673 lines
22 KiB
Lua
Executable File
673 lines
22 KiB
Lua
Executable File
--
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-- constants
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--
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minekart={}
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minekart.LONGIT_DRAG_FACTOR = 0.16*0.16
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minekart.LATER_DRAG_FACTOR = 30.0
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minekart.gravity = (tonumber(minetest.settings:get("movement_gravity")) or 9.8)
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--two variables to control sound event
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minekart.last_time_collision_snd = 0
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minekart.last_time_drift_snd =0
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minekart.last_fuel_display =0
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--kart colors
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minekart.colors ={
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black='#2b2b2b',
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blue='#0063b0',
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brown='#8c5922',
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cyan='#07B6BC',
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dark_green='#567a42',
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dark_grey='#6d6d6d',
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green='#4ee34c',
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grey='#9f9f9f',
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magenta='#ff0098',
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orange='#ff8b0e',
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pink='#ff62c6',
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red='#dc1818',
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violet='#a437ff',
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white='#FFFFFF',
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yellow='#ffe400',
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}
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dofile(minetest.get_modpath("minekart") .. DIR_DELIM .. "minekart_control.lua")
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dofile(minetest.get_modpath("minekart") .. DIR_DELIM .. "minekart_fuel_management.lua")
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--
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-- helpers and co.
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--
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local creative_exists = minetest.global_exists("creative")
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function minekart.get_hipotenuse_value(point1, point2)
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return math.sqrt((point1.x - point2.x) ^ 2 + (point1.y - point2.y) ^ 2 + (point1.z - point2.z) ^ 2)
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end
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function minekart.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 minekart.sign(n)
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return n>=0 and 1 or -1
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end
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function minekart.minmax(v,m)
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return math.min(math.abs(v),m)*minekart.sign(v)
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end
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--painting
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function minekart.paint(self, colstr)
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if colstr then
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self._color = colstr
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local l_textures = self.initial_properties.textures
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for _, texture in ipairs(l_textures) do
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local i,indx = texture:find('kart_painting.png')
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if indx then
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l_textures[_] = "kart_painting.png^[multiply:".. colstr
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end
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end
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self.object:set_properties({textures=l_textures})
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end
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end
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-- destroy the kart
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function minekart.destroy(self, puncher)
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if self.sound_handle then
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minetest.sound_stop(self.sound_handle)
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self.sound_handle = nil
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end
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if self.driver_name then
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-- detach the driver first (puncher must be driver)
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puncher:set_detach()
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puncher:set_eye_offset({x = 0, y = 0, z = 0}, {x = 0, y = 0, z = 0})
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player_api.player_attached[self.driver_name] = nil
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-- player should stand again
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player_api.set_animation(puncher, "stand")
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self.driver_name = nil
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end
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local pos = self.object:get_pos()
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if self.l_wheel then self.l_wheel:remove() end
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if self.r_wheel then self.r_wheel:remove() end
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if self.steering_base then self.steering_base:remove() end
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if self.steering then self.steering:remove() end
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if self.dir_bar then self.dir_bar:remove() end
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self.object:remove()
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pos.y=pos.y+2
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minetest.add_item({x=pos.x+math.random()-0.5,y=pos.y,z=pos.z+math.random()-0.5},'minekart:kart')
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end
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--
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-- entity
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--
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minetest.register_entity('minekart:left_wheel',{
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initial_properties = {
