Added triangle brush, fixes #47

1 files changed, 46 insertions, 0 deletions

diff --git a/src/game/TriangleBrush.h b/src/game/TriangleBrush.h
new file mode 100644
index 0000000..7d537bd
--- /dev/null
+++ b/src/game/TriangleBrush.h
@@ -0,0 +1,46 @@
+/*
+ * TriangleBrush.h
+ *
+ *  Created on: Jan 26, 2012
+ *      Author: Savely Skresanov
+ */
+
+#ifndef TRIANGLEBRUSH_H_
+#define TRIANGLEBRUSH_H_
+
+#include <cmath>
+#include "Brush.h"
+
+class TriangleBrush: public Brush
+{
+public:
+	TriangleBrush(ui::Point size_):
+		Brush(size_)
+	{
+		SetRadius(size_);
+	};
+	virtual void GenerateBitmap()
+	{
+		if(bitmap)
+			delete[] bitmap;
+		bitmap = new unsigned char[size.X*size.Y];
+		int rx = radius.X;
+		int ry = radius.Y;
+		for(int x = -rx; x <= rx; x++)
+		{
+			for(int y = -ry; y <= ry; y++)
+			{
+				if ((abs((rx+2*x)*ry+rx*y) + abs(2*rx*(y-ry)) + abs((rx-2*x)*ry+rx*y))<=(4*rx*ry))
+				{
+					bitmap[(y+ry)*(size.X)+x+rx] = 255;
+				}
+				else
+				{
+					bitmap[(y+ry)*(size.X)+x+rx] = 0;
+				}
+			}
+		}
+	}
+};
+
+#endif /* TRIANGLEBRUSH_H_ */