crafting: clicking on the recipe will show all possible ingredients player has

src/net/torvald/terrarum/Terrarum.kt

@@ -948,3 +948,5 @@ fun distBetween(a: ActorWithBody, bpos: Vector2): Double {
     val dist = min(min(bpos.distanceSquared(apos1), bpos.distanceSquared(apos2)), bpos.distanceSquared(apos3))
     return dist.sqrt()
 }
+
+fun getHashStr(length: Int = 5) = (0 until length).map { "YBNDRFG8EJKMCPQXOTLVWIS2A345H769"[Math.random().times(32).toInt()] }.joinToString("")

src/net/torvald/terrarum/modulebasegame/ui/UICrafting.kt

@@ -155,6 +155,7 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
 
                             _getItemListPlayer().let {
                                 it.removeFromForceHighlightList(oldSelectedItems)
+                                filterPlayerListUsing(recipeClicked)
                                 it.addToForceHighlightList(selectedItems)
                                 it.rebuild(catAll)
                             }
@@ -236,7 +237,7 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
                         val wantsWall = tags.contains("WALL")
                         (mode == CraftingCodex.CraftingItemKeyMode.TAG && ItemCodex[itm]!!.hasAllTags(tags) && (wantsWall == itm.isWall())) // true if (wants wall and is wall) or (wants no wall and is not wall)
                     }
-                        changeIngredient(oldItem, itemID)
+                    changeIngredient(recipe, oldItem, itemID)
                     refreshCraftButtonStatus()
                 }
             } } }
@@ -271,7 +272,7 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
 
                     _getItemListPlayer().removeFromForceHighlightList(oldSelectedItems)
                     _getItemListPlayer().addToForceHighlightList(selectedItems)
-                        _getItemListPlayer().rebuild(catAll)
+                    filterPlayerListUsing(recipeClicked)
                     _getItemListIngredients().rebuild(catAll)
 
                     highlightCraftingCandidateButton(recipe)
@@ -330,6 +331,18 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
         addUIitem(buttonCraft)
     }
 
+    private fun filterPlayerListUsing(recipe: CraftingCodex.CraftingRecipe?) {
+        if (recipe == null)
+            itemListPlayer.rebuild(catAll)
+        else {
+            val items = recipe.ingredients.flatMap { getItemCandidatesForIngredient(getPlayerInventory(), it).map { it.itm } }.sorted()
+            val filterFun = { pair: InventoryPair ->
+                items.binarySearch(pair.itm) >= 0
+            }
+            itemListPlayer.rebuild(filterFun)
+        }
+    }
+
     var nearbyCraftingStations = emptyList<String>(); protected set
 
     fun getCraftingStationsWithinReach(): List<String> {
@@ -340,14 +353,14 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
         return nearbyCraftingStations.flatMap { (it.get() as CraftingStation).tags }
     }
 
-    private fun changeIngredient(old: InventoryPair, new: ItemID) {
+    private fun changeIngredient(recipe: CraftingCodex.CraftingRecipe?, old: InventoryPair, new: ItemID) {
         itemListPlayer.removeFromForceHighlightList(oldSelectedItems)
 
         oldSelectedItems.remove(old.itm)
         oldSelectedItems.add(new)
 
         itemListPlayer.addToForceHighlightList(oldSelectedItems)
-        itemListPlayer.rebuild(catAll)
+        filterPlayerListUsing(recipe)
 
         // change highlight status of itemListIngredients
         itemListIngredients.getInventory().let {
@@ -384,6 +397,7 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
         resetSpinner()
         // reset selected recipe status
         recipeClicked = null
+        filterPlayerListUsing(recipeClicked)
         highlightCraftingCandidateButton(null)
         ingredients.clear()
         itemListPlayer.removeFromForceHighlightList(oldSelectedItems)
@@ -411,6 +425,8 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
 
         UIItemInventoryItemGrid.tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
+
+        resetUI()
     }
 
     private var encumbrancePerc = 0f
@@ -507,7 +523,6 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
 
     override fun doOpening(delta: Float) {
         super.doOpening(delta)
-        resetUI()
         INGAME.setTooltipMessage(null)
     }
 
@@ -541,14 +556,28 @@ class UICrafting(val full: UIInventoryFull) : UICanvas(), HasInventory {
             val craftingStationAvailable: Boolean,
         )
 
-        fun getItemForIngredient(inventory: FixtureInventory, ingredient: CraftingCodex.CraftingIngredients): ItemID {
+        fun getItemCandidatesForIngredient(inventory: FixtureInventory, ingredient: CraftingCodex.CraftingIngredients): List<InventoryPair> {
             return if (ingredient.keyMode == CraftingCodex.CraftingItemKeyMode.TAG) {
                 val tags = ingredient.key.split(',')
                 val wantsWall = tags.contains("WALL")
                 // If the player has the required item, use it; otherwise, will take an item from the ItemCodex
                 inventory.filter { (itm, qty) ->
                     ItemCodex[itm]?.hasAllTags(tags) == true && qty >= ingredient.qty && (wantsWall == itm.isWall()) // true if (wants wall and is wall) or (wants no wall and is not wall)
-                }.maxByOrNull { it.qty }?.itm ?: ((ItemCodex.itemCodex.firstNotNullOfOrNull { if (it.value.hasTag(ingredient.key)) it.key else null }) ?: throw NullPointerException("Item with tag '${ingredient.key}' not found. Possible cause: game or a module not updated or installed"))
+                }
+            }
+            else {
+                listOf(InventoryPair(ingredient.key, -1))
+            }
+        }
+
+        fun getItemForIngredient(inventory: FixtureInventory, ingredient: CraftingCodex.CraftingIngredients): ItemID {
+            val candidate = getItemCandidatesForIngredient(inventory, ingredient)
+
+            return if (ingredient.keyMode == CraftingCodex.CraftingItemKeyMode.TAG) {
+                candidate.maxByOrNull { it.qty }?.itm ?: (
+                    (ItemCodex.itemCodex.firstNotNullOfOrNull { if (it.value.hasTag(ingredient.key)) it.key else null }) ?:
+                        throw NullPointerException("Item with tag '${ingredient.key}' not found. Possible cause: game or a module not updated or installed")
+                )
             }
             else {
                 ingredient.key

