cleaned working tree

1 files changed, 351 insertions, 0 deletions

diff --git a/cRender.cpp b/cRender.cpp
new file mode 100644
index 0000000..6d7a70a
--- /dev/null
+++ b/cRender.cpp
@@ -0,0 +1,351 @@
+#include "cRender.h"
+
+
+cRender::cRender(char _backound, WORD _color, int _sx, int _sy)
+{
+	bBlockRender = false; //If this Constructor is used, this instance is not inherited, thus render() doesn't need to be blocked
+	iLastError = _OK_;
+	sizeX = 0;
+	sizeY = 0;
+
+	cBackound = _backound;
+	wBackColor = _color;
+
+#ifdef __linux__ //In Linux, setting Console size is not supported, so it gets Size of Console (Window) instead.
+
+	struct winsize w;
+  ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+
+	wDefColor = _COL_DEFAULT;
+
+	setBufferSize( getConsoleWindowSize() );
+
+	if(sizeX < _sx || sizeY < _sy) //Notify Program tha screen is too small for desired Size
+		iLastError = _ERR_SCREEN_TOO_SMALL_;
+
+	setConsoleCursor(false);
+
+#elif _WIN32 //Windows Specific Code
+	hstdout = GetStdHandle(STD_OUTPUT_HANDLE); //get handle
+
+	GetConsoleScreenBufferInfo(hstdout, &csbi); //get current console settings
+	wDefColor = csbi.wAttributes; //Get default console color
+
+	SetConsoleWindowSize(_sx + 1, _sy + 1); //set the windows size to _sx * _sy (+1 so no scrolling accurs)
+
+	setBufferSize({_sx,_sy});
+#endif
+
+	setConsoleEcho(false);
+	clear(true); //Init backround array
+	//forceReRender();
+}//render()
+
+
+cRender::cRender() {}
+
+cRender::~cRender()
+{
+	//Free allocated memory
+	for (int i = 0; i < sizeX; i++) {
+		free(cScreen[i]);
+		free(wColor[i]);
+		free(bChanged[i]);
+	}
+
+	free(cScreen);
+	free(wColor);
+	free(bChanged);
+
+	setConsoleEcho(true);
+	
+	#ifdef __linux__
+	setConsoleCursor(true);
+	#endif
+}
+
+int cRender::drawPoint(char _c, sPos _pos, bool _overrideCollision, WORD _color)
+{
+	if (_pos.x >= sizeX || _pos.y >= sizeY || _pos.x < 0 || _pos.y < 0)
+		return _ERR_COORDINATES_INVALID_;
+
+	if (cScreen[_pos.x][_pos.y] != cBackound && _overrideCollision != true) //detect Collsision
+		return _COLLISION_;
+
+	cScreen[_pos.x][_pos.y] = _c;
+	if (_color == _COL_DEFAULT) //_COL_DEFAULT is NOT a proper colorcode!
