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(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 , move_velocity(0.005f)
  24 , pitch_sensitivity(-0.0025f)
  25 , yaw_sensitivity(-0.001f)
  26 , remove(0)
  27 , selection(1)
  28 , front(false)
  29 , back(false)
  30 , left(false)
  31 , right(false)
  32 , up(false)
  33 , down(false) {
  34         hud.Viewport(960, 600);
  35         hud.Display(selection);
  36 }
  37
  38
  39 void Interface::Handle(const SDL_KeyboardEvent &event) {
  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         ctrl.RotateYaw(event.xrel * yaw_sensitivity);
 134         ctrl.RotatePitch(event.yrel * pitch_sensitivity);
 135 }
 136
 137 void Interface::Handle(const SDL_MouseButtonEvent &event) {
 138         if (event.state != SDL_PRESSED) return;
 139
 140         if (event.button == 1) {
 141                 RemoveBlock();
 142         } else if (event.button == 2) {
 143                 PickBlock();
 144         } else if (event.button == 3) {
 145                 PlaceBlock();
 146         }
 147 }
 148
 149 void Interface::PickBlock() {
 150         if (!aim_chunk) return;
 151         selection = aim_chunk->BlockAt(aim_block);
 152         hud.Display(selection);
 153 }
 154
 155 void Interface::PlaceBlock() {
 156         if (!aim_chunk) return;
 157         Chunk *mod_chunk = aim_chunk;
 158         glm::vec3 next_pos = Chunk::ToCoords(aim_block) + aim_normal;
 159         if (!Chunk::InBounds(next_pos)) {
 160                 mod_chunk = &world.Next(*aim_chunk, aim_normal);
 161                 next_pos -= aim_normal * glm::vec3(Chunk::Extent());
 162         }
 163         mod_chunk->SetBlock(next_pos, selection);
 164         mod_chunk->Invalidate();
 165 }
 166
 167 void Interface::RemoveBlock() {
 168         if (!aim_chunk) return;
 169         aim_chunk->SetBlock(aim_block, remove);
 170         aim_chunk->Invalidate();
 171 }
 172
 173
 174 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 175         if (event.y < 0) {
 176                 SelectNext();
 177         } else if (event.y > 0) {
 178                 SelectPrevious();
 179         }
 180 }
 181
 182 void Interface::SelectNext() {
 183         ++selection.type;
 184         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 185                 selection.type = 1;
 186         }
 187         hud.Display(selection);
 188 }
 189
 190 void Interface::SelectPrevious() {
 191         --selection.type;
 192         if (selection.type <= 0) {
 193                 selection.type = world.BlockTypes().Size() - 1;
 194         }
 195         hud.Display(selection);
 196 }
 197
 198 void Interface::Handle(const SDL_WindowEvent &event) {
 199         if (event.event == SDL_WINDOWEVENT_RESIZED) {
 200                 hud.Viewport(event.data1, event.data2);
 201         }
 202 }
 203
 204
 205 void Interface::Update(int dt) {
 206         glm::vec3 vel;
 207         if (right && !left) {
 208                 vel.x = move_velocity;
 209         } else if (left && !right) {
 210                 vel.x = -move_velocity;
 211         }
 212         if (up && !down) {
 213                 vel.y = move_velocity;
 214         } else if (down && !up) {
 215                 vel.y = -move_velocity;
 216         }
 217         if (back && !front) {
 218                 vel.z = move_velocity;
 219         } else if (front && !back) {
 220                 vel.z = -move_velocity;
 221         }
 222         ctrl.Velocity(vel);
 223         ctrl.Update(dt);
 224
 225         Ray aim = ctrl.Aim();
 226         float dist;
 227         if (world.Intersection(aim, glm::mat4(1.0f), &aim_chunk, &aim_block, &dist, &aim_normal)) {
 228                 outline.Clear();
 229                 aim_chunk->Type(aim_chunk->BlockAt(aim_block)).FillOutlineModel(outline);
 230                 outline_transform = glm::scale(glm::mat4(1.0f), glm::vec3(1.0002f));
 231                 outline_transform = aim_chunk->Transform(world.Player().ChunkCoords());
 232                 outline_transform *= aim_chunk->ToTransform(aim_block);
 233         } else {
 234                 aim_chunk = nullptr;
 235         }
 236
 237 }
 238
 239
 240 void Interface::Render(DirectionalLighting &program) {
 241         if (aim_chunk) {
 242                 program.SetM(outline_transform);
 243                 outline.Draw();
 244         }
 245
 246         hud.Render(program);
 247 }
 248
 249 }