4 files changed, 31 insertions, 12 deletions
diff --git a/ui/builders/join.cpp b/ui/builders/join.cpp
index cc2ca2d..caa635f 100644
--- a/ui/builders/join.cpp
+++ b/ui/builders/join.cpp
@@ -1,11 +1,6 @@
 #include "join.h"
 #include <game/geoData.h>
 
-void
-BuilderJoin::render(const Shader &) const
-{
-}
-
 std::string
 BuilderJoin::hint() const
 {
@@ -16,6 +11,19 @@ BuilderJoin::hint() const
 }
 
 void
+BuilderJoin::move(Network * network, const GeoData *, const SDL_MouseMotionEvent &, const Ray & ray)
+{
+	if (p1) {
+		if (const auto p = network->intersectRayNodes(ray)) {
+			candidateLinks.objects = network->candidateJoins(p1->pos, p->pos);
+		}
+		else {
+			candidateLinks.removeAll();
+		}
+	}
+}
+
+void
 BuilderJoin::click(Network * network, const GeoData *, const SDL_MouseButtonEvent & e, const Ray & ray)
 {
 	switch (e.button) {
@@ -24,6 +32,7 @@ BuilderJoin::click(Network * network, const GeoData *, const SDL_MouseButtonEven
 				if (p1) {
 					create(network, p1, p);
 					p1.reset();
+					candidateLinks.removeAll();
 				}
 				else {
 					p1 = p;
diff --git a/ui/builders/join.h b/ui/builders/join.h
index 30d39cd..bb0bd4c 100644
--- a/ui/builders/join.h
+++ b/ui/builders/join.h
@@ -5,9 +5,9 @@ class Network;
 class GeoData;
 
 class BuilderJoin : public EditNetwork::Builder {
-	void render(const Shader &) const override;
 	std::string hint() const override;
 	void click(Network * network, const GeoData * geoData, const SDL_MouseButtonEvent & e, const Ray & ray) override;
+	void move(Network * network, const GeoData * geoData, const SDL_MouseMotionEvent & e, const Ray & ray) override;
 
 	void create(Network * network, const Node::Ptr & p1, const Node::Ptr & p2) const;
 
diff --git a/ui/builders/straight.cpp b/ui/builders/straight.cpp
index 7024746..477b40d 100644
--- a/ui/builders/straight.cpp
+++ b/ui/builders/straight.cpp
@@ -1,11 +1,6 @@
 #include "straight.h"
 #include <game/geoData.h>
 
-void
-BuilderStraight::render(const Shader &) const
-{
-}
-
 std::string
 BuilderStraight::hint() const
 {
@@ -16,6 +11,19 @@ BuilderStraight::hint() const
 }
 
 void
+BuilderStraight::move(Network * network, const GeoData * geoData, const SDL_MouseMotionEvent &, const Ray & ray)
+{
+	if (p1) {
+		if (const auto p = geoData->intersectRay(ray)) {
+			candidateLinks.objects = network->candidateStraight(*p1, *p);
+		}
+		else {
+			candidateLinks.removeAll();
+		}
+	}
+}
+
+void
 BuilderStraight::click(Network * network, const GeoData * geoData, const SDL_MouseButtonEvent & e, const Ray & ray)
 {
 	switch (e.button) {
@@ -23,12 +31,14 @@ BuilderStraight::click(Network * network, const GeoData * geoData, const SDL_Mou
 			if (const auto p = geoData->intersectRay(ray)) {
 				if (p1) {
 					create(network, *p1, *p);
+					candidateLinks.removeAll();
 				}
 				p1 = *p;
 			}
 			return;
 		case SDL_BUTTON_MIDDLE:
 			p1.reset();
+			candidateLinks.removeAll();
 			return;
 	}
 }
diff --git a/ui/builders/straight.h b/ui/builders/straight.h
index 77847dd..1cde2b0 100644
--- a/ui/builders/straight.h
+++ b/ui/builders/straight.h
@@ -5,9 +5,9 @@ class Network;
 class GeoData;
 
 class BuilderStraight : public EditNetwork::Builder {
-	void render(const Shader &) const override;
 	std::string hint() const override;
 	void click(Network * network, const GeoData * geoData, const SDL_MouseButtonEvent & e, const Ray & ray) override;
+	void move(Network * network, const GeoData * geoData, const SDL_MouseMotionEvent & e, const Ray & ray) override;
 
 	void create(Network * network, glm::vec3 p1, glm::vec3 p2) const;