std::endl;
 312         Print(selection);
 313 }
 314
 315 void Interface::Print(const Block &block) {
 316         std::stringstream s;
 317         s << "type: " << block.type
 318                 << ", face: " << block.GetFace()
 319                 << ", turn: " << block.GetTurn()
 320         ;
 321         PostMessage(s.str());
 322 }
 323
 324 void Interface::ToggleAudio() {
 325         config.audio_disabled = !config.audio_disabled;
 326         if (config.audio_disabled) {
 327                 PostMessage("audio off");
 328         } else {
 329                 PostMessage("audio on");
 330         }
 331 }
 332
 333 void Interface::ToggleVisual() {
 334         config.visual_disabled = !config.visual_disabled;
 335         if (config.visual_disabled) {
 336                 PostMessage("visual off");
 337         } else {
 338                 PostMessage("visual on");
 339         }
 340 }
 341
 342 void Interface::ToggleDebug() {
 343         counter_text.Toggle();
 344         position_text.Toggle();
 345         if (counter_text.Visible()) {
 346                 UpdateCounter();
 347                 UpdatePosition();
 348         }
 349 }
 350
 351 void Interface::UpdateCounter() {
 352         std::stringstream s;
 353         s << std::setprecision(3) <<
 354                 "avg: " << env.counter.Average().running << "ms, "
 355                 "peak: " << env.counter.Peak().running << "ms";
 356         std::string text = s.str();
 357         counter_text.Set(env.assets.small_ui_font, text);
 358 }
 359
 360 void Interface::UpdatePosition() {
 361         std::stringstream s;
 362         s << std::setprecision(3) << "pos: " << ctrl.Controlled().AbsolutePosition();
 363         position_text.Set(env.assets.small_ui_font, s.str());
 364 }
 365
 366
 367 void Interface::Handle(const SDL_MouseMotionEvent &event) {
 368         if (config.mouse_disabled) return;
 369         ctrl.RotateYaw(event.xrel * config.yaw_sensitivity);
 370         ctrl.RotatePitch(event.yrel * config.pitch_sensitivity);
 371 }
 372
 373 void Interface::HandlePress(const SDL_MouseButtonEvent &event) {
 374         if (config.mouse_disabled) return;
 375
 376         if (event.button == SDL_BUTTON_LEFT) {
 377                 RemoveBlock();
 378                 remove_timer.Start();
 379         } else if (event.button == SDL_BUTTON_MIDDLE) {
 380                 PickBlock();
 381         } else if (event.button == SDL_BUTTON_RIGHT) {
 382                 PlaceBlock();
 383                 place_timer.Start();
 384         }
 385 }
 386
 387 void Interface::HandleRelease(const SDL_MouseButtonEvent &event) {
 388         if (config.mouse_disabled) return;
 389
 390         if (event.button == SDL_BUTTON_LEFT) {
 391                 remove_timer.Stop();
 392         } else if (event.button == SDL_BUTTON_RIGHT) {
 393                 place_timer.Stop();
 394         }
 395 }
 396
 397 void Interface::PickBlock() {
 398         if (!aim_chunk) return;
 399         selection = aim_chunk->BlockAt(aim_block);
 400         hud.Display(selection);
 401 }
 402
 403 void Interface::PlaceBlock() {
 404         if (!aim_chunk) return;
 405         Chunk *mod_chunk = aim_chunk;
 406         glm::vec3 next_pos = Chunk::ToCoords(aim_block) + aim_normal;
 407         if (!Chunk::InBounds(next_pos)) {
 408                 mod_chunk = &world.Next(*aim_chunk, aim_normal);
 409                 next_pos -= aim_normal * glm::vec3(Chunk::Extent());
 410         }
 411         mod_chunk->SetBlock(next_pos, selection);
 412
 413         if (config.audio_disabled) return;
 414         const Entity &player = ctrl.Controlled();
 415         env.audio.Play(
 416                 place_sound,
 417                 mod_chunk->ToSceneCoords(player.ChunkCoords(), next_pos)
 418         );
 419 }
 420