+		wColor[_pos.x][_pos.y] = wDefColor;
+	else
+		wColor[_pos.x][_pos.y] = _color;
+
+	if(!bBlockRender) //Changemap is not allocated in inherited Classes
+		bChanged[_pos.x][_pos.y] = true;
+
+	return 0;
+}
+
+int cRender::drawLine(char _c, sPos _pos1, sPos _pos2, bool _overrideCollision, WORD _color)
+{
+	if (_pos1.x == _pos2.x)	{ //Horizontal line
+		for (int i = _pos1.y; i <= _pos2.y; i++)
+		{
+			drawPoint(_c, sPos{_pos1.x, i}, _overrideCollision, _color);
+		}
+	}
+	else if (_pos1.y == _pos2.y) { //Vertical line
+		for (int i = _pos1.x; i <= _pos2.x; i++)
+		{
+			drawPoint(_c, sPos{ i, _pos1.y }, _overrideCollision, _color);
+		}
+	}
+	else { //Diagonal Line
+		int dX = _pos1.x - _pos2.x;
+		int dY = _pos1.y - _pos2.y;
+		float fGradient = (float)dY / (float)dX;
+
+		for (int i = 0; i <= abs(dX); i++)
+		{
+			drawPoint(_c, sPos{i + _pos1.x, (int)(i * fGradient + _pos1.y + 0.5)}, _overrideCollision, _color); //+0.5 for rounding error
+		}
+	}
+
+	return 0;
+}
+
+int cRender::drawText(string _s, sPos _pos, WORD _color)
+{
+	for (int i = 0; i < _s.length(); i++)
+	{
+		drawPoint(_s[i], sPos{ i + _pos.x,_pos.y }, true,  _color);
+	}
+	return 0;
+}
+
+int cRender::drawRectangle(char _border, char _fill, sPos _pos1, sPos _pos2, WORD _borderColor, WORD _fillColor)
+{
+	//Draw the four outside lines
+	drawLine(_border, _pos1, sPos{ _pos1.x, _pos2.y }, true, _borderColor);
+	drawLine(_border, _pos1, sPos{ _pos2.x, _pos1.y }, true, _borderColor);
+	drawLine(_border, sPos{ _pos1.x, _pos2.y }, _pos2, true, _borderColor);
+	drawLine(_border, sPos{ _pos2.x, _pos1.y }, _pos2, true, _borderColor);
+
+	//Fill rectangle if _fill isn't NULL
+	if (_fill) {
+		for (int i = _pos1.y + 1; i < _pos2.y; i++) {
+			for (int o = _pos1.x + 1; o < _pos2.x; o++) {
+				drawPoint(_fill, sPos{ o,i }, true, _fillColor);
+			}
+		}
+	}
+
+	return 0;
+}
+
+int cRender::render(void)
+{
+	if (bBlockRender)
+		return _ERR_RENDER_BLOCKED_BY_CHILD_;
+
+	setBufferSize(getConsoleWindowSize());
+
+	for (int i = 0; i < sizeY; i++) {
+		for (int o = 0; o < sizeX; o++) {
+			gotoxy(o,i); //Moving this out of if fixed Render problem... Not optimal, though better for performance
+			if(bChanged[o][i])
+			{
+				#ifdef _WIN32
+
+				SetConsoleTextAttribute(hstdout, wColor[o][i] | _COL_INTENSITY);
+				//cout << cScreen[o][i];
+				printf("%c", cScreen[o][i]);
+
+				#elif __linux__
+				//cout << "\033["<< wColor[o][i] <<"m"<< cScreen[o][i];
+				printf("\033[%im%c", wColor[o][i], cScreen[o][i]);
+				#endif
+			}
+		bChanged[o][i] = false;
+		}
+
+	}
+
+	gotoxy(sizeX - 1, sizeY - 1);
+
+	return 0;
+}
+
+int cRender::clear(bool _forceReRender)
+{
+	for (int i = 0; i < sizeY; i++) {
+		for (int o = 0; o < sizeX; o++) {
+			if(((cScreen[o][i] == cBackound) && (wColor[o][i] == wBackColor)) && !_forceReRender)
+				bChanged[o][i] 	= false;
+			else
+			{
+				cScreen[o][i] 	= cBackound;
+				wColor[o][i] 		= wBackColor;
+				bChanged[o][i] 	= true;
+			}
+		}
+	}
+	return 0;
+}
+
+int cRender::clear()
+{
+	return clear(false);
+}
+
+
+#ifdef _WIN32
+//Source: http://www.cplusplus.com/forum/windows/121444/
+int cRender::SetConsoleWindowSize(int x, int y)
+{
+	HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);
+
+	if (h == INVALID_HANDLE_VALUE)
+		return 1;
+
+	CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
+	if (!GetConsoleScreenBufferInfo(h, &bufferInfo))
+		return 1;
+
+	SMALL_RECT& winInfo = bufferInfo.srWindow;
+	COORD windowSize = { winInfo.Right - winInfo.Left + 1, winInfo.Bottom - winInfo.Top + 1 };
+
+	if (windowSize.X > x || windowSize.Y > y)
+	{
+		// window size needs to be adjusted before the buffer size can be reduced.
