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https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-08-22 09:57:25 +02:00
Harden against unknown nodes
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659a387256
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@ -56,7 +56,7 @@ local function handle_cart_enter_exit(self, pos, next_dir, event)
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local check_pos = pos + dir * check[1] + right * check[2] + up * check[3]
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local node = minetest.get_node(check_pos)
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local node_def = minetest.registered_nodes[node.name]
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if node_def then
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-- node-specific hook
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local hook_name = "_mcl_minecarts_"..event..check[4]
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local hook = node_def[hook_name]
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@ -66,6 +66,7 @@ local function handle_cart_enter_exit(self, pos, next_dir, event)
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hook = mcl_minecarts[event..check[4]]
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if hook then hook(check_pos, self, next_dir, node_def) end
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end
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end
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-- Handle cart-specific behaviors
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local hook = self["_mcl_minecarts_"..event]
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@ -85,11 +86,13 @@ local function handle_cart_node_watches(self, dtime)
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for _,node_pos in ipairs(watches) do
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local node = minetest.get_node(node_pos)
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local node_def = minetest.registered_nodes[node.name]
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if node_def then
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local hook = node_def._mcl_minecarts_node_on_step
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if hook and hook(node_pos, self, dtime) then
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new_watches[#new_watches+1] = node_pos
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end
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end
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end
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staticdata.node_watches = new_watches
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end
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@ -197,11 +200,9 @@ local function calculate_acceleration(self, staticdata)
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acceleration = 0.6
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elseif staticdata.velocity >= ( node_def._max_acceleration_velocity or max_vel ) then
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-- Standard friction
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else
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if node_def._rail_acceleration then
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elseif node_def and node_def._rail_acceleration then
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acceleration = node_def._rail_acceleration * 4
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end
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end
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-- Factor in gravity after everything else
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local gravity_strength = 2.45 --friction * 5
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@ -860,11 +861,9 @@ function mcl_minecarts.place_minecart(itemstack, pointed_thing, placer)
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end
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local function dropper_place_minecart(dropitem, pos)
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local node = minetest.get_node(pos)
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local nodedef = minetest.registered_nodes[node.name]
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-- Don't try to place the minecart if pos isn't a rail
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if (nodedef.groups.rail or 0) == 0 then return false end
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local node = minetest.get_node(pos)
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if minetest.get_item_group(node.name, "rail") == 0 then return false end
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mcl_minecarts.place_minecart(dropitem, {
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above = pos,
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@ -207,8 +207,8 @@ local function update_rail_connections(pos, opt)
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local node = minetest.get_node(pos)
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local nodedef = minetest.registered_nodes[node.name]
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if not nodedef._mcl_minecarts then
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minetest.log("warning", "attemting to rail connect "..node.name)
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if not nodedef or not nodedef._mcl_minecarts then
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minetest.log("warning", "attemting to rail connect to "..node.name)
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return
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end
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