New carts rewrite!
To deal with long server step and to for adding some new features in future.master
AndrejIT
parent
479c8874ab
commit
6f0c23c85d
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@ -8,360 +8,512 @@ local cart_entity = {
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driver = nil,
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punched = false, -- used to re-send velocity and position
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velocity = {x=0, y=0, z=0}, -- only used on punch
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old_dir = {x=1, y=0, z=0}, -- random value to start the cart on punch
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old_pos = nil,
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old_switch = 0,
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railtype = nil,
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attached_items = {}
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punch_direction = true,
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control_left = nil,
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control_right = nil,
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attached_items = {},
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old_pos = nil, --rounded
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next_pos = nil, --rounded
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old_direction = nil,
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-- sound refresh interval = 1.0sec
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rail_sound = function(self, dtime)
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if not self.sound_ttl then
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self.sound_ttl = 1.0
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return
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elseif self.sound_ttl > 0 then
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self.sound_ttl = self.sound_ttl - dtime
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return
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end
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self.sound_ttl = 1.0
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if self.sound_handle then
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local handle = self.sound_handle
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self.sound_handle = nil
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minetest.after(0.2, minetest.sound_stop, handle)
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end
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local vel = self.object:getvelocity()
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local speed = vector.length(vel)
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if speed > 3 then
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self.sound_handle = minetest.sound_play(
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"carts_cart_moving", {
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object = self.object,
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gain = (speed / carts.speed_max) / 2,
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loop = true,
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})
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end
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end,
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--set yaw using vector
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set_yaw = function(self, v)
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if v.x == 0 and v.z == 0 then
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return --keep old jaw
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end
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local yaw = math.pi
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if v.z < 0 then
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yaw = math.pi - math.atan(v.x/v.z)
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elseif v.z > 0 then
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yaw = -math.atan(v.x/v.z)
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elseif v.x > 0 then
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yaw = -math.pi/2
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elseif v.x < 0 then
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yaw = math.pi/2
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end
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self.object:setyaw(yaw)
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end,
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--get yaw as a vector
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get_yaw = function(self)
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local yaw = self.object:getyaw()
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local v = {x=0, y=0, z=0}
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yaw = yaw + math.pi/2
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v.x = math.cos(yaw)
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v.z = math.sin(yaw)
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v = vector.normalize(v)
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return v
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end,
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--set velocity
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set_velocity = function(self, v)
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if not v then
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v = {x=0, y=0, z=0}
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end
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self.object:setvelocity(v)
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end,
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--align cart position on railroad
