X-Git-Url: http://git.localhorst.tv/?p=space.git;a=blobdiff_plain;f=src%2Fgraphics%2FCanvas.cpp;h=6241ab30dcb00844154406e5a753706fd8b1f2df;hp=93e3f212a9999fd3259c13df676aa4e85cfcd596;hb=ffd31714f3edb64ebe16b65878750c6cc5c7e884;hpb=699437a474de8b87ccb6749d44adf740e680d620

diff --git a/src/graphics/Canvas.cpp b/src/graphics/Canvas.cpp
index 93e3f21..6241ab3 100644
--- a/src/graphics/Canvas.cpp
+++ b/src/graphics/Canvas.cpp
@@ -95,6 +95,15 @@ void Canvas::Cross(Vector<int> pos, int extent) {
 		Vector<int>(pos.x, pos.y + extent));
 }
 
+void Canvas::Arrow(Vector<int> from, Vector<int> to) {
+	Line(from, to);
+	Vector<float> delta(to - from);
+	delta = delta / Length(delta);
+
+	Line(to, to + Vector<int>(Rotate90(delta) * 5.0f - (delta * 5.0f)));
+	Line(to, to + Vector<int>(Rotate270(delta) * 5.0f - (delta * 5.0f)));
+}
+
 void Canvas::Triangle(Vector<int> v1, Vector<int> v2, Vector<int> v3) {
 	SDL_Point points[4] = { v1, v2, v3, v1 };
 	SDL_RenderDrawLines(canv, points, 4);