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physical = false,
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collide_with_objects=false,
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pointable=false,
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visual = "mesh",
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mesh = "kart_left_wheel.b3d",
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textures = {"kart_black.png", "kart_black.png", "kart_metal.png",},
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},
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on_activate = function(self,std)
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self.sdata = minetest.deserialize(std) or {}
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if self.sdata.remove then self.object:remove() end
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end,
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get_staticdata=function(self)
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self.sdata.remove=true
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return minetest.serialize(self.sdata)
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end,
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})
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minetest.register_entity('minekart:right_wheel',{
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initial_properties = {
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physical = false,
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collide_with_objects=false,
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pointable=false,
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visual = "mesh",
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mesh = "kart_right_wheel.b3d",
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textures = {"kart_black.png", "kart_black.png", "kart_metal.png",},
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},
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on_activate = function(self,std)
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self.sdata = minetest.deserialize(std) or {}
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if self.sdata.remove then self.object:remove() end
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end,
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get_staticdata=function(self)
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self.sdata.remove=true
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return minetest.serialize(self.sdata)
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end,
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})
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minetest.register_entity('minekart:steering_wheel_axis',{
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initial_properties = {
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physical = false,
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collide_with_objects=false,
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pointable=false,
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visual = "mesh",
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mesh = "kart_steering_base.b3d",
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textures = {"kart_black.png",},
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},
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on_activate = function(self,std)
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self.sdata = minetest.deserialize(std) or {}
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if self.sdata.remove then self.object:remove() end
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end,
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get_staticdata=function(self)
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self.sdata.remove=true
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return minetest.serialize(self.sdata)
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end,
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})
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minetest.register_entity('minekart:steering_wheel',{
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initial_properties = {
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physical = false,
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collide_with_objects=false,
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pointable=false,
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visual = "mesh",
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mesh = "kart_steering.b3d",
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textures = {"kart_u_black.png",},
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},
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on_activate = function(self,std)
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self.sdata = minetest.deserialize(std) or {}
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if self.sdata.remove then self.object:remove() end
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end,
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get_staticdata=function(self)
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self.sdata.remove=true
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return minetest.serialize(self.sdata)
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end,
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})
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minetest.register_entity('minekart:dir_bar',{
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initial_properties = {
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physical = false,
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collide_with_objects=false,
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pointable=false,
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visual = "mesh",
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mesh = "kart_dir_bar.b3d",
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textures = {"kart_black.png",},
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},
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on_activate = function(self,std)
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self.sdata = minetest.deserialize(std) or {}
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if self.sdata.remove then self.object:remove() end
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end,
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get_staticdata=function(self)
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self.sdata.remove=true
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return minetest.serialize(self.sdata)
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end,
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})
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minetest.register_entity("minekart:kart", {
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initial_properties = {
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physical = true,