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precize_on_rail = function(self, pos)
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local v = self.object:getvelocity()
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local aligned_pos = table.copy(pos)
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if self.old_direction.x == 0 and math.abs(self.old_pos.x-pos.x)>0.2 then
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aligned_pos.x = self.old_pos.x
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self.object:setpos(aligned_pos)
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elseif self.old_direction.z == 0 and math.abs(self.old_pos.z-pos.z)>0.2 then
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aligned_pos.z = self.old_pos.z
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self.object:setpos(aligned_pos)
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elseif self.old_direction.y == 0 and math.abs(self.old_pos.y-pos.y)>0.2 then
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aligned_pos.y = self.old_pos.y
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self.object:setpos(aligned_pos)
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end
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end,
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--position, relative to
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--x-FRONT/BACK, z-LEFT/RIGHT
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get_pos_relative = function(self, rel_pos, position, direction)
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local pos = position
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if pos == nil then
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pos = self.object:getpos()
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end
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if not rel_pos then
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return pos
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elseif rel_pos.x == 0 and rel_pos.z == 0 then
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return {x=pos.x, y=pos.y+rel_pos.y, z=pos.z}
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end
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local v = direction
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if v == nil then
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local yaw = self.object:getyaw()
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v = {x=0, y=0, z=0}
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yaw = yaw + math.pi/2
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v.x = math.cos(yaw)
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v.z = math.sin(yaw)
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v = vector.normalize(v)
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end
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if --NORD
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v.x > 0 and
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v.z >= -v.x and v.z <= v.x
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then
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return {x=pos.x+rel_pos.x, y=pos.y+rel_pos.y, z=pos.z+rel_pos.z}
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elseif --EAST
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v.z < 0 and
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v.x >= v.z and v.x <= -v.z
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then
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return {x=pos.x-rel_pos.z, y=pos.y+rel_pos.y, z=pos.z-rel_pos.x}
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elseif --WEST
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v.z > 0 and
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v.x >= -v.z and v.x <= v.z
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then
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return {x=pos.x+rel_pos.z, y=pos.y+rel_pos.y, z=pos.z+rel_pos.x}
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elseif --SOUTH
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v.x < 0 and
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v.z >= v.x and v.z <= -v.x
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then
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return {x=pos.x-rel_pos.x, y=pos.y+rel_pos.y, z=pos.z-rel_pos.z}
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end
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minetest.log("warning", "Object direction not set")
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return pos --should not be reached
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end,
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--calculate next acceptable cart position
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get_next_rail_pos = function(self, pos, dir)
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local n_pos = nil
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if self.control_left then
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if minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=0, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=0, z=1}, pos, dir); --left
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=-1, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=-1, z=1}, pos, dir); --left down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=1, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=1, z=1}, pos, dir); --left up
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=0, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=0, z=0}, pos, dir); --front
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=1, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=1, z=0}, pos, dir); --up