+		SMALL_RECT info =
+		{
+			0, 0,
+			x < windowSize.X ? x - 1 : windowSize.X - 1,
+			y < windowSize.Y ? y - 1 : windowSize.Y - 1
+		};
+
+		if (!SetConsoleWindowInfo(h, TRUE, &info))
+			return 1;
+	}
+
+	COORD size = { x, y };
+	if (!SetConsoleScreenBufferSize(h, size))
+		return 1;
+
+	SMALL_RECT info = { 0, 0, x - 1, y - 1 };
+	if (!SetConsoleWindowInfo(h, TRUE, &info))
+		return 1;
+}
+#endif
+
+int cRender::getLastError()
+{
+	return iLastError;
+}
+
+#ifdef _WIN32
+void cRender::gotoxy( int x, int y )
+{
+  COORD p = { x, y };
+  SetConsoleCursorPosition( GetStdHandle( STD_OUTPUT_HANDLE ), p );
+}
+
+#elif __linux__
+
+void cRender::gotoxy( int x, int y )
+{
+  int err;
+  if (!cur_term)
+    setupterm( NULL, STDOUT_FILENO, &err );
+  putp( tparm( tigetstr( "cup" ), y, x, 0, 0, 0, 0, 0, 0, 0 ) );
+}
+
+sPos cRender::getConsoleWindowSize()
+{
+	struct winsize w;
+  ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+
+	return {w.ws_col, w.ws_row - 1};
+}
+#endif
+
+void cRender::setBufferSize(sPos _size)
+{
+	if(_size.x == sizeX && _size.y == sizeY)
+		return;
+
+	if(sizeX!=0 && sizeY!=0) //resize. delete first
+	{
+		for (int i = 0; i < sizeX; i++) {
+			free(cScreen[i]);
+			free(wColor[i]);
+			free(bChanged[i]);
+		}
+
+		free(cScreen);
+		free(wColor);
+		free(bChanged);
+	}
+
+	sizeX = _size.x;
+	sizeY = _size.y;
+
+	//Initialize 2D array
+	cScreen = (char**)malloc(sizeof *cScreen * sizeX);
+	for (int i = 0; i < sizeX; i++)
+		cScreen[i] = (char*)malloc(sizeof *cScreen[i] * sizeY);
+
+	wColor = (WORD**)malloc(sizeof *wColor * sizeX);
+	for (int i = 0; i < sizeX; i++)
+		wColor[i] = (WORD*)malloc(sizeof *wColor[i] * sizeY);
+
+	bChanged = (bool**)malloc(sizeof *bChanged * sizeX);
+	for (int i = 0; i < sizeX; i++)
+		bChanged[i] = (bool*)malloc(sizeof *bChanged[i] * sizeY);
+
+	clear(true);
+}
+
+sPos cRender::getSize()
+{
+	return {sizeX, sizeY};
+}
+
+void cRender::forceReRender()
+{
+	for (int i = 0; i < sizeY; i++) {
+		for (int o = 0; o < sizeX; o++) {
+				bChanged[o][i] 	= true;
+		}
+	}
+}
+
+void cRender::setConsoleEcho(bool _enable)
+{
+#ifdef WIN32
+    HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
+    DWORD mode;
+    GetConsoleMode(hStdin, &mode);
+
+    if( !_enable )
+        mode &= ~ENABLE_ECHO_INPUT;
+    else
+        mode |= ENABLE_ECHO_INPUT;
+
+    SetConsoleMode(hStdin, mode );
+
+#else
+    struct termios tty;
+    tcgetattr(STDIN_FILENO, &tty);
+    if( !_enable )
+        tty.c_lflag &= ~ECHO;
+    else
+        tty.c_lflag |= ECHO;
+
+    (void) tcsetattr(STDIN_FILENO, TCSANOW, &tty);
+#endif
+}
+
+void cRender::setConsoleCursor(bool _enable)
+{
+	_enable ? write (STDOUT_FILENO, "\e[?25h", 6) : write (STDOUT_FILENO, "\e[?25l", 6);
+}