water_life/animals/crocodile.lua

local random = water_life.random
local abs = math.abs
local pi = math.pi
local floor = math.floor
local sqrt = math.sqrt
local max = math.max
local min = math.min
local pow = math.pow
local sign = math.sign
local rad = math.rad





local function croc_brain(self)
	if self.hp <= 0 then	
		mobkit.clear_queue_high(self)
		water_life.handle_drops(self)
		mobkit.hq_die(self)
		return
	end
	
	if mobkit.timer(self,5) then
		
		local land = mobkit.recall(self,"landlife")
		local water = mobkit.recall(self,"waterlife")
		
		if land then
			land = math.floor(os.clock()-land)
			if random(500) < land then
				--minetest.chat_send_all("Go to water")
				mobkit.clear_queue_high(self)
				water_life.hq_go2water(self,15)
				
			end
		end
		
		if water then
			water = math.floor(os.clock()-water)
			if random (500) < water then
				--minetest.chat_send_all("Go to land")
				mobkit.clear_queue_high(self)
				water_life.hq_go2land(self,15)
			end
		end
		
		--minetest.chat_send_all("Land: "..dump(land).." :  Water: "..dump(water))
	end
	
	if mobkit.timer(self,1) then
		
	if not mobkit.recall(self,"landlife") and not mobkit.recall(self,"waterlife") then
		mobkit.remember(self,"waterlife",os.clock())
	end
		
	if self.isinliquid then
		if mobkit.recall(self,"landlife") then
			mobkit.remember(self,"waterlife",os.clock())
			mobkit.forget(self,"landlife")
		end
	end
	
	if self.isonground then
		if mobkit.recall(self,"waterlife") then
			mobkit.remember(self,"landlife",os.clock())
			mobkit.forget(self,"waterlife")
		end
	end
		
        local prty = mobkit.get_queue_priority(self)
	   
		if prty < 20 then 
			local target = mobkit.get_nearby_player(self)
			local aliveinwater = target and mobkit.is_alive(target) and water_life.isinliquid(target)--mobkit.is_in_deep(target)
			local food = water_life.feed_shark(self)
			
			if target and mobkit.is_alive(target)  and target:get_attach() == nil and water_life.isinliquid(target) then --.is_in_deep(target) then
				
				local dist = water_life.dist2tgt(self,target)
				if dist > 3 then
					water_life.hq_water_attack(self,target,21,7,true)
				end
			end
			
			

			if food and mobkit.is_in_deep(food) and not aliveinwater then
								local dist = water_life.dist2tgt(self,food)
								if dist > 3 then
									mobkit.clear_queue_high(self)
									water_life.hq_water_attack(self,food,21,7,true)
								end
			end
			
			if self.isinliquid then
				
				if target and mobkit.is_alive(target)  and target:get_attach() == nil and not water_life.isinliquid(target) then --.is_in_deep(target) then
					
					local dist = water_life.dist2tgt(self,target)
					if dist < 10 then
						mobkit.clear_queue_high(self)
						water_life.hq_go2land(self,20,target)
					end
					
				end
				
				if food and mobkit.is_alive(food) and not water_life.isinliquid(food) then
					
					local dist = water_life.dist2tgt(self,food)
					if dist < 10 then
						mobkit.clear_queue_high(self)
						water_life.hq_go2land(self,20,food)
					end
					
				end
			end
			
			if self.isonground then
				if target and mobkit.is_alive(target)  then
					local dist = water_life.dist2tgt(self,target)
					if dist < 7 then
						water_life.hq_hunt(self,21,target)
					end
				end
				
				if food and mobkit.is_alive(food) then
					local dist = water_life.dist2tgt(self,food)
					if dist < 7 then
						water_life.hq_hunt(self,25,food)
					end
				end
			end
				
		end
	end
	
	if mobkit.is_queue_empty_high(self) then
		if self.isinliquid then water_life.hq_aqua_roam(self,10,1) end
		if self.isonground then  water_life.hq_slow_roam(self,10) end
	end
	
	
	
end



minetest.register_entity("water_life:croc",{
											-- common props
	physical = true,
	stepheight = 0.1,				--EVIL!
	collide_with_objects = false,
	collisionbox = {-0.3, -0.1, -0.3, 0.3, 0.3, 0.3},
	visual = "mesh",
	mesh = "water_life_crocodile.b3d",
	textures = {"water_life_crocodile.png"},
	visual_size = {x = 5.5, y = 5.5},
	static_save = true,
	makes_footstep_sound = true,
	on_step = mobkit.stepfunc,	-- required
	on_activate = mobkit.actfunc,		-- required
	get_staticdata = mobkit.statfunc,
											-- api props
	springiness=0,
	buoyancy = 0.98,					-- portion of hitbox submerged
	max_speed = 9,                        
	jump_height = 1.26,
	view_range = water_life.abo * 12,
--	lung_capacity = 0, 		-- seconds
	max_hp = 50,
	timeout=300,
	drops = {
		{name = "default:diamond", chance = 5, min = 1, max = 5,},		
		{name = "water_life:meat_raw", chance = 2, min = 1, max = 5,},
	},
	attack={range=0.8,damage_groups={fleshy=7}},
	--sounds = {
	--	attack='water_life_sharkattack',
	--	},
	animation = {
		def={range={x=14,y=25},speed=5,loop=true},
		stand={range={x=1,y=1},speed=1,loop=false},
		walk={range={x=1,y=13},speed=5,loop=true},	
		swim={range={x=14,y=25},speed=5,loop=true},
		},
	
	brainfunc = croc_brain,
	
	on_punch=function(self, puncher, time_from_last_punch, tool_capabilities, dir)
		if mobkit.is_alive(self) then
			local hvel = vector.multiply(vector.normalize({x=dir.x,y=0,z=dir.z}),4)
			self.object:set_velocity({x=hvel.x,y=2,z=hvel.z})
			
			mobkit.hurt(self,tool_capabilities.damage_groups.fleshy or 1)

			if type(puncher)=='userdata' and puncher:is_player() then	-- if hit by a player
				mobkit.clear_queue_high(self)							-- abandon whatever they've been doing
				water_life.hq_water_attack(self,puncher,20,6,true)
			end
		end
	end,
})