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Improve documentation
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README.md
379
README.md
@ -7,44 +7,173 @@ With thanks to Wuzzy, kaeza, and MrIbby.
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Majority of awards are back ported from Calinou's old fork in Carbone, under same license.
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# API
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## Registering Awards
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# Introduction
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## Awards and Triggers
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An award is a single unlockable unit, registered like so:
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```lua
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awards.register_award("mymod:myaward", {
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description = "The title of the award",
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-- Optional:
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difficulty = 1.0, -- Difficulty multipler
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requires = { "amod:an_award" }, -- don't show this award or allow it to be unlocked
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-- until required awards are unlocked
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sound = {}, -- SimpleSoundSpec or false to play no sound
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-- if not provided, uses default sound
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image = "icon_image.png", -- uses default icon otherwise
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background = "background_image.png", -- uses default background otherwise
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trigger = { -- is only unlocked by direct calls to awards.unlock() otherwise
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type = "trigger_type",
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-- see specific docs on the trigger to see what else goes here
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},
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-- Callback. award_def is this table (plus some additional methods/members added by register_award)
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on_unlock = function(name, award_def) end,
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awards.register_award("mymod:award", {
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description = "My Example Award",
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})
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```
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If the award is counted, ie: there's a trigger.target property, then the difficulty
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multipler is timesd by target to get the overal difficulty. If the award isn't a
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counted type then the difficulty multiplier is used as the overal difficulty.
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Award difficulty affects how awards are sorted in a list - more difficult awards
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are further down the list.
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Awards are unlocked either using `awards.unlock()` or by a trigger being
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fullfilled. A trigger is a condition which unlocks an award. Triggers are
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registered at the same time as an award is registered:
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```lua
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awards.register_award("mymod:award", {
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description = "My Example Award",
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trigger = {
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type = "dig",
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node = "default:stone",
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target = 10,
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},
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})
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```
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The above trigger type is an example of a counted_key trigger:
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rather than a single counter there's a counter per key - in this
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case the key is the value of the `node` field. If you leave out
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the key in a `counted_key` trigger, then the total will be used
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instead. For example, here is an award which unlocks after you've
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placed 10 nodes of any type:
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```lua
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awards.register_award("mymod:award", {
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description = "Place 10 nodes!",
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trigger = {
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type = "place",
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target = 10,
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},
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})
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```
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You can also register an *Unlock Function*, which can return the name of an
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award to unlock it:
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```lua
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awards.register_award("mymod:award", {
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title = "Lava Miner",
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description = "Mine any block while being very close to lava.",
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})
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awards.register_on_dig(function(player, data)
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local pos = player:get_pos()
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if pos and (minetest.find_node_near(pos, 1, "default:lava_source") or
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minetest.find_node_near(pos, 1, "default:lava_flowing")) then
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return "mymod:award"
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end
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return nil
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end)
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```
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The above is a bad example as you don't actually need the stats data given.
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It would be better to register a `dignode` callback and call `awards.unlock()`
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if the condition is met.
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## Trigger Types
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The trigger type is used to determine which event will cause the trigger will be
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fulfilled. The awards mod comes with a number of predefined types, documented
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in [Builtin Trigger Types](#builtin-trigger-types).
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Trigger types are registered like so:
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```lua
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awards.register_trigger("chat", {
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type = "counted",
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progress = "@1/@2 chat messages",
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auto_description = { "Send a chat message", "Chat @1 times" },
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})
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minetest.register_on_chat_message(function(name, message)
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local player = minetest.get_player_by_name(name)
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if not player or string.find(message, "/") then
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return
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end
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awards.notify_chat(player)
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end)
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```
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A trigger type has a type as well, which determines how the data is stored and
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also how the trigger is fulfilled.
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**Trigger Type Types:**
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* **custom** requires you handle the calling of awards.unlock() yourself. You also
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need to implement on_register() yourself. You'll also probably want to implement
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`on_register()` to catch awards registered with your trigger type.
