Change connected railcar behavior to fix unreliable end of track stopping, set maximum acceleration of powered rails to 8 blocks per second (per https://minecraft.fandom.com/wiki/Powered_Rail), stop powered rails from powering the block underneath it (allows below rail hopper to work while the rail is powered like in https://www.youtube.com/watch?v=szjO0-duTAk), modify mcl_hoppers to allow triggering a hopper pull once the minecart is stopped on top of the hopper and wait before allowing the cart to move to allow redstone circuits time to process
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@ -188,8 +188,9 @@ local function make_staticdata( railtype, connected_at, dir )
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return {
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railtype = railtype,
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connected_at = connected_at,
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distance = 0,
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velocity = 0,
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dir = vector.new(dir),
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velocity = 0
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}
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end
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@ -380,115 +381,92 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
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local function do_movement_step(self, remaining_distance)
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local staticdata = self._staticdata
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local pos = self.object:get_pos()
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local dir = staticdata.dir or vector.new(1,0,0)
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dir = vector.new(dir)
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-- Calculate the distance to the next block
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-- This is just short of a full block to keep from jumping
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local distance_to_next = distance_to_next_block( dir, pos ) - 0.01
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local next_pos
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local next_dir,last_switch
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next_dir = dir
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if distance_to_next < 0.01 then
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distance_to_next = 0.5
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local pos = staticdata.connected_at
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-- Calculate next direction
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next_dir,last_switch = mcl_minecarts:get_rail_direction(pos, dir, nil, nil, staticdata.railtype)
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next_dir = vector.copy(next_dir) -- Needed to isolate the carts from one another
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elseif distance_to_next > max_step_distance then
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distance_to_next = max_step_distance
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end
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if not pos then return remaining_distance end
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if staticdata.velocity < 0.1 then return remaining_distance end
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local distance = remaining_distance
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if distance > distance_to_next then
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distance = distance_to_next
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end
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local remaining_in_block = 1 - ( staticdata.distance or 0 )
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local dinstance = 0
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if remaining_in_block > remaining_distance then
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distance = remaining_distance
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staticdata.distance = ( staticdata.distance or 0 ) + distance
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pos = pos + staticdata.dir * staticdata.distance
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else
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distance = remaining_in_block
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staticdata.distance = 0
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-- Calculate next position
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next_pos = vector.new(pos + next_dir * distance)
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-- Fix up position
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if next_dir.x == 0 then next_pos.x = math.floor(next_pos.x+0.5) end
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if next_dir.y == 0 then next_pos.y = math.floor(next_pos.y+0.5) end
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if next_dir.z == 0 then next_pos.z = math.floor(next_pos.z+0.5) end
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-- Direction flipped, stop
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if next_dir == dir * -1 then
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-- TODO: detach the cart if there isn't a stop after the rail
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staticdata.velocity = 0
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local next_pos_before_round = vector.copy(next_pos)
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next_pos = vector.round(next_pos + dir * 0.5)
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if DEBUG and self._driver then
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local node_name = minetest.get_node(next_pos).name
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print("Stopping cart on "..node_name.." at "..tostring(next_pos)
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.." pos="..tostring(pos)
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..",next_pos="..tostring(next_pos)
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..",next_pos_before_round="..tostring(next_pos_before_round)
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..",distance="..distance
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)
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-- Leave the old node
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local old_node_name = minetest.get_node(pos).name
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local old_node_def = minetest.registered_nodes[old_node_name]
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if old_node_def._mcl_minecarts_on_leave then
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old_node_def._mcl_minecarts_on_leave( pos, self )
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end
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-- Anchor at the next node
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pos = pos + staticdata.dir
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staticdata.connected_at = pos
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-- Enter the new node
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local new_node_name = minetest.get_node(pos).name
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local new_node_def = minetest.registered_nodes[new_node_name]
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if new_node_def._mcl_minecarts_on_enter then
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new_node_def._mcl_minecarts_on_enter( pos, self )
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end
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-- check for hopper under the rail
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local under_pos = pos - vector.new(0,1,0)
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local under_node_name = minetest.get_node(under_pos).name
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local under_node_def = minetest.registered_nodes[under_node_name]
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print( "under_node_name="..under_node_name..", hopper="..tostring(under_node_def.groups.hopper))
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if under_node_def and under_node_def.groups.hopper ~= 0 then
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print( "Attempt pull_from_minecart" )
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if mcl_hoppers.pull_from_minecart( self, under_pos, self._inv_size or 0 ) then
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staticdata.delay = 1.5
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end
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end
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-- Get the next direction
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next_dir,last_switch = mcl_minecarts:get_rail_direction(pos, staticdata.dir, nil, nil, staticdata.railtype)
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-- Handle end of track
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if next_dir == staticdata.dir * -1 then
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print("Stopping cart at "..tostring(pos))
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staticdata.velocity = 0
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distence = remaining_distance
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end
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-- Update cart direction
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staticdata.dir = next_dir
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end
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self.object:move_to(pos)
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-- Update cart orientation
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local yaw = 0
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if next_dir.x < 0 then
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local dir = staticdata.dir
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if dir.x < 0 then
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yaw = 0.5
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elseif next_dir.x > 0 then
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elseif dir.x > 0 then
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yaw = 1.5
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elseif dir.z < 0 then
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yaw = 1
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end
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self.object:set_yaw( yaw * math.pi )
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-- Update cart position
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local next_pos_rounded = vector.round(next_pos)
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staticdata.connected_at = next_pos_rounded
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staticdata.dir = next_dir
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self.object:move_to(next_pos)
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if DEBUG and self._driver then
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local prefix = " "
