TheTermos
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1eb151dc14
226
init.lua
226
init.lua
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@ -12,6 +12,7 @@ mobkit.friction = 0.4 -- less is more
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local abs = math.abs
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local pi = math.pi
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local floor = math.floor
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local ceil = math.ceil
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local random = math.random
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local sqrt = math.sqrt
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local max = math.max
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@ -45,6 +46,11 @@ function mobkit.dot(v1,v2)
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return v1.x*v2.x+v1.y*v2.y+v1.z*v2.z
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end
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function mobkit.minmax(v,m)
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return min(abs(v),m)*sign(v)
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end
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function mobkit.dir2neighbor(dir)
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dir.y=0
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dir=vector.round(vector.normalize(dir))
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@ -103,6 +109,16 @@ function mobkit.get_stand_pos(thing) -- thing can be luaentity or objectref.
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return mobkit.pos_shift(pos,{y=colbox[2]+0.01}), pos
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end
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function mobkit.set_acceleration(thing,vec,limit)
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limit = limit or 100
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if type(thing) == 'table' then thing=thing.object end
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vec.x=mobkit.minmax(vec.x,limit)
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vec.y=mobkit.minmax(vec.y,limit)
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vec.z=mobkit.minmax(vec.z,limit)
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thing:set_acceleration(vec)
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end
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function mobkit.nodeatpos(pos)
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local node = minetest.get_node_or_nil(pos)
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if node then return minetest.registered_nodes[node.name] end
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@ -379,17 +395,6 @@ function mobkit.heal(luaent,dmg)
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end
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end
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-- function mobkit.animate(self,anim)
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-- if self.animation and self.animation[anim] then
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-- local crange = self.object:get_animation().range
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-- if not crange
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-- or crange.x ~= self.animation[anim].range.x
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-- or crange.y ~= self.animation[anim].range.y then
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-- self.object:set_animation(self.animation[anim].range,self.animation[anim].speed,0,self.animation[anim].loop)
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-- end
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-- end
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-- end
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function mobkit.animate(self,anim)
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if self.animation and self.animation[anim] then
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if self._anim == anim then return end
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@ -746,6 +751,88 @@ function mobkit.default_brain(self)
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if mobkit.is_queue_empty_high(self) then mobkit.hq_roam(self,0) end
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end
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function mobkit.physics(self)
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local vel=self.object:get_velocity()
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-- dumb friction
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if self.isonground and not self.isinliquid then
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self.object:set_velocity({x= vel.x> 0.2 and vel.x*mobkit.friction or 0,
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y=vel.y,
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z=vel.z > 0.2 and vel.z*mobkit.friction or 0})
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end
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-- bounciness
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if self.springiness and self.springiness > 0 then
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local vnew = vector.new(vel)
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if not self.collided then -- ugly workaround for inconsistent collisions
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for _,k in ipairs({'y','z','x'}) do
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if vel[k]==0 and abs(self.lastvelocity[k])> 0.1 then
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vnew[k]=-self.lastvelocity[k]*self.springiness
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end
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end
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end
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if not vector.equals(vel,vnew) then
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self.collided = true
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else
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if self.collided then
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vnew = vector.new(self.lastvelocity)
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end
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self.collided = false
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end
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self.object:set_velocity(vnew)
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end
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-- buoyancy
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local spos = mobkit.get_stand_pos(self)
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spos.y = spos.y+0.01
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-- get surface height
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local surface = nil
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local snodepos = mobkit.get_node_pos(spos)
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local surfnode = mobkit.nodeatpos(spos)
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while surfnode and surfnode.drawtype == 'liquid' do
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surface = snodepos.y+0.5
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if surface > spos.y+self.height then break end
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snodepos.y = snodepos.y+1
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surfnode = mobkit.nodeatpos(snodepos)
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end
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if surface then -- standing in liquid
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self.isinliquid = true
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local submergence = min(surface-spos.y,self.height)
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local balance = self.buoyancy*self.height
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local buoyacc = mobkit.gravity*((balance - submergence)^2/balance^2*sign(balance - submergence))
