Implement setMapPixelsVehicles

src/OpenLoco/src/Windows/MapWindow.cpp

@@ -222,6 +222,7 @@ namespace OpenLoco::Ui::Windows::MapWindow
  self.setSize(kMinWindowSize, kMaxWindowSize);
  }
 
+ // 0x0046C5E5
  static void setMapPixelsOverall(PaletteIndex_t* mapPtr, Pos2 pos, Pos2 delta)
  {
  for (auto rowCountLeft = kMapColumns; rowCountLeft > 0; rowCountLeft--)
@@ -394,6 +395,86 @@ namespace OpenLoco::Ui::Windows::MapWindow
  _dword_F253AC = std::clamp<coord_t>(_dword_F253AC + 1, 0, kMapColumns);
  }
 
+ // 0x0046C873
+ static void setMapPixelsVehicles(PaletteIndex_t* mapPtr, Pos2 pos, Pos2 delta)
+ {
+ for (auto rowCountLeft = kMapColumns; rowCountLeft > 0; rowCountLeft--)
+ {
+ // Coords shouldn't be at map edge
+ if (!(pos.x > 0 && pos.y > 0 && pos.x < kMapWidth - kTileSize && pos.y < kMapHeight - kTileSize))
+ {
+ pos += delta;
+ mapPtr += 769; // scrollview width?
+ continue;
+ }
+
+ PaletteIndex_t colourAl{}, colourAh{}, colourDl{}, colourDh{};
+ auto tile = TileManager::get(pos);
+ for (auto& el : tile)
+ {
+ switch (el.type())
+ {
+ case ElementType::surface: // 0x00
+ {
+ auto* surfaceEl = el.as<SurfaceElement>();
+ if (surfaceEl == nullptr)
+ continue;
+
+ if (surfaceEl->water() == 0)
+ {
+ const auto* landObj = ObjectManager::get<LandObject>(surfaceEl->terrain());
+ const auto* landImage = Gfx::getG1Element(landObj->mapPixelImage);
+ colourAl = colourAh = landImage->offset[0];
+ }
+ else
+ {
+ const auto* waterObj = ObjectManager::get<WaterObject>();
+ const auto* waterImage = Gfx::getG1Element(waterObj->mapPixelImage);
+ colourAl = colourAh = waterImage->offset[0];
+ }
+
+ colourDl = colourDh = colourAl;
+ break;
+ }
+
+ case ElementType::track: // 0x04
+ case ElementType::station: // 0x08
+ case ElementType::road: // 0x1C
+ if (!el.isGhost() && !el.isAiAllocated())
+ {
+ colourDl = colourAl = PaletteIndex::index_0C; // ax, dx
+ colourAh = colourAl;
+ colourDh = colourDl;
+ }
+ break;
+
+ case ElementType::building: // 0x10
+ case ElementType::industry: // 0x20
+ if (!el.isGhost())
+ {
+ colourDl = colourAl = PaletteIndex::index_3C; // ax, dx
+ colourAh = colourAl;
+ colourDh = colourDh;
+ }
+ break;
+
+ default:
+ break;
+ };
+ }
+
+ mapPtr[0] = colourDl;
+ mapPtr[1] = colourDh;
+ mapPtr[0x90000] = colourAl;
+ mapPtr[0x90001] = colourAh;
+
+ pos += delta;
+ mapPtr += 769; // scrollview width?
+ }
+
+ _dword_F253AC = std::clamp<coord_t>(_dword_F253AC + 1, 0, kMapColumns);
+ }
+
  // 0x0046C544
  static void setMapPixels(const Window& self)
  {
@@ -431,11 +512,11 @@ namespace OpenLoco::Ui::Windows::MapWindow
 
  switch (self.currentTab)
  {
- case 0: setMapPixelsOverall(mapPtr, pos, delta); return; // call(0x0046C5E5, regs); return; // overall
- case 1: call(0x0046C873, regs); return; // vehicles
- case 2: call(0x0046C9A8, regs); return;  // industries
- case 3: call(0x0046CB68, regs); return;  // routes
- case 4: call(0x0046C5E5, regs); return;  // ownership
+ case 0: setMapPixelsOverall(mapPtr, pos, delta); return;
+ case 1: setMapPixelsVehicles(mapPtr, pos, delta); return;
+ case 2: call(0x0046C9A8, regs); return; // industries
+ case 3: call(0x0046CB68, regs); return; // routes
+ case 4: call(0x0046C5E5, regs); return; // ownership
  }
  }