297 lines
6.6 KiB
Lua
297 lines
6.6 KiB
Lua
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--
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-- Helper functions
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--
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local function get_sign(i)
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if i == 0 then
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return 0
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else
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return i/math.abs(i)
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end
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end
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local function get_velocity(vx, vy, vz, yaw)
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local x = math.cos(yaw)*vx+math.cos(math.pi/2+yaw)*vz
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local z = math.sin(yaw)*vx+math.sin(math.pi/2+yaw)*vz
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return {x=x, y=vy, z=z}
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end
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local function get_v(v)
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return math.sqrt(vx^2+vz^2)
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end
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--
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-- Heli entity
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--
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local heli = {
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physical = true,
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collisionbox = {-1,-0.6,-1, 1,0.3,1},
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--Just copy from lua api for test
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collide_with_objects = true,
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weight = 5,
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visual = "mesh",
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mesh = "root.x",
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--Player
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driver = nil,
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--Heli mesh
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model = nil,
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--In progress
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motor = nil,
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left = true,
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timer=0,
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--Rotation
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yaw=0,
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--Detect hit an object or node
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prev_y=0,
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--Speeds
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vx=0,
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vy=0,
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vz=0
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}
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local heliModel = {
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visual = "mesh",
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mesh = "heli.x",
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textures = {"blades.png","blades.png","heli.png","Glass.png"},
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}
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local motor = {
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physical = true,
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collisionbox = {-2,0.5,-1, 1,1,1},
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visual = "mesh",
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mesh = "motor.x",
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textures = {"motor.png"},
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driver = nil,
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left = true,
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timer=0,
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vx = 0,--Velo. for/back-ward
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vy = 0,--Velo. up/down
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vz = 0--Velo. side
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}
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function heli:on_rightclick(clicker)
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if not clicker or not clicker:is_player() then
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return
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end
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if self.driver and clicker == self.driver then
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clicker:set_attach(self.model, "Root", {x=0,y=0,z=0}, {x=0,y=0,z=0})
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self.driver = nil
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clicker:set_detach()
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self.model:set_animation({x=0,y=1},0, 0)
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elseif not self.driver then
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self.model:set_animation({x=0,y=10},10, 0)
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self.driver = clicker
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--self.driver:set_animation({ x= 81, y=160, },10,0)
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clicker:set_attach(self.model, "Root", {x=0,y=0,z=-10}, {x=-90,y=0,z=-90})
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--self.object:setyaw(clicker:get_look_yaw())
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end
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end
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function heliModel:on_activate(staticdata, dtime_s)
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self.object:set_armor_groups({immortal=1})
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local is_attached = false
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for _,object in ipairs(minetest.env:get_objects_inside_radius(self.object:getpos(), 2)) do
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if object and object:get_luaentity() and object:get_luaentity().name=="helicopter:heli" then
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if object:get_luaentity().model == nil then
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object:get_luaentity().model = self
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end
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if object:get_luaentity().model == self then
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is_attached = true
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end
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end
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end
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if is_attached == false then
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self.object:remove()
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end
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end
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function heli:on_activate(staticdata, dtime_s)
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self.object:set_armor_groups({immortal=1})
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self.prev_y=self.object:getpos()
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if self.model == nil then
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self.model = minetest.env:add_entity(self.object:getpos(), "helicopter:heliModel")
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self.model:set_attach(self.object, "Root", {x=0,y=0,z=2}, {x=0,y=0,z=0})
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end
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end
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function heli:get_staticdata(self)
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end
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function heli:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
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if self.model ~= nil then
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self.model:remove()
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end
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self.object:remove()
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if puncher and puncher:is_player() then
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puncher:get_inventory():add_item("main", "helicopter:heli")
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end
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end
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function heliModel:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
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self.object:remove()
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end
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function heli:on_step(dtime)
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--Prevent shaking heli while sitting in it
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if self.driver then
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--self.driver:set_animation({ x= 81, y=160, },10,0)
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self.yaw = self.driver:get_look_yaw()
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v = self.object:getvelocity()
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local ctrl = self.driver:get_player_control()
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--Forward/backward
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if ctrl.up then