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collide_with_objects = true,
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collisionbox = {-0.6, 0.0, -0.6, 0.6, 1, 0.6},
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selectionbox = {-0.8, 0.0, -0.8, 0.8, 0.1, 0.8},
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stepheight = 0.5,
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visual = "mesh",
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mesh = "kart_body.b3d",
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textures = {"kart_black.png", "kart_painting.png", "kart_painting.png", "kart_red.png", "kart_black.png", "kart_white.png", "kart_black.png", "kart_black.png", "kart_black.png", "kart_black.png", "kart_metal.png", "kart_black.png", "kart_black.png", "kart_metal.png", "kart_black.png", "kart_metal.png",},
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},
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--textures = {},
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driver_name = nil,
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sound_handle = nil,
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owner = "",
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static_save = true,
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infotext = "A very nice kart!",
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hp = 50,
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_lastvelocity = vector.new(),
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_color = "#FFFFFF",
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_steering_angle = 0,
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_engine_running = false,
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_last_checkpoint = "",
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_total_laps = -1,
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_race_id = "",
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_energy = 0.001,
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get_staticdata = function(self) -- unloaded/unloads ... is now saved
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return minetest.serialize({
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--stored_owner = self.owner,
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stored_hp = self.hp,
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stored_color = self._color,
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stored_steering = self._steering_angle,
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stored_energy = self._energy,
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--race data
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stored_last_checkpoint = self._last_checkpoint,
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stored_total_laps = self._total_laps,
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stored_race_id = self._race_id,
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})
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end,
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on_activate = function(self, staticdata, dtime_s)
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if staticdata ~= "" and staticdata ~= nil then
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local data = minetest.deserialize(staticdata) or {}
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--self.owner = data.stored_owner
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self.hp = data.stored_hp
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self._color = data.stored_color
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self._steering_angle = data.stored_steering
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self._energy = data.stored_energy
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--minetest.debug("loaded: ", self.energy)
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--race data
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self._last_checkpoint = data.stored_last_checkpoint
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self._total_laps = data.stored_total_laps
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self._race_id = data.stored_race_id
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end
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self.object:set_animation({x = 1, y = 8}, 0, 0, true)
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minekart.paint(self, self._color)
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local pos = self.object:get_pos()
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local l_wheel=minetest.add_entity(pos,'minekart:left_wheel')
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l_wheel:set_attach(self.object,'',{x=-6,y=2.1,z=10.7},{x=0,y=0,z=0})
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-- set the animation once and later only change the speed
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l_wheel:set_animation({x = 1, y = 8}, 0, 0, true)
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self.l_wheel = l_wheel
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local r_wheel=minetest.add_entity(pos,'minekart:right_wheel')
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r_wheel:set_attach(self.object,'',{x=6,y=2.1,z=10.7},{x=0,y=0,z=0})
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-- set the animation once and later only change the speed
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r_wheel:set_animation({x = 1, y = 8}, 0, 0, true)
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self.r_wheel = r_wheel
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local steering_axis=minetest.add_entity(pos,'minekart:steering_wheel_axis')
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steering_axis:set_attach(self.object,'',{x=0,y=7.49,z=7},{x=45,y=0,z=0})
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self.steering_axis = steering_axis
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local steering=minetest.add_entity(self.steering_axis:get_pos(),'minekart:steering_wheel')
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steering:set_attach(self.steering_axis,'',{x=0,y=0,z=0},{x=0,y=0,z=0})
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self.steering = steering
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local dir_bar=minetest.add_entity(self.object:get_pos(),'minekart:dir_bar')
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dir_bar:set_attach(self.object,'',{x=0,y=0,z=-4},{x=0,y=0,z=0})
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self.dir_bar = dir_bar
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self.object:set_armor_groups({immortal=1})
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self.object:set_acceleration(vector.multiply(minekart.vector_up, -minekart.gravity))
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end,
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on_step = function(self, dtime)
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--[[sound play control]]--
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minekart.last_time_collision_snd = minekart.last_time_collision_snd + dtime
