185 lines
5.8 KiB
Lua
185 lines
5.8 KiB
Lua
hover = {}
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function hover:register_hovercraft(name, def)
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minetest.register_entity(name, {
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wield_image = "none.png",
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physical = true,
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collisionbox = {-0.8,0,-0.8, 0.8,1.2,0.8},
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visual = "mesh",
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mesh = "hovercraft.x",
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textures = def.textures,
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max_speed = def.max_speed,
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acceleration = def.acceleration,
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deceleration = def.deceleration,
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jump_velocity = def.jump_velocity,
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fall_velocity = def.fall_velocity,
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bounce = def.bounce,
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player = nil,
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sound = nil,
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thrust = 0,
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velocity = {x=0, y=0, z=0},
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last_pos = {x=0, y=0, z=0},
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timer = 0,
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on_activate = function(self, staticdata, dtime_s)
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self.object:set_armor_groups({immortal=1})
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self.object:set_animation({x=0, y=24}, 30)
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end,
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on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir)
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if self.player then
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return
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end
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if self.sound then
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minetest.sound_stop(self.sound)
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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", name)
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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 pos = self.object:getpos()
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if self.player and clicker == self.player then
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if self.sound then
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minetest.sound_stop(self.sound)
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minetest.sound_play("hovercraft_thrust_fade", {object = self.object})
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self.sound = nil
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end
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self.thrust = 0
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self.player = nil
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self.object:set_animation({x=0, y=0}, 30)
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clicker:set_animation({x=0, y=0})
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clicker:set_detach()
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elseif not self.player then
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self.player = clicker
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clicker:set_attach(self.object, "", {x=-2,y=16.5,z=0}, {x=0,y=90,z=0})
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clicker:set_animation({x=81, y=81})
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local yaw = clicker:get_look_yaw()
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self.object:setyaw(yaw)
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self.yaw = yaw
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pos.y = pos.y + 0.5
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minetest.sound_play("hovercraft_jump", {object = self.object})
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self.object:set_animation({x=0, y=0})
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end
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self.last_pos = vector.new(pos)
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self.object:setpos(pos)
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end,
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on_step = function(self, dtime)
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self.timer = self.timer + dtime
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if self.player then
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local yaw = self.player:get_look_yaw()
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if not yaw then
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return
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end
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self.object:setyaw(yaw)
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local ctrl = self.player:get_player_control()
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if ctrl.up then
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if self.thrust < self.max_speed then
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self.thrust = self.thrust + self.acceleration
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end
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local velocity = hover:get_velocity(self.thrust, self.velocity.y, 0, yaw)
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if velocity.x <= self.velocity.x - self.acceleration then
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self.velocity.x = self.velocity.x - self.acceleration
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elseif velocity.x >= self.velocity.x + self.acceleration then
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self.velocity.x = self.velocity.x + self.acceleration
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end
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if velocity.z <= self.velocity.z - self.acceleration then
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self.velocity.z = self.velocity.z - self.acceleration
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elseif velocity.z >= self.velocity.z + self.acceleration then
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self.velocity.z = self.velocity.z + self.acceleration
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end
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if not self.sound then
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self.object:set_animation({x=25, y=75}, 30)
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self.sound = minetest.sound_play("hovercraft_thrust_loop", {
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object = self.object,
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loop = true,
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})
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end
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elseif self.thrust > 0 then
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self.thrust = self.thrust - 0.1
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if self.sound then
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minetest.sound_stop(self.sound)
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minetest.sound_play("hovercraft_thrust_fade", {object = self.object})
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self.sound = nil
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end
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else
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self.object:set_animation({x=0, y=0})
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self.thrust = 0
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end
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if ctrl.jump and self.velocity.y == 0 then
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self.velocity.y = self.jump_velocity
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self.timer = 0
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minetest.sound_play("hovercraft_jump", {object = self.object})
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end
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if ctrl.sneak then
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self.player:set_animation({x=81, y=81})
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end
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end
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local pos = self.object:getpos()
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if self.timer > 0.5 then
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local node = minetest.env:get_node({x=pos.x, y=pos.y-0.5, z=pos.z})
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if node.name == "air" or node.name == "ignore" then
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self.velocity.y = 0 - self.fall_velocity
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else
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self.velocity.y = 0
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pos.y = math.floor(pos.y) + 0.5
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self.object:setpos(pos)
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end
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self.timer = 0
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end
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if self.last_pos.x == pos.x and math.abs(self.velocity.x) > 0.5 then
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self.velocity.x = self.velocity.x * (0 - self.bounce)
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self.thrust = 0
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minetest.sound_play("hovercraft_bounce", {object = self.object})
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end
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if self.last_pos.z == pos.z and math.abs(self.velocity.z) > 0.5 then
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self.velocity.z = self.velocity.z * (0 - self.bounce)
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self.thrust = 0
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minetest.sound_play("hovercraft_bounce", {object = self.object})
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end
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self.last_pos = vector.new(pos)
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if self.thrust < 1 then
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if self.velocity.x > self.deceleration then
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self.velocity.x = self.velocity.x - self.deceleration
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elseif self.velocity.x < 0 - self.deceleration then
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self.velocity.x = self.velocity.x + self.deceleration
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else
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self.velocity.x = 0
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end
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if self.velocity.z > self.deceleration then
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self.velocity.z = self.velocity.z - self.deceleration
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elseif self.velocity.z < 0 - self.deceleration then
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self.velocity.z = self.velocity.z + self.deceleration
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else
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self.velocity.z = 0
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end
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end
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self.object:setvelocity(self.velocity)
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end,
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})
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minetest.register_craftitem(name, {
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description = def.description,
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wield_image = "none.png",
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inventory_image = def.inventory_image,
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liquids_pointable = true,
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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 + 0.5
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minetest.env:add_entity(pointed_thing.under, name)
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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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end
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function hover: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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