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added code for water boiuonce and detection

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Alexsandro Percy 2023-06-17 21:55:14 -03:00
parent f6200b9442
commit a77131dc82
1 changed files with 43 additions and 1 deletions
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44
lib_planes/custom_physics.lua
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@ -14,6 +14,49 @@ function airutils.physics(self)
self.object:set_velocity(vel)
end
--buoyancy
local surface = nil
local surfnodename = nil
local spos = airutils.get_stand_pos(self)
spos.y = spos.y+0.01
-- get surface height
local snodepos = airutils.get_node_pos(spos)
local surfnode = airutils.nodeatpos(spos)
while surfnode and (surfnode.drawtype == 'liquid' or surfnode.drawtype == 'flowingliquid') do
surfnodename = surfnode.name
surface = snodepos.y +0.5
if surface > spos.y+self.height then break end
snodepos.y = snodepos.y+1
surfnode = airutils.nodeatpos(snodepos)
end
local new_velocity = nil
self.isinliquid = surfnodename
if surface then -- standing in liquid
self.isinliquid = true
end
local accell = {x=0, y=0, z=0}
self.water_drag = 0.1
if self.isinliquid then
local height = self.height
local submergence = min(surface-spos.y,height)/height
-- local balance = self.buoyancy*self.height
local buoyacc = airutils.gravity*(self.buoyancy-submergence)
--[[airutils.set_acceleration(self.object,
{x=-vel.x*self.water_drag,y=buoyacc-vel.y*abs(vel.y)*0.4,z=-vel.z*self.water_drag})]]--
accell = {x=-vel.x*self.water_drag,y=buoyacc-(vel.y*abs(vel.y)*0.4),z=-vel.z*self.water_drag}
--local v_accell = {x=0,y=buoyacc-(vel.y*abs(vel.y)*0.4),z=0}
--airutils.set_acceleration(self.object,v_accell)
new_velocity = vector.add(vel, vector.multiply(accell, self.dtime))
else
airutils.set_acceleration(self.object,{x=0,y=0,z=0})
self.isinliquid = false
new_velocity = vector.add(vel, {x=0,y=airutils.gravity * self.dtime,z=0})
--self.object:set_velocity(new_velocity)
end
-- bounciness
if self.springiness and self.springiness > 0 then
local vnew = vector.new(vel)
@ -39,5 +82,4 @@ function airutils.physics(self)
end
self.object:set_acceleration({x=0,y=airutils.gravity,z=0})
end