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if minekart.last_time_collision_snd > 1 then minekart.last_time_collision_snd = 1 end
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minekart.last_time_drift_snd = minekart.last_time_drift_snd + dtime
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if minekart.last_time_drift_snd > 1 then minekart.last_time_drift_snd = 1 end
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--[[end sound control]]--
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local accel_y = self.object:get_acceleration().y
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local rotation = self.object:get_rotation()
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local yaw = rotation.y
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local newyaw=yaw
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local pitch = rotation.x
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local newpitch = pitch
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local roll = rotation.z
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local newroll=roll
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local hull_direction = minetest.yaw_to_dir(yaw)
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local nhdir = {x=hull_direction.z,y=0,z=-hull_direction.x} -- lateral unit vector
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local velocity = self.object:get_velocity()
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local longit_speed = minekart.dot(velocity,hull_direction)
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local fuel_weight_factor = (5 - self._energy)/5000
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local longit_drag = vector.multiply(hull_direction,(longit_speed*longit_speed) * (minekart.LONGIT_DRAG_FACTOR - fuel_weight_factor) * -1 * minekart.sign(longit_speed))
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local later_speed = minekart.dot(velocity,nhdir)
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local later_drag = vector.multiply(nhdir,later_speed*later_speed*minekart.LATER_DRAG_FACTOR*-1*minekart.sign(later_speed))
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local accel = vector.add(longit_drag,later_drag)
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local vel = self.object:get_velocity()
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local player = nil
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local is_attached = false
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if self.driver_name then
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player = minetest.get_player_by_name(self.driver_name)
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if player then
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local player_attach = player:get_attach()
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if player_attach then
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if player_attach == self.object then is_attached = true end
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end
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end
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end
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if is_attached then --and self.driver_name == self.owner then
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local curr_pos = self.object:get_pos()
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local impact = minekart.get_hipotenuse_value(vel, self._lastvelocity)
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if impact > 1 then
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--self.damage = self.damage + impact --sum the impact value directly to damage meter
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if minekart.last_time_collision_snd > 0.3 then
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minekart.last_time_collision_snd = 0
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minetest.sound_play("collision", {
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to_player = self.driver_name,
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--pos = curr_pos,
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--max_hear_distance = 5,
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gain = 1.0,
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fade = 0.0,
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pitch = 1.0,
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})
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end
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--[[if self.damage > 100 then --if acumulated damage is greater than 100, adieu
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minekart.destroy(self)
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end]]--
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end
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local min_later_speed = 0.9
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if (later_speed > min_later_speed or later_speed < -min_later_speed) and minekart.last_time_drift_snd > 0.6 then
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minekart.last_time_drift_snd = 0
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minetest.sound_play("drifting", {
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to_player = self.driver_name,
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pos = curr_pos,
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max_hear_distance = 5,
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gain = 1.0,
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fade = 0.0,
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pitch = 1.0,
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ephemeral = true,
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})
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end
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--control
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accel = minekart.kart_control(self, dtime, hull_direction, longit_speed, longit_drag, later_drag, accel) or vel
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else
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if self.sound_handle ~= nil then
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minetest.sound_stop(self.sound_handle)
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self.sound_handle = nil
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end
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end
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local angle_factor = self._steering_angle / 10
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self.object:set_animation_frame_speed(longit_speed * 10)
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self.l_wheel:set_animation_frame_speed(longit_speed * (10 - angle_factor))
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self.r_wheel:set_animation_frame_speed(longit_speed * (10 + angle_factor))
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self.steering:set_attach(self.steering_axis,'',{x=0,y=0,z=0},{x=0,y=0,z=self._steering_angle*2})