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* **counted** stores a single counter for each player which is incremented by calling
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`trigger:notify(player)`. Good for homogenous actions like number of chat messages,
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joins, and the like.
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* **counted_key** stores a table of counters each indexed by a key. There is also
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a total field (`__total`) which stores the sum of all counters. A counter is
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incremented by calling `trigger:notify(player, key)`. This is good for things like
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placing nodes or crafting items, where the key will be the item or node name.
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If `key` is an item, then you should also add `key_is_item = true` to the
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trigger type definition.
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As said, you could use a custom trigger if none of the other ones match your needs.
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Here's an example.
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```lua
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awards.register_trigger("foo", {
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type = "counted",
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progress = "@1/@2 foos",
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auto_description = { "Do a foo", "Foo @1 times" },
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})
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minetest.register_on_foo(function()
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for _, trigger in pairs(awards.on.foo) do
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-- trigger is either a trigger tables or
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-- or an unlock function.
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-- some complex logic
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if condition then
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awards.unlock(trigger)
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end
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end
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end)
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```
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## Award Difficulty
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Difficulty is used to determine how awards are sorted in awards lists.
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If the award trigger is counted, ie: the trigger requires a `target` property,
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then the difficulty multipler is timesd by `target` to get the overall difficulty.
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If the award isn't a counted type then the difficulty multiplier is used as the
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overal difficulty. Award difficulty affects how awards are sorted in a list -
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more difficult awards are further down the list.
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In real terms, `difficulty` is a relative difficulty to do one unit of the trigger
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if its counted, otherwise it's the relative difficulty of completely doing the
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award (if not-counted). For the `dig` trigger type, 1 unit would be 1 node dug.
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Actual code used to calculate award difficulty:
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@ -55,75 +184,46 @@ if def.trigger and def.trigger.target then
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end
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```
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## Registering Trigger Types
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```lua
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local trigger = awards.register_trigger(name, {
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type = "", -- type of trigger, defaults to custom
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progress = "%2/%2"
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auto_description = { "Mine: @2", "Mine: @1×@2" },
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on_register = function(self, def) end,
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-- "counted_key" only, when no key is given (ie: a total)
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auto_description_total = { "Mine @1 block.", "Mine @1 blocks." },
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-- "counted_key" only, get key for particular award - return nil for a total
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get_key = function(self, def)
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return minetest.registered_aliases[def.trigger.node] or def.trigger.node
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end,
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-- "counted_key" only, true if the key is an item name. On notify(),
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-- any watched groups will also be notified as `group:groupname` keys.
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key_is_item = true,
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})
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```
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Types:
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* "custom" requires you handle the calling of awards.unlock() yourself. You also
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need to implement on_register() yourself.
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* "counted" stores a single counter for each player which is incremented by calling
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trigger:notify(player). Good for homogenous actions like number of chat messages,
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joins, and the like.
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* "counted_key" stores a table of counters each indexed by a key. There is also
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a total field (`__total`) which stores the sum of all counters. A counter is
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incremented by calling trigger:notify(player, key). This is good for things like
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placing nodes or crafting items, where the key will be the item or node name.
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## Helper Functions
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# API
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* awards.register_award(name, def), the def table has the following fields:
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* `description` - the title of the award. Required.
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* `difficulty` - see [Award Difficulty](#award-difficulty).
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* `requires` - list of awards that need to be unlocked before this one
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is visible.
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* `sound` - `SimpleSoundSpec` table to play on unlock.
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`false` to disable unlock sound.
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* `image` - the icon image, use default otherwise.
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* `background` - the background image, use default otherwise.
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* `trigger` - trigger definition, see [Builtin Trigger Types](#builtin-trigger-types).
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* `on_unlock(name, def)` - callback on unlock.
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* awards.register_trigger(name, def), the def table has the following fields:
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* `type` - see [Trigger Types](#trigger-types).
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* `progress` - used to format progress, defaults to "%1/%2".
