blame: source/code/MenuSystem.cpp

/*

===========================================================================

blockattack - Block Attack - Rise of the Blocks

Copyright (C) 2005-2012 Poul Sander

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program.  If not, see http://www.gnu.org/licenses/

Source information and contacts persons can be found at

http://www.blockattack.net

===========================================================================

*/

#include "MenuSystem.h"

#include "common.h"

#include "global.hpp"

#include "gamecontroller.h"

#include "BlockGame.hpp"

static int oldmousex = 0;

static int oldmousey = 0;

using std::string;

using std::cerr;

using std::cout;

using std::vector;

const char* const menu_marked = "menu_marked";

const char* const menu_unmarked = "menu_unmarked";

ButtonGfx standardButton;

void ButtonGfx::setSurfaces() {

	this->xsize = globalData.spriteHolder->GetSprite(menu_marked).GetWidth();

	this->ysize = globalData.spriteHolder->GetSprite(menu_marked).GetHeight();

	if (globalData.verboseLevel) {

		cout << "Surfaces set, size: " << this->xsize << " , " << this->ysize << "\n";

	}

}

sago::SagoTextField* ButtonGfx::getLabel(const std::string& text) {

	const auto& theLabel = labels.find(text);

	if (theLabel != labels.end()) {

		return labels[text].get();

	}

	std::shared_ptr<sago::SagoTextField> newField = std::make_shared<sago::SagoTextField>();

	newField->SetHolder(&globalData.spriteHolder->GetDataHolder());

	newField->SetFont("freeserif");

	newField->SetFontSize(30);

	newField->SetOutline(1, {64,64,64,255});

	newField->SetText(text);

	labels[text] = newField;

	return labels[text].get();

}

Button::Button() {

	label = "";

	marked = false;

	action = nullptr;

	popOnRun = false;

}

Button::~Button() {

}

Button::Button(const Button& b) {

	label = b.label;

	marked = b.marked;

	action = b.action;

	popOnRun = false;

}

void Button::setLabel(const string& text) {

	label = text;

}

void Button::setAction(void (*action2run)(void)) {

	action = action2run;

}

void Button::doAction() {

	if (action) {

		action();

		return;

	}

	cerr << "Warning: button \"" << label << "\" has no action assigned!";

}

void Button::setPopOnRun(bool popOnRun) {

	this->popOnRun = popOnRun;

}

bool Button::isPopOnRun() const {

	return popOnRun;

}

static void drawToScreen(const Button& b) {

	if (b.marked) {

		globalData.spriteHolder->GetSprite(menu_marked).Draw(globalData.screen, SDL_GetTicks(), b.x, b.y);

	}

	else {

		globalData.spriteHolder->GetSprite(menu_unmarked).Draw(globalData.screen, SDL_GetTicks(), b.x, b.y);

	}

	standardButton.getLabel(b.label)->Draw(globalData.screen, b.x+standardButton.xsize/2,b.y+standardButton.ysize/2,

	                                       sago::SagoTextField::Alignment::center, sago::SagoTextField::VerticalAlignment::center);

	//standardButton.thefont->drawCenterAlsoHeight(globalData.screen, b.x+standardButton.xsize/2,b.y+standardButton.ysize/2, b.label);

}

static bool isClicked(const Button& b, int x,int y) {

	if ( x >= b.x && y >= b.y && x<= b.x+standardButton.xsize && y <= b.y + standardButton.ysize) {

		return true;

	}

	return false;

}

void Menu::drawSelf(SDL_Renderer* target) {

	DrawBackground(target);

	for (const Button* b : buttons) {

		drawToScreen(*b);

	}

	drawToScreen(exit);

	standardButton.getLabel(title)->Draw(target, 50, 50);

}

void Menu::placeButtons() {

	int nextY = 100;

	int X = 50;

	for (Button* it : buttons) {

		X = (globalData.xsize - standardButton.xsize)/2;

		it->x = X;

		it->y = nextY;

		nextY += standardButton.ysize+10;

	}

	exit.x = X;

	exit.y = nextY;

