177 lines
4.5 KiB
Lua
177 lines
4.5 KiB
Lua
sliding = false
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local function get_sign(i)
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return i == 0 and 0 or i/math.abs(i)
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end
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local function get_velocity(v, yaw, y)
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return vector.new(-math.sin(yaw)*v, y, math.cos(yaw)*v)
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end
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local function get_v(v)
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return math.sqrt(v.x^2+v.z^2)
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end
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minetest.register_entity("uforun:ufo", {
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visual = "wielditem",
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textures = {"uforun:ufo"},
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visual_size = {x=0.667, y=0.667},
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collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
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physical = true,
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speed = 0,
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driver = nil,
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removed = nil,
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on_activate = function(self, staticdata)
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self.object:set_armor_groups({immortal = 1})
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self.object:setacceleration(vector.new(0, -20, 0))
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end,
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on_punch = function(self, puncher)
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if not puncher or not puncher:is_player() or self.removed then
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return
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end
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if puncher == self.driver then
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self.removed = true
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self.driver = nil
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self.object:remove()
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puncher:set_detach()
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--default.player_attached[puncher:get_player_name()] = false
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elseif not self.driver then
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self.removed = true
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self.object:remove()
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if not minetest.setting_getbool("creative_mode") then
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puncher:get_inventory():add_item("main", "uforun:ufo")
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end
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end
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end,
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on_rightclick = function(self, 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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local name = clicker:get_player_name()
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if clicker == self.driver then
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clicker:set_detach()
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self.driver = nil
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self.object:setvelocity(vector.new(0, 0, 0))
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--default.player_attached[name] = false
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--default.player_set_animation(clicker, "stand" , 30)
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local pos = clicker:getpos()
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pos.y = pos.y+0.2
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minetest.after(0.1, function()
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clicker:setpos(pos)
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end)
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elseif not self.driver then
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self.driver = clicker
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clicker:set_attach(self.object, "", vector.new(0, 0, 0), vector.new(0, 0, 0))
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--default.player_attached[name] = true
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--minetest.after(0.2, function()
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-- default.player_set_animation(clicker, "sit" , 30)
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--end)
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self.object:setyaw(clicker:get_look_yaw()-math.pi/2)
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end
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end,
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on_step = function(self, dtime)
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local pos = self.object:getpos()
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local velocity = self.object:getvelocity()
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self.speed = get_v(velocity) * get_sign(self.speed)
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if self.driver then
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local control = self.driver:get_player_control()
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local yaw = self.object:getyaw()
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if sliding then
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if control.up then
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self.speed = self.speed+0.2
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elseif control.down then
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self.speed = self.speed-0.2
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end
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else
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if control.up then
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self.speed = self.speed+0.3
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elseif control.down then
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self.speed = self.speed-0.3
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else
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self.speed = 0
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end
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end
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if control.left then
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if self.speed < 0 then
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self.object:setyaw(yaw-(1+dtime)*0.05)
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else
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self.object:setyaw(yaw+(1+dtime)*0.05)
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end
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elseif control.right then
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if self.speed < 0 then
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self.object:setyaw(yaw+(1+dtime)*0.05)
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else
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self.object:setyaw(yaw-(1+dtime)*0.05)
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end
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end
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local node = minetest.get_node(vector.new(pos.x, pos.y-1, pos.z))
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local nodedef = node and minetest.registered_nodes[node.name]
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if control.jump and velocity.y == 0
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and nodedef and nodedef.walkable then
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self.object:setvelocity(vector.new(velocity.x, 10, velocity.z))
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end
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if node and node.name == "levelnodes:finishline" then
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self.removed = true
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if self.driver and self.driver:is_player() then
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self.driver:set_detach()
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self.driver = nil
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end
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self.object:remove()
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end
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end
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velocity = self.object:getvelocity()
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if self.speed == 0 and velocity.x == 0 and velocity.y == 0 and velocity.z == 0 then
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self.object:setpos(self.object:getpos())
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return
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end
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local speed = get_sign(self.speed)
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self.speed = self.speed-0.02*speed
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if speed ~= get_sign(self.speed) then
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self.object:setvelocity(vector.new(0, 0, 0))
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self.speed = 0
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return
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end
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if math.abs(self.speed) > 5 then
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self.speed = 5*get_sign(self.speed)
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end
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self.object:setpos(self.object:getpos())
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self.object:setvelocity(get_velocity(self.speed, self.object:getyaw(), velocity.y))
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end
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})
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minetest.register_node("uforun:ufo", {
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description = "UFO",
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drawtype = "nodebox",
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paramtype = "light",
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tiles = {"uforun_ufo_top.png", "uforun_ufo_bottom.png", "uforun_ufo_side.png"},
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node_box = {
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type = "fixed",
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fixed = {
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{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
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{-0.3125, 0, -0.3125, 0.3125, 0.5, 0.3125}
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}
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},
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on_place = function(itemstack, _, 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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minetest.add_entity(pointed_thing.above, "uforun:ufo")
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if not minetest.setting_getbool("creative_mode") then
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itemstack:take_item()
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end
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return itemstack
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end
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})
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