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https://github.com/sys4-fr/server-nalc.git
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105 lines
3.2 KiB
Lua
105 lines
3.2 KiB
Lua
--[[local t = tonumber(minetest.get_meta(pos):get_string("cart_touring_velocity"))
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if not t then t=0 end
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t = 0
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if t>0 then
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local vx=math.abs(self.velocity.x)
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local vy=math.abs(self.velocity.y)
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local vz=math.abs(self.velocity.z)
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-- make v the largest of the 3 velocities
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local v=vx
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if vy>v then v=vy end
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if vz>v then v=vz end
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--
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local diff=0
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local acelordecl=0
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if v>t then
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diff=v-t
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acelordecl=-1
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elseif v<t then
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diff=t-v
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acelordecl=1
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end --v>t
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--minetest.log("action", " on_step t1 v="..v.." t="..t.." diff="..diff.." a="..a.." acelordecl="..acelordecl)
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--adjust for grav
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if self.velocity.y<0 then --going downhill so grav will acel by extra 0.13
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--if we are decel then add an extra 0.13 to how much we need to decel
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--if we are accel then subtract an extra 0.13 from how much we need to acel
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diff=diff-(0.13*acelordecl)
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elseif self.velocity.y>0 then --going uphill grav will decl by extra 0.10
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--if we are decel then subtract 0.1 from how much we need to decel
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--if we are acel then add 0.1 to how much we need to acel
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diff=diff+(0.1*acelordecl)
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end -- self.velocity.y<0
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--so now diff is the difference between cart velocity (after this turns grav)
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--and our target touring velocity
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--minetest.log("action", "*!* on_step t2 grav v="..v.." diff="..diff.." a="..a)
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if diff<a then --we dont want to over acel or decel
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a=diff
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elseif diff>a*4 then
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a=a*2 --if big difference, play catchup fast!
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elseif diff>a*3 then
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a=a*1.5 --if big difference, play catchup fast!
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end --diff<a
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a=a*acelordecl
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end -- if t>0--]]
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--[[minetest.register_node("carts:rail_tour", {
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description = "Touring Rail",
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drawtype = "raillike",
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tiles = {"carts_rail_tour.png", "carts_rail_curved_tour.png", "carts_rail_t_junction_tour.png", "carts_rail_crossing_tour.png"},
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inventory_image = "carts_rail_tour.png",
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wield_image = "carts_rail_tour.png",
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paramtype = "light",
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sunlight_propagates = true,
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is_ground_content = true,
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walkable = false,
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selection_box = {
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type = "fixed",
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fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
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},
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groups = {bendy = 2, snappy = 1, dig_immediate = 2, rail = 1, connect_to_raillike = 1},
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after_place_node = function(pos, placer, itemstack)
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if not mesecon then
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minetest.get_meta(pos):set_string("cart_acceleration", "0.5")
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minetest.get_meta(pos):set_string("cart_touring_velocity", cart.TARGET_TOUR_V)
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end
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end,
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mesecons = {
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effector = {
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action_on = function(pos, node)
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minetest.get_meta(pos):set_string("cart_acceleration", "0.5")
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end,
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action_off = function(pos, node)
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minetest.get_meta(pos):set_string("cart_acceleration", "0")
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end,
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},
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},
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})
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--]]
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--[[minetest.register_craft({
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type = "shapeless",
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output = "carts:rail_tour",
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recipe = {"group:rail", "default:clay_lump"},
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})--]]
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--minetest.register_alias("carts:tourrail", "carts:rail_tour")
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-- temporary
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--[[minetest.register_abm({
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nodes = {"group:rail"},
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func = function(pos)
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local name = minetest.get_node(pos).name
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minetest.remove_node(pos)
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minetest.place_node(pos,{name = name})
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end
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})--]]
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