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=-1, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=-1, z=0}, pos, dir); --down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=0, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=0, z=-1}, pos, dir); --right
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=-1, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=-1, z=-1}, pos, dir); --right down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=1, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=1, z=-1}, pos, dir); --right up
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else
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n_pos = nil
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end
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elseif self.control_right then
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if minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=0, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=0, z=-1}, pos, dir); --right
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=-1, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=-1, z=-1}, pos, dir); --right down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=1, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=1, z=-1}, pos, dir); --right up
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=0, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=0, z=0}, pos, dir); --front
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=1, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=1, z=0}, pos, dir); --up
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=-1, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=-1, z=0}, pos, dir); --down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=0, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=0, z=1}, pos, dir); --left
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=-1, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=-1, z=1}, pos, dir); --left down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=1, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=1, z=1}, pos, dir); --left up
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else
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n_pos = nil
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end
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else
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if minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=0, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=0, z=0}, pos, dir); --front
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=1, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=1, z=0}, pos, dir); --up
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=1, y=-1, z=0}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=1, y=-1, z=0}, pos, dir); --down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=0, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=0, z=1}, pos, dir); --left
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=0, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=0, z=-1}, pos, dir); --right
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=-1, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=-1, z=1}, pos, dir); --left down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=-1, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=-1, z=-1}, pos, dir); --right down
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=1, z=1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=1, z=1}, pos, dir); --left up
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elseif minetest.get_item_group(minetest.get_node(self:get_pos_relative({x=0, y=1, z=-1}, pos, dir)).name, "rail") > 0 then
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n_pos = self:get_pos_relative({x=0, y=1, z=-1}, pos, dir); --right up
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else
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n_pos = nil
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end
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end
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if n_pos then
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n_pos = vector.round(n_pos)
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end
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return n_pos
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end,
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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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--decrease speed after cart is left unattended
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self.object:setvelocity(vector.multiply(self.object:getvelocity(), 0.5))
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local pos = self.object:getpos()
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local d = self:get_yaw()
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self.old_pos = vector.round(pos)
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self.old_direction = self:get_yaw()
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--strict direction
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self.old_direction.y = 0
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if math.abs(self.old_direction.x) > math.abs(self.old_direction.z) then
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self.old_direction.z = 0
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else
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self.old_direction.x = 0
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end
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self.old_direction = vector.normalize(self.old_direction)
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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 p = vector.round(pos)
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local v = self.object:getvelocity()
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local s = vector.length(v)
