Mobs: Add yaw rotation microtask template

mods/rp_mobs/task_templates.lua

@@ -1,5 +1,6 @@
 local PATH_DEBUG = true
 local PATH_DISTANCE_TO_GOAL_POINT = 0.7
+local YAW_PRECISION = 10000
 
 -- Task templates
 
@@ -79,6 +80,43 @@ rp_mobs.microtasks.pathfind_and_walk_to = function(target_pos, searchdistance, m
 	return rp_mobs.create_microtask(mtask)
 end
 
+-- Rotate yaw linearly over time
+rp_mobs.microtasks.rotate_yaw_smooth = function(yaw, time)
+	local label
+	if yaw == "random" then
+		label = "rotate yaw randomly"
+	else
+		label = "rotate yaw to "..string.format("%.3f", yaw)
+	end
+	return rp_mobs.create_microtask({
+		label = label,
+		on_step = function(self, mob, dtime)
+			local sd = self.statedata
+			if not sd.target_yaw then
+				if yaw == "random" then
+					yaw = (math.random(0, YAW_PRECISION) / YAW_PRECISION) * (math.pi*2)
+				end
+				sd.target_yaw = yaw
+			end
+			if not sd.start_yaw then
+				sd.start_yaw = mob.object:get_yaw()
+			end
+			if not sd.timer then
+				sd.timer = 0
+			end
+			sd.timer = sd.timer + dtime
+			local timer = math.min(sd.timer, time)
+			local time_progress = 1 - ((time - timer) / time)
+
+			local current_yaw = sd.start_yaw + (sd.target_yaw - sd.start_yaw) * time_progress
+			mob.object:set_yaw(current_yaw)
+		end,
+		is_finished = function(self, mob)
+			return self.statedata.timer and self.statedata.timer >= time
+		end,
+	})
+end
+
 -- Do nothing for the given time in seconds
 rp_mobs.microtasks.sleep = function(time)
 	return rp_mobs.create_microtask({

mods/rp_mobs_mobs/boar.lua

@@ -20,11 +20,11 @@ rp_mobs.register_mob("rp_mobs_mobs:boar", {
 		if #nodes > 0 then
 			local n = math.random(1, #nodes)
 			local endpos = vector.add(vector.new(0,1,0), nodes[n])
-			local microtask1 = rp_mobs.microtasks.pathfind_and_walk_to(endpos, 100, 1, 4)
-			rp_mobs.add_microtask_to_task(self, microtask1, task)
+			local mt_pathfind = rp_mobs.microtasks.pathfind_and_walk_to(endpos, 100, 1, 4)
+			rp_mobs.add_microtask_to_task(self, mt_pathfind, task)
 		end
-		local microtask2 = rp_mobs.microtasks.sleep(math.random(500, 2000)/1000)
-		rp_mobs.add_microtask_to_task(self, microtask2, task)
+		local mt_sleep = rp_mobs.microtasks.sleep(math.random(500, 2000)/1000)
+		rp_mobs.add_microtask_to_task(self, mt_sleep, task)
 		rp_mobs.add_task(self, task)
 	end,
 	entity_definition = {

mods/rp_mobs_mobs/dummy.lua

@@ -0,0 +1,38 @@
+-- TODO: Change to rp_mobs_mobs when ready
+local S = minetest.get_translator("mobs")
+
+local dummy_texture = "default_stone.png^[colorize:#88FF00:92"
+
+-- Dummy mob only for testing
+rp_mobs.register_mob("rp_mobs_mobs:dummy", {
+	description = S("Dummy"),
+	decider = function(self)
+		local task = rp_mobs.create_task({label="Dummy stuff"})
+		rp_mobs.add_microtask_to_task(self, rp_mobs.microtasks.rotate_yaw_smooth("random", 1), task)
+		local sleep_time = math.random(500, 2000)/1000
+		local mt_sleep = rp_mobs.microtasks.sleep(sleep_time)
+		rp_mobs.add_microtask_to_task(self, mt_sleep, task)
+		rp_mobs.add_task(self, task)
+	end,
+	entity_definition = {
+		hp_max = 1,
+		physical = true,
+		collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+		selectionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5, rotate=true},
+		visual = "cube",
+		textures = { dummy_texture, dummy_texture, dummy_texture, dummy_texture, dummy_texture, dummy_texture },
+		makes_footstep_sound = false,
+		on_activate = function(self)
+			rp_mobs.init_physics(self)
+			rp_mobs.init_tasks(self)
+		end,
+		on_step = function(self, dtime)
+			rp_mobs.handle_physics(self)
+			rp_mobs.handle_tasks(self, dtime)
+			rp_mobs.decide(self)
+		end,
+		on_death = rp_mobs.on_death_default,
+	},
+})
+
+rp_mobs.register_mob_item("rp_mobs_mobs:dummy", dummy_texture)

mods/rp_mobs_mobs/init.lua

@@ -1,5 +1,13 @@
+-- Crafting stuff
 dofile(minetest.get_modpath("rp_mobs_mobs").."/crafts.lua")
 
+-- Animals
 dofile(minetest.get_modpath("rp_mobs_mobs").."/boar.lua")
 
+-- Monsters (TODO)
+
+-- Dummy mob used only for testing
+dofile(minetest.get_modpath("rp_mobs_mobs").."/dummy.lua")
+
+-- Other
 dofile(minetest.get_modpath("rp_mobs_mobs").."/achievements.lua")