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if next_dir ~= dir then
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prefix = "--->"
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end
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print( prefix
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.. "pos="..tostring(pos)
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..",dir="..to_dirstring(dir)
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..",next_dir="..to_dirstring(next_dir)
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..",next_pos="..tostring(next_pos)
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..",velocity="..tostring(staticdata.velocity)
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..",distance="..tostring(distance)
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)
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end
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-- Handle track interactions
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local pos_rounded = vector.round(pos)
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if pos_rounded ~= next_pos_rounded then
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local old_node_name = minetest.get_node(pos_rounded).name
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local old_node_def = minetest.registered_nodes[old_node_name]
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if old_node_def._mcl_minecarts_on_leave then
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old_node_def._mcl_minecarts_on_leave( pos_rounded, self )
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end
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local new_node_name = minetest.get_node(next_pos_rounded).name
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local new_node_def = minetest.registered_nodes[new_node_name]
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if new_node_def._mcl_minecarts_on_enter then
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new_node_def._mcl_minecarts_on_enter( next_pos_rounded, self )
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end
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end
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-- Report distance traveled
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return distance
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end
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local function process_acceleration(self, timestep)
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local staticdata = self._staticdata
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if not staticdata.connected_at then return end
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local pos = self.object:get_pos()
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local pos = staticdata.connected_at
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local node_name = minetest.get_node(pos).name
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local node_def = minetest.registered_nodes[node_name]
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local max_vel = mcl_minecarts.speed_max
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if self._go_forward then
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self._acceleration = 2
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@ -499,16 +477,19 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
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elseif self._fueltime and self._fueltime > 0 then
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self._acceleration = 0.6
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else
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self._acceleration = node_def._rail_acceleration or -0.4
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if staticdata.velocity >= ( node_def._max_acceleration_velocity or max_vel ) then
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self._acceleration = 0
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else
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self._acceleration = node_def._rail_acceleration or -0.4
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end
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end
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if self._acceleration > 0 and staticdata.velocity < 0.1 then
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if self._acceleration > 0 and (staticdata.velocity or 0) < 0.1 then
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staticdata.velocity = 0.1
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end
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if math.abs(self._acceleration) > 0.1 then
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staticdata.velocity = ( staticdata.velocity or 0 ) + self._acceleration * timestep
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local max_vel = mcl_minecarts.speed_max
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if staticdata.velocity > max_vel then
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staticdata.velocity = max_vel
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elseif staticdata.velocity < 0.1 then
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@ -516,8 +497,8 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
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end
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end
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if false and staticdata.velocity > 0 then
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print( "acceleration="..tostring(self._acceleration)..",velocity="..tostring(staticdata.velocity)..
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if DEBUG and staticdata.velocity > 0 then
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print( " acceleration="..tostring(self._acceleration)..",velocity="..tostring(staticdata.velocity)..
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",timestep="..tostring(timestep))
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end
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end
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@ -526,6 +507,14 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
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local function do_movement( self, dtime )
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local staticdata = self._staticdata
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-- Allow the carts to be delay for the rest of the world to react before moving again
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if ( staticdata.delay or 0 ) > dtime then
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staticdata.delay = staticdata.delay - dtime
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return
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else
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staticdata.delay = 0
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end
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-- Break long movements into fixed-size steps so that
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-- it is impossible to jump across gaps due to server lag
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-- causing large timesteps
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@ -555,8 +544,8 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
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end
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local pos, rou_pos, node = self.object:get_pos()
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local update = {}
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local acceleration = 0
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--local update = {}
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--local acceleration = 0
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-- Controls
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local ctrl, player = nil, nil
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@ -50,7 +50,7 @@ end
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local rail_rules_long =
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{{x=-1, y= 0, z= 0, spread=true},
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{x= 1, y= 0, z= 0, spread=true},
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{x= 0, y=-1, z= 0, spread=true},
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-- {x= 0, y=-1, z= 0, spread=true},
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{x= 0, y= 1, z= 0, spread=true},
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{x= 0, y= 0, z=-1, spread=true},
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{x= 0, y= 0, z= 1, spread=true},
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@ -105,6 +105,7 @@ register_rail("mcl_minecarts:golden_rail_on",
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{
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_doc_items_create_entry = false,
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_rail_acceleration = 4,
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_max_acceleration_velocity = 8,
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mesecons = {
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conductor = {
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state = mesecon.state.on,
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@ -9,6 +9,8 @@ local function mcl_log(message)
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end
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end
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mcl_hoppers = {}
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--[[ BEGIN OF NODE DEFINITIONS ]]
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local mcl_hoppers_formspec = table.concat({
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@ -464,8 +466,8 @@ local function hopper_pull_from_mc(mc_ent, dest_pos, inv_size)
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dest_inv:add_item("main", stack:take_item())
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inv:set_stack("main", i, stack)
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-- Take one item and stop until next time
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return
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-- Take one item and stop until next time, report that we took something
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return true
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else
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mcl_log("no Room")
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end
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@ -475,6 +477,7 @@ local function hopper_pull_from_mc(mc_ent, dest_pos, inv_size)
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end
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end
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end
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mcl_hoppers.pull_from_minecart = hopper_pull_from_mc
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local function hopper_push_to_mc(mc_ent, dest_pos, inv_size)
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local dest_inv = mcl_entity_invs.load_inv(mc_ent, inv_size)
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