docs: lay down initial ideas for item-durability inspired game

item-durability-boardgame.md

@@ -0,0 +1,29 @@
+# Unnamed Item Durability Boardgame
+
+Solo boardgame which main idea relies on the item durability design concept from the Fire Emblem series.
+
+- Core idea revolves around the player having three item slots, which can be engaged / at rest:
+   - An engaged item will modify the property of the player's next action;
+   - Items have limited amounts of uses: when engaged, they consume 1 use, when out of uses they disappear.
+- Could be implemented as a game played in a 6x6 grid, where the player's actions will be "move north/east/south/west".
+- Some items will be weapons (only 1 can be engaged at a time), much like Crypt of the Necrodancer they have a range / pattern of tiles where the attack is applied, an attack value, and of course a durability.
+   - The player's main goal is to constantly have 1 working weapon, maybe multiple ones to raise their strategic options, but they will consume item slots (3 max)
+- Items slots will raise over the course of the game to increase strategic options
+- Goal could be to reach an exit tile on each floor, every 3 floors there is a boss where you need to defeat an enemy in particular
+- Some items will have effects on movement (move diagonally, move 2 tiles instead of 1, move backwards) while others will have supportive effects (Duct tape: enemies do not move this turn, Vigor potion: +1 attack for engaged weapon, some item: gold reward if engaged when killing an enemy)
+- Enemies will be cards on the board with an HP value, and a predictable, transparent movement & attack pattern communicated to the player. They may move before OR after the player's action
+   - Most basic enemy just goes towards the player, privileging horitonzal movement before vertical to break ties for example
+   - More complex enemies could follow varying patterns depending on turns, etc. To define
+- Idea to perhaps explore: there could be various kinds of terrain on the 6x6 grid, which carry over from one fight to the other:
+   - Example could be "grass terrain: fire weapons deal 1 more damage when the enemy is on them", or "ice: immediatly slip to the other end of this tile when entering it", or "brick wall: impassable"
+- I love deckbuiling so there could be a deckbuilding element allowing you to play 1 (or more effects if engaging certain items) from a hand of 3-4 cards (such as +1 attack, enhanced movement, placing terrain, ...)
+- Possibility to obtain passives (up to 1-2-3 during your run, depending on the character you are using)
+- Replayability comes from the rewards you get (from chests on the map, enemy defeat rewards, floor clear rewards) which are taken from a pool, and multiple characters could exist
+   - Character ideas: Alear (for the easy Fire Emblem comparison, could charge an Emblem over few turns and deploy another unit moving with them & applying damage), Patchouli Knowledge (Switching between 5 elements, changing each turn), Erika Furudo (Erika Furudo)
+
+There is a possibility for multiplayer here as well, if both players plan their turn in advance & resolve it when they are both set up
+
+## Prototyping
+
+- A very short gameplay loop can be experimented with on Tabletop Simulator to validate the above ideas & try to see if they flow correctly.
+- This could also be done by reusing assets from Fire Emblem Heroes / Fire Emblem Engage