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mobkit.set_acceleration(self.object,
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{x=-vel.x*self.water_drag,y=buoyacc-vel.y*abs(vel.y)*0.7,z=-vel.z*self.water_drag})
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else
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self.isinliquid = false
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self.object:set_acceleration({x=0,y=mobkit.gravity,z=0})
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end
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end
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function mobkit.vitals(self)
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-- vitals: fall damage
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vel = self.object:get_velocity()
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local velocity_delta = abs(self.lastvelocity.y - vel.y)
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if velocity_delta > mobkit.safe_velocity then
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self.hp = self.hp - floor(self.max_hp * min(1, velocity_delta/mobkit.terminal_velocity))
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end
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-- vitals: oxygen
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if self.lung_capacity then
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local colbox = self.object:get_properties().collisionbox
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local headnode = mobkit.nodeatpos(mobkit.pos_shift(self.object:get_pos(),{y=colbox[5]})) -- node at hitbox top
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if headnode and headnode.drawtype == 'liquid' then
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self.oxygen = self.oxygen - self.dtime
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else
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self.oxygen = self.lung_capacity
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end
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if self.oxygen <= 0 then self.hp=0 end -- drown
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end
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end
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function mobkit.statfunc(self)
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local tmptab={}
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tmptab.memory = self.memory
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@ -755,6 +842,10 @@ function mobkit.statfunc(self)
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end
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function mobkit.actfunc(self, staticdata, dtime_s)
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self.logic = self.logic or self.brainfunc
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self.physics = self.physics or mobkit.physics
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self.lqueue = {}
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self.hqueue = {}
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self.nearby_objects = {}
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@ -805,7 +896,7 @@ function mobkit.actfunc(self, staticdata, dtime_s)
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end
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function mobkit.stepfunc(self,dtime) -- not intended to be modified
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self.dtime = dtime
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self.dtime = max(dtime,0.05)
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self.height = mobkit.get_box_height(self)
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-- physics comes first
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-- self.object:set_acceleration({x=0,y=mobkit.gravity,z=0})
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@ -818,108 +909,16 @@ function mobkit.stepfunc(self,dtime) -- not intended to be modified
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self.isonground = false
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end
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-- dumb friction
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if self.isonground and not self.isinliquid then
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self.object:set_velocity({x= vel.x> 0.2 and vel.x*mobkit.friction or 0,
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y=vel.y,
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z=vel.z > 0.2 and vel.z*mobkit.friction or 0})
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end
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-- bounciness
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if self.springiness and self.springiness > 0 then
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local vnew = vector.new(vel)
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if not self.collided then -- ugly workaround for inconsistent collisions
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for _,k in ipairs({'y','z','x'}) do
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if vel[k]==0 and abs(self.lastvelocity[k])> 0.1 then
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vnew[k]=-self.lastvelocity[k]*self.springiness
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end
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end
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end
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if not vector.equals(vel,vnew) then
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self.collided = true
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else
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if self.collided then
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vnew = vector.new(self.lastvelocity)
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end
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self.collided = false
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end
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self.object:set_velocity(vnew)
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end
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-- buoyancy
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local spos = mobkit.get_stand_pos(self)
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spos.y = spos.y+0.01
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-- get surface height
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-- local surface = mobkit.get_node_pos(spos).y+0.5
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local surface = nil
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local snodepos = mobkit.get_node_pos(spos)
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local surfnode = mobkit.nodeatpos(spos)
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while surfnode and surfnode.drawtype == 'liquid' do
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surface = snodepos.y+0.5
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if surface > spos.y+self.height then break end
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snodepos.y = snodepos.y+1
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surfnode = mobkit.nodeatpos(snodepos)
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end
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if surface then -- standing in liquid
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self.isinliquid = true
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local submergence = min(surface-spos.y,self.height)
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local balance = self.buoyancy*self.height
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local buoyacc = mobkit.gravity*((balance - submergence)^2/balance^2*sign(balance - submergence))
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self.object:set_acceleration({x=-vel.x*self.water_drag,y=buoyacc-vel.y*abs(vel.y)*0.7,z=-vel.z*self.water_drag})
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else
