Actions: Added some fundamental movement actions.

Places: Added functions for adding and getting places, and for finding places of specific types. Added beds, chairs and chest as places.
NPC: Added places map and action queue.

actions/actions.lua

@@ -0,0 +1,85 @@
+-- Actions code for Advanced NPC by Zorman2000
+---------------------------------------------------------------------------------------
+-- Action functionality
+---------------------------------------------------------------------------------------
+-- The NPCs will be able to perform five fundamental actions that will allow
+-- for them to perform any other kind of interaction in the world. These
+-- fundamental actions are: place a node, dig a node, put items on an inventory,
+-- take items from an inventory, find a node closeby (radius 3) and
+-- walk a step on specific direction. These actions will be set on an action queue. 
+-- The queue will have the specific steps, in order, for the NPC to be able to do 
+-- something (example, go to a specific place and put a chest there). The 
+-- fundamental actions are added to the action queue to make a complete task for the NPC.
+
+npc.actions = {}
+
+function npc.actions.rotate(args)
+  local self = args.self
+  local dir = args.dir
+  local yaw = 0
+  self.rotate = 0
+  if dir == npc.direction.north then
+    yaw = 315
+  elseif dir == npc.direction.east then
+    yaw = 225
+  elseif dir == npc.direction.south then
+    yaw = 135
+  elseif dir == npc.direction.west then
+    yaw = 45
+  end
+  self.object:setyaw(yaw)
+end
+
+-- This function will make the NPC walk one step on a 
+-- specifc direction. One step means one node. It returns 
+-- true if it can move on that direction, and false if there is an obstacle
+function npc.actions.walk_step(args)
+  local self = args.self
+  local dir = args.dir
+  local vel = {}
+  if dir == npc.direction.north then
+    vel = {x=0, y=0, z=1}
+  elseif dir == npc.direction.east then
+    vel = {x=1, y=0, z=0}
+  elseif dir == npc.direction.south then
+    vel = {x=0, y=0, z=-1}
+  elseif dir == npc.direction.west then
+    vel = {x=-1, y=0, z=0}
+  end
+  set_animation(self, "walk")
+  npc.rotate({self=self, dir=dir})
+  self.object:setvelocity(vel)
+end
+
+-- This action makes the NPC stand and remain like that
+function npc.actions.stand(args)
+  local self = args.self
+  -- Stop NPC
+  self.object:setvelocity({x=0, y=0, z=0})
+  -- Set stand animation
+  set_animation(self, "stand")
+end
+
+-- This action makes the NPC sit on the node where it is
+function npc.actions.sit(args)
+  local self = args.self
+  -- Stop NPC
+  self.object:setvelocity({x=0, y=0, z=0})
+  -- Set sit animation
+  self.object:set_animation({
+        x = npc.ANIMATION_SIT_START,
+        y = npc.ANIMATION_SIT_END},
+        self.animation.speed_normal, 0)
+end
+
+-- This action makes the NPC lay on the node where it is
+function npc.actions.lay(args)
+  local self = args.self
+  -- Stop NPC
+  self.object:setvelocity({x=0, y=0, z=0})
+  -- Set sit animation
+  self.object:set_animation({
+        x = npc.ANIMATION_LAY_START,
+        y = npc.ANIMATION_LAY_END},
+        self.animation.speed_normal, 0)
+end