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--reset if cart stopped because of energy loss
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if self.next_pos ~= nil and s < 0.01 then
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self.next_pos = nil
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end
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-- Get player controls
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if self.driver then
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player = minetest.get_player_by_name(self.driver)
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if player then
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ctrl = player:get_player_control()
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if ctrl and ctrl.up then
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self.control_left = nil
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self.control_right = nil
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elseif ctrl and ctrl.right then
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self.control_left = nil
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self.control_right = true
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elseif ctrl and ctrl.left then
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self.control_left = true
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self.control_right = nil
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elseif ctrl and ctrl.down then
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if (s - 1) >= 0 then
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s = s - 1.5
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end
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end
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end
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end
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--align cart on railroad
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self:precize_on_rail(pos)
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--calculate where cart will go next
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if self.next_pos == nil or
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(math.abs(self.old_pos.x - pos.x) + math.abs(self.old_pos.z - pos.z)) > 0.5 then
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local node = minetest.get_node(p)
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if node.name == "ignore" then
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--map not loaded yet
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self.next_pos = nil
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elseif minetest.get_item_group(node.name, "rail") > 0 and
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(math.abs(self.old_pos.x - pos.x) + math.abs(self.old_pos.z - pos.z)) > 1.5 then
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--cart went too far, accept new road
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self.old_pos = table.copy(p)
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self.next_pos = self:get_next_rail_pos(p, self.old_direction)
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s = s * 0.9
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elseif (math.abs(self.old_pos.x - pos.x) + math.abs(self.old_pos.z - pos.z)) > 1.5 then
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--cart went too far, return to old road
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if self.next_pos then
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local nextnext_pos = self:get_next_rail_pos(self.next_pos, self.old_direction)
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if nextnext_pos == nil then
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--dead end, stop cart
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self.old_pos = table.copy(self.next_pos)
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self.next_pos = nil
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self.object:setpos(self.old_pos)
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s = 0
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else
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--continue from last rail
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self.old_pos = table.copy(nextnext_pos)
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self.object:setpos(nextnext_pos)
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self.next_pos = self:get_next_rail_pos(nextnext_pos, self.old_direction)
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end
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end
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s = s * 0.9
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elseif minetest.get_item_group(node.name, "rail") > 0 and self.next_pos and
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(math.abs(self.next_pos.x - pos.x) + math.abs(self.next_pos.z - pos.z)) < 0.5 then
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--on next rail
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self.old_pos = table.copy(p)
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self.next_pos = self:get_next_rail_pos(p, self.old_direction)
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if self.next_pos == nil then
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--dead end, stop cart
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self.next_pos = nil
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self.object:setpos(self.old_pos)
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s = 0
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end
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elseif minetest.get_item_group(node.name, "rail") > 0 and self.next_pos == nil then
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--on rail position