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* `auto_description` - a table of two elements. Each element is a format string. Element 1 is singular, element 2 is plural. Used for the award description (not title) if none is given.
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* `on_register(award_def)` - called when an award registers with this type.
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* "counted_key" only:
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* `auto_description_total` - Used if the trigger is for the total.
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* `get_key(self, def)` - get key for particular award, return nil for a total.
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* `key_is_item` - true if the key is an item name. On notify(),
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any watched groups will also be notified as `group:groupname` keys.
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* awards.register_on_unlock(func(name, def))
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* name is the player name
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* def is the award def.
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* return true to cancel HUD
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* awards.unlock(name, award)
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* gives an award to a player
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* name is the player name
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# Included in the Mod
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The API, above, allows you to register awards
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and triggers (things that look for events and unlock awards, they need
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to be registered in order to get details from award_def.trigger).
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However, all awards and triggers are separate from the API.
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They can be found in init.lua and triggers.lua
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## Triggers
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## Builtin Trigger Types
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Callbacks (register a function to be run)
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"dig", "place", "craft", "death", "chat", "join" or "eat"
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* dig type: Dig a node.
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* node: the dug node type. If nil, all dug nodes are counted
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* place type: Place a node.
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* node: the placed node type. If nil, all placed nodes are counted
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* eat type: Eat an item.
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* item: the eaten item type. If nil, all eaten items are counted
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* craft type: Craft something.
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* item: the crafted item type. If nil, all crafted items are counted
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* death type: Die.
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@ -131,72 +231,81 @@ Callbacks (register a function to be run)
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or nil for total deaths.
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* chat type: Write a chat message.
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* join type: Join the server.
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* (for all types) target - how many times to dig/place/craft/etc.
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* See Triggers
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* eat type: Eat an item.
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* item: the eaten item type. If nil, all eaten items are counted
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(for all types) target - how many times to dig/place/craft/etc.
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Each type has a register function like so:
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* awards.register_on_TRIGGERTYPE(func(player, data))
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* data is the player stats data
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* return award name or null
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### dig
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trigger = {
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type = "dig",
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node = "default:dirt",
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target = 50,
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}
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```lua
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trigger = {
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type = "dig",
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node = "default:dirt", -- item, alias, or group
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target = 50,
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}
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```
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### place
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trigger = {
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type = "place",
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node = "default:dirt",
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target = 50,
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}
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```lua
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trigger = {
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type = "place",
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node = "default:dirt", -- item, alias, or group
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target = 50,
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}
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```
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### craft
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```lua
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trigger = {
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type = "craft",
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node = "default:dirt", -- item, alias, or group
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target = 50,
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}
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```
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### death
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trigger = {
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type = "death",
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reason = "fall",
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target = 5,
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}
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```lua
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trigger = {
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type = "death",
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reason = "fall",
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target = 5,
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}
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```
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### chat
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trigger = {
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type = "chat",
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target = 100,
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}
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```lua
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trigger = {
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type = "chat",
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target = 100,
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}
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```
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### join
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trigger = {
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type = "join",
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target = 100,
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}
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```lua
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trigger = {
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type = "join",
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target = 100,
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}
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```
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### eat
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trigger = {
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type = "eat",
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item = "default:apple",
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target = 100,
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}
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## Callbacks relating to triggers
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* awards.register_on_dig(func(player, data))
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* data is player data (see below)
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* return award name or null
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* awards.register_on_place(func(player, data))
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* data is player data (see below)
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* return award name or null
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* awards.register_on_eat(func(player, data))
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* data is player data (see below)
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* return award name or null
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* awards.register_on_death(func(player, data))
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* data is player data (see below)
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* return award name or null
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* awards.register_on_chat(func(player, data))
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* data is player data (see below)
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* return award name or null
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* awards.register_on_join(func(player, data)
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* data is player data (see below)
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* return award name or null
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```lua
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trigger = {
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type = "eat",
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item = "default:apple",
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target = 100,
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}
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```
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