use raycast to find pointed object, add some config variables
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b1b233033b
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99
init.lua
99
init.lua
@ -1,5 +1,11 @@
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local player_waypoints = {}
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local update_interval = 1.31415
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local compass_precision = 10 -- set to 1 to show whole number or 10 for 1 decimal
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local waypoint_color = 0xFC7D0A
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local target_above = false
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local point_to_objects = false -- unimplemented
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local point_to_liquids = true
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local compass_range = 96
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-- lua metatables? what is that? :P
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-- local function get_compass_meta_id(meta)
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@ -18,33 +24,16 @@ local function set_compass_meta_label(meta, label)
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end
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local function pos_serialize(pos)
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-- strip "(" and ")"
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return string.sub(minetest.pos_to_string(pos), 2, -2)
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end
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local function pos_deserialize(str)
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-- numbers are separated by ","
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local tmp = {}
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for n in string.gmatch(str, "([^,]+)") do
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table.insert(tmp, n)
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end
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tmp[1] = tonumber(tmp[1]) or 0
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tmp[2] = tonumber(tmp[2]) or 0
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tmp[3] = tonumber(tmp[3]) or 0
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return {x = tmp[1], y = tmp[2], z = tmp[3]}
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end
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local function set_compass_meta_pos(meta, pos)
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local pos_str = pos_serialize(pos)
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local pos_str = minetest.serialize(pos)
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meta:set_string("waypoint_compass:position", pos_str)
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end
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local function get_compass_meta_pos(meta)
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return pos_deserialize(meta:get_string("waypoint_compass:position"))
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return minetest.deserialize(meta:get_string("waypoint_compass:position"))
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end
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-- local function set_compass_meta_pos(meta, pos)
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@ -57,23 +46,55 @@ end
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-- return minetest.get_position_from_hash(meta:get_int("waypoint_compass:position"))
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-- end
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minetest.register_tool("waypoint_compass:compass", {
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description = "Waypoint compass",
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short_description = "Waypoint compass",
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inventory_image = "Waypoint_compass_inventory_image.png",
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wield_scale = {x = 0.5, y = 0.5, z = 0.5},
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range = 160, -- TODO what's the good range?
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on_place = function(itemstack, placer, pointed_thing)
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if pointed_thing and pointed_thing.type == "node" then
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local pointed_pos = pointed_thing.above
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local meta = itemstack:get_meta()
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meta:set_string("description", string.format("Waypoint compass %s", minetest.pos_to_string(pointed_pos)))
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set_compass_meta_pos(meta, pointed_pos)
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--set_compass_meta_label(meta, minetest.pos_to_string(pointed_pos))
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--print("meta pos", minetest.pos_to_string(get_compass_meta_pos(meta)))
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return itemstack
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end
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end,
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local function set_waypoint_at_pointed_place(itemstack, user, pointed_thing)
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if pointed_thing and pointed_thing.type == "node" then
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local pointed_pos = target_above and pointed_thing.above or pointed_thing.under
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local meta = itemstack:get_meta()
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meta:set_string("description", string.format("Waypoint compass %s", minetest.pos_to_string(pointed_pos)))
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set_compass_meta_pos(meta, pointed_pos)
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set_compass_meta_label(meta, minetest.pos_to_string(pointed_pos))
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return itemstack
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end
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-- TODO handle entities?
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end
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-- return first thing player is pointing at
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local function raycast_crosshair(player, range)
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local p_pos = player:get_pos()
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local p_eye_height = player:get_properties().eye_height
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local p_eye_pos = { x = p_pos.x, y = p_pos.y + p_eye_height, z = p_pos.z }
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local to = vector.add(p_eye_pos, vector.multiply(player:get_look_dir(), range))
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local ray = minetest.raycast(p_eye_pos, to, point_to_objects, point_to_liquids)
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local pointed_thing = ray:next()
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return pointed_thing
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-- while pointed_thing do
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-- print(pointed_thing.type, minetest.pos_to_string(pointed_thing.under))
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-- pointed_thing = ray:next()
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-- end
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end
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minetest.register_tool(
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"waypoint_compass:compass", {
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description = "Waypoint compass",
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short_description = "Waypoint compass",
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inventory_image = "Waypoint_compass_inventory_image.png",
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wield_scale = {x = 0.5, y = 0.5, z = 0.5},
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range = 2.0, -- TODO what's the good range?
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on_place = function(itemstack, placer, pointed_thing)
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set_waypoint_at_pointed_place(itemstack, placer, pointed_thing)
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return itemstack
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end,
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on_secondary_use = function(itemstack, user, pointed_thing)
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if pointed_thing.type == "nothing" then
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if user:is_player() then
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pointed_thing = raycast_crosshair(user, compass_range)
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end
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end
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set_waypoint_at_pointed_place(itemstack, user, pointed_thing)
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return itemstack
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end,
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})
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@ -93,8 +114,8 @@ local function show_hud_waypoint(player, compass_item_meta)
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hud_elem_type = "waypoint",
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name = waypoint_name,
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text = "m",
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precision=1,
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number = 0xFC7D0A,
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precision= compass_precision,
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number = waypoint_color,
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world_pos = get_compass_meta_pos(compass_item_meta),
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})
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-- store HUD elemnt id to remove it later
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@ -120,7 +141,7 @@ minetest.register_globalstep(function(dtime)
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local waypoint_pos = get_compass_meta_pos(meta)
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-- remove different waypoint if it exists
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if player_waypoints[player_name] and
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(pos_serialize(player_waypoints[player_name].pos) ~= pos_serialize(waypoint_pos)) then
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(player_waypoints[player_name].pos ~= waypoint_pos) then
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remove_hud_waypoint(player, player_name)
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end
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-- show new waypoint
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