Start work on MapWindow::setMapPixels

OpenLoco · Apr 13, 2024 · e7f8c91 · e7f8c91
1 parent 44adeb6
commit e7f8c91
Showing 1 changed file with 49 additions and 4 deletions.
diff --git a/src/OpenLoco/src/Windows/MapWindow.cpp b/src/OpenLoco/src/Windows/MapWindow.cpp
@@ -63,6 +63,7 @@ namespace OpenLoco::Ui::Windows::MapWindow
  static loco_global<uint8_t[256], 0x004FDC5C> _byte_4FDC5C;
  static loco_global<uint32_t, 0x00F253A4> _dword_F253A4;
  static loco_global<uint8_t*, 0x00F253A8> _dword_F253A8;
+ static loco_global<uint32_t, 0x00F253AC> _dword_F253AC; // current row?
  static std::array<uint16_t, 6> _vehicleTypeCounts = {
  {
  0,
@@ -219,11 +220,55 @@ namespace OpenLoco::Ui::Windows::MapWindow
  }
 
  // 0x0046C544
- static void sub_46C544(Window* self)
+ static void setMapPixels(const Window& self)
  {
+ _dword_F253A4 = self.var_854;
+ auto esi = _dword_F253AC * 0x2FF + _dword_F253A8 + (kMapRows - 1);
+
+ int32_t x = 0, y = 0, dx = 0, dy = 0;
+ switch (WindowManager::getCurrentRotation())
+ {
+ case 0:
+ x = _dword_F253AC * kTileSize;
+ y = 0;
+ dx = 0;
+ dy = kTileSize;
+ break;
+ case 1:
+ x = kMapWidth - kTileSize;
+ y = _dword_F253AC * kTileSize;
+ dx = -kTileSize;
+ dy = 0;
+ break;
+ case 2:
+ x = (kMapWidth - 1 - _dword_F253AC) * kTileSize;
+ y = kMapWidth - kTileSize;
+ dx = 0;
+ dy = -kTileSize;
+ break;
+ case 3:
+ x = 0;
+ y = (kMapWidth - 1 - _dword_F253AC) * kTileSize;
+ dx = kTileSize;
+ dy = 0;
+ break;
+ }
+
  registers regs;
- regs.esi = X86Pointer(self);
- call(0x0046C544, regs);
+ regs.eax = x;
+ regs.ecx = y;
+ regs.ebx = dx;
+ regs.ebp = dy;
+ regs.esi = X86Pointer(esi);
+
+ switch (self.currentTab)
+ {
+ case 0: 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
+ }
  }
 
  // 0x0046D34D based on
@@ -364,7 +409,7 @@ namespace OpenLoco::Ui::Windows::MapWindow
 
  while (i > 0)
  {
- sub_46C544(&self);
+ setMapPixels(self);
  i--;
  }