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self.old_pos = table.copy(p)
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self.next_pos = self:get_next_rail_pos(p, self.old_direction)
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if self.next_pos == nil then
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--dead end, stop cart
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self.next_pos = nil
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self.object:setpos(self.old_pos)
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s = 0
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end
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end
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self.control_left = nil
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self.control_right = nil
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end
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--calculate next cart direction
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if self.old_pos ~=nil and self.next_pos ~= nil then
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local dir = vector.direction(self.old_pos, self.next_pos)
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--dir.y = 0
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--strict direction
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if math.abs(dir.x) > math.abs(dir.z) then
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dir.z = 0
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else
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dir.x = 0
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end
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dir = vector.normalize(dir)
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--more energy loss on turns
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if dir.x ~= self.old_direction.x or dir.z ~= self.old_direction.z then
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s = s - 0.4
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end
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--do not flip!
|
||||
if dir.x * self.old_direction.x ~= -1 and dir.z * self.old_direction.z ~= -1 then
|
||||
self.old_direction = table.copy(dir)
|
||||
end
|
||||
end
|
||||
|
||||
--handle punch
|
||||
if self.punched and self.punch_direction then
|
||||
if self.next_pos == nil then
|
||||
self.next_pos = self:get_next_rail_pos(p, self.old_direction)
|
||||
--wait...
|
||||
elseif (s + 1) <= carts.punch_speed_max then
|
||||
s = s + 1
|
||||
local dir = table.copy(self.punch_direction)
|
||||
dir.y = 0
|
||||
--strict direction
|
||||
if math.abs(dir.x) > math.abs(dir.z) then
|
||||
dir.z = 0
|
||||
else
|
||||
dir.x = 0
|
||||
end
|
||||
dir = vector.normalize(dir)
|
||||
self.old_direction = table.copy(dir)
|
||||
self.punched = nil
|
||||
else
|
||||
self.punched = nil
|
||||
end
|
||||
end
|
||||
|
||||
--check rail and handle energy loss/increase
|
||||
if self.next_pos ~= nil then
|
||||
local node = minetest.get_node(p)
|
||||
|
||||
if node.name == "carts:powerrail" then
|
||||
s = s + 0.5 --powerrail
|
||||
elseif node.name == "carts:brakerail" then
|
||||
s = s - 0.5 --brakerail
|
||||
else
|
||||
s = s - 0.05 --rail or something else
|
||||
end
|
||||
end
|
||||
|
||||
--mesecons support?
|
||||
-- --local acceleration = minetest.get_item_group(node.name, "acceleration")
|
||||
-- local acceleration = tonumber(minetest.get_meta(p):get_string("cart_acceleration"))--original PilzAdam version
|
||||
-- if acceleration > 0 or acceleration < 0 then
|
||||
-- s = s + acceleration --powerrail
|
||||
-- end
|
||||
|
||||
--handle uphill/downhill
|
||||
if self.next_pos ~= nil then
|
||||
if self.next_pos.y < self.old_pos.y then
|
||||
s = s + 0.5
|
||||
elseif self.next_pos.y > self.old_pos.y then
|
||||
s = s - 0.5
|
||||
end
|
||||
end
|
||||
|
||||
--limit speed
|
||||
if s > carts.speed_max then
|
||||
s = carts.speed_max
|
||||
elseif s < 0 then
|
||||
s = 0
|
||||
end
|
||||
|
||||
--set new cart object parameters
|
||||
v = vector.multiply(self.old_direction, s)
|
||||
self:set_velocity(v)
|
||||
self:set_yaw(self.old_direction)
|
||||
|
||||
--animation for uphill/downhill
|
||||
if self.next_pos then
|
||||
if self.next_pos.y < self.old_pos.y then
|
||||
self.object:set_animation({x=1, y=1}, 1, 0)
|
||||
elseif self.next_pos.y > self.old_pos.y then
|
||||
self.object:set_animation({x=2, y=2}, 1, 0)
|
||||
else
|
||||
self.object:set_animation({x=0, y=0}, 1, 0)
|
||||
end
|
||||
else
|
||||
self.object:set_animation({x=0, y=0}, 1, 0)
|
||||
end
|
||||
|
||||
--handle sound
|
||||
self:rail_sound(dtime)
|
||||
end,
|
||||
|
||||
on_rightclick = function(self, clicker)
|
||||
if not clicker or not clicker:is_player() then
|
||||
return
|
||||
end
|
||||
local player_name = clicker:get_player_name()
|
||||
if self.driver and player_name == self.driver then
|
||||
self.driver = nil
|
||||
carts:manage_attachment(clicker, nil)
|
||||
elseif not self.driver then
|
||||
self.driver = player_name
|
||||
carts:manage_attachment(clicker, self.object)
|
||||
end
|
||||
end,
|
||||
|
||||
on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, direction)
|
||||
-- Punched by non-player
|
||||
if not puncher or not puncher:is_player() then
|
||||
self.punched = true
|
||||
self.punch_direction = direction
|
||||
return
|
||||
end
|
||||
-- Player digs cart by sneak-punch
|
||||
if puncher:get_player_control().sneak then
|
||||
if self.sound_handle then
|
||||
minetest.sound_stop(self.sound_handle)
|
||||
end
|
||||
-- Detach driver and items
|
||||
if self.driver then
|
||||
if self.old_pos then
|
||||
self.object:setpos(self.old_pos)
|
||||
end
|
||||
local player = minetest.get_player_by_name(self.driver)
|
||||
carts:manage_attachment(player, nil)
|
||||
end
|
||||
for _,obj_ in ipairs(self.attached_items) do
|
||||
if obj_ then
|
||||
obj_:set_detach()