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self.vx = self.vx + math.cos(self.driver:get_look_yaw())*0.1
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self.vz = self.vz + math.sin(self.driver:get_look_yaw())*0.1
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end
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if ctrl.down then
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self.vx = self.vx-math.cos(self.driver:get_look_yaw())*0.1
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self.vz = self.vz-math.sin(self.driver:get_look_yaw())*0.1
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end
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--Left/right
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if ctrl.left then
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self.vz = self.vz+math.cos(self.driver:get_look_yaw())*0.1
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self.vx = self.vx+math.sin(math.pi+self.driver:get_look_yaw())*0.1
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end
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if ctrl.right then
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self.vz = self.vz-math.cos(self.driver:get_look_yaw())*0.1
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self.vx = self.vx-math.sin(math.pi+self.driver:get_look_yaw())*0.1
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end
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--up/down
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if ctrl.jump then
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if self.vy<1.5 then
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self.vy = self.vy+0.2
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end
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end
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if ctrl.sneak then
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if self.vy>-1.5 then
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self.vy = self.vy-0.2
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end
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end
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--
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--Speed limit
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if math.abs(self.vx) > 4.5 then
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self.vx = 4.5*get_sign(self.vx)
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end
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if math.abs(self.vz) > 4.5 then
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self.vz = 4.5*get_sign(self.vz)
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end
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end
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--Decelerating
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local sx=get_sign(self.vx)
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self.vx = self.vx - 0.02*sx
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local sz=get_sign(self.vz)
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self.vz = self.vz - 0.02*sz
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local sy=get_sign(self.vy)
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self.vy = self.vy-0.01*sy
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--Stop
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if sx ~= get_sign(self.vx) then
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self.vx = 0
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end
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if sz ~= get_sign(self.vz) then
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self.vz = 0
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end
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--Speed limit
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if math.abs(self.vx) > 4.5 then
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self.vx = 4.5*get_sign(self.vx)
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end
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if math.abs(self.vz) > 4.5 then
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self.vz = 4.5*get_sign(self.vz)
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end
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if math.abs(self.vy) > 4.5 then
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self.vz = 4.5*get_sign(self.vz)
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end
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--Set speed to entity
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self.object:setvelocity({x=self.vx, y=self.vy,z=self.vz})
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end
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--
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--Registration
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--
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minetest.register_entity("helicopter:heli", heli)
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minetest.register_entity("helicopter:heliModel", heliModel)
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minetest.register_entity("helicopter:motor", motor)
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--minetest.register_entity("helicopter:rocket", rocket)
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--
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--Craft items
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--
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--Blades
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minetest.register_craftitem("helicopter:blades",{
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description = "Blades",
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inventory_image = "blades_inv.png",
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wield_image = "blades_inv.png",
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})
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--Cabin
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minetest.register_craftitem("helicopter:cabin",{
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description = "Cabin for heli",
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inventory_image = "cabin_inv.png",
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wield_image = "cabin_inv.png",
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})
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--Heli
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minetest.register_craftitem("helicopter:heli", {
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description = "Helicopter",
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inventory_image = "heli_inv.png",
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wield_image = "heli_inv.png",
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wield_scale = {x=1, y=1, z=1},
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liquids_pointable = false,
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on_place = function(itemstack, placer, pointed_thing)
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if pointed_thing.type ~= "node" then
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return
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end
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pointed_thing.under.y = pointed_thing.under.y+1
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minetest.env:add_entity(pointed_thing.under, "helicopter:heli")
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--minetest.env:add_entity(pointed_thing.under, "helicopter:heliModel")
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--minetest.env:add_entity(pointed_thing.under, "helicopter:motor")
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itemstack:take_item()
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return itemstack
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end,
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})
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--
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--Craft
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--
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minetest.register_craft({
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output = 'helicopter:blades',
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recipe = {
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{'', 'default:steel_ingot', ''},
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{'default:steel_ingot', 'group:stick', 'default:steel_ingot'},
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{'', 'default:steel_ingot', ''},
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}
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})
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minetest.register_craft({
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output = 'helicopter:cabin',
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recipe = {
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{'', 'group:wood', ''},
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{'group:wood', 'default:mese_crystal','default:glass'},
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{'group:wood','group:wood','group:wood'},
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}
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})
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minetest.register_craft({
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output = 'helicopter:heli',
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recipe = {
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{'', 'helicopter:blades', ''},
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{'helicopter:blades', 'helicopter:cabin',''},
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}
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})
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