blame: source/code/HelpHowtoState.cpp

/*

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

blockattack - Block Attack - Rise of the Blocks

Copyright (C) 2005-2018 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

https://blockattack.net

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

*/

#include "HelpHowtoState.hpp"

#include "global.hpp"

#include "common.h"

#include "MenuSystem.h"

const int xsize = 1024;

const int ysize = 768;

const int buttonOffset = 160;

extern sago::SagoSprite bExit;

extern sago::SagoSprite bricks[7];

/**

 * Draws bricks with a string like:

 * "aab" for two identical one and another

 * "aaB" the third one will have a bomb

 * The any char not in 'a' to 'g' or 'A' to 'G' the behavior is undefined. 

 * @param target Target to draw to

 * @param bricks description on what to draw as a string

 * @param x

 * @param y

 */

static void RenderRowOfBricks(SDL_Renderer* target, const std::string& brickStr, int x, int y) {

	Uint32 tick = SDL_GetTicks();

	for (size_t i = 0; i < brickStr.size(); ++i) {

		bool bomb = false;

		char brickChar = brickStr[i];

		if (brickChar >= 'A' && brickChar <= 'G') {

			bomb = true;

			brickChar = brickChar + 'a' - 'A';

		}

		if (brickChar >= 'a' &&  brickChar <= 'g') {

			bricks[brickChar - 'a'].Draw(target, tick, x+i*50, y);

			if (bomb) {

				globalData.spriteHolder->GetSprite("block_bomb").Draw(target, tick, x+i*50, y);

			}

		}

	}

}

class HorizontalSwitchAnimation {

public:

	std::string brickStr = "abc";

	int cursorPos = 0;

	int state = 0; //0=move left, 1 = switch, 2 = move right, 3 = switch

	Uint32 lastTick = 0;

	Uint32 animationSpeed = 2000;

	void Update (Uint32 tick) {

		if (tick > lastTick + animationSpeed) {

			lastTick = tick;

			switch (state) {

				case 0:

					cursorPos = 1;

					break;

				case 1:  //fallthough

				case 3:

					std::swap(brickStr[cursorPos], brickStr[cursorPos + 1]);

					break;

				case 2:

					cursorPos = 0;

					break;

			}

			++state;

			if (state > 3) {

				state = 0;

			}

		}

	}

};

HorizontalSwitchAnimation switchAnimation;

sago::SagoTextField switchAnimationField;

HelpHowtoState::HelpHowtoState() {

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

	switchAnimationField.SetFontSize(30);

	switchAnimationField.SetOutline(1, {0,0,0,255});

	switchAnimationField.SetText(_("Switch block horizontally"));

}

HelpHowtoState::~HelpHowtoState() {

}

bool HelpHowtoState::IsActive() {

	return isActive;

}

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

	UpdateMouseCoordinates(event, globalData.mousex, globalData.mousey);

	if (isConfirmEvent(event) || isEscapeEvent(event)) {

		isActive = false;

		processed = true;

	}

}

void HelpHowtoState::Draw(SDL_Renderer* target) {

	DrawBackground(target);

	RenderRowOfBricks(target, switchAnimation.brickStr, 50, 50);

	globalData.spriteHolder->GetSprite("cursor").Draw(target, SDL_GetTicks(), 50+switchAnimation.cursorPos*50, 50);

	switchAnimationField.Draw(target, 50 +150+30, 50);

	RenderRowOfBricks(target, "a aa", 50, 150);

	RenderRowOfBricks(target, " AAA", 50+300, 150);

	bExit.Draw(globalData.screen, SDL_GetTicks(), xsize-buttonOffset, ysize-buttonOffset);

}

void HelpHowtoState::Update() {

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

	if ( !(SDL_GetMouseState(nullptr, nullptr)&SDL_BUTTON(1)) ) {

		bMouseUp=true;

	}

	if (SDL_GetMouseState(nullptr,nullptr)&SDL_BUTTON(1) && bMouseUp) {

		bMouseUp = false;

		//The Score button:

		if ((globalData.mousex>xsize-buttonOffset) && (globalData.mousex<xsize-buttonOffset+bExit.GetWidth()) 

				&& (globalData.mousey>ysize-buttonOffset) && (globalData.mousey<ysize-buttonOffset+bExit.GetHeight())) {

			isActive = false;

		}

	}

	switchAnimation.Update(SDL_GetTicks());

}