New mob mod
Posted: Mon Jul 11, 2016 11:18Well, I don't want to call it API, because I think API is the wrong term
Those who follow the Post your videos thread may have seen what I'm working on. I'm unhappy with the current mobs so I decided to make my own mod with a different approach. I want to implement the steering behaviours from Craig Reynolds described in this paper
I also want to move most of the code from the "API" to the mob itself because I think the behaviour depends on the mob and if the mob can not breed for example there is no need for breeding code. So I completely removed the on_step function from the "API" like in mobs_redo and moved it to the mob itself. I want to provide lots of functions to build mobs and a mob template to start with.
The code for the wanderer from the third video is not more than this
It should be more like a construction kit with some specific configurations to make each mob individual.
I can't implement the full hierarchy of motion behaviour. This would include the calculation of each position per step. I skip this calculation and use the velocity from the previous step directly for setvelocity, which seems to work pretty well. I have tested it with over 170 sheeps and it worked without any noticeable lag, except if an new mapblock with new mobs is loaded. But I guess this is an engine issue
In the next step I will give the mobs the ability to see, hear or other "senses" and add more behaviours. My first "victim" will be the sheep
Those who follow the Post your videos thread may have seen what I'm working on. I'm unhappy with the current mobs so I decided to make my own mod with a different approach. I want to implement the steering behaviours from Craig Reynolds described in this paper
I also want to move most of the code from the "API" to the mob itself because I think the behaviour depends on the mob and if the mob can not breed for example there is no need for breeding code. So I completely removed the on_step function from the "API" like in mobs_redo and moved it to the mob itself. I want to provide lots of functions to build mobs and a mob template to start with.
The code for the wanderer from the third video is not more than this
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on_step = function(self, dtime)
self.acceleration = vector.new(0,0,0)
self.pos = self.object:getpos()
self.yaw = self.object:getyaw()
mobs:apply_force(self, mobs:separate(self))
mobs:apply_force(self, mobs:wander(self))
local y_velocity = self.object:getvelocity().y
self.velocity = vector.add(self.velocity, self.acceleration)
self.velocity = vector.limit(self.velocity, self.walk_velocity)
self.object:setvelocity({x = self.velocity.x, y = y_velocity, z = self.velocity.z})
self.object:setyaw(vector.yaw(self.velocity))
end,
It should be more like a construction kit with some specific configurations to make each mob individual.
I can't implement the full hierarchy of motion behaviour. This would include the calculation of each position per step. I skip this calculation and use the velocity from the previous step directly for setvelocity, which seems to work pretty well. I have tested it with over 170 sheeps and it worked without any noticeable lag, except if an new mapblock with new mobs is loaded. But I guess this is an engine issue
In the next step I will give the mobs the ability to see, hear or other "senses" and add more behaviours. My first "victim" will be the sheep