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                 case SDLK_p:
  76                         if (event.state == SDL_PRESSED) {
  77                                 PrintSelectionInfo();
  78                         }
  79         }
  80 }
  81
  82 void Interface::FaceBlock() {
  83         selection.SetFace(Block::Face((selection.GetFace() + 1) % Block::FACE_COUNT));
  84         hud.Display(selection);
  85 }
  86
  87 void Interface::TurnBlock() {
  88         selection.SetTurn(Block::Turn((selection.GetTurn() + 1) % Block::TURN_COUNT));
  89         hud.Display(selection);
  90 }
  91
  92 void Interface::PrintBlockInfo() {
  93         std::cout << std::endl;
  94         if (!aim_chunk) {
  95                 std::cout << "not looking at any block" << std::endl;
  96                 return;
  97         }
  98         std::cout << "looking at block " << aim_block
  99                 << " " << Chunk::ToCoords(aim_block)
 100                 << " of chunk " << aim_chunk->Position()
 101                 << std::endl;
 102         Print(aim_chunk->BlockAt(aim_block));
 103 }
 104
 105 void Interface::PrintSelectionInfo() {
 106         std::cout << std::endl;
 107         Print(selection);
 108 }
 109
 110 void Interface::Print(const Block &block) {
 111         std::cout << "type: " << block.type
 112                 << ", face: " << block.GetFace()
 113                 << ", turn: " << block.GetTurn()
 114                 << std::endl;
 115 }
 116
 117
 118 void Interface::Handle(const SDL_MouseMotionEvent &event) {
 119         ctrl.RotateYaw(event.xrel * yaw_sensitivity);
 120         ctrl.RotatePitch(event.yrel * pitch_sensitivity);
 121 }
 122
 123 void Interface::Handle(const SDL_MouseButtonEvent &event) {
 124         if (event.state != SDL_PRESSED) return;
 125
 126         if (event.button == 1) {
 127                 RemoveBlock();
 128         } else if (event.button == 2) {
 129                 PickBlock();
 130         } else if (event.button == 3) {
 131                 PlaceBlock();
 132         }
 133 }
 134
 135 void Interface::PickBlock() {
 136         if (!aim_chunk) return;
 137         selection = aim_chunk->BlockAt(aim_block);
 138         hud.Display(selection);
 139 }
 140
 141 void Interface::PlaceBlock() {
 142         if (!aim_chunk) return;
 143         Chunk *mod_chunk = aim_chunk;
 144         glm::vec3 next_pos = Chunk::ToCoords(aim_block) + aim_normal;
 145         if (!Chunk::InBounds(next_pos)) {
 146                 mod_chunk = &world.Next(*aim_chunk, aim_normal);
 147                 next_pos -= aim_normal * glm::vec3(Chunk::Extent());
 148         }
 149         mod_chunk->BlockAt(next_pos) = selection;
 150         mod_chunk->Invalidate();
 151 }
 152
 153 void Interface::RemoveBlock() {
 154         if (!aim_chunk) return;
 155         aim_chunk->BlockAt(aim_block) = remove;
 156         aim_chunk->Invalidate();
 157 }
 158
 159
 160 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 161         if (event.y < 0) {
 162                 SelectNext();
 163         } else if (event.y > 0) {
 164                 SelectPrevious();
 165         }
 166 }
 167
 168 void Interface::SelectNext() {
 169         ++selection.type;
 170         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 171                 selection.type = 1;
 172         }
 173         hud.Display(selection);
 174 }
 175
 176 void Interface::SelectPrevious() {
 177         --selection.type;
 178         if (selection.type <= 0) {
 179                 selection.type = world.BlockTypes().Size() - 1;
 180         }
 181         hud.Display(selection);
 182 }
 183
 184 void Interface::Handle(const SDL_WindowEvent &event) {
 185         if (event.event == SDL_WINDOWEVENT_RESIZED) {
 186                 hud.Viewport(event.data1, event.data2);
 187         }
 188 }
 189
 190
 191 void Interface::Update(int dt) {
 192         glm::vec3 vel;
 193         if (right && !left) {
 194                 vel.x = move_velocity;
 195         } else if (left && !right) {
 196                 vel.x = -move_velocity;
 197         }
 198         if (up && !down) {
 199                 vel.y = move_velocity;
 200         } else if (down && !up) {
 201                 vel.y = -move_velocity;
 202         }
 203         if (back && !front) {
 204                 vel.z = move_velocity;
 205         } else if (front && !back) {
 206                 vel.z = -move_velocity;
 207         }
 208         ctrl.Velocity(vel);
 209         ctrl.Update(dt);
 210
 211         Ray aim = ctrl.Aim();
 212         float dist;
 213         if (world.Intersection(aim, glm::mat4(1.0f), &aim_chunk, &aim_block, &dist, &aim_normal)) {
 214                 outline.Clear();
 215                 aim_chunk->Type(aim_chunk->BlockAt(aim_block)).FillOutlineModel(outline);
 216                 outline_transform = glm::scale(glm::mat4(1.0f), glm::vec3(1.0002f));
 217                 outline_transform = aim_chunk->Transform(world.Player().ChunkCoords());
 218                 outline_transform *= aim_chunk->ToTransform(aim_block);
 219         } else {
 220                 aim_chunk = nullptr;
 221         }
 222
 223 }
 224
 225
 226 void Interface::Render(DirectionalLighting &program) {
 227         if (aim_chunk) {
 228                 program.SetM(outline_transform);
 229                 outline.Draw();
 230         }
 231
 232         hud.Render(program);
 233 }
 234
 235 }