#pragma once
#include "common.h"
#ifdef CUSTOM_FRONTEND_OPTIONS
#include "Frontend.h"
// Warning:
// All of the code relies on that you won't use more then NUM_MENUROWS(18) options on one page.
// Also congrats if you can make 18 options visible at once.
// About texts:
// All text parameters accept wchar(including hardcoded wchar* and TheText.Get)
// except FrontendScreenAdd(it's char[8] by the design of Frontend).
// All texts reload if custom options reloaded too, which includes language changes and via live reload feature in debug menu!
// Execute direction:
// All of the calls below eventually manipulate the aScreens array, so keep in mind to add/replace options in order,
// i.e. don't set cursor to 8 first and then 3.
// Live reload:
// You can add/change/undo the new options in-game if you use VS. Change what you want, build the changed bits via "Edit and Continue",
// and hit the "Reload custom frontend options" from debug menu. Or call CustomFrontendOptionsPopulate() from somewhere else.
// -- Option types
//
// Static/select: You allocate the variable, pass it to function and game sets it from user input among the strings given to function,
// then you can handle ChangeFunc(only called on enter if onlyApplyOnEnter set, or set immediately)
// and ReturnPrevPageFunc optionally. You can store the option in gta3.set if you pass true to corresponding parameter.
//
// Dynamic: Passing variable to function is only needed if you want to store it, otherwise you should do
// all the operations with ButtonPressFunc, this includes allocating the variable.
// Left-side text is passed while creating and static, but ofc right-side text is dynamic -
// you should return it in DrawFunc, which is called on every draw. ReturnPrevPageFunc is also here if needed.
//
// Redirect: Redirection to another screen. selectedOption parameter is the highlighted option user will see after the redirection.
//
// Built-in action: As the name suggests, any action that game has built-in. But as an extra you can set the option text,
// and can be informed on button press/focus loss via buttonPressFunc. ReturnPrevPageFunc is also here.
#define FEOPTION_SELECT 0
#define FEOPTION_DYNAMIC 1
#define FEOPTION_REDIRECT 2
#define FEOPTION_GOBACK 3
#define FEOPTION_BUILTIN_ACTION 4
// -- Returned via ButtonPressFunc() action param.
#define FEOPTION_ACTION_LEFT 0
#define FEOPTION_ACTION_RIGHT 1
#define FEOPTION_ACTION_SELECT 2
#define FEOPTION_ACTION_FOCUSLOSS 3
// -- Passed via FrontendScreenAdd()
#define FESCREEN_CENTER 0
#define FESCREEN_LEFT_ALIGN 1
#define FESCREEN_RIGHT_ALIGN 2
// -- Callbacks
// pretty much in everything I guess, and optional in all of them
typedef void (*ReturnPrevPageFunc)();
// for static options
typedef void (*ChangeFunc)(int8 displayedValue); // called before updating the value.
// only called on enter if onlyApplyOnEnter set, otherwise called on every value change
// for dynamic options
typedef wchar* (*DrawFunc)(bool* disabled, bool userHovering); // you must return a pointer for right text.
// you can also set *disabled if you want to gray it out.
typedef void (*ButtonPressFunc)(int8 action); // see FEOPTION_ACTIONs above
struct FrontendScreen
{
int id;
char name[8];
eMenuSprites sprite;
int prevPage;
int columnWidth;
int headerHeight;
int lineHeight;
int8 font;
float fontScaleX;
float fontScaleY;
int8 alignment;
bool showLeftRightHelper;
ReturnPrevPageFunc returnPrevPageFunc;
};
struct FrontendOption
{
int8 type;
int8 screenOptionOrder;
int32 screen;
wchar leftText[64];
ReturnPrevPageFunc returnPrevPageFunc;
int8* value;
int8 displayedValue; // only if onlyApplyOnEnter enabled for now
bool save;
int32 ogOptionId; // for replacements, see overwrite parameter of SetCursor
union {
// Only for dynamic / built-in action
struct {
DrawFunc drawFunc;
ButtonPressFunc buttonPressFunc;
};
// Only for static/select
struct {
wchar** rightTexts;
int8 numRightTexts;
bool onlyApplyOnEnter;
ChangeFunc changeFunc;
int8 lastSavedValue; // only if onlyApplyOnEnter enabled
};
// Only for redirect
struct {
int to;
int8 option;
bool fadeIn;
};
};
};
// -- Internal things
void RemoveCustomFrontendOptions();
void CustomFrontendOptionsPopulate();
extern int lastOgScreen; // for reloading
extern int numCustomFrontendOptions;
extern FrontendOption* customFrontendOptions;
extern int numCustomFrontendScreens;
extern FrontendScreen* customFrontendScreens;
// -- To be used in ButtonPressFunc / ChangeFunc(this one would be weird):
void ChangeScreen(int screen, int option = 0, bool fadeIn = true);
void GoBack(bool fadeIn = true);
uint8 GetNumberOfMenuOptions(int screen);
// -- Placing the cursor to append/overwrite option
//
// Done via FrontendOptionSetCursor(screen, position, overwrite = false), parameters explained below:
// Screen: as the name suggests. Also accepts the screen IDs returned from FrontendScreenAdd.
// Option: if positive, next AddOption call will put the option to there and progress the cursor.
// if negative, cursor will be placed on bottom-(pos+1), so -1 means the very bottom, -2 means before the back button etc.
// Overwrite: Use to overwrite the options, not appending a new one. AddOption calls will still progress the cursor.
void FrontendOptionSetCursor(int screen, int8 option, bool overwrite = false);
// var is optional in AddDynamic, you can enable save parameter if you pass one, otherwise pass nil/0
void FrontendOptionAddBuiltinAction(const wchar* leftText, int action, ButtonPressFunc buttonPressFunc, ReturnPrevPageFunc returnPrevPageFunc);
void FrontendOptionAddSelect(const wchar* leftText, const wchar** rightTexts, int8 numRightTexts, int8 *var, bool onlyApplyOnEnter, ChangeFunc changeFunc, ReturnPrevPageFunc returnPrevPageFunc, bool save = false);
void FrontendOptionAddDynamic(const wchar* leftText, DrawFunc rightTextDrawFunc, int8 *var, ButtonPressFunc buttonPressFunc, ReturnPrevPageFunc returnPrevPageFunc, bool save = false);
void FrontendOptionAddRedirect(const wchar* text, int to, int8 selectedOption = 0, bool fadeIn = true);
void FrontendOptionAddBackButton(const wchar* text, bool fadeIn = true);
uint8 FrontendScreenAdd(const char* gxtKey, eMenuSprites sprite, int prevPage, int columnWidth, int headerHeight, int lineHeight, int8 font, float fontScaleX, float fontScaleY, int8 alignment, bool showLeftRightHelper, ReturnPrevPageFunc returnPrevPageFunc = nil);
#endif