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self.isinliquid = false
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self.object:set_acceleration({x=0,y=mobkit.gravity,z=0})
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end
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-- local footnode = mobkit.nodeatpos(spos)
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-- local headnode
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-- if footnode and footnode.drawtype == 'liquid' then
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-- vel = self.object:get_velocity()
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-- headnode = mobkit.nodeatpos(mobkit.pos_shift(spos,{y=self.height or 0})) -- TODO: height may be nil
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-- local submergence = headnode.drawtype=='liquid'
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-- and self.buoyancy-1
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-- or (self.buoyancy*self.height-(1-(spos.y+0.5)%1))^2/(self.buoyancy*self.height)^2*sign(self.buoyancy*self.height-(1-(spos.y+0.5)%1))
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self:physics()
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-- local buoyacc = submergence * mobkit.gravity
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-- self.object:set_acceleration({x=-vel.x,y=buoyacc-vel.y*abs(vel.y)*0.5,z=-vel.z})
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-- end
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if self.brainfunc then
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-- vitals: fall damage
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vel = self.object:get_velocity()
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local velocity_delta = abs(self.lastvelocity.y - vel.y)
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if velocity_delta > mobkit.safe_velocity then
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self.hp = self.hp - floor((self.max_hp-100) * min(1, velocity_delta/mobkit.terminal_velocity))
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end
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-- vitals: oxygen
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if self.lung_capacity then
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local colbox = self.object:get_properties().collisionbox
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local headnode = mobkit.nodeatpos(mobkit.pos_shift(self.object:get_pos(),{y=colbox[5]})) -- node at hitbox top
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if headnode and headnode.drawtype == 'liquid' then
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self.oxygen = self.oxygen - self.dtime
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else
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self.oxygen = self.lung_capacity
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end
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if self.oxygen <= 0 then self.hp=0 end -- drown
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end
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if self.logic then
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if self.view_range then self:sensefunc() end
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self:brainfunc()
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self:logic()
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execute_queues(self)
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end
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self.lastvelocity = self.object:get_velocity()
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self.time_total=self.time_total+self.dtime
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self.time_total=self.time_total+dtime
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end
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----------------------------
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@ -1007,7 +1006,7 @@ function mobkit.lq_dumbjump(self,height,anim)
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dir = vector.multiply(dir,3)
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end
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dir.y = vel.y
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self.object:set_velocity(dir,yaw)
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self.object:set_velocity(dir)
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end
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end
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mobkit.queue_low(self,func)
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@ -1051,6 +1050,7 @@ end
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function mobkit.lq_jumpattack(self,height,target)
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local phase=1
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local timer=0.5
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local tgtbox = target:get_properties().collisionbox
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local func=function(self)
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if not mobkit.is_alive(target) then return true end
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@ -1062,6 +1062,7 @@ function mobkit.lq_jumpattack(self,height,target)
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mobkit.make_sound(self,'charge')
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phase=2
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else
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mobkit.lq_idle(self,0.3)
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return true
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end
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elseif phase==2 then
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@ -1114,7 +1115,7 @@ end
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-- HIGH LEVEL QUEUE FUNCTIONS
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-----------------------------
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function mobkit.dumbstep(self,height,tpos,speed_factor)
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function mobkit.dumbstep(self,height,tpos,speed_factor,idle_duration)
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if height <= 0.001 then
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mobkit.lq_turn2pos(self,tpos)
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mobkit.lq_dumbwalk(self,tpos,speed_factor)
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@ -1122,7 +1123,8 @@ function mobkit.dumbstep(self,height,tpos,speed_factor)
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mobkit.lq_turn2pos(self,tpos)
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mobkit.lq_dumbjump(self,height)
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end
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mobkit.lq_idle(self,random(1,6))
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idle_duration = idle_duration or 6
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mobkit.lq_idle(self,random(ceil(idle_duration*0.5),idle_duration))
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end
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function mobkit.hq_roam(self,prty)
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@ -1289,7 +1291,7 @@ function mobkit.hq_die(self)
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local func = function(self)
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if start then
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mobkit.lq_fallover(self)
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self.brainfunc = function(self) end -- brain dead as well
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self.logic = function(self) end -- brain dead as well
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start=false
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end
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timer = timer-self.dtime
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