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_p:
  77                         if (event.state == SDL_PRESSED) {
  78                                 PrintSelectionInfo();
  79                         }
  80                         break;
  81         }
  82 }
  83
  84 void Interface::FaceBlock() {
  85         selection.SetFace(Block::Face((selection.GetFace() + 1) % Block::FACE_COUNT));
  86         hud.Display(selection);
  87 }
  88
  89 void Interface::TurnBlock() {
  90         selection.SetTurn(Block::Turn((selection.GetTurn() + 1) % Block::TURN_COUNT));
  91         hud.Display(selection);
  92 }
  93
  94 void Interface::PrintBlockInfo() {
  95         std::cout << std::endl;
  96         if (!aim_chunk) {
  97                 std::cout << "not looking at any block" << std::endl;
  98                 return;
  99         }
 100         std::cout << "looking at block " << aim_block
 101                 << " " << Chunk::ToCoords(aim_block)
 102                 << " of chunk " << aim_chunk->Position()
 103                 << std::endl;
 104         Print(aim_chunk->BlockAt(aim_block));
 105 }
 106
 107 void Interface::PrintSelectionInfo() {
 108         std::cout << std::endl;
 109         Print(selection);
 110 }
 111
 112 void Interface::Print(const Block &block) {
 113         std::cout << "type: " << block.type
 114                 << ", face: " << block.GetFace()
 115                 << ", turn: " << block.GetTurn()
 116                 << std::endl;
 117 }
 118
 119
 120 void Interface::Handle(const SDL_MouseMotionEvent &event) {
 121         ctrl.RotateYaw(event.xrel * yaw_sensitivity);
 122         ctrl.RotatePitch(event.yrel * pitch_sensitivity);
 123 }
 124
 125 void Interface::Handle(const SDL_MouseButtonEvent &event) {
 126         if (event.state != SDL_PRESSED) return;
 127
 128         if (event.button == 1) {
 129                 RemoveBlock();
 130         } else if (event.button == 2) {
 131                 PickBlock();
 132         } else if (event.button == 3) {
 133                 PlaceBlock();
 134         }
 135 }
 136
 137 void Interface::PickBlock() {
 138         if (!aim_chunk) return;
 139         selection = aim_chunk->BlockAt(aim_block);
 140         hud.Display(selection);
 141 }
 142
 143 void Interface::PlaceBlock() {
 144         if (!aim_chunk) return;
 145         Chunk *mod_chunk = aim_chunk;
 146         glm::vec3 next_pos = Chunk::ToCoords(aim_block) + aim_normal;
 147         if (!Chunk::InBounds(next_pos)) {
 148                 mod_chunk = &world.Next(*aim_chunk, aim_normal);
 149                 next_pos -= aim_normal * glm::vec3(Chunk::Extent());
 150         }
 151         mod_chunk->BlockAt(next_pos) = selection;
 152         mod_chunk->Invalidate();
 153 }
 154
 155 void Interface::RemoveBlock() {
 156         if (!aim_chunk) return;
 157         aim_chunk->BlockAt(aim_block) = remove;
 158         aim_chunk->Invalidate();
 159 }
 160
 161
 162 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 163         if (event.y < 0) {
 164                 SelectNext();
 165         } else if (event.y > 0) {
 166                 SelectPrevious();
 167         }
 168 }
 169
 170 void Interface::SelectNext() {
 171         ++selection.type;
 172         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 173                 selection.type = 1;
 174         }
 175         hud.Display(selection);
 176 }
 177
 178 void Interface::SelectPrevious() {
 179         --selection.type;
 180         if (selection.type <= 0) {
 181                 selection.type = world.BlockTypes().Size() - 1;
 182         }
 183         hud.Display(selection);
 184 }
 185
 186 void Interface::Handle(const SDL_WindowEvent &event) {
 187         if (event.event == SDL_WINDOWEVENT_RESIZED) {
 188                 hud.Viewport(event.data1, event.data2);
 189         }
 190 }
 191
 192
 193 void Interface::Update(int dt) {
 194         glm::vec3 vel;
 195         if (right && !left) {
 196                 vel.x = move_velocity;
 197         } else if (left && !right) {
 198                 vel.x = -move_velocity;
 199         }
 200         if (up && !down) {
 201                 vel.y = move_velocity;
 202         } else if (down && !up) {
 203                 vel.y = -move_velocity;
 204         }
 205         if (back && !front) {
 206                 vel.z = move_velocity;
 207         } else if (front && !back) {
 208                 vel.z = -move_velocity;
 209         }
 210         ctrl.Velocity(vel);
 211         ctrl.Update(dt);
 212
 213         Ray aim = ctrl.Aim();
 214         float dist;
 215         if (world.Intersection(aim, glm::mat4(1.0f), &aim_chunk, &aim_block, &dist, &aim_normal)) {
 216                 outline.Clear();
 217                 aim_chunk->Type(aim_chunk->BlockAt(aim_block)).FillOutlineModel(outline);
 218                 outline_transform = glm::scale(glm::mat4(1.0f), glm::vec3(1.0002f));
 219                 outline_transform = aim_chunk->Transform(world.Player().ChunkCoords());
 220                 outline_transform *= aim_chunk->ToTransform(aim_block);
 221         } else {
 222                 aim_chunk = nullptr;
 223         }
 224
 225 }
 226
 227
 228 void Interface::Render(DirectionalLighting &program) {
 229         if (aim_chunk) {
 230                 program.SetM(outline_transform);
 231                 outline.Draw();
 232         }
 233
 234         hud.Render(program);
 235 }
 236
 237 }