Add quest log to inventory

[manuq]

From a game design document:

• Player should be “granted” quests on certain dialogues/events, readable in the quest log.
• Quests should display info relevant to the player. (If completed, if everything is collected, etc.)

Related: #2281

[manuq]

Here is an initial mockup:

Replace the HUD at the top-right with an inventory icon and the input hint to open it. The magical threads will be in the inventory (separate task).

When the Lore Elder gives the hint, we should save state:

After the dialogue, the inventory icon displays a notification:

What the Elder said is now always available under "Current Mission". The previous completed quest (tutorial) is also there under "Quests":

When the player starts the musician quest, current mission changes to a generic "complete the current quest and go back to the loom" message.

We could think about making "current mission" more granular inside quests. For example:

• Play the song to open the portal. (after musician tells you so).
• Repel the ink that InkDrinkers to fill the magic jars. (after dialogue tells you).
• ...

Question: should we have a single "current mission" line, or a checklist? The problem with the checklist is, what happens if the player does things in a different order? For example, they go to LinenVille and complete the Void quest prior to the musician one.

[wjt]

Personally I think we don't need to show the completed quests.

Thinking about some different states:

1) You are actively on a quest, i.e. GameState.quest is not null

In this case I think we should show:

1. Threads collected so far & threads remaining to collect on this quest
2. The last instruction you were given by an NPC (I think this is basically essential...)

2) You are not actively on a quest

In this case I think we should show all quests that you have either been told about, or started and later abandoned. Suppose you tried the Void quest first, gave up in the first scene and chose Abandon Quest, then talked to the LQ Elder who told you to go and find the Musician. Then I think we could show:

Quests
------

The Musician's Quest (this one needs a better name...)
[ ] Find the Musician in the Song Sanctuary   <- initial hint from Elder

The Void
[ ] Follow the path towards Moss's temple     <- initial hint from Elder, shown again here
[ ] Outrun the Void