Leahnaya/Poke_Transporter_GB
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Poke_Transporter_GB/include/sprite_data.h
easyaspi314 f3a164076d Cut VRAM usage roughly in half 
Memory manufacturers and AAA game studios hate her!

With some clever rearranging, PTGB now uses only 36 KiB of the 64 KiB
BG VRAM. This means the remaining 28 KiB is free to use in the future.

Caveats: The flex tileset must not use more that 6 KiB. There is a check
for it added.

VRAM Map
  06000000 - 06000800 ( 2K): Eternal backdrop and textbox tileset
  06000800 - 06002000 ( 6K): Flex BG tileset
  06002000 - 06002400 ( 2K): BG0: Backdrop tilemap
  06002800 - 06003000 ( 2K): BG1: Flex BG tilemap
  06003000 - 06003800 ( 2K): BG2: Textbox tilemap
  06003800 - 06004000 ( 2K): BG3: Text tilemap
  06004000 -~06009000 (20K): Text rendering bitmap
  06009000 - 06010000 (28K): Free work RAM
  06010000 - 06018000 (32K): Sprite tileset

Additionally:
- Explicitly clear VRAM on boot
- Dirty workaround to fix box drawing buffer overflow.
- Flex backgrounds use a table instead of a huge switch statement
- Textbox tile IDs are now const u16[] instead of int[]
2026-07-02 16:20:19 -04:00