src/net/torvald/terrarum/modulebasegame/ui/UIItemCraftingCandidateGrid.kt

@@ -8,6 +8,7 @@ import net.torvald.terrarum.ceilToInt
 import net.torvald.terrarum.gameitems.GameItem
 import net.torvald.terrarum.itemproperties.CraftingCodex
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureInventory
+import net.torvald.terrarum.modulebasegame.gameactors.InventoryPair
 
 /**
  * Created by minjaesong on 2022-06-28.
@@ -69,7 +70,11 @@ class UIItemCraftingCandidateGrid(
         highlightRecipe(highlightedRecipe)
     }
 
+    private var currentFilter1 = arrayOf("")
+
     override fun rebuild(filter: Array<String>) {
+        currentFilter1 = filter
+
         // filtering policy: if the player have all the ingredient item (regardless of the amount!), make the recipe visible
         craftingRecipes.clear()
         CraftingRecipeCodex.props.forEach { (_, recipes) ->
@@ -111,14 +116,12 @@ class UIItemCraftingCandidateGrid(
 
 
         itemPageCount = (recipesSortList.size.toFloat() / items.size.toFloat()).ceilToInt()
-
-
-
         rebuildList = false
     }
 
-
+    override fun rebuild(filterFun: (InventoryPair) -> Boolean) {
-
+        rebuild(currentFilter1)
+    }
 
     override fun scrolled(amountX: Float, amountY: Float): Boolean {
         super.scrolled(amountX, amountY)

src/net/torvald/terrarum/modulebasegame/ui/UIItemInventoryItemGrid.kt

@@ -6,6 +6,7 @@ import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.OrthographicCamera
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import net.torvald.terrarum.*
+import net.torvald.terrarum.App.printdbg
 import net.torvald.terrarum.UIItemInventoryCatBar.Companion.CAT_ALL
 import net.torvald.terrarum.gameactors.AVKey
 import net.torvald.terrarum.gameitems.GameItem
@@ -54,6 +55,8 @@ open class UIItemInventoryItemGrid(
     //override var oldPosX = posX
     //override var oldPosY = posY
 
+    internal val instanceHash = getHashStr(5)
+
     var numberMultiplier = 1L
 
     private val hash = System.nanoTime()
@@ -81,7 +84,7 @@ open class UIItemInventoryItemGrid(
             arrayOf(GameItem.Category.MISC),
             arrayOf(CAT_ALL)
     )*/
-    protected var currentFilter = arrayOf(CAT_ALL)
+    protected var currentFilter: (InventoryPair) -> Boolean = { _: InventoryPair -> true }
 
     private val inventoryUI = parentUI
 
@@ -373,21 +376,21 @@ open class UIItemInventoryItemGrid(
         forceHighlightList.removeAll(items)
     }
 
-    open fun rebuild(filter: Array<String>) {
+    open fun rebuild(filterFun: (InventoryPair) -> Boolean) {
+        currentFilter = filterFun
+
         //println("Rebuilt inventory")
         //println("rebuild: actual itempage: $itemPage")
 
 
         //val filter = catIconsMeaning[selectedIcon]
-        currentFilter = filter
 
         inventorySortList.clear()
 
         // filter items
-        getInventory().forEach {
+        val filteredItems = getInventory().filter(filterFun)
-            if ((filter.contains((ItemCodex[it.itm]?.inventoryCategory ?: throw IllegalArgumentException("Unknown item: ${it.itm}"))) || filter[0] == CAT_ALL))
+        inventorySortList.addAll(filteredItems)
-                inventorySortList.add(it)
+
-        }
 
         // sort if needed
         // test sort by name
@@ -455,6 +458,12 @@ open class UIItemInventoryItemGrid(
         rebuildList = false
     }
 
+    open fun rebuild(filter: Array<String>) {
+        val filterFun = if (filter[0] == CAT_ALL) { item: InventoryPair -> true }
+        else { item: InventoryPair -> filter.contains(ItemCodex[item.itm]?.inventoryCategory ?: throw IllegalArgumentException("Unknown item: ${item.itm}")) }
+        rebuild(filterFun)
+    }
+
     override fun dispose() {
         tooltipShowing.remove(hash)
     }
@@ -485,7 +494,7 @@ open class UIItemInventoryItemGrid(
         super.keyDown(keycode)
 
         items.forEach { if (it.mouseUp) it.keyDown(keycode) }
-        rebuild(currentFilter)
+//        rebuild(currentFilter)
 
         return true
     }
@@ -494,7 +503,7 @@ open class UIItemInventoryItemGrid(
         super.keyUp(keycode)
 
         items.forEach { if (it.mouseUp) it.keyUp(keycode) }
-        rebuild(currentFilter)
+//        rebuild(currentFilter)
 
         return true
     }