Page 1 of 1
A simple mob
Posted:
Mon Oct 19, 2015 01:14by Don
I need a simple mob for a mini game I am making. I am wondering if it is better to use an existing mob api for this or write a new one.
The mob only needs to chase a player. There is no animation, punch or attack. I don't even want the player to be able to hit the mob.
I know very little about mobs so any advice would be appreciated.
Re: A simple mob
Posted:
Mon Oct 19, 2015 19:57by TenPlus1
For simplicity you could use the mods redo api but if the mob in question does nothing but follow the player then this code may be simple to implement, it spawns a cube that follows player.
Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.
- Code: Select all
local gravity = -10
minetest.register_entity("test:testy", {
hp_max = 1,
physical = true,
collide_with_objects = true,
visual = "cube",
visual_size = {x = 0.5, y = 0.5},
textures = {"sides.png", "sides.png", "sides.png", "sides.png", "front.png", "sides.png"},
velocity = {x=math.random(-1,1), y=0, z=math.random(-1,1)},
collisionbox = {-0.25, -0.25, -0.25, 0.25, 0.25, 0.25},
weight = 5, -- ??
is_visible = true,
automatic_rotate = true,
automatic_face_movement_dir = -90, -- set yaw direction in degrees, false to disable
stepheight = 1.1,
makes_footstep_sound = true,
floats = 1,
view_range = 10,
speed = 1,
jump_height = 5,
set_velocity = function(self, v)
if not v then v = 0 end
local yaw = self.object:getyaw()
self.object:setvelocity({x=math.sin(yaw) * -v, y=self.object:getvelocity().y, z=math.cos(yaw) * v})
end,
on_step = function(self, dtime)
-- every 1 second
self.timer = (self.timer or 0) + dtime
if self.timer < 1 then return end
self.timer = 0
-- make sure object floats (or not) when in water
if minetest.get_item_group(minetest.get_node(self.object:getpos()).name, "water") ~= 0 then
if self.floats == 1 then
self.object:setacceleration({x = self.object:getacceleration().x, y = 1.5, z = self.object:getacceleration().z})
end
else
self.object:setacceleration({x = self.object:getacceleration().x, y = gravity, z = self.object:getacceleration().z})
end
local s, p, dist, nod
-- find player to follow
for _,player in pairs(minetest.get_connected_players()) do
s = self.object:getpos()
p = player:getpos()
-- find distance
dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
if dist < self.view_range then
local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z}
local yaw = (math.atan(vec.z/vec.x)+math.pi/2)
if p.x > s.x then
yaw = yaw + math.pi
end
-- face player
self.object:setyaw(yaw)
-- find direction and show node facing
self.direction = {x = math.sin(yaw)*-1, y = 0, z = math.cos(yaw)}
nod = minetest.get_node_or_nil({x=s.x + self.direction.x,y=s.y+1,z=s.z + self.direction.z})
print ("facing node", nod.name, dist)
-- more than 2 nodes ahead then follow, otherwise stop
if dist > 2 then
if self.jump_height > 0 and self.object:getvelocity().y == 0 then
local v = self.object:getvelocity()
v.y = self.jump_height
self.object:setvelocity(v)
end
self.set_velocity(self, self.speed)
else
self.set_velocity(self, 0)
end
-- break look after player found
break
end
end
end,
})
Re: A simple mob
Posted:
Mon Oct 19, 2015 20:29by Don
Wow. Thanks!
Re: A simple mob
Posted:
Mon Oct 19, 2015 23:45by kaadmy
Don wrote:The mob only needs to chase a player. There is no animation, punch or attack. I don't even want the player to be able to hit the mob.
Ah, Slimes from Terasology?
Re: A simple mob
Posted:
Tue Oct 20, 2015 15:05by MineYoshi
NO!
i think is pacman!
Re: A simple mob
Posted:
Tue Oct 20, 2015 15:45by Don
It is pacman. I should have it done in the next couple days. I am going to add more games to myboardgames modpack soon.
Re: A simple mob
Posted:
Tue Oct 20, 2015 16:44by Ferk
I still think it would make more sense if the ghosts followed a more "square" pattern. You won't be able to use a standard pacman map if the ghosts spawn all in the center and follow this algorithm, or else they will always go in the same direction without spreading out. So you'll need them to spawn in the corners.
Anyway, even if the game turns out different than pacman, it still sounds like fun.
Re: A simple mob
Posted:
Tue Oct 20, 2015 17:38by Don
Ferk wrote:I still think it would make more sense if the ghosts followed a more "square" pattern. You won't be able to use a standard pacman map if the ghosts spawn all in the center and follow this algorithm, or else they will always go in the same direction without spreading out. So you'll need them to spawn in the corners.
Anyway, even if the game turns out different than pacman, it still sounds like fun.
I made it look the same as the old pacman but removed a couple blocks from the ghost spawn area.
Re: A simple mob
Posted:
Sat Oct 31, 2015 18:25by Gaming Association
so ull b able 2 play it like the original pacman arcade game?
Re: A simple mob
Posted:
Sat Oct 31, 2015 19:00by Don
You will have to wait till it is released to see.
Re: A simple mob
Posted:
Sun Nov 22, 2015 05:56by Christian9
Don wrote: mob only needs to chase a player. There is no animation, punch or attack. I don't even want the player to be able to hit the mob.
I could do that quickly.give me 3 days and I can get you something just like that
Re: A simple mob
Posted:
Sun Nov 22, 2015 12:55by Don
Christian9 wrote:Don wrote: mob only needs to chase a player. There is no animation, punch or attack. I don't even want the player to be able to hit the mob.
I could do that quickly.give me 3 days and I can get you something just like that
Pacmine is done already. It is in myarcade. The link is in my signature.