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self.l_wheel:set_attach(self.object,'',{x=-6,y=2.1,z=10.7},{x=0,y=-self._steering_angle-angle_factor,z=0})
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self.dir_bar:set_attach(self.object,'',{x=(-1*(self._steering_angle / 25)),y=0,z=-4},{x=0,y=0,z=0})
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self.r_wheel:set_attach(self.object,'',{x= 6,y=2.1,z=10.7},{x=0,y=-self._steering_angle+angle_factor,z=0})
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if math.abs(self._steering_angle)>5 then
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local turn_rate = math.rad(60)
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newyaw = yaw + dtime*(1 - 1 / (math.abs(longit_speed) + 1)) * self._steering_angle / 30 * turn_rate * minekart.sign(longit_speed)
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end
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--[[if player and is_attached then
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player:set_look_horizontal(newyaw)
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end]]--
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newpitch = velocity.y * math.rad(6)
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--add gravity accell
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accel = vector.add(accel, vector.multiply(minekart.vector_up, -minekart.gravity)) -- * dtime))
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--[[
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accell correction
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under some circunstances the acceleration exceeds the max value accepted by set_acceleration and
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the game crashes with an overflow, so limiting the max acceleration in each axis prevents the crash
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]]--
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local max_factor = 25
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local acc_adjusted = 10
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if accel.x > max_factor then accel.x = acc_adjusted end
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if accel.x < -max_factor then accel.x = -acc_adjusted end
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if accel.z > max_factor then accel.z = acc_adjusted end
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if accel.z < -max_factor then accel.z = -acc_adjusted end
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-- end correction
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self.object:set_acceleration(accel)
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if newyaw~=yaw or newpitch~=pitch then self.object:set_rotation({x=newpitch,y=newyaw,z=0}) end
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--saves last velocity for collision detection (abrupt stop)
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self._lastvelocity = self.object:get_velocity()
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-- calculate energy consumption --
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----------------------------------
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if self._energy > 0 and self._engine_running then
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local zero_reference = vector.new()
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local acceleration = minekart.get_hipotenuse_value(accel, zero_reference)
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local consumed_power = acceleration/200000
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self._energy = self._energy - consumed_power;
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--report fuel
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if self._energy < 0.75 and minekart.last_fuel_display == 0 then
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minekart.last_fuel_display = 50
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minetest.chat_send_player(self.driver_name, "fuel now bellow 75%")
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end
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if self._energy < 0.5 and minekart.last_fuel_display == 50 then
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minekart.last_fuel_display = 25
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minetest.chat_send_player(self.driver_name, "fuel now bellow 50%")
|
|
end
|
|
if self._energy < 0.25 and minekart.last_fuel_display == 25 then
|
|
minekart.last_fuel_display = 10
|
|
minetest.chat_send_player(self.driver_name, "fuel now bellow 25%")
|
|
end
|
|
if self._energy < 0.1 and minekart.last_fuel_display == 10 then
|
|
minekart.last_fuel_display = 0
|
|
minetest.chat_send_player(self.driver_name, "Danger! Fuel now bellow 10%")
|
|
end
|
|
end
|
|
if self._energy <= 0 and self._engine_running then
|
|
self._engine_running = false
|
|
if self.sound_handle then minetest.sound_stop(self.sound_handle) end
|
|
minetest.chat_send_player(self.driver_name, "Out of fuel")
|
|
end
|
|
----------------------------
|
|
-- end energy consumption --
|
|
end,
|
|
|
|
on_punch = function(self, puncher, ttime, toolcaps, dir, damage)
|
|
if not puncher or not puncher:is_player() then
|
|
return
|
|
end
|
|
local name = puncher:get_player_name()
|
|
--[[if self.owner and self.owner ~= name and self.owner ~= "" then return end
|
|
if self.owner == nil then
|
|
self.owner = name
|
|
end]]--
|
|
|
|
if self.driver_name and self.driver_name ~= name then
|
|
-- do not allow other players to remove the object while there is a driver
|
|
return
|
|
end
|
|
|
|
local is_attached = false
|
|
if puncher:get_attach() == self.object then is_attached = true end
|
|
|
|
local itmstck=puncher:get_wielded_item()
|
|
local item_name = ""
|
|
if itmstck then item_name = itmstck:get_name() end
|
|
|
|
--refuel procedure
|
|
--[[
|
|
refuel works in 2 situations:
|
|
1- if my car doesn't have a race_id, ok, punch it anywhere with bio fuel while player attached and ok
|
|
2- if it have a race_id, you must stop near a "checkpoints:refuel" node to punch with the biofuel
|
|
]]--
|
|
local velocity = self.object:get_velocity()
|
|
local speed = minekart.get_hipotenuse_value(vector.new(), velocity)
|
|
if is_attached == true and item_name == "biofuel:biofuel" and self._engine_running == false and speed <= 0.1 then
|
|
local pos = self.object:get_pos()
|
|
if minetest.find_node_near(pos, 5, {"checkpoints:refuel"}) ~= nil then
|
|
minekart_load_fuel(self, puncher:get_player_name())
|
|
else
|
|
if self._race_id == "" then
|
|
minekart_load_fuel(self, puncher:get_player_name())
|
|
end
|
|
end
|
|
end
|
|
-- end refuel
|
|
|
|
if is_attached == false then
|
|
|
|
-- deal with painting or destroying
|
|
if itmstck then
|
|
--race status restart
|
|
if item_name == "checkpoints:status_restarter" and self._engine_running == false then
|
|
--restart race current status
|
|
self._last_checkpoint = ""
|
|
self._total_laps = -1
|
|
self._race_id = ""
|
|
return
|
|
end
|
|
|
|
--painting
|
|
local _,indx = item_name:find('dye:')
|
|
if indx then
|
|
|
|
--lets paint!!!!