|
||||
end
|
||||
end
|
||||
-- Pick up cart
|
||||
local inv = puncher:get_inventory()
|
||||
if not (creative and creative.is_enabled_for
|
||||
and creative.is_enabled_for(puncher:get_player_name()))
|
||||
or not inv:contains_item("main", "carts:cart") then
|
||||
local leftover = inv:add_item("main", "carts:cart")
|
||||
-- If no room in inventory add a replacement cart to the world
|
||||
if not leftover:is_empty() then
|
||||
minetest.add_item(self.object:getpos(), leftover)
|
||||
end
|
||||
end
|
||||
self.object:remove()
|
||||
return
|
||||
end
|
||||
|
||||
self.punched = true
|
||||
self.punch_direction = puncher:get_look_dir()
|
||||
end
|
||||
}
|
||||
|
||||
function cart_entity:on_rightclick(clicker)
|
||||
if not clicker or not clicker:is_player() then
|
||||
return
|
||||
end
|
||||
local player_name = clicker:get_player_name()
|
||||
if self.driver and player_name == self.driver then
|
||||
self.driver = nil
|
||||
carts:manage_attachment(clicker, nil)
|
||||
elseif not self.driver then
|
||||
self.driver = player_name
|
||||
carts:manage_attachment(clicker, self.object)
|
||||
end
|
||||
end
|
||||
|
||||
function cart_entity:on_activate(staticdata, dtime_s)
|
||||
self.object:set_armor_groups({immortal=1})
|
||||
if string.sub(staticdata, 1, string.len("return")) ~= "return" then
|
||||
return
|
||||
end
|
||||
local data = minetest.deserialize(staticdata)
|
||||
if not data or type(data) ~= "table" then
|
||||
return
|
||||
end
|
||||
self.railtype = data.railtype
|
||||
if data.old_dir then
|
||||
self.old_dir = data.old_dir
|
||||
end
|
||||
if data.old_vel then
|
||||
self.old_vel = data.old_vel
|
||||
end
|
||||
end
|
||||
|
||||
function cart_entity:get_staticdata()
|
||||
return minetest.serialize({
|
||||
railtype = self.railtype,
|
||||
old_dir = self.old_dir,
|
||||
old_vel = self.old_vel
|
||||
})
|
||||
end
|
||||
|
||||
function cart_entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
|
||||
local pos = self.object:getpos()
|
||||
if not self.railtype then
|
||||
local node = minetest.get_node(pos).name
|
||||
self.railtype = minetest.get_item_group(node, "connect_to_raillike")
|
||||
end
|
||||
-- Punched by non-player
|
||||
if not puncher or not puncher:is_player() then
|
||||
local cart_dir = carts:get_rail_direction(pos, self.old_dir, nil, nil, self.railtype)
|
||||
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
|
||||
return
|
||||
end
|
||||
self.velocity = vector.multiply(cart_dir, 2)
|
||||
self.punched = true
|
||||
return
|
||||
end
|
||||
-- Player digs cart by sneak-punch
|
||||
if puncher:get_player_control().sneak then
|
||||
if self.sound_handle then
|
||||
minetest.sound_stop(self.sound_handle)
|
||||
end
|
||||
-- Detach driver and items
|
||||
if self.driver then
|
||||
if self.old_pos then
|
||||
self.object:setpos(self.old_pos)
|
||||
end
|
||||
local player = minetest.get_player_by_name(self.driver)
|
||||
carts:manage_attachment(player, nil)
|
||||
end
|
||||
for _,obj_ in ipairs(self.attached_items) do
|
||||
if obj_ then
|
||||
obj_:set_detach()
|
||||
end
|
||||
end
|
||||
-- Pick up cart
|
||||
local inv = puncher:get_inventory()
|
||||
if not (creative and creative.is_enabled_for
|
||||
and creative.is_enabled_for(puncher:get_player_name()))
|
||||
or not inv:contains_item("main", "carts:cart") then
|
||||
local leftover = inv:add_item("main", "carts:cart")
|
||||
-- If no room in inventory add a replacement cart to the world
|
||||
if not leftover:is_empty() then
|
||||
minetest.add_item(self.object:getpos(), leftover)
|
||||
end
|
||||
end
|
||||
self.object:remove()
|
||||
return
|
||||
end
|
||||
-- Player punches cart to alter velocity
|
||||
local vel = self.object:getvelocity()
|
||||
if puncher:get_player_name() == self.driver then
|
||||
if math.abs(vel.x + vel.z) > carts.punch_speed_max then
|
||||
return
|
||||
end
|
||||
end
|
||||
|
||||
local punch_dir = carts:velocity_to_dir(puncher:get_look_dir())
|
||||
punch_dir.y = 0
|
||||
local cart_dir = carts:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
|
||||
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
|
||||
return
|
||||
end
|
||||
|
||||
local punch_interval = 1
|
||||
if tool_capabilities and tool_capabilities.full_punch_interval then
|
||||
punch_interval = tool_capabilities.full_punch_interval
|
||||
end
|
||||
time_from_last_punch = math.min(time_from_last_punch or punch_interval, punch_interval)
|
||||
local f = 2 * (time_from_last_punch / punch_interval)
|
||||
|
||||
self.velocity = vector.multiply(cart_dir, f)
|
||||
self.old_dir = cart_dir
|
||||
self.punched = true
|
||||
end
|
||||
|
||||
local function rail_on_step_event(handler, obj, dtime)
|
||||
if handler then
|
||||
handler(obj, dtime)
|
||||
end
|
||||
end
|
||||
|
||||
-- sound refresh interval = 1.0sec
|
||||
local function rail_sound(self, dtime)
|
||||
if not self.sound_ttl then
|
||||
self.sound_ttl = 1.0
|
||||
return
|
||||
elseif self.sound_ttl > 0 then
|
||||
self.sound_ttl = self.sound_ttl - dtime
|
||||
return
|
||||
end
|
||||
self.sound_ttl = 1.0
|
||||
if self.sound_handle then
|
||||
local handle = self.sound_handle
|
||||
self.sound_handle = nil
|
||||
minetest.after(0.2, minetest.sound_stop, handle)
|
||||
end
|
||||
local vel = self.object:getvelocity()
|
||||
local speed = vector.length(vel)
|
||||
if speed > 0 then
|
||||
self.sound_handle = minetest.sound_play(
|
||||
"carts_cart_moving", {
|
||||
object = self.object,
|
||||
gain = (speed / carts.speed_max) / 2,
|
||||
loop = true,
|
||||
})
|
||||
end
|
||||
end
|
||||
|
||||
local function get_railparams(pos)
|
||||
local node = minetest.get_node(pos)
|
||||
return carts.railparams[node.name] or {}
|
||||
end
|
||||
|
||||
local function rail_on_step(self, dtime)
|
||||
local vel = self.object:getvelocity()
|
||||
if self.punched then
|
||||
vel = vector.add(vel, self.velocity)
|
||||
self.object:setvelocity(vel)
|
||||
self.old_dir.y = 0
|
||||
