Add Room class for Dungeon editing

Loads basic properties from the dungeon room header by the room ID.

src/CMakeLists.txt

@@ -31,6 +31,7 @@ set(
   app/zelda3/title_screen.cc
   app/zelda3/sprite.cc
   app/zelda3/tracker.cc
+  app/zelda3/dungeon/room.cc
 )
 
 set(

src/app/zelda3/dungeon/room.cc

@@ -0,0 +1,109 @@
+#include "room.h"
+
+#include "app/core/common.h"
+#include "app/gfx/bitmap.h"
+#include "app/gfx/snes_palette.h"
+#include "app/gfx/snes_tile.h"
+#include "app/rom.h"
+#include "gui/canvas.h"
+
+namespace yaze {
+namespace app {
+namespace zelda3 {
+namespace dungeon {
+
+void Room::LoadChests() {}
+
+void Room::LoadBlocks() {}
+
+void Room::LoadTorches() {}
+
+void Room::LoadSecrets() {}
+
+void Room::LoadObjectsFromArray(int loc) {}
+
+void Room::LoadSpritesFromArray(int loc) {}
+
+void Room::LoadRoomFromROM() {
+  // Load dungeon header
+  int headerPointer = core::SnesToPc(room_header_pointer);
+
+  MessageID = messages_id_dungeon + (RoomID * 2);
+
+  int hpos = core::SnesToPc((rom_[room_header_pointers_bank] << 16) |
+                            headerPointer + (RoomID * 2));
+  hpos++;
+  uchar b = rom_[hpos];
+
+  Layer2Mode = (uchar)(b >> 5);
+  // TODO(@scawful): Make LayerMerging object.
+  // LayerMerging = LayerMergeType.ListOf[(b & 0x0C) >> 2];
+
+  IsDark = (b & 0x01) == 0x01;
+  hpos++;
+
+  Palette = rom_[hpos];
+  hpos++;
+
+  BackgroundTileset = rom_[hpos];
+  hpos++;
+
+  SpriteTileset = rom_[hpos];
+  hpos++;
+
+  Layer2Behavior = rom_[hpos];
+  hpos++;
+
+  Tag1 = rom_[hpos];
+  hpos++;
+
+  Tag2 = rom_[hpos];
+  hpos++;
+
+  b = rom_[hpos];
+
+  Pits.TargetLayer = (uchar)(b & 0x03);
+  Stair1.TargetLayer = (uchar)((b >> 2) & 0x03);
+  Stair2.TargetLayer = (uchar)((b >> 4) & 0x03);
+  Stair3.TargetLayer = (uchar)((b >> 6) & 0x03);
+  hpos++;
+  Stair4.TargetLayer = (uchar)(rom_[hpos] & 0x03);
+  hpos++;
+
+  Pits.Target = rom_[hpos];
+  hpos++;
+  Stair1.Target = rom_[hpos];
+  hpos++;
+  Stair2.Target = rom_[hpos];
+  hpos++;
+  Stair3.Target = rom_[hpos];
+  hpos++;
+  Stair4.Target = rom_[hpos];
+  hpos++;
+
+  // Load room objects
+  int objectPointer = core::SnesToPc(room_object_pointer);
+  int room_address = objectPointer + (RoomID * 3);
+
+  int objects_location = core::SnesToPc(room_address);
+
+  LoadObjectsFromArray(objects_location);
+
+  // Load sprites
+  int spr_ptr = 0x040000 | rooms_sprite_pointer;
+  int sprite_address =
+      core::SnesToPc(dungeon_spr_ptrs | spr_ptr + (RoomID * 2));
+  LoadSpritesFromArray(sprite_address);
+
+  // Load other stuff
+  LoadChests();
+  LoadBlocks();
+  LoadTorches();
+  LoadSecrets();
+  Resync();
+}
+
+}  // namespace dungeon
+}  // namespace zelda3
+}  // namespace app
+}  // namespace yaze

