diff options
Diffstat (limited to 'builtin/game/register.lua')
| -rw-r--r-- | builtin/game/register.lua | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/builtin/game/register.lua b/builtin/game/register.lua index e5ba88f7d..3a13abfb3 100644 --- a/builtin/game/register.lua +++ b/builtin/game/register.lua @@ -407,6 +407,34 @@ local function make_registration_wrap(reg_fn_name, clear_fn_name) return list end +core.registered_on_player_hpchanges = { modifiers = { }, loggers = { } } +function core.registered_on_player_hpchange(player, hp_change) + local last = false + for i = #core.registered_on_player_hpchanges.modifiers, 1, -1 do + local func = core.registered_on_player_hpchanges.modifiers[i] + hp_change, last = func(player, hp_change) + if type(hp_change) ~= "number" then + local debuginfo = debug.getinfo(func) + error("The register_on_hp_changes function has to return a number at " .. + debuginfo.short_src .. " line " .. debuginfo.linedefined) + end + if last then + break + end + end + for i, func in ipairs(core.registered_on_player_hpchanges.loggers) do + func(player, hp_change) + end + return hp_change +end +function core.register_on_player_hpchange(func, modifier) + if modifier then + table.insert(core.registered_on_player_hpchanges.modifiers, func) + else + table.insert(core.registered_on_player_hpchanges.loggers, func) + end +end + core.registered_biomes = make_registration_wrap("register_biome", "clear_registered_biomes") core.registered_ores = make_registration_wrap("register_ore", "clear_registered_ores") core.registered_decorations = make_registration_wrap("register_decoration", "clear_registered_decorations") |