elseif vector.equals(vel, {x=0, y=0, z=0}) then
|
||||
return
|
||||
end
|
||||
|
||||
local pos = self.object:getpos()
|
||||
local update = {}
|
||||
|
||||
-- stop cart if velocity vector flips
|
||||
if self.old_vel and self.old_vel.y == 0 and
|
||||
(self.old_vel.x * vel.x < 0 or self.old_vel.z * vel.z < 0) then
|
||||
self.old_vel = {x = 0, y = 0, z = 0}
|
||||
self.old_pos = pos
|
||||
self.object:setvelocity(vector.new())
|
||||
self.object:setacceleration(vector.new())
|
||||
rail_on_step_event(get_railparams(pos).on_step, self, dtime)
|
||||
return
|
||||
end
|
||||
self.old_vel = vector.new(vel)
|
||||
|
||||
if self.old_pos and not self.punched then
|
||||
local flo_pos = vector.round(pos)
|
||||
local flo_old = vector.round(self.old_pos)
|
||||
if vector.equals(flo_pos, flo_old) then
|
||||
-- Do not check one node multiple times
|
||||
return
|
||||
end
|
||||
end
|
||||
|
||||
local ctrl, player
|
||||
|
||||
-- Get player controls
|
||||
if self.driver then
|
||||
player = minetest.get_player_by_name(self.driver)
|
||||
if player then
|
||||
ctrl = player:get_player_control()
|
||||
end
|
||||
end
|
||||
|
||||
if self.old_pos then
|
||||
-- Detection for "skipping" nodes
|
||||
local found_path = carts:pathfinder(
|
||||
pos, self.old_pos, self.old_dir, ctrl, self.old_switch, self.railtype
|
||||
)
|
||||
|
||||
if not found_path then
|
||||
-- No rail found: reset back to the expected position
|
||||
pos = vector.new(self.old_pos)
|
||||
update.pos = true
|
||||
--stop the madness
|
||||
self.object:setvelocity({x=0,y=0,z=0})
|
||||
self.old_vel = {x = 0, y = 0, z = 0}
|
||||
self.object:setacceleration({x = 0, y = 0, z = 0})
|
||||
self.velocity = {x = 0, y = 0, z = 0}
|
||||
--it won't stop :(
|
||||
end
|
||||
end
|
||||
|
||||
local cart_dir = carts:velocity_to_dir(vel)
|
||||
local railparams
|
||||
|
||||
-- dir: New moving direction of the cart
|
||||
-- switch_keys: Currently pressed L/R key, used to ignore the key on the next rail node
|
||||
local dir, switch_keys = carts:get_rail_direction(
|
||||
pos, cart_dir, ctrl, self.old_switch, self.railtype
|
||||
)
|
||||
|
||||
local new_acc = {x=0, y=0, z=0}
|
||||
if vector.equals(dir, {x=0, y=0, z=0}) then
|
||||
vel = {x = 0, y = 0, z = 0}
|
||||
pos = vector.round(pos)
|
||||
update.pos = true
|
||||
update.vel = true
|
||||
else
|
||||
-- Direction change detected
|
||||
if not vector.equals(dir, self.old_dir) then
|
||||
vel = vector.multiply(dir, math.abs(vel.x + vel.z))
|
||||
update.vel = true
|
||||
if dir.y ~= self.old_dir.y then
|
||||
pos = vector.round(pos)
|
||||
update.pos = true
|
||||
end
|
||||
end
|
||||
-- Center on the rail
|
||||
if dir.z ~= 0 and math.floor(pos.x + 0.5) ~= pos.x then
|
||||
pos.x = math.floor(pos.x + 0.5)
|
||||
update.pos = true
|
||||
end
|
||||
if dir.x ~= 0 and math.floor(pos.z + 0.5) ~= pos.z then
|
||||
pos.z = math.floor(pos.z + 0.5)
|
||||
update.pos = true
|
||||
end
|
||||
|
||||
-- Slow down or speed up..
|
||||
local acc = dir.y * -4.0
|
||||
|
||||
-- Get rail for corrected position
|
||||
railparams = get_railparams(pos)
|
||||
|
||||
-- no need to check for railparams == nil since we always make it exist.
|
||||
local speed_mod = railparams.acceleration
|
||||
if speed_mod and speed_mod ~= 0 then
|
||||
-- Try to make it similar to the original carts mod
|
||||
acc = acc + speed_mod
|
||||
else
|
||||
-- Handbrake or coast
|
||||
if ctrl and ctrl.down then
|
||||
acc = acc - 3
|
||||
else
|
||||
acc = acc - 0.4
|
||||
end
|
||||
end
|
||||
|
||||
new_acc = vector.multiply(dir, acc)
|
||||
end
|
||||
|
||||
-- Limits
|
||||
local max_vel = carts.speed_max
|
||||
for _, v in pairs({"x","y","z"}) do
|
||||
if math.abs(vel[v]) > max_vel then
|
||||
vel[v] = carts:get_sign(vel[v]) * max_vel
|
||||
new_acc[v] = 0
|
||||
update.vel = true
|
||||
end
|
||||
end
|
||||
|
||||
self.object:setacceleration(new_acc)
|
||||
self.old_pos = vector.new(pos)
|
||||
if not vector.equals(dir, {x=0, y=0, z=0}) then
|
||||
self.old_dir = vector.new(dir)
|
||||
end
|
||||
self.old_switch = switch_keys
|
||||
|
||||
if self.punched then
|
||||
-- Collect dropped items
|
||||
for _, obj_ in pairs(minetest.get_objects_inside_radius(pos, 1)) do
|
||||
if not obj_:is_player() and
|
||||
obj_:get_luaentity() and
|
||||
not obj_:get_luaentity().physical_state and
|
||||
obj_:get_luaentity().name == "__builtin:item" then
|
||||
|
||||
obj_:set_attach(self.object, "", {x=0, y=0, z=0}, {x=0, y=0, z=0})
|
||||
self.attached_items[#self.attached_items + 1] = obj_
|
||||
end
|
||||
end
|
||||
self.punched = false
|
||||
update.vel = true
|
||||
end
|
||||
|
||||
railparams = railparams or get_railparams(pos)
|
||||
|
||||
if not (update.vel or update.pos) then
|
||||
rail_on_step_event(railparams.on_step, self, dtime)
|
||||
return
|
||||
end
|
||||
|
||||
local yaw = 0
|
||||
if self.old_dir.x < 0 then
|
||||
yaw = 0.5
|
||||
elseif self.old_dir.x > 0 then
|
||||
yaw = 1.5
|
||||
elseif self.old_dir.z < 0 then
|
||||
yaw = 1
|
||||
end
|
||||
self.object:setyaw(yaw * math.pi)
|
||||
|
||||
local anim = {x=0, y=0}
|
||||
if dir.y == -1 then
|
||||
anim = {x=1, y=1}
|
||||
elseif dir.y == 1 then
|
||||
anim = {x=2, y=2}
|
||||
end
|
||||
self.object:set_animation(anim, 1, 0)
|
||||
|
||||
self.object:setvelocity(vel)
|
||||
if update.pos then
|
||||
self.object:setpos(pos)
|
||||
end
|
||||
|
||||
-- call event handler
|
||||
rail_on_step_event(railparams.on_step, self, dtime)
|
||||
end
|
||||
|
||||
function cart_entity:on_step(dtime)
|
||||
rail_on_step(self, dtime)
|
||||
rail_sound(self, dtime)
|
||||
end
|
||||
|
||||
minetest.register_entity("carts:cart", cart_entity)
|
||||
|
||||
minetest.register_craftitem("carts:cart", {
|
||||
|
|
@ -381,9 +533,9 @@ minetest.register_craftitem("carts:cart", {
|
|||
if not pointed_thing.type == "node" then
|
||||
return
|
||||
end
|
||||
if carts:is_rail(pointed_thing.under) then
|
||||
