git repos / blockattack-game

source/code/ReadKeyboard.cpp

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/*
===========================================================================
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://blockattack.sf.net
===========================================================================
*/

#include "ReadKeyboard.h"


using namespace std;

ReadKeyboard::ReadKeyboard(void) {
	length = 0;
	maxLength = 16;
	position = 0;
	strcpy(textstring,"                             ");
}

ReadKeyboard::~ReadKeyboard(void) {
}

Uint8 ReadKeyboard::CharsBeforeCursor() {
	return position;
}

ReadKeyboard::ReadKeyboard(const char* oldName) {
	length = 0;
	maxLength = 16;
	position = 0;
	strcpy(textstring,"                             ");
	strncpy(textstring,oldName,strlen(oldName));
	char charecter = textstring[maxLength+1];
	int i = maxLength+1;
	while ((charecter == ' ') && (i>0)) {
		i--;
		charecter = textstring[i];
	}
	if (i>0) {
		length = i+1;
	}
	else if (charecter == ' ') {
		length = 0;
	}
	else {
		length = 1;
	}
	position = length;

}


void ReadKeyboard::putchar(char thing) {
	if (length < maxLength) {
		for (int i = 28; i>position; i--) {
			textstring[i]=textstring[i-1];
		}
		textstring[position] = thing;
		length++;
		position++;
	}
}


void ReadKeyboard::removeChar() {
	for (int i = position; i<28; i++) {
		textstring[i]=textstring[i+1];
	}
	textstring[28]=' ';
	if (length>0) {
		length--;
	}
}

bool ReadKeyboard::ReadKey(SDLKey keyPressed) {
	if (keyPressed == SDLK_SPACE) {
		ReadKeyboard::putchar(' ');
		return true;
	}
	if (keyPressed == SDLK_DELETE) {
		if ((length>0)&& (position<length)) {
			ReadKeyboard::removeChar();
		}
		return true;
	}
	if (keyPressed == SDLK_BACKSPACE) {
		if (position>0) {
			position--;
			ReadKeyboard::removeChar();
			return true;
		}
		return false;
	}
	Uint8* keys;
	keys = SDL_GetKeyState(nullptr);
	if (keyPressed == SDLK_HOME) {
		position=0;
		return true;
	}
	if (keyPressed == SDLK_END) {
		position=length;
		return true;
	}
	if ((keyPressed == SDLK_LEFT) && (position>0)) {
		position--;
		return true;
	}
	if ((keyPressed == SDLK_RIGHT) && (position<length)) {
		position++;
		return true;
	}
	char charToPut;
	if (keyPressed)
		switch (keyPressed) {
		case SDLK_a:
			charToPut = 'a';
			break;
		case SDLK_b:
			charToPut = 'b';
			break;
		case SDLK_c:
			charToPut = 'c';
			break;
		case SDLK_d:
			charToPut = 'd';
			break;
		case SDLK_e:
			charToPut = 'e';
			break;
		case SDLK_f:
			charToPut = 'f';
			break;
		case SDLK_g:
			charToPut = 'g';
			break;
		case SDLK_h:
			charToPut = 'h';
			break;
		case SDLK_i:
			charToPut = 'i';
			break;
		case SDLK_j:
			charToPut = 'j';
			break;
		case SDLK_k:
			charToPut = 'k';
			break;
		case SDLK_l:
			charToPut = 'l';
			break;
		case SDLK_m:
			charToPut = 'm';
			break;
		case SDLK_n:
			charToPut = 'n';
			break;
		case SDLK_o:
			charToPut = 'o';
			break;
		case SDLK_p:
			charToPut = 'p';
			break;
		case SDLK_q:
			charToPut = 'q';
			break;
		case SDLK_r:
			charToPut = 'r';
			break;
		case SDLK_s:
			charToPut = 's';
			break;
		case SDLK_t:
			charToPut = 't';
			break;
		case SDLK_u:
			charToPut = 'u';
			break;
		case SDLK_v:
			charToPut = 'v';
			break;
		case SDLK_w:
			charToPut = 'w';
			break;
		case SDLK_x:
			charToPut = 'x';
			break;
		case SDLK_y:
			charToPut = 'y';
			break;
		case SDLK_z:
			charToPut = 'z';
			break;
		case SDLK_0:
			charToPut = '0';
			break;
		case SDLK_1:
			charToPut = '1';
			break;
		case SDLK_2:
			charToPut = '2';
			break;
		case SDLK_3:
			charToPut = '3';
			break;
		case SDLK_4:
			charToPut = '4';
			break;
		case SDLK_5:
			charToPut = '5';
			break;
		case SDLK_6:
			charToPut = '6';
			break;
		case SDLK_7:
			charToPut = '7';
			break;
		case SDLK_8:
			charToPut = '8';
			break;
		case SDLK_9:
			charToPut = '9';
			break;
		case SDLK_KP0:
			charToPut = '0';
			break;
		case SDLK_KP1:
			charToPut = '1';
			break;
		case SDLK_KP2:
			charToPut = '2';
			break;
		case SDLK_KP3:
			charToPut = '3';
			break;
		case SDLK_KP4:
			charToPut = '4';
			break;
		case SDLK_KP5:
			charToPut = '5';
			break;
		case SDLK_KP6:
			charToPut = '6';
			break;
		case SDLK_KP7:
			charToPut = '7';
			break;
		case SDLK_KP8:
			charToPut = '8';
			break;
		case SDLK_KP9:
			charToPut = '9';
			break;
		case SDLK_KP_PERIOD:
		case SDLK_PERIOD:
			charToPut='.';
			break;
		default:
			return false;
		}
	if ((keys[SDLK_LSHIFT]) || (keys[SDLK_RSHIFT])) {
		switch (charToPut) {
		case 'a':
			charToPut = 'A';
			break;
		case 'b':
			charToPut = 'B';
			break;
		case 'c':
			charToPut = 'C';
			break;
		case 'd':
			charToPut = 'D';
			break;
		case 'e':
			charToPut = 'E';
			break;
		case 'f':
			charToPut = 'F';
			break;
		case 'g':
			charToPut = 'G';
			break;
		case 'h':
			charToPut = 'H';
			break;
		case 'i':
			charToPut = 'I';
			break;
		case 'j':
			charToPut = 'J';
			break;
		case 'k':
			charToPut = 'K';
			break;
		case 'l':
			charToPut = 'L';
			break;
		case 'm':
			charToPut = 'M';
			break;
		case 'n':
			charToPut = 'N';
			break;
		case 'o':
			charToPut = 'O';
			break;
		case 'p':
			charToPut = 'P';
			break;
		case 'q':
			charToPut = 'Q';
			break;
		case 'r':
			charToPut = 'R';
			break;
		case 's':
			charToPut = 'S';
			break;
		case 't':
			charToPut = 'T';
			break;
		case 'u':
			charToPut = 'U';
			break;
		case 'v':
			charToPut = 'V';
			break;
		case 'w':
			charToPut = 'W';
			break;
		case 'x':
			charToPut = 'X';
			break;
		case 'y':
			charToPut = 'Y';
			break;
		case 'z':
			charToPut = 'Z';
			break;

		default:
			charToPut = charToPut;
		}
	}
	ReadKeyboard::putchar(charToPut);
	return true;
}

const char* ReadKeyboard::GetString() {
	textstring[29]='\0';
	return &textstring[0];
}