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turning airutils into a lib

main
Alexsandro Percy 6 months ago
parent
commit
b6bca8a47a
  1. 4
      airutils_papi.lua
  2. 126
      init.lua

4
airutils_papi.lua

@ -49,8 +49,8 @@ airutils.groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2}
-- PAPI node (default left)
minetest.register_node("airutils:papi",{
description = "PAPI",
inventory_image = "papi.png",
wield_image = "papi.png",
--inventory_image = "papi.png",
--wield_image = "papi.png",
tiles = {"airutils_black.png", "airutils_u_black.png", "airutils_white.png",
"airutils_metal.png", {name = "airutils_red.png", backface_culling = true},},
groups = airutils.groups,

126
init.lua

@ -20,5 +20,131 @@ function airutils.canDig(pos, player)
and player:get_player_name() == meta:get_string("owner")
end
function airutils.check_node_below(obj)
local pos_below = obj:get_pos()
if pos_below then
pos_below.y = pos_below.y - 2.5
local node_below = minetest.get_node(pos_below).name
local nodedef = minetest.registered_nodes[node_below]
local touching_ground = not nodedef or -- unknown nodes are solid
nodedef.walkable or false
local liquid_below = not touching_ground and nodedef.liquidtype ~= "none"
return touching_ground, liquid_below
end
return nil, nil
end
function airutils.check_is_under_water(obj)
local pos_up = obj:get_pos()
pos_up.y = pos_up.y + 0.1
local node_up = minetest.get_node(pos_up).name
local nodedef = minetest.registered_nodes[node_up]
local liquid_up = nodedef.liquidtype ~= "none"
return liquid_up
end
function airutils.setText(self, vehicle_name)
local properties = self.object:get_properties()
local formatted = ""
if self.hp_max then
formatted = " Current hp: " .. string.format(
"%.2f", self.hp_max
)
end
if properties then
properties.infotext = "Nice ".. vehicle_name .." of " .. self.owner .. "." .. formatted
self.object:set_properties(properties)
end
end
function airutils.transfer_control(self, status)
if status == false then
self._command_is_given = false
if self._passenger then
minetest.chat_send_player(self._passenger,
core.colorize('#ff0000', " >>> The captain got the control."))
end
if self.driver_name then
minetest.chat_send_player(self.driver_name,
core.colorize('#00ff00', " >>> The control is with you now."))
end
else
self._command_is_given = true
if self._passenger then
minetest.chat_send_player(self._passenger,
core.colorize('#00ff00', " >>> The control is with you now."))
end
if self.driver_name then minetest.chat_send_player(self.driver_name," >>> The control was given.") end
end
end
--returns 0 for old, 1 for new
function airutils.detect_player_api(player)
local player_proterties = player:get_properties()
local mesh = "character.b3d"
if player_proterties.mesh == mesh then
local models = player_api.registered_models
local character = models[mesh]
if character then
if character.animations.sit.eye_height then
return 1
else
return 0
end
end
end
return 0
end
--lift
local function pitchroll2pitchyaw(aoa,roll)
if roll == 0.0 then return aoa,0 end
-- assumed vector x=0,y=0,z=1
local p1 = math.tan(aoa)
local y = math.cos(roll)*p1
local x = math.sqrt(p1^2-y^2)
local pitch = math.atan(y)
local yaw=math.atan(x)*math.sign(roll)
return pitch,yaw
end
function airutils.getLiftAccel(self, velocity, accel, longit_speed, roll, curr_pos, lift, max_height)
--lift calculations
-----------------------------------------------------------
max_height = max_height or 20000
local wing_config = 0
if self._wing_configuration then wing_config = self._wing_configuration end --flaps!
local retval = accel
if longit_speed > 1 then
local angle_of_attack = math.rad(self._angle_of_attack + wing_config)
--local acc = 0.8
local daoa = deg(angle_of_attack)
--to decrease the lift coefficient at hight altitudes
local curr_percent_height = (100 - ((curr_pos.y * 100) / max_height))/100
local rotation=self.object:get_rotation()
local vrot = mobkit.dir_to_rot(velocity,rotation)
local hpitch,hyaw = pitchroll2pitchyaw(angle_of_attack,roll)
local hrot = {x=vrot.x+hpitch,y=vrot.y-hyaw,z=roll}
local hdir = mobkit.rot_to_dir(hrot) --(hrot)
local cross = vector.cross(velocity,hdir)
local lift_dir = vector.normalize(vector.cross(cross,hdir))
local lift_coefficient = (0.24*abs(daoa)*(1/(0.025*daoa+3))^4*math.sign(angle_of_attack))
local lift_val = math.abs((lift*(vector.length(velocity)^2)*lift_coefficient)*curr_percent_height)
--minetest.chat_send_all('lift: '.. lift_val)
local lift_acc = vector.multiply(lift_dir,lift_val)
--lift_acc=vector.add(vector.multiply(minetest.yaw_to_dir(rotation.y),acc),lift_acc)
retval = vector.add(retval,lift_acc)
end
-----------------------------------------------------------
-- end lift
return retval
end

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