if minetest.get_item_group(minetest.get_node(pointed_thing.under).name, "rail") > 0 then
|
||||
minetest.add_entity(pointed_thing.under, "carts:cart")
|
||||
elseif carts:is_rail(pointed_thing.above) then
|
||||
elseif minetest.get_item_group(minetest.get_node(pointed_thing.above).name, "rail") > 0 then
|
||||
minetest.add_entity(pointed_thing.above, "carts:cart")
|
||||
else
|
||||
return
|
||||
|
|
|
|||
|
|
@ -1,10 +1,18 @@
|
|||
function carts:get_sign(z)
|
||||
if z == 0 then
|
||||
return 0
|
||||
else
|
||||
return z / math.abs(z)
|
||||
end
|
||||
end
|
||||
-- function carts:get_sign(z)
|
||||
-- if z == 0 then
|
||||
-- return 0
|
||||
-- else
|
||||
-- return z / math.abs(z)
|
||||
-- end
|
||||
-- end
|
||||
|
||||
-- function carts:velocity_to_dir(v)
|
||||
-- if math.abs(v.x) > math.abs(v.z) then
|
||||
-- return {x=carts:get_sign(v.x), y=carts:get_sign(v.y), z=0}
|
||||
-- else
|
||||
-- return {x=0, y=carts:get_sign(v.y), z=carts:get_sign(v.z)}
|
||||
-- end
|
||||
-- end
|
||||
|
||||
function carts:manage_attachment(player, obj)
|
||||
if not player then
|
||||
|
|
@ -26,161 +34,6 @@ function carts:manage_attachment(player, obj)
|
|||
end
|
||||
end
|
||||
|
||||
function carts:velocity_to_dir(v)
|
||||
if math.abs(v.x) > math.abs(v.z) then
|
||||
return {x=carts:get_sign(v.x), y=carts:get_sign(v.y), z=0}
|
||||
else
|
||||
return {x=0, y=carts:get_sign(v.y), z=carts:get_sign(v.z)}
|
||||
end
|
||||
end
|
||||
|
||||
function carts:is_rail(pos, railtype)
|
||||
local node = minetest.get_node(pos).name
|
||||
if node == "ignore" then
|
||||
local vm = minetest.get_voxel_manip()
|
||||
local emin, emax = vm:read_from_map(pos, pos)
|
||||
local area = VoxelArea:new{
|
||||
MinEdge = emin,
|
||||
MaxEdge = emax,
|
||||
}
|
||||
local data = vm:get_data()
|
||||
local vi = area:indexp(pos)
|
||||
node = minetest.get_name_from_content_id(data[vi])
|
||||
end
|
||||
if minetest.get_item_group(node, "rail") == 0 then
|
||||
return false
|
||||
end
|
||||
if not railtype then
|
||||
return true
|
||||
end
|
||||
return minetest.get_item_group(node, "connect_to_raillike") == railtype
|
||||
end
|
||||
|
||||
function carts:check_front_up_down(pos, dir_, check_up, railtype)
|
||||
local dir = vector.new(dir_)
|
||||
local cur
|
||||
|
||||
-- Front
|
||||
dir.y = 0
|
||||
cur = vector.add(pos, dir)
|
||||
if carts:is_rail(cur, railtype) then
|
||||
return dir
|
||||
end
|
||||
-- Up
|
||||
if check_up then
|
||||
dir.y = 1
|
||||
cur = vector.add(pos, dir)
|
||||
if carts:is_rail(cur, railtype) then
|
||||
return dir
|
||||
end
|
||||
end
|
||||
-- Down
|
||||
dir.y = -1
|
||||
cur = vector.add(pos, dir)
|
||||
if carts:is_rail(cur, railtype) then
|
||||
return dir
|
||||
end
|
||||
return nil
|
||||
end
|
||||
|
||||
function carts:get_rail_direction(pos_, dir, ctrl, old_switch, railtype)
|
||||
local pos = vector.round(pos_)
|
||||
local cur
|
||||
local left_check, right_check = true, true
|
||||
|
||||
-- Check left and right
|
||||
local left = {x=0, y=0, z=0}
|
||||
local right = {x=0, y=0, z=0}
|
||||
if dir.z ~= 0 and dir.x == 0 then
|
||||
left.x = -dir.z
|
||||
right.x = dir.z
|
||||
elseif dir.x ~= 0 and dir.z == 0 then
|
||||
left.z = dir.x
|
||||
right.z = -dir.x
|
||||
end
|
||||
|
||||
if ctrl then
|
||||
if old_switch == 1 then
|
||||
left_check = false
|
||||
elseif old_switch == 2 then
|
||||
right_check = false
|
||||
end
|
||||
if ctrl.left and left_check then
|
||||
cur = carts:check_front_up_down(pos, left, false, railtype)
|
||||
if cur then
|
||||
return cur, 1
|
||||
end
|
||||
left_check = false
|
||||
end
|
||||
if ctrl.right and right_check then
|
||||
cur = carts:check_front_up_down(pos, right, false, railtype)
|
||||
if cur then
|
||||
return cur, 2
|
||||
end
|
||||
right_check = true
|
||||
end
|
||||
end
|
||||
|
||||
-- Normal
|
||||
cur = carts:check_front_up_down(pos, dir, true, railtype)
|
||||
if cur then
|
||||
return cur
|
||||
end
|
||||
|
||||
-- Left, if not already checked
|
||||
if left_check then
|
||||
cur = carts:check_front_up_down(pos, left, false, railtype)
|
||||
if cur then
|
||||
return cur
|
||||
end
|
||||
end
|
||||
|
||||
-- Right, if not already checked
|
||||
if right_check then
|
||||
cur = carts:check_front_up_down(pos, right, false, railtype)
|
||||
if cur then
|
||||
return cur
|
||||
end
|
||||
end
|
||||
|
||||
-- Backwards
|
||||
if not old_switch then
|
||||
cur = carts:check_front_up_down(pos, {
|
||||
x = -dir.x,
|
||||
y = dir.y,
|
||||
z = -dir.z
|
||||
}, true, railtype)
|
||||
if cur then
|
||||
return cur
|
||||
end
|
||||
end
|
||||
|
||||
return {x=0, y=0, z=0}
|
||||
end
|
||||
|
||||
function carts:pathfinder(pos_, old_pos, old_dir, ctrl, pf_switch, railtype)
|
||||
local pos = vector.round(pos_)
|
||||
local pf_pos = vector.round(old_pos)
|
||||
local pf_dir = vector.new(old_dir)
|
||||
|
||||
for i = 1, 5 do
|
||||
if vector.equals(pf_pos, pos) then
|
||||
-- Success! Cart moved on correctly
|
||||
return true
|
||||
end
|
||||
|
||||
pf_dir, pf_switch = carts:get_rail_direction(pf_pos, pf_dir, ctrl, pf_switch, railtype)
|
||||
if vector.equals(pf_dir, {x=0, y=0, z=0}) then
|
||||
-- No way forwards
|
||||
return false
|
||||
end
|
||||
|
||||
pf_pos = vector.add(pf_pos, pf_dir)
|
||||
end
|
||||
-- Cart not found
|
||||
return false
|
||||
end
|
||||
|
||||
function carts:register_rail(name, def_overwrite, railparams)
|
||||
local def = {
|
||||
drawtype = "raillike",
|
||||
|
|
|
|||
|
|
@ -4,7 +4,7 @@ carts.modpath = minetest.get_modpath("carts")
|
|||
carts.railparams = {}
|
||||
|
||||
-- Maximal speed of the cart in m/s (min = -1)
|
||||
carts.speed_max = 7
|
||||
carts.speed_max = 10
|
||||
-- Set to -1 to disable punching the cart from inside (min = -1)
|
||||
carts.punch_speed_max = 5
|
||||
|
||||
|
|
|
|||
Binary file not shown.
|
Before Width: | Height: | Size: 459 B After Width: | Height: | Size: 1.0 KiB |
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Reference in New Issue