missing navmesh demo and small fixes

3d/navmesh/engine.cfg

@@ -0,0 +1,9 @@
+[application]
+
+name="Navmesh Demo"
+main_scene="res://navmesh.scn"
+icon="res://icon.png"
+
+[rasterizer]
+
+shadow_filter=3

3d/navmesh/navmesh.gd

@@ -0,0 +1,110 @@
+
+extends Navigation
+
+# member variables here, example:
+# var a=2
+# var b="textvar"
+
+const SPEED=4.0
+
+var camrot=0.0
+
+var begin=Vector3()
+var end=Vector3()
+var m = FixedMaterial.new()
+
+var path=[]
+
+func _process(delta):
+
+
+	if (path.size()>1):
+	
+		var to_walk = delta*SPEED
+		var to_watch = Vector3(0,1,0)
+		while(to_walk>0 and path.size()>=2):
+			var pfrom = path[path.size()-1]
+			var pto = path[path.size()-2]
+			to_watch = (pto - pfrom).normalized()
+			var d = pfrom.distance_to(pto)
+			if (d<=to_walk):
+				path.remove(path.size()-1)
+				to_walk-=d
+			else:
+				path[path.size()-1] = pfrom.linear_interpolate(pto,to_walk/d)
+				to_walk=0
+				
+		var atpos = path[path.size()-1]
+		var atdir = to_watch
+		atdir.y=0
+		
+		var t = Transform()
+		t.origin=atpos
+		t=t.looking_at(atpos+atdir,Vector3(0,1,0))
+		get_node("robot_base").set_transform(t)
+		
+		if (path.size()<2):
+			path=[]
+			set_process(false)
+				
+	else:
+		set_process(false)
+
+var draw_path=false
+
+func _update_path():
+
+	var p = get_simple_path(begin,end,true)
+	path=Array(p) # Vector3array to complex to use, convert to regular array
+	path.invert()
+	set_process(true)
+
+	if (draw_path):
+		var im = get_node("draw")
+		im.set_material_override(m)
+		im.clear()
+		im.begin(Mesh.PRIMITIVE_POINTS,null)
+		im.add_vertex(begin)
+		im.add_vertex(end)
+		im.end()
+		im.begin(Mesh.PRIMITIVE_LINE_STRIP,null)
+		for x in p:
+			im.add_vertex(x)
+		im.end()
+
+func _input(ev):
+
+	if (ev.type==InputEvent.MOUSE_BUTTON and ev.button_index==BUTTON_LEFT and ev.pressed):
+                
+		var from = get_node("cambase/Camera").project_position(ev.pos)
+		var to = from+get_node("cambase/Camera").project_ray_normal(ev.pos)*100
+		var p = get_closest_point_to_segment(from,to)
+	
+		begin=get_closest_point(get_node("robot_base").get_translation())
+		end=p
+
+		_update_path()
+		
+	if (ev.type==InputEvent.MOUSE_MOTION):
+		if (ev.button_mask&BUTTON_MASK_MIDDLE):
+			
+			camrot+=ev.relative_x*0.005
+			get_node("cambase").set_rotation(Vector3(0,camrot,0))
+			print("camrot ", camrot)
+
+		
+
+func _ready():
+	# Initalization here
+	set_process_input(true)
+	m.set_line_width(3)
+	m.set_point_size(3)
+	m.set_fixed_flag(FixedMaterial.FLAG_USE_POINT_SIZE,true)
+	m.set_flag(Material.FLAG_UNSHADED,true)
+	#begin = get_closest_point(get_node("start").get_translation())
+	#end = get_closest_point(get_node("end").get_translation())
+	#call_deferred("_update_path")
+
+	pass
+
+