 421 void Interface::RemoveBlock() noexcept {
 422         if (!aim_chunk) return;
 423         aim_chunk->SetBlock(aim_block, remove);
 424
 425         if (config.audio_disabled) return;
 426         const Entity &player = ctrl.Controlled();
 427         env.audio.Play(
 428                 remove_sound,
 429                 aim_chunk->ToSceneCoords(player.ChunkCoords(), Chunk::ToCoords(aim_block))
 430         );
 431 }
 432
 433
 434 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 435         if (config.mouse_disabled) return;
 436
 437         if (event.y < 0) {
 438                 SelectNext();
 439         } else if (event.y > 0) {
 440                 SelectPrevious();
 441         }
 442 }
 443
 444 void Interface::SelectNext() {
 445         ++selection.type;
 446         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 447                 selection.type = 1;
 448         }
 449         hud.Display(selection);
 450 }
 451
 452 void Interface::SelectPrevious() {
 453         --selection.type;
 454         if (selection.type <= 0) {
 455                 selection.type = world.BlockTypes().Size() - 1;
 456         }
 457         hud.Display(selection);
 458 }
 459
 460
 461 void Interface::PostMessage(const char *msg) {
 462         messages.PushLine(msg);
 463         msg_timer.Reset();
 464         msg_timer.Start();
 465         std::cout << msg << std::endl;
 466 }
 467
 468
 469 void Interface::Update(int dt) {
 470         ctrl.Velocity(glm::vec3(fwd - rev) * config.move_velocity);
 471         ctrl.Update(dt);
 472
 473         msg_timer.Update(dt);
 474         place_timer.Update(dt);
 475         remove_timer.Update(dt);
 476
 477         aim = ctrl.Aim();
 478         CheckAim();
 479
 480         if (msg_timer.HitOnce()) {
 481                 msg_timer.Stop();
 482         }
 483
 484         if (remove_timer.Hit()) {
 485                 RemoveBlock();
 486                 CheckAim();
 487         }
 488
 489         if (place_timer.Hit()) {
 490                 PlaceBlock();
 491                 CheckAim();
 492         }
 493
 494         if (counter_text.Visible() && env.counter.Changed()) {
 495                 UpdateCounter();
 496         }
 497         if (position_text.Visible()) {
 498                 UpdatePosition();
 499         }
 500 }
 501
 502 namespace {
 503
 504 OutlineModel::Buffer outl_buf;
 505
 506 }
 507
 508 void Interface::CheckAim() {
 509         float dist;
 510         if (world.Intersection(aim, glm::mat4(1.0f), aim_chunk, aim_block, dist, aim_normal)) {
 511                 outl_buf.Clear();
 512                 aim_chunk->Type(aim_chunk->BlockAt(aim_block)).FillOutlineModel(outl_buf);
 513                 outline.Update(outl_buf);
 514                 outline_transform = glm::scale(glm::vec3(1.0002f));
 515                 outline_transform *= aim_chunk->Transform(world.Player().ChunkCoords());
 516                 outline_transform *= aim_chunk->ToTransform(Chunk::ToPos(aim_block), aim_block);
 517         } else {
 518                 aim_chunk = nullptr;
 519         }
 520 }
 521
 522
 523 void Interface::Render(Viewport &viewport) noexcept {
 524         if (config.visual_disabled) return;
 525
 526         if (aim_chunk) {
 527                 DirectionalLighting &world_prog = viewport.EntityProgram();
 528                 world_prog.SetM(outline_transform);
 529                 outline.Draw();
 530         }
 531
 532         if (counter_text.Visible()) {
 533                 counter_text.Render(viewport);
 534         }
 535         if (position_text.Visible()) {
 536                 position_text.Render(viewport);
 537         }
 538
 539         if (msg_timer.Running()) {
 540                 messages.Render(viewport);
 541         }
 542
 543         hud.Render(viewport);
 544 }
 545
 546 }