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#ifndef SPRITE_DATA_H
#define SPRITE_DATA_H
#include <tonc.h>
#include "pokemon_party.h"
#include "rom_data.h"
#include "box_menu.h"
#define FENNEL_SHIFT 4
extern OBJ_ATTR obj_buffer[128];
extern OBJ_AFFINE *obj_aff_buffer;
extern int num_sprites;
#include "button_yes.h"
extern OBJ_ATTR *button_yes;
#include "button_no.h"
extern OBJ_ATTR *button_no;
#include "button_edge.h"
#include "types.h"
extern OBJ_ATTR *type_sprites[14];
#include "flag_jpn.h"
#include "flag_eng.h"
#include "flag_fre.h"
#include "flag_ita.h"
#include "flag_ger.h"
#include "flag_spa.h"
#include "flag_kor.h"
extern OBJ_ATTR *flag;
#include "Label_Green.h"
#include "Label_Red.h"
#include "Label_Blue.h"
#include "Label_Yellow.h"
#include "Label_Gold.h"
#include "Label_Silver.h"
#include "Label_Crystal.h"
extern OBJ_ATTR *cart_label;
#include "GB_Shell.h"
#include "GBC_Shell.h"
#include "GBS_Shell.h"
#include "GBCS_Shell.h"
extern OBJ_ATTR *cart_shell;
#include "arrows.h"
extern OBJ_ATTR *up_arrow;
extern OBJ_ATTR *down_arrow;
extern OBJ_ATTR *toggle_arrow_left;
extern OBJ_ATTR *toggle_arrow_right;
extern OBJ_ATTR *point_arrow;
#include "unique_duel_frame_menu_sprites.h"
extern OBJ_ATTR *party_sprites[30];
#include "box_select.h"
extern OBJ_ATTR *box_select;
#include "button_cancel_left.h"
extern OBJ_ATTR *button_cancel_left;
extern OBJ_ATTR *button_cancel_right;
#include "button_confirm_left.h"
extern OBJ_ATTR *button_confirm_left;
extern OBJ_ATTR *button_confirm_right;
#include "ptgb_logo_l.h"
extern OBJ_ATTR *ptgb_logo_l;
#include "ptgb_logo_r.h"
extern OBJ_ATTR *ptgb_logo_r;
#include "ruby_cart.h"
#include "sapphire_cart.h"
#include "fr_cart.h"
#include "lg_cart.h"
#include "emerald_cart.h"
extern OBJ_ATTR *gba_cart;
#include "link_frame1.h"
extern OBJ_ATTR *link_frame1;
#include "link_frame2.h"
extern OBJ_ATTR *link_frame2;
#include "link_frame3.h"
extern OBJ_ATTR *link_frame3;
#include "link_blobs.h"
extern OBJ_ATTR *link_blob1;
extern OBJ_ATTR *link_blob2;
extern OBJ_ATTR *link_blob3;
extern OBJ_ATTR *grabbed_front_sprite;
#define BG2VOF_SMALL_TEXTBOX 96
#define BG2VOF_LARGE_TEXTBOX 0
#define BTN_PAL 0
#define BTN_LIT_PAL 1
#define LOGO_PAL 2
#define TYPES_PAL1 3
#define TYPES_PAL2 4
#define GB_CART_PAL 5
#define FLAG_PAL 6
#define MENU_PAL_RED 7
#define MENU_PAL_BLU 8
#define MENU_PAL_GRN 9
#define MENU_PAL_BRN 10
#define MENU_PAL_PNK 11
#define MENU_PAL_START MENU_PAL_RED
#define GBA_CART_PAL 12
#define LINK_CABLE_PAL 13
#define PULLED_SPRITE_PAL 14
#define FLEXBG_OPENING 0
#define FLEXBG_FENNEL 1
#define FLEXBG_DEX 2
#define FLEXBG_MAIN_MENU 3
#define FLEXBG_BOX 4
//
// VRAM usage is heavily optimized so the rest of it can be used
// as additional work RAM in the future.
//
// VRAM Map
// 06000000 - 06000800 ( 2K): Eternal backdrop and textbox tileset
// 06000800 - 06002000 ( 6K): Flex BG tileset
// 06002000 - 06002400 ( 2K): BG0: Backdrop tilemap
// 06002800 - 06003000 ( 2K): BG1: Flex BG tilemap
// 06003000 - 06003800 ( 2K): BG2: Textbox tilemap
// 06003800 - 06004000 ( 2K): BG3: Text tilemap
// 06004000 -~06009000 (20K): Text rendering bitmap
// 06009000 - 06010000 (28K): Free work RAM (watch the 16-bit bus!)
// 06010000 - 06018000 (32K): Sprite tileset
//
#define TILESET_PTGB 0
#define TILESET_TEXT 1
#define TILESET_OFFSET_BACKDROP 0
#define TILESET_OFFSET_TEXTBOX 38
#define TILESET_OFFSET_FLEXBG 64
#define TILEMAP_BACKDROP 4
#define TILEMAP_FLEXBG 5
#define TILEMAP_TEXTBOX 6
#define TILEMAP_TEXT 7
extern rom_data curr_GBA_rom;
void load_sprite(OBJ_ATTR *sprite, const unsigned int objTiles[], int objTilesLen,
u32 &tile_id, u32 pal_bank, int attr0, int attr1, u32 priority);
void load_sprite_compressed(OBJ_ATTR *sprite, const unsigned int objTiles[],
u32 &tile_id, u32 pal_bank, int attr0, int attr1, u32 priority);
void load_background();
void set_background_pal(int curr_rom_id, bool dark, bool fade);
void load_textbox_background();
void load_flex_background(int background_id, int layer);
void load_eternal_sprites();
void load_temp_box_sprites(PokeBox* box);
void load_type_sprites(const u8* pkmn_type_table, int pkmn_index, int dex_offset, bool is_caught);
void add_menu_box(int options, int startTileX, int startTileY);
void add_menu_box(int startTileX, int startTileY, int width, int height);
void reload_textbox_background();
void load_select_sprites(u8 game_id, u8 lang);
void fennel_blink(int frame);
void fennel_speak(int frame);
int get_curr_flex_background();
void update_y_offset();
void erase_textbox_tiles();
void update_front_box_sprite(Pokemon *curr_pkmn, bool make_greyscale);
void update_menu_sprite(PokeBox* box, int index, int frame);
#endif
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