colour-changing durability and encumbrance bar

src/net/torvald/terrarum/UIItemInventoryElem.kt

@@ -5,12 +5,12 @@ import com.badlogic.gdx.graphics.Camera
 import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.g2d.TextureRegion
-import net.torvald.colourutil.CIELabUtil.darkerLab
 import net.torvald.terrarum.itemproperties.GameItem
 import net.torvald.terrarum.itemproperties.ItemCodex
 import net.torvald.terrarum.modulebasegame.Ingame
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellBase
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes
 import net.torvald.terrarum.ui.UIItemTextButton
 
 /***
@@ -45,8 +45,6 @@ class UIItemInventoryElem(
         val height = 48
         val UNIQUE_ITEM_HAS_NO_AMOUNT = -1
 
-        internal val durabilityCol = Color(0x22ff11_ff)
-        internal val durabilityBack: Color; get() = durabilityCol.darkerLab(0.4f)
         internal val durabilityBarThickness = 3f
     }
 
@@ -126,11 +124,14 @@ class UIItemInventoryElem(
             // durability metre
             val barFullLen = (width - 8f) - textOffsetX
             val barOffset = posX + textOffsetX
+            val percentage = if (item!!.maxDurability < 0.00001f) 0f else item!!.durability / item!!.maxDurability
+            val durabilityCol = UIItemInventoryCellCommonRes.getHealthMeterColour(percentage, 0f, 1f)
+            val durabilityBack = durabilityCol mul UIItemInventoryCellCommonRes.meterBackDarkening
             if (item!!.maxDurability > 0.0) {
                 batch.color = durabilityBack
                 batch.drawStraightLine(barOffset, posY + durabilityBarOffY, barOffset + barFullLen, durabilityBarThickness, false)
                 batch.color = durabilityCol
-                batch.drawStraightLine(barOffset, posY + durabilityBarOffY, barOffset + barFullLen * (item!!.durability / item!!.maxDurability), durabilityBarThickness, false)
+                batch.drawStraightLine(barOffset, posY + durabilityBarOffY, barOffset + barFullLen * percentage, durabilityBarThickness, false)
             }
 
 

src/net/torvald/terrarum/UIItemInventoryElemSimple.kt

@@ -10,6 +10,7 @@ import net.torvald.terrarum.itemproperties.ItemCodex
 import net.torvald.terrarum.modulebasegame.Ingame
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellBase
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes
 import net.torvald.terrarum.ui.UIItemTextButton
 
 /**
@@ -94,11 +95,14 @@ class UIItemInventoryElemSimple(
                 val barFullLen = width
                 val barOffset = posX.toFloat()
                 val thickness = UIItemInventoryElem.durabilityBarThickness
+                val percentage = item!!.durability / item!!.maxDurability
+                val durabilityCol = UIItemInventoryCellCommonRes.getHealthMeterColour(percentage, 0f, 1f)
+                val durabilityBack = durabilityCol mul UIItemInventoryCellCommonRes.meterBackDarkening
                 if (item!!.maxDurability > 0.0) {
-                    batch.color = UIItemInventoryElem.durabilityBack
+                    batch.color = durabilityBack
                     batch.drawStraightLine(barOffset, posY + height - thickness, barOffset + barFullLen, thickness, false)
-                    batch.color = UIItemInventoryElem.durabilityCol
-                    batch.drawStraightLine(barOffset, posY + height - thickness, barOffset + barFullLen * (item!!.durability / item!!.maxDurability), thickness, false)
+                    batch.color = durabilityCol
+                    batch.drawStraightLine(barOffset, posY + height - thickness, barOffset + barFullLen * percentage, thickness, false)
                 }
             }
             // draw item count when applicable

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

@@ -7,6 +7,7 @@ import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.glutils.FrameBuffer
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer
 import net.torvald.terrarum.*
+import net.torvald.terrarum.AppLoader.IS_DEVELOPMENT_BUILD
 import net.torvald.terrarum.AppLoader.printdbg
 import net.torvald.terrarum.Terrarum.gamepadLabelEast
 import net.torvald.terrarum.Terrarum.gamepadLabelLStick
@@ -229,7 +230,7 @@ class UIInventoryFull(
     private val shapeRenderer = ShapeRenderer()
     private val gradHeight = 48f
 