|
|
local color = item_name:sub(indx+1)
|
|
local colstr = minekart.colors[color]
|
|
--minetest.chat_send_all(color ..' '.. dump(colstr))
|
|
if colstr then
|
|
minekart.paint(self, colstr)
|
|
itmstck:set_count(itmstck:get_count()-1)
|
|
puncher:set_wielded_item(itmstck)
|
|
end
|
|
-- end painting
|
|
|
|
else -- deal damage
|
|
if not self.driver and toolcaps and toolcaps.damage_groups and toolcaps.damage_groups.fleshy then
|
|
self.hp = self.hp - 10
|
|
minetest.sound_play("collision", {
|
|
object = self.object,
|
|
max_hear_distance = 5,
|
|
gain = 1.0,
|
|
fade = 0.0,
|
|
pitch = 1.0,
|
|
})
|
|
end
|
|
end
|
|
end
|
|
|
|
if self.hp <= 0 then
|
|
minekart.destroy(self)
|
|
end
|
|
|
|
end
|
|
|
|
end,
|
|
|
|
on_rightclick = function(self, clicker)
|
|
if not clicker or not clicker:is_player() then
|
|
return
|
|
end
|
|
|
|
local name = clicker:get_player_name()
|
|
--[[if self.owner and self.owner ~= name and self.owner ~= "" then return end
|
|
if self.owner == "" then
|
|
self.owner = name
|
|
end]]--
|
|
|
|
if name == self.driver_name then
|
|
self._engine_running = false
|
|
|
|
-- driver clicked the object => driver gets off the vehicle
|
|
self.driver_name = nil
|
|
-- sound and animation
|
|
if self.sound_handle then
|
|
minetest.sound_stop(self.sound_handle)
|
|
self.sound_handle = nil
|
|
end
|
|
|
|
self.object:set_animation_frame_speed(0)
|
|
|
|
-- detach the player
|
|
clicker:set_detach()
|
|
player_api.player_attached[name] = nil
|
|
clicker:set_eye_offset({x=0,y=0,z=0},{x=0,y=0,z=0})
|
|
player_api.set_animation(clicker, "stand")
|
|
self.driver = nil
|
|
self.object:set_acceleration(vector.multiply(minekart.vector_up, -minekart.gravity))
|
|
|
|
elseif not self.driver_name then
|
|
-- no driver => clicker is new driver
|
|
self.driver_name = name
|
|
|
|
-- temporary------
|
|
self.hp = 50 -- why? cause I can desist from destroy
|
|
------------------
|
|
|
|
-- attach the driver
|
|
clicker:set_attach(self.object, "", {x = 0, y = 3, z = 2}, {x = 0, y = 0, z = 0})
|
|
clicker:set_eye_offset({x = 0, y = 0, z = 2.5}, {x = 0, y = 0, z = -14})
|
|
player_api.player_attached[name] = true
|
|
-- make the driver sit
|
|
minetest.after(0.2, function()
|
|
local player = minetest.get_player_by_name(name)
|
|
if player then
|
|
player_api.set_animation(player, "sit")
|
|
end
|
|
end)
|
|
self.object:set_acceleration(vector.multiply(minekart.vector_up, -minekart.gravity))
|
|
end
|
|
end,
|
|
})
|
|
|
|
--
|
|
-- items
|
|
--
|
|
|
|
-- Kart
|
|
minetest.register_craftitem("minekart:kart", {
|
|
description = "Kart",
|
|
inventory_image = "motorboat_inv.png",
|
|
liquids_pointable = false,
|
|
|
|
on_place = function(itemstack, placer, pointed_thing)
|
|
if pointed_thing.type ~= "node" then
|
|
return
|
|
end
|
|
|
|
local pointed_pos = pointed_thing.above
|
|
local node_below = minetest.get_node(pointed_pos).name
|
|
local nodedef = minetest.registered_nodes[node_below]
|
|
--pointed_pos.y=pointed_pos.y+0.2
|
|
local kart = minetest.add_entity(pointed_pos, "minekart:kart")
|
|
if kart and placer then
|
|
--[[local ent = kart:get_luaentity()
|
|
local owner = placer:get_player_name()
|
|
ent.owner = owner]]--
|
|
kart:set_yaw(placer:get_look_horizontal())
|
|
itemstack:take_item()
|
|
end
|
|
|
|
return itemstack
|
|
end,
|
|
})
|
|
|
|
--
|
|
-- crafting
|
|
--
|
|
|
|
if minetest.get_modpath("default") then
|
|
minetest.register_craft({
|
|
output = "minekart:kart",
|
|
recipe = {
|
|
{"default:obsidian_block", "default:steel_ingot", "default:obsidian_block"},
|
|
{"default:steel_ingot", "default:mese_block", "default:steel_ingot"},
|
|
{"default:obsidian_block", "default:steel_ingot", "default:obsidian_block"},
|
|
}
|
|
})
|
|
end
|
|
|
|
|