src/interface.cpp

   1 #include "interface.hpp"
   2
   3 #include "geometry.hpp"
   4 #include "world.hpp"
   5
   6 #include <iostream>
   7 #include <glm/glm.hpp>
   8 #include <glm/gtc/matrix_transform.hpp>
   9 #include <glm/gtx/io.hpp>
  10
  11
  12 namespace blank {
  13
  14 Interface::Interface(const Config &config, World &world)
  15 : world(world)
  16 , ctrl(world.Player())
  17 , hud(world.BlockTypes())
  18 , aim_chunk(nullptr)
  19 , aim_block(0)
  20 , aim_normal()
  21 , outline()
  22 , outline_transform(1.0f)
  23 , config(config)
  24 , remove(0)
  25 , selection(1)
  26 , front(false)
  27 , back(false)
  28 , left(false)
  29 , right(false)
  30 , up(false)
  31 , down(false) {
  32         hud.Viewport(960, 600);
  33         hud.Display(selection);
  34 }
  35
  36
  37 void Interface::Handle(const SDL_KeyboardEvent &event) {
  38         if (config.keyboard_disabled) return;
  39
  40         switch (event.keysym.sym) {
  41                 case SDLK_w:
  42                         front = event.state == SDL_PRESSED;
  43                         break;
  44                 case SDLK_s:
  45                         back = event.state == SDL_PRESSED;
  46                         break;
  47                 case SDLK_a:
  48                         left = event.state == SDL_PRESSED;
  49                         break;
  50                 case SDLK_d:
  51                         right = event.state == SDL_PRESSED;
  52                         break;
  53                 case SDLK_SPACE:
  54                         up = event.state == SDL_PRESSED;
  55                         break;
  56                 case SDLK_LSHIFT:
  57                         down = event.state == SDL_PRESSED;
  58                         break;
  59
  60                 case SDLK_q:
  61                         if (event.state == SDL_PRESSED) {
  62                                 FaceBlock();
  63                         }
  64                         break;
  65                 case SDLK_e:
  66                         if (event.state == SDL_PRESSED) {
  67                                 TurnBlock();
  68                         }
  69                         break;
  70
  71                 case SDLK_b:
  72                         if (event.state == SDL_PRESSED) {
  73                                 PrintBlockInfo();
  74                         }
  75                         break;
  76                 case SDLK_l:
  77                         if (event.state == SDL_PRESSED) {
  78                                 PrintLightInfo();
  79                         }
  80                         break;
  81                 case SDLK_p:
  82                         if (event.state == SDL_PRESSED) {
  83                                 PrintSelectionInfo();
  84                         }
  85                         break;
  86         }
  87 }
  88
  89 void Interface::FaceBlock() {
  90         selection.SetFace(Block::Face((selection.GetFace() + 1) % Block::FACE_COUNT));
  91         hud.Display(selection);
  92 }
  93
  94 void Interface::TurnBlock() {
  95         selection.SetTurn(Block::Turn((selection.GetTurn() + 1) % Block::TURN_COUNT));
  96         hud.Display(selection);
  97 }
  98
  99 void Interface::PrintBlockInfo() {
 100         std::cout << std::endl;
 101         if (!aim_chunk) {
 102                 std::cout << "not looking at any block" << std::endl;
 103                 return;
 104         }
 105         std::cout << "looking at block " << aim_block
 106                 << " " << Chunk::ToCoords(aim_block)
 107                 << " of chunk " << aim_chunk->Position()
 108                 << std::endl;
 109         Print(aim_chunk->BlockAt(aim_block));
 110 }
 111
 112 void Interface::PrintLightInfo() {
 113         std::cout
 114                 << "light level " << world.PlayerChunk().GetLight(world.Player().Position())
 115                 << " at position " << world.Player().Position()
 116                 << std::endl;
 117 }
 118
 119 void Interface::PrintSelectionInfo() {
 120         std::cout << std::endl;
 121         Print(selection);
 122 }
 123
 124 void Interface::Print(const Block &block) {
 125         std::cout << "type: " << block.type
 126                 << ", face: " << block.GetFace()
