1 files changed, 183 insertions, 0 deletions
diff --git a/AmpelJonas/cRender.cpp b/AmpelJonas/cRender.cpp
new file mode 100644
index 0000000..7df1320
--- /dev/null
+++ b/AmpelJonas/cRender.cpp
@@ -0,0 +1,183 @@
+#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
+
+	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)
+
+	cBackound = _backound;
+	wBackColor = _color;
+
+	sizeX = _sx;
+	sizeY = _sy;
+
+	//Initialize 2D array
+	cScreen = (char**)malloc(sizeof *cScreen * _sx);
+	for (int i = 0; i < _sx; i++)
+		cScreen[i] = (char*)malloc(sizeof *cScreen[i] * _sy);
+
+	wColor = (WORD**)malloc(sizeof *wColor * _sx);
+	for (int i = 0; i < _sx; i++)
+		wColor[i] = (WORD*)malloc(sizeof *wColor[i] * _sy);
+
+	clear(); //Init backround array
+}
+
+cRender::cRender() {}
+
+cRender::~cRender()
+{
+	//Free allocated memory
+	for (int i = 0; i < sizeX; i++) {
+		free(cScreen[i]);
+		free(wColor[i]);
+	}
+
+	free(cScreen);
+	free(wColor);
+}
+
+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;
+
+	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)
+{
+	SetConsoleCursorPosition(hstdout, COORD{ 0,0 }); //Set cursor position to be able to alter the image without the effect of it shifting to the top
+
+	if (bBlockRender)
+		return _ERR_RENDER_BLOCKED_BY_CHILD_;
+
+	for (int i = 0; i < sizeY; i++) {
+		for (int o = 0; o < sizeX; o++) {
+			SetConsoleTextAttribute(hstdout, wColor[o][i] | _COL_INTENSITY);
+			cout << cScreen[o][i];
+		}
+		cout << endl; //New Line Feed
+	}
+	return 0;
+}
+
+int cRender::clear(void)
+{
+	for (int i = 0; i < sizeY; i++) {
+		for (int o = 0; o < sizeX; o++) {
+			cScreen[o][i] = cBackound;
+			wColor[o][i] = wBackColor;
+		}
+	}
+	return 0;
+}
+
+//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;
+}
+\ No newline at end of file