src/app/zelda3/dungeon/room.h

@@ -0,0 +1,129 @@
+#ifndef YAZE_APP_ZELDA3_DUNGEON_ROOM_H
+#define YAZE_APP_ZELDA3_DUNGEON_ROOM_H
+
+#include "app/core/common.h"
+#include "app/gfx/bitmap.h"
+#include "app/gfx/snes_palette.h"
+#include "app/gfx/snes_tile.h"
+#include "app/rom.h"
+#include "gui/canvas.h"
+
+namespace yaze {
+namespace app {
+namespace zelda3 {
+namespace dungeon {
+
+class DungeonDestination {
+ public:
+  DungeonDestination(uint8_t i) : Index(i) {}
+
+  uint8_t Index;
+  uint8_t Target = 0;
+  uint8_t TargetLayer = 0;
+  // RoomObject* AssociatedObject = nullptr;
+
+  // bool IsAssociated() { return AssociatedObject != nullptr; }
+
+  // int RealX() { return AssociatedObject ? AssociatedObject->RealX : 0; }
+
+  // int RealY() { return AssociatedObject ? AssociatedObject->RealY : 0; }
+
+  // void Reset() { AssociatedObject = nullptr; }
+
+  std::string ToString() {
+    return std::to_string(Index) + ": To " + std::to_string(Target);
+  }
+};
+
+constexpr int dungeons_palettes_groups = 0x75460;           // JP 0x67DD0
+constexpr int dungeons_main_bg_palette_pointers = 0xDEC4B;  // JP Same
+constexpr int dungeons_palettes = 0xDD734;
+constexpr int room_items_pointers = 0xDB69;    // JP 0xDB67
+constexpr int rooms_sprite_pointer = 0x4C298;  // JP Same //2byte bank 09D62E
+constexpr int room_header_pointer = 0xB5DD;    // LONG
+constexpr int room_header_pointers_bank = 0xB5E7;  // JP Same
+constexpr int gfx_groups_pointer = 0x6237;
+constexpr int room_object_layout_pointer = 0x882D;
+constexpr int room_object_pointer = 0x874C;  // Long pointer
+constexpr int chests_length_pointer = 0xEBF6;
+constexpr int chests_data_pointer1 = 0xEBFB;
+
+constexpr int messages_id_dungeon = 0x3F61D;
+
+constexpr int blocks_length = 0x8896;  // Word value
+constexpr int blocks_pointer1 = 0x15AFA;
+constexpr int blocks_pointer2 = 0x15B01;
+constexpr int blocks_pointer3 = 0x15B08;
+constexpr int blocks_pointer4 = 0x15B0F;
+constexpr int torch_data = 0x2736A;  // JP 0x2704A
+constexpr int torches_length_pointer = 0x88C1;
+constexpr int sprite_blockset_pointer = 0x5B57;
+
+constexpr int sprites_data = 0x4D8B0;
+
+constexpr int sprites_data_empty_room = 0x4D8AE;
+constexpr int sprites_end_data = 0x4EC9E;
+constexpr int pit_pointer = 0x394AB;
+constexpr int pit_count = 0x394A6;
+constexpr int doorPointers = 0xF83C0;
+
+// doors
+constexpr int door_gfx_up = 0x4D9E;
+constexpr int door_gfx_down = 0x4E06;
+constexpr int door_gfx_cavexit_down = 0x4E06;
+constexpr int door_gfx_left = 0x4E66;
+constexpr int door_gfx_right = 0x4EC6;
+constexpr int door_pos_up = 0x197E;
+constexpr int door_pos_down = 0x1996;
+constexpr int door_pos_left = 0x19AE;
+constexpr int door_pos_right = 0x19C6;
+
+constexpr int dungeon_spr_ptrs = 0x090000;
+
+class Room {
+ public:
+  Room() = default;
+
+ private:
+  void LoadChests();
+  void LoadBlocks();
+  void LoadTorches();
+  void LoadSecrets();
+  void Resync();
+
+  void LoadObjectsFromArray(int loc);
+  void LoadSpritesFromArray(int loc);
+
+  void LoadRoomFromROM();
+
+  DungeonDestination Pits;
+  DungeonDestination Stair1;
+  DungeonDestination Stair2;
+  DungeonDestination Stair3;
+  DungeonDestination Stair4;
+
+  int RoomID = 0;
+  int MessageID = 0;
+  ushort MessageID;
+  uchar BackgroundTileset;
+  uchar SpriteTileset;
+  uchar Layer2Behavior;
+  uchar Palette;
+  uchar Floor1Graphics;
+  uchar Floor2Graphics;
+  uchar Layer2Mode;
+
+  // LayerMergeType LayerMerging;
+  uchar Tag1;
+  uchar Tag2;
+  bool IsDark;
+
+  ROM rom_;
+};
+
+}  // namespace dungeon
+}  // namespace zelda3
+}  // namespace app
+}  // namespace yaze
+
+#endif