 127                 << ", turn: " << block.GetTurn()
 128                 << std::endl;
 129 }
 130
 131
 132 void Interface::Handle(const SDL_MouseMotionEvent &event) {
 133         if (config.mouse_disabled) return;
 134         ctrl.RotateYaw(event.xrel * config.yaw_sensitivity);
 135         ctrl.RotatePitch(event.yrel * config.pitch_sensitivity);
 136 }
 137
 138 void Interface::Handle(const SDL_MouseButtonEvent &event) {
 139         if (config.mouse_disabled) return;
 140
 141         if (event.state != SDL_PRESSED) return;
 142
 143         if (event.button == 1) {
 144                 RemoveBlock();
 145         } else if (event.button == 2) {
 146                 PickBlock();
 147         } else if (event.button == 3) {
 148                 PlaceBlock();
 149         }
 150 }
 151
 152 void Interface::PickBlock() {
 153         if (!aim_chunk) return;
 154         selection = aim_chunk->BlockAt(aim_block);
 155         hud.Display(selection);
 156 }
 157
 158 void Interface::PlaceBlock() {
 159         if (!aim_chunk) return;
 160         Chunk *mod_chunk = aim_chunk;
 161         glm::vec3 next_pos = Chunk::ToCoords(aim_block) + aim_normal;
 162         if (!Chunk::InBounds(next_pos)) {
 163                 mod_chunk = &world.Next(*aim_chunk, aim_normal);
 164                 next_pos -= aim_normal * glm::vec3(Chunk::Extent());
 165         }
 166         mod_chunk->SetBlock(next_pos, selection);
 167         mod_chunk->Invalidate();
 168 }
 169
 170 void Interface::RemoveBlock() {
 171         if (!aim_chunk) return;
 172         aim_chunk->SetBlock(aim_block, remove);
 173         aim_chunk->Invalidate();
 174 }
 175
 176
 177 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 178         if (config.mouse_disabled) return;
 179
 180         if (event.y < 0) {
 181                 SelectNext();
 182         } else if (event.y > 0) {
 183                 SelectPrevious();
 184         }
 185 }
 186
 187 void Interface::SelectNext() {
 188         ++selection.type;
 189         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 190                 selection.type = 1;
 191         }
 192         hud.Display(selection);
 193 }
 194
 195 void Interface::SelectPrevious() {
 196         --selection.type;
 197         if (selection.type <= 0) {
 198                 selection.type = world.BlockTypes().Size() - 1;
 199         }
 200         hud.Display(selection);
 201 }
 202
 203 void Interface::Handle(const SDL_WindowEvent &event) {
 204         if (event.event == SDL_WINDOWEVENT_RESIZED) {
 205                 hud.Viewport(event.data1, event.data2);
 206         }
 207 }
 208
 209
 210 void Interface::Update(int dt) {
 211         glm::vec3 vel;
 212         if (right && !left) {
 213                 vel.x = config.move_velocity;
 214         } else if (left && !right) {
 215                 vel.x = -config.move_velocity;
 216         }
 217         if (up && !down) {
 218                 vel.y = config.move_velocity;
 219         } else if (down && !up) {
 220                 vel.y = -config.move_velocity;
 221         }
 222         if (back && !front) {
 223                 vel.z = config.move_velocity;
 224         } else if (front && !back) {
 225                 vel.z = -config.move_velocity;
 226         }
 227         ctrl.Velocity(vel);
 228         ctrl.Update(dt);
 229
 230         Ray aim = ctrl.Aim();
 231         float dist;
 232         if (world.Intersection(aim, glm::mat4(1.0f), &aim_chunk, &aim_block, &dist, &aim_normal)) {
 233                 outline.Clear();
 234                 aim_chunk->Type(aim_chunk->BlockAt(aim_block)).FillOutlineModel(outline);
 235                 outline_transform = glm::scale(glm::mat4(1.0f), glm::vec3(1.0002f));
 236                 outline_transform = aim_chunk->Transform(world.Player().ChunkCoords());
 237                 outline_transform *= aim_chunk->ToTransform(aim_block);
 238         } else {
 239                 aim_chunk = nullptr;
 240         }
 241
 242 }
 243
 244
 245 void Interface::Render(DirectionalLighting &program) {
 246         if (config.visual_disabled) return;
 247
 248         if (aim_chunk) {
 249                 program.SetM(outline_transform);
 250                 outline.Draw();
 251         }
 252
 253         hud.Render(program);
 254 }
 255
 256 }