balatro-gba/include/button.h
Geralt e7f550ce22
[Feature] Implement options menu and reading/writing values from/to the SRAM (#449)
* background

* Implement Options button

* Update main menu artwork

* add options menu tiles

* prepare options menu handling

* incorporate main menu refactor

* toto

* add all menu interactions

* do not reset selection_x in main_menu

* options struct

* fix rebase from ricfehr3's repo

* Implement high contrast cards

* Save/Load options values to SRAM

* load options on game_init and validate data within the load_options function

* Get changes from ricfehr3's PR

* recover fix for glitched ace

* clang format

* clang format

* clang format

* Save 500B of image data by using only minimal set of tiles instead of keeping final window in source file

* clang format

* clang format

* Implement Options button

* Update main menu artwork

* progress, leaving it alone for now until discussion

* make game_vars an extern

* Move options vars into their own struct

* rollback previous commit

* Implement save validation. Version check to come

* implement data validity + version check for game saves

* clang format

* Save position in rng sequence for consistent run after load

* fix rebase issues

* fix rebase issue

* remove unused/duplicate define

* Oops, made a mistake when testing PR #424

* encode high contrast palette into an image, and load it at game_start

* document save.c/h and correct typos

* correct alignment

* game speed and high contrast buttons working

* small cleanup

* sliders also work again now

* clang format

* Moved balatro_version extern declaration to version.h file

* removed unsused variable

* make showing ROM version a toggle

* move ante, round and money to the GameVariables struct

* Rename SaveCheckInfo struct to SaveHeader for clarity

* Add SaveHeader struct explanation

* clang format

* Revert unnecessary tileset optimization

* SFX now follows the sound volume slider

* clang format

* Music now follows volume slider

* Changed volume slider increment from 5 to 20 to avoid having the music sound too rough under 20% volume

* refactor main_menu.c to use SelectionGrid and Button structs

* clang format

* make a "new" save button so we don't save during the state transition

* clang format

* Reduced state transition flicker by only changing affine background to a different one

* Fix loading game too late in game init sequence

* First batch of suggestions from @MeirGavish

* Remove unnecessary intermediary buffers for high contrast palette swapping

* comment row warp hack for button input

* Add some of Copilot's suggestions

* rename balatro_version into gbalatro_version for rebranding reasons + version display erase screen fix

* remove unnecessary NULL check on `on_selection_changed` method

* implement small game speed arrow buttons animation

* factorize some code

* remove unnecessary data validation in load_game(), since we already checked the header

* Implement @MeirGavish 's suggestion regarding splitting the huge `on_update` function

* clang format

* implement @ricfehr3 's suggestion about keeping last selected button instead of using an obscure `on_boot` boolean

* Apply @ricfehr3's suggestions

* fix clang-format flags

---------

Co-authored-by: MathisMartin31 <mathis.martin31@gmail.com>
2026-05-02 14:28:52 -07:00

76 lines
2.0 KiB
C

/**
* @file button.h
*
* @brief A button structure containing the common button functionalities
*/
#ifndef BUTTON_H
#define BUTTON_H
#include <tonc_types.h>
#define BTN_HIGHLIGHT_COLOR 0xFFFF
#define BUTTON_SFX_VOLUME 154 // 60% of MM_SFX_FULL_VOLUME
/**
* @brief The function to be called when the button is pressed
*/
typedef void (*ButtonOnPressedFunc)(void);
/**
* @brief Returns true if the button should be activated when pressed.
*/
typedef bool (*ButtonCanBePressedFunc)(void);
/**
* @brief A button representation
*/
typedef struct
{
// Using u8 for the palette indices to make sure they don't overflow pal_bg_mem
/**
* @brief Palette index of the button border whose color is updated depending on highlight.
*/
u8 border_pal_idx;
/**
* @brief Palette index of the color of the button itself, used for the border when not
* highlighted.
*/
u8 button_pal_idx;
/**
* @brief Called when the button is pressed if @ref can_be_pressed, don't call this directly,
* call @ref button_press() instead.
* Should not be set to NULL.
*/
ButtonOnPressedFunc on_pressed;
/**
* @brief Returns true if the button should be activated when pressed.
* Can be NULL if button can always be pressed.
*/
ButtonCanBePressedFunc can_be_pressed;
} Button;
/**
* @brief Set the button highlight on or off.
* @param button The button to modify. No-op on NULL.
* @param highlight true to highlight, false to unhighlight.
*/
void button_set_highlight(Button* button, bool highlight);
/**
* @brief Execute a button press, by calling the button's @ref on_pressed function.
* This checks the button's @ref can_be_pressed function and will do nothing if
* returns false.
*
* Button presses should go through this function rather than directly call @ref on_pressed.
*
* @param button The button being pressed. No-op on NULL.
*/
void button_press(Button* button);
#endif // BUTTON_H