X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;ds=sidebyside;f=src%2Fgraphics%2FCanvas.cpp;h=768037efbc04bbcdc3269a7de930af4aaaf60135;hb=HEAD;hp=e4befc0bf04886003dc3d8f04ce409c0d5f15c46;hpb=1129b8ac89f1e614f69793227ccec90157708aea;p=space.git

diff --git a/src/graphics/Canvas.cpp b/src/graphics/Canvas.cpp
index e4befc0..768037e 100644
--- a/src/graphics/Canvas.cpp
+++ b/src/graphics/Canvas.cpp
@@ -95,14 +95,23 @@ 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_RenderDrawPoints(canv, points, 4);
+	SDL_RenderDrawLines(canv, points, 4);
 }
 
 void Canvas::Quad(Vector<int> v1, Vector<int> v2, Vector<int> v3, Vector<int> v4) {
 	SDL_Point points[5] = { v1, v2, v3, v4, v1 };
-	SDL_RenderDrawPoints(canv, points, 5);
+	SDL_RenderDrawLines(canv, points, 5);
 }
 
 
@@ -174,7 +183,7 @@ void Grid2Impl(
 		canv.SetColor(c1);
 		canv.FillRect(pos, size);
 		canv.SetColor(c2);
-		GridImpl(canv, pos, size, step);
+		GridImpl(canv, pos, size, step * Vector<Scalar>(n));
 		return;
 	}