From: John Tsiombikas <nuclear@mutantstargoat.com>
Date: Sat, 17 Sep 2016 21:58:40 +0000 (+0300)
Subject: move gears along their axis with the mousewheel
X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=antikythera;a=commitdiff_plain;h=b29d7193d03833109cfdda3ab576fe183efd8acf

move gears along their axis with the mousewheel
---

diff --git a/src/gear.cc b/src/gear.cc
index f6872cf..c916e76 100644
--- a/src/gear.cc
+++ b/src/gear.cc
@@ -48,6 +48,11 @@ void Gear::set_axis(const Vec3 &axis)
 	xform_valid = false;
 }
 
+const Vec3 &Gear::get_axis() const
+{
+	return axis;
+}
+
 void Gear::set_position(const Vec3 &pos)
 {
 	this->pos = pos;
diff --git a/src/gear.h b/src/gear.h
index e8796e9..7f230e4 100644
--- a/src/gear.h
+++ b/src/gear.h
@@ -78,6 +78,7 @@ public:
 	// of the gear, to achieve the required tooth pitch
 	void set_teeth(int nt, float tooth_pitch);
 	void set_axis(const Vec3 &axis);
+	const Vec3 &get_axis() const;
 	void set_position(const Vec3 &pos);
 	const Vec3 &get_position() const;
 	Vec3 get_global_position() const;	// taking parent gear into account
diff --git a/src/main.cc b/src/main.cc
index f98f190..ce8466e 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -215,6 +215,14 @@ static void mouse(int bn, int st, int x, int y)
 			sel_gear = 0;
 		}
 	}
+
+	if(bidx == 3 || bidx == 4) {	/* wheel */
+		if(hover_gear) {
+			float dz = bidx == 4 ? 1 : -1;
+			hover_gear->set_position(hover_gear->get_position() + hover_gear->get_axis() * dz);
+			machine->invalidate_meshing();
+		}
+	}
 }
 
 static void motion(int x, int y)