pressure plates

assets/mods/basegame/crafting/items.json

@@ -15,6 +15,10 @@
     "workbench": "",
     "ingredients": [[2, 1, "item@basegame:112", 1, "$ROCK", 1, "item@basegame:113"]] /* 1 copper ingot, 1 rock, 1 iron */
   },
+  "item@basegame:58": { /* signal pressure plate */
+    "workbench": "",
+    "ingredients": [[1, 1, "item@basegame:112", 1, "$ROCK", 1, "item@basegame:113"]] /* 1 copper ingot, 1 rock, 1 iron */
+  },
   "item@basegame:1048576": { /* wooden bucket */
     "workbench": "basiccrafting",
     "ingredients": [[1, 3, "$WOOD"]] /* 3 planks */

assets/mods/basegame/items/itemid.csv

@@ -56,6 +56,7 @@ id;classname;tags
 55;net.torvald.terrarum.modulebasegame.gameitems.ItemGlowOrb;LIGHT,THROWABLE
 56;net.torvald.terrarum.modulebasegame.gameitems.ItemClayBrick;
 57;net.torvald.terrarum.modulebasegame.gameitems.ItemLogicSignalPushbutton;FIXTURE,SIGNAL
+58;net.torvald.terrarum.modulebasegame.gameitems.ItemLogicSignalPressurePlate;FIXTURE,SIGNAL
 
 
 

assets/mods/basegame/locales/en/items.json

@@ -50,6 +50,8 @@
   "ITEM_LOGIC_SIGNAL_EMITTER": "Logic Signal Emitter",
   "ITEM_LOGIC_SIGNAL_LATCH": "Logic Signal Latch",
   "ITEM_LOGIC_SIGNAL_NUMERIC_DISPLAY": "Logic Signal Numeric Display",
+  "ITEM_LOGIC_SIGNAL_PRESSURE_PLATE": "Logic Signal Pressure Plate",
+  "ITEM_LOGIC_SIGNAL_PUSHBUTTON": "Logic Signal Push-Button",
   "ITEM_LOGIC_SIGNAL_REPEATER": "Logic Signal Repeater",
   "ITEM_LOGIC_SIGNAL_SWITCH": "Logic Signal Switch",
   "ITEM_LOGS_BIRCH": "Birch Logs",

src/net/torvald/terrarum/modulebasegame/gameactors/FixtureLogicSignalSwitchManual.kt

@@ -2,6 +2,7 @@ package net.torvald.terrarum.modulebasegame.gameactors
 
 import net.torvald.spriteanimation.SheetSpriteAnimation
 import net.torvald.terrarum.INGAME
+import net.torvald.terrarum.Point2d
 import net.torvald.terrarum.TerrarumAppConfiguration
 import net.torvald.terrarum.gameactors.AVKey
 import net.torvald.terrarum.langpack.Lang
@@ -131,3 +132,81 @@ class FixtureLogicSignalPushbutton : Electric {
         triggeredTime = INGAME.world.worldTime.TIME_T
     }
 }
+
+class FixtureLogicSignalPressurePlate : Electric {
+
+    @Transient override val spawnNeedsFloor = true
+    @Transient override val spawnNeedsWall = false
+
+    constructor() : super(
+        BlockBox(BlockBox.NO_COLLISION, 2, 1),
+        nameFun = { Lang["ITEM_LOGIC_SIGNAL_PRESSURE_PLATE"] }
+    )
+
+    @Transient open val minMass = 2.0 // different types of switches can have different minimal mass?
+    @Transient open val holdTime = 30 // ticks
+
+
+    private var triggeredTime: Long? = null // null = off; number: TIME_T that the button was held down
+
+    private val state: Int
+        get() = (triggeredTime != null).toInt()
+
+    init {
+        val itemImage = FixtureItemBase.getItemImageFromSingleImage("basegame", "sprites/fixtures/signal_pressure_plate.tga")
+        val itemImage2 = FixtureItemBase.getItemImageFromSingleImage("basegame", "sprites/fixtures/signal_pressure_plate_emsv.tga")
+
+        density = 1400.0
+        setHitboxDimension(2*TerrarumAppConfiguration.TILE_SIZE, TerrarumAppConfiguration.TILE_SIZE, 0, 1)
+
+        makeNewSprite(TextureRegionPack(itemImage.texture, 2*TerrarumAppConfiguration.TILE_SIZE, TerrarumAppConfiguration.TILE_SIZE)).let {
+            it.setRowsAndFrames(2,1)
+            it.delays = floatArrayOf(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY)
+        }
+        makeNewSpriteEmissive(TextureRegionPack(itemImage2.texture, 2*TerrarumAppConfiguration.TILE_SIZE, TerrarumAppConfiguration.TILE_SIZE)).let {
+            it.setRowsAndFrames(2,1)
+            it.delays = floatArrayOf(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY)
+        }
+
+        actorValue[AVKey.BASEMASS] = FixtureLogicSignalEmitter.MASS
+
+
+        setWireEmitterAt(0, 0, "digital_bit")
+        // right side of the plate can be used to route signal wire
+    }
+
+    private fun updateState() {
+        val pointStart = Point2d(hitbox.startX + 5, hitbox.endY - 6)
+        val pointEnd = Point2d(hitbox.startX + 5 + 22, hitbox.endY)
+
+        val massSum = INGAME.getActorsAt(pointStart, pointEnd).filter {
+            it.physProp.usePhysics
+        }.sumOf { it.mass }
+
+        if (massSum >= minMass)
+            triggeredTime = INGAME.world.worldTime.TIME_T
+
+    }
+
+    override fun updateSignal() {
+        // detect and measure weight of actors
+        updateState()
+
+        // decide when to un-trigger
+        if (INGAME.world.worldTime.TIME_T - (triggeredTime ?: 0L) >= holdTime) {
+            triggeredTime = null
+        }
+
+        (sprite as SheetSpriteAnimation).currentRow = state
+        (spriteEmissive as SheetSpriteAnimation).currentRow = state
+        setWireEmissionAt(0, 0, Vector2(state.toDouble(), 0.0))
+    }
+
+    override fun reload() {
+        super.reload()
+
+        (sprite as SheetSpriteAnimation).currentRow = state
+        (spriteEmissive as SheetSpriteAnimation).currentