diff options
Diffstat (limited to 'boost_cart/functions.lua')
| -rw-r--r-- | boost_cart/functions.lua | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/boost_cart/functions.lua b/boost_cart/functions.lua deleted file mode 100644 index ec04bb7..0000000 --- a/boost_cart/functions.lua +++ /dev/null @@ -1,248 +0,0 @@ -function boost_cart:get_sign(z) - if z == 0 then - return 0 - else - return z / math.abs(z) - end -end - -function boost_cart:manage_attachment(player, obj) - if not player then - return - end - local status = obj ~= nil - local player_name = player:get_player_name() - if default.player_attached[player_name] == status then - return - end - default.player_attached[player_name] = status - - if status then - local y_pos = self.old_player_model and 6 or -4.2 - player:set_attach(obj, "", {x=0, y=y_pos, z=0}, {x=0, y=0, z=0}) - player:set_eye_offset({x=0, y=-4, z=0},{x=0, y=-4, z=0}) - else - player:set_detach() - player:set_eye_offset({x=0, y=0, z=0},{x=0, y=0, z=0}) - end -end - -function boost_cart:velocity_to_dir(v) - if math.abs(v.x) > math.abs(v.z) then - return {x=self:get_sign(v.x), y=self:get_sign(v.y), z=0} - else - return {x=0, y=self:get_sign(v.y), z=self:get_sign(v.z)} - end -end - -local get_node = minetest.get_node -local get_item_group = minetest.get_item_group -function boost_cart:is_rail(pos, railtype) - local node = 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 get_item_group(node, "rail") == 0 then - return false - end - if not railtype then - return true - end - return get_item_group(node, "connect_to_raillike") == railtype -end - -function boost_cart:check_front_up_down(pos, dir_, check_up, railtype) - local dir = vector.new(dir_) - local cur = nil - - -- Front - dir.y = 0 - cur = vector.add(pos, dir) - if self:is_rail(cur, railtype) then - return dir - end - -- Up - if check_up then - dir.y = 1 - cur = vector.add(pos, dir) - if self:is_rail(cur, railtype) then - return dir - end - end - -- Down - dir.y = -1 - cur = vector.add(pos, dir) - if self:is_rail(cur, railtype) then - return dir - end - return nil -end - -function boost_cart:get_rail_direction(pos_, dir, ctrl, old_switch, railtype) - local pos = vector.round(pos_) - local cur = nil - 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 = self: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 = self:check_front_up_down(pos, right, false, railtype) - if cur then - return cur, 2 - end - right_check = true - end - end - - -- Normal - cur = self:check_front_up_down(pos, dir, true, railtype) - if cur then - return cur - end - - -- Left, if not already checked - if left_check then - cur = self: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 = self:check_front_up_down(pos, right, false, railtype) - if cur then - return cur - end - end - - -- Backwards - if not old_switch then - cur = self: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 boost_cart:pathfinder(pos_, old_pos, old_dir, distance, ctrl, - pf_switch, railtype) - - local pos = vector.round(pos_) - if vector.equals(old_pos, pos) then - return - end - - local pf_pos = vector.round(old_pos) - local pf_dir = vector.new(old_dir) - distance = math.min(boost_cart.path_distance_max, - math.floor(distance + 1)) - - for i = 1, distance do - pf_dir, pf_switch = self:get_rail_direction( - pf_pos, pf_dir, ctrl, pf_switch or 0, railtype) - - if vector.equals(pf_dir, {x=0, y=0, z=0}) then - -- No way forwards - return pf_pos, pf_dir - end - - pf_pos = vector.add(pf_pos, pf_dir) - - if vector.equals(pf_pos, pos) then - -- Success! Cart moved on correctly - return - end - end - -- Not found. Put cart to predicted position - return pf_pos, pf_dir -end - -function boost_cart:boost_rail(pos, amount) - minetest.get_meta(pos):set_string("cart_acceleration", tostring(amount)) - for _,obj_ in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do - if not obj_:is_player() and - obj_:get_luaentity() and - obj_:get_luaentity().name == "carts:cart" then - obj_:get_luaentity():on_punch() - end - end -end - -function boost_cart:register_rail(name, def_overwrite) - local def = { - drawtype = "raillike", - paramtype = "light", - sunlight_propagates = true, - is_ground_content = false, - walkable = false, - selection_box = { - type = "fixed", - fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2}, - } - } - for k, v in pairs(def_overwrite) do - def[k] = v - end - if not def.inventory_image then - def.wield_image = def.tiles[1] - def.inventory_image = def.tiles[1] - end - - minetest.register_node(name, def) -end - -function boost_cart:get_rail_groups(additional_groups) - -- Get the default rail groups and add more when a table is given - local groups = { - dig_immediate = 2, - attached_node = 1, - rail = 1, - connect_to_raillike = 1 - } - if minetest.raillike_group then - groups.connect_to_raillike = minetest.raillike_group("rail") - end - if type(additional_groups) == "table" then - for k, v in pairs(additional_groups) do - groups[k] = v - end - end - return groups -end |