capturetheflag/mods/ctf/ctf_flag/api.lua

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ctf_flag.registered_on_capture = {}
function ctf_flag.register_on_capture(func)
if ctf._mt_loaded then
error("You can't register callbacks at game time!")
end
table.insert(ctf_flag.registered_on_capture, func)
end
ctf_flag.registered_on_pick_up = {}
function ctf_flag.register_on_pick_up(func)
if ctf._mt_loaded then
error("You can't register callbacks at game time!")
end
table.insert(ctf_flag.registered_on_pick_up, func)
end
ctf_flag.registered_on_drop = {}
function ctf_flag.register_on_drop(func)
if ctf._mt_loaded then
error("You can't register callbacks at game time!")
end
table.insert(ctf_flag.registered_on_drop, func)
end
ctf_flag.registered_on_precapture = {}
function ctf_flag.register_on_precapture(func)
if ctf._mt_loaded then
error("You can't register callbacks at game time!")
end
table.insert(ctf_flag.registered_on_precapture, func)
end
ctf_flag.registered_on_prepick_up = {}
function ctf_flag.register_on_prepick_up(func)
if ctf._mt_loaded then
error("You can't register callbacks at game time!")
end
table.insert(ctf_flag.registered_on_prepick_up, func)
end
function ctf_flag.collect_claimed()
local claimed = {}
for _, team in pairs(ctf.teams) do
for i = 1, #team.flags do
if team.flags[i].claimed then
table.insert(claimed, team.flags[i])
end
end
end
return claimed
end
function ctf_flag.get_claimed_by_player(name)
local claimed = ctf_flag.collect_claimed()
for _, flag in pairs(claimed) do
if flag.claimed.player == name then
return name
end
end
end
function ctf_flag.player_drop_flag(name)
if not name then
return
end
local claimed = ctf_flag.collect_claimed()
for i = 1, #claimed do
local flag = claimed[i]
if flag.claimed.player == name then
flag.claimed = nil
local flag_name = ""
if flag.name then
flag_name = flag.name .. " "
end
flag_name = flag.team .. "'s " .. flag_name .. "flag"
ctf.hud.updateAll()
ctf.action("flag", name .. " dropped " .. flag_name)
minetest.chat_send_all(flag_name.." has returned.")
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for j = 1, #ctf_flag.registered_on_drop do
ctf_flag.registered_on_drop[j](name, flag)
end
end
end
end
-- add a flag to a team
function ctf_flag.add(team, pos)
if not team or team == "" then
return
end
ctf.log("flag", "Adding flag to " .. team .. " at (" .. pos.x ..
", " .. pos.y .. ", " .. pos.z .. ")")
if not ctf.team(team).flags then
ctf.team(team).flags = {}
end
pos.team = team
table.insert(ctf.team(team).flags,pos)
end
function ctf_flag.update(pos)
if minetest.get_node(pos).name ~= "ctf_flag:flag" then
return
end
local top = {x=pos.x,y=pos.y+1,z=pos.z}
local flagmeta = minetest.get_meta(pos)
if not flagmeta then
return
end
local flag_team_data = ctf_flag.get(pos)
if not flag_team_data or not ctf.team(flag_team_data.team)then
ctf.log("flag", "Flag does not exist! Deleting nodes. "..dump(pos))
minetest.set_node(pos,{name="air"})
minetest.set_node(top,{name="air"})
return
end
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local flag_name = flag_team_data.name
if flag_name and flag_name ~= "" then
flagmeta:set_string("infotext", flag_name.." - "..flag_team_data.team)
else
flagmeta:set_string("infotext", flag_team_data.team.."'s flag")
end
if not ctf.team(flag_team_data.team).data.color then
ctf.team(flag_team_data.team).data.color = "red"
end
if flag_team_data.claimed then
minetest.set_node(top,{name="ctf_flag:flag_captured_top"})
else
minetest.set_node(top,{name="ctf_flag:flag_top_"..ctf.team(flag_team_data.team).data.color})
end
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local topmeta = minetest.get_meta(top)
if flag_name and flag_name ~= "" then
topmeta:set_string("infotext", flag_name.." - "..flag_team_data.team)
else
topmeta:set_string("infotext", flag_team_data.team.."'s flag")
end
end
function ctf_flag.flag_tick(pos)
ctf_flag.update(pos)
minetest.get_node_timer(pos):start(5)
end
-- get a flag from a team
function ctf_flag.get(pos)
if not pos then
return
end
local result = nil
for _, team in pairs(ctf.teams) do
for i = 1, #team.flags do
if (
team.flags[i].x == pos.x and
team.flags[i].y == pos.y and
team.flags[i].z == pos.z
) then
if result then
minetest.chat_send_all("[CTF ERROR] Multiple teams have same flag. Please report this to the server operator / admin")
print("CTF ERROR DATA")
print("Multiple teams have same flag.")
print("This is a sign of ctf.txt corruption.")
print("----------------")
print(dump(result))
print(dump(team.flags[i]))
print("----------------")
else
result = team.flags[i]
end
end
end
end
return result
end
-- delete a flag from a team
function ctf_flag.delete(team, pos)
if not team or team == "" then
return
end
ctf.log("flag", "Deleting flag from " .. team .. " at (" .. pos.x ..
", " .. pos.y .. ", " .. pos.z .. ")")
for i = 1, #ctf.team(team).flags do
if (
ctf.team(team).flags[i].x == pos.x and
ctf.team(team).flags[i].y == pos.y and
ctf.team(team).flags[i].z == pos.z
) then
table.remove(ctf.team(team).flags,i)
return
end
end
end
function ctf_flag.assert_flag(flag)
minetest.get_voxel_manip(flag, { x = flag.x + 1, y = flag.y + 1, z = flag.z + 1})
local nodename = minetest.get_node(flag).name
if nodename ~= "ctf_flag:flag" then
ctf.log("flag", flag.team .. " has wrong node at flag position, " .. nodename .. ", correcting...")
minetest.set_node(flag, { name = "ctf_flag:flag"})
ctf_flag.update(flag)
end
end
function ctf_flag.assert_flags()
for tname, team in pairs(ctf.teams) do
ctf_flag.assert_flags_team(tname)
end
end
function ctf_flag.assert_flags_team(tname)
local team = ctf.team(tname)
if not tname or not team then
return false
end
if not team.flags then
team.flags = {}
end
for i=1, #team.flags do
ctf_flag.assert_flag(team.flags[i])
end
end