-    private val weightBarWidth = 60f
+    private val weightBarWidth = 64f
 
     private var xEnd = (Terrarum.WIDTH + internalWidth).div(2).toFloat()
     private var yEnd = (Terrarum.HEIGHT + internalHeight).div(2).toFloat()
@@ -465,8 +466,6 @@ class UIInventoryFull(
         gameMenuButtons.render(batch, camera)
     }
 
-    private val encumbranceBarBackCol = Color(0xa0a0a0_ff.toInt())
-
     private fun renderScreenInventory(batch: SpriteBatch, camera: Camera) {
         itemList.render(batch, camera)
         equipped.render(batch, camera)
@@ -483,31 +482,41 @@ class UIInventoryFull(
 
         Terrarum.fontGame.draw(batch,
                 encumbranceText,
-                xEnd - 9 - Terrarum.fontGame.getWidth(encumbranceText) - weightBarWidth + inventoryScrOffX,
+                xEnd - 6 - Terrarum.fontGame.getWidth(encumbranceText) - weightBarWidth + inventoryScrOffX,
                 yEnd-20
         )
 
         // encumbrance bar background
-        blendMul(batch)
-        batch.color = encumbranceBarBackCol
+        blendNormal(batch)
+        val encumbCol = UIItemInventoryCellCommonRes.getHealthMeterColour(1f - encumbrancePerc, 0f, 1f)
+        val encumbBack = encumbCol mul UIItemInventoryCellCommonRes.meterBackDarkening
+        batch.color = encumbBack
         batch.fillRect(
-                xEnd - 3 - weightBarWidth + inventoryScrOffX,
+                xEnd - weightBarWidth + inventoryScrOffX,
                 yEnd-20 + 3f,
                 weightBarWidth,
                 controlHelpHeight - 6f
         )
         // encumbrance bar
-        blendNormal(batch)
-        batch.color = if (isEncumbered) Color(0xff0000_cc.toInt()) else Color(0x00ff00_cc.toInt())
+        batch.color = encumbCol
         batch.fillRect(
-                xEnd - 3 - weightBarWidth + inventoryScrOffX,
+                xEnd - weightBarWidth + inventoryScrOffX,
                 yEnd-20 + 3f,
                 if (actor.inventory.capacityMode == CAPACITY_MODE_NO_ENCUMBER)
                     1f
                 else // make sure 1px is always be seen
                     minOf(weightBarWidth, maxOf(1f, weightBarWidth * encumbrancePerc)),
-                controlHelpHeight - 5f
+                controlHelpHeight - 6f
         )
+        // debug text
+        batch.color = Color.LIGHT_GRAY
+        if (IS_DEVELOPMENT_BUILD) {
+            AppLoader.fontSmallNumbers.draw(batch,
+                    "${actor.inventory.capacity}/${actor.inventory.maxCapacity}",
+                    xEnd - 6 - Terrarum.fontGame.getWidth(encumbranceText) - weightBarWidth + inventoryScrOffX,
+                    yEnd-20 + 3f + controlHelpHeight - 4f
+            )
+        }
     }
 
 

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

@@ -1,10 +1,14 @@
 package net.torvald.terrarum.modulebasegame.ui
 
+import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.graphics.Camera
+import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.g2d.TextureRegion
+import net.torvald.terrarum.GdxColorMap
 import net.torvald.terrarum.itemproperties.GameItem
 import net.torvald.terrarum.ui.UIItem
+import kotlin.math.roundToInt
 
 /**
  * Cross section of two inventory cell types
@@ -23,4 +27,24 @@ abstract class UIItemInventoryCellBase(
 ) : UIItem(parentUI) {
     abstract override fun update(delta: Float)
     abstract override fun render(batch: SpriteBatch, camera: Camera)
+}
+
+object UIItemInventoryCellCommonRes {
+    val meterColourMap = GdxColorMap(Gdx.files.internal("./assets/clut/health_bar_colouring_4096.tga"))
+    val meterBackDarkening = Color(0x828282ff.toInt())
+
+    fun getHealthMeterColour(value: Float, start: Float, end: Float): Color {
+        if (start > end) throw IllegalArgumentException("Start value is greater than end value: $start..$end")
+
+        return if (value <= start)
+            meterColourMap[0]
+        else if (value >= end)
+            meterColourMap[meterColourMap.width - 1]
+        else {
+            val scale = (value - start) / (end - start)
+            meterColourMap[scale.times(meterColourMap.width - 1).roundToInt()]
+        }
+    }
+
+    fun getHealthMeterColour(value: Int, start: Int, end: Int) = getHealthMeterColour(value.toFloat(), start.toFloat(), end.toFloat())
 }