}

void Menu::addButton(Button* b) {

	buttons.push_back(b);

	b->marked = false;

	placeButtons();

}

Menu::Menu(SDL_Renderer* screen) {

	this->screen = screen;

	buttons = vector<Button*>(10);

	isSubmenu = true;

	exit.setLabel( _("Back") );

}

Menu::Menu(SDL_Renderer* screen,bool submenu) {

	this->screen = screen;

	buttons = vector<Button*>(0);

	isSubmenu = submenu;

	if (isSubmenu) {

		exit.setLabel( _("Back") );

	}

	else {

		exit.setLabel( _("Exit") );

	}

}

Menu::Menu(SDL_Renderer* screen, const string& title, bool submenu) {

	this->screen = screen;

	buttons = vector<Button*>(0);

	isSubmenu = submenu;

	this->title = title;

	if (isSubmenu) {

		exit.setLabel(_("Back") );

	}

	else {

		exit.setLabel(_("Exit") );

	}

}

bool isUpEvent(const SDL_Event& event) {

	if ( event.type == SDL_KEYDOWN ) {

		if (event.key.keysym.sym == SDLK_UP) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERBUTTONDOWN) {

		if (event.cbutton.button == SDL_CONTROLLER_BUTTON_DPAD_UP ) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERAXISMOTION  && event.caxis.axis == SDL_CONTROLLER_AXIS_LEFTY ) {

		checkDeadZone(event);

		const SDL_ControllerAxisEvent& a = event.caxis;

		if (getDeadZone(a.which, a.axis)) {

			if (event.caxis.value < -deadZoneLimit) {

				setDeadZone(a.which,a.axis,false);

				return true;

			}

		}

	}

	return false;

}

bool isDownEvent(const SDL_Event& event) {

	if ( event.type == SDL_KEYDOWN ) {

		if (event.key.keysym.sym == SDLK_DOWN) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERBUTTONDOWN) {

		if (event.cbutton.button == SDL_CONTROLLER_BUTTON_DPAD_DOWN ) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERAXISMOTION  && event.caxis.axis == SDL_CONTROLLER_AXIS_LEFTY ) {

		checkDeadZone(event);

		const SDL_ControllerAxisEvent& a = event.caxis;

		if (getDeadZone(a.which, a.axis)) {

			if (event.caxis.value > deadZoneLimit) {

				setDeadZone(a.which,a.axis,false);

				return true;

			}

		}

	}

	return false;

}

bool isLeftEvent(const SDL_Event& event) {

	if ( event.type == SDL_KEYDOWN ) {

		if (event.key.keysym.sym == SDLK_LEFT) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERBUTTONDOWN) {

		if (event.cbutton.button == SDL_CONTROLLER_BUTTON_DPAD_LEFT ) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERAXISMOTION  && event.caxis.axis == SDL_CONTROLLER_AXIS_LEFTX ) {

		checkDeadZone(event);

		const SDL_ControllerAxisEvent& a = event.caxis;

		if (getDeadZone(a.which, a.axis)) {

			if (event.caxis.value < -deadZoneLimit) {

				setDeadZone(a.which,a.axis,false);

				return true;

			}

		}

	}

	return false;

}

bool isRightEvent(const SDL_Event& event) {

	if ( event.type == SDL_KEYDOWN ) {

		if (event.key.keysym.sym == SDLK_RIGHT) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERBUTTONDOWN) {

		if (event.cbutton.button == SDL_CONTROLLER_BUTTON_DPAD_RIGHT ) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERAXISMOTION  && event.caxis.axis == SDL_CONTROLLER_AXIS_LEFTX ) {

		checkDeadZone(event);

		const SDL_ControllerAxisEvent& a = event.caxis;

		if (getDeadZone(a.which, a.axis)) {

			if (event.caxis.value > deadZoneLimit) {

				setDeadZone(a.which,a.axis,false);

				return true;

			}

		}

	}

	return false;

}

bool isEscapeEvent(const SDL_Event& event) {

	if ( event.type == SDL_KEYDOWN ) {

		if ( event.key.keysym.sym == SDLK_ESCAPE ) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERBUTTONDOWN) {

		if (event.cbutton.button == SDL_CONTROLLER_BUTTON_Y ) {

			return true;

		}

	}

	return false;

}

bool isConfirmEvent(const SDL_Event& event) {

	if ( event.type == SDL_KEYDOWN ) {

		if (event.key.keysym.sym == SDLK_RETURN || event.key.keysym.sym == SDLK_KP_ENTER ) {

			return true;

		}

	}

	if (event.type == SDL_CONTROLLERBUTTONDOWN) {

		if (event.cbutton.button == SDL_CONTROLLER_BUTTON_A || event.cbutton.button == SDL_CONTROLLER_BUTTON_B ) {

			return true;

		}

	}

	return false;

}

bool Menu::IsActive() {

	return running;

}

void Menu::Draw(SDL_Renderer* target) {

	placeButtons();

	drawSelf(target);

#if DEBUG

	static unsigned long int Frames;

	static unsigned long int Ticks;

	static char FPS[10];

	static sago::SagoTextField fpsField;

	sagoTextSetBlueFont(fpsField);

	Frames++;

	if (SDL_GetTicks() >= Ticks + 1000) {

		if (Frames > 999) {

			Frames=999;

		}

		snprintf(FPS, sizeof(FPS), "%lu fps", Frames);

		Frames = 0;

		Ticks = SDL_GetTicks();

	}

	fpsField.SetText(FPS);

	fpsField.Draw(globalData.screen, 800, 4);

#endif

}

void Menu::ProcessInput(const SDL_Event& event, bool& processed) {

	if (isUpEvent(event)) {

		marked--;

		if (marked<0) {

			marked = buttons.size();    //not -1, since exit is after the last element in the list

		}

		processed = true;

	}

	if (isDownEvent(event)) {

		marked++;

		if (marked> (int)buttons.size()) {

			marked = 0;

		}

		processed = true;

	}

	if (isEscapeEvent(event) && isSubmenu) {

		running = false;

		processed = true;

	}

	if (isConfirmEvent(event)) {

		if (marked < (int)buttons.size()) {

			buttons.at(marked)->doAction();

			if (buttons.at(marked)->isPopOnRun()) {

				running = false;

			}

		}

		if (marked == (int)buttons.size()) {

			running = false;

		}

		processed = true;

	}

}

void Menu::Update() {

	for (int i=0; i<(int)buttons.size(); i++) {

		buttons.at(i)->marked = (i == marked);

	}

	exit.marked = (marked == (int)buttons.size());

	Uint8 buttonState = SDL_GetMouseState(nullptr,nullptr);

	// If the mouse button is released, make bMouseUp equal true

	if ( (buttonState&SDL_BUTTON(1))==0) {

		bMouseUp=true;

	}

	if (abs(globalData.mousex-oldmousex)>5 || abs(globalData.mousey-oldmousey)>5) {

		for (int i=0; i< (int)buttons.size(); ++i) {

			if (isClicked(*buttons.at(i), globalData.mousex, globalData.mousey)) {

				marked = i;

			}

		}

		if (isClicked(exit, globalData.mousex, globalData.mousey)) {

			marked = buttons.size();

		}

		oldmousex = globalData.mousex;

		oldmousey = globalData.mousey;

	}

	//mouse clicked

	if ( (buttonState&SDL_BUTTON(1) )==SDL_BUTTON(1) && bMouseUp) {

		bMouseUp = false;

		for (int i=0; i< (int)buttons.size(); ++i) {

			if (isClicked(*buttons.at(i), globalData.mousex, globalData.mousey)) {

				buttons.at(i)->doAction();

				if (buttons.at(i)->isPopOnRun()) {

					running = false;

				}

				//Quit here to ensure that we do not continue checking buttons after we have done the action.

				return;

			}

		}

		if (isClicked(exit,  globalData.mousex, globalData.mousey)) {

			running = false;

		}

	}

}