1 files changed, 44 insertions, 0 deletions
diff --git a/SetNeighborTileBehavior.cpp b/SetNeighborTileBehavior.cpp
new file mode 100644
index 0000000..d934d4b
--- /dev/null
+++ b/SetNeighborTileBehavior.cpp
@@ -0,0 +1,44 @@
+#include <memory>
+
+#include "SetNeighborTileBehavior.h"
+#include "CreateArtistTileBehavior.h"
+#include "Artist.h"
+#include "Tile.h"
+
+using namespace std;
+
+SetNeighborTileBehavior SetNeighborTileBehavior::instance { SetNeighborTileBehavior::type };
+
+void SetNeighborTileBehavior::step(Artist * artist) {
+	this->interactions++;
+	if (dx != 0 || dy != 0) return;
+	if (artist == nullptr) return;
+
+	if (artist->data.vx == 0) dx = 1;
+	if (artist->data.vy == 0) dy = 1;
+}
+
+static void update_neighbor(Tile & here, int dx, int dy) {
+	if (dx == 0 && dy == 0) return;
+	Tile * neighbor = here.get_neighbor(dx, dy);
+	if (neighbor == &here) return;
+	if (neighbor == nullptr) return;
+
+	neighbor->set_type(SetNeighborTileBehavior::type);
+}
+
+void SetNeighborTileBehavior::update(Tile & tile) {
+	if (this->interactions < 1) return;
+
+	update_neighbor(tile, this->dx, this->dy);
+	update_neighbor(tile, -this->dx, -this->dy);
+
+	tile.set_type(CreateArtistTileBehavior::type);
+}
+
+unique_ptr<TileBehavior> SetNeighborTileBehavior::clone(Museum & museum) {
+	auto instance = new SetNeighborTileBehavior();
+	instance->museum = &museum;
+	return unique_ptr<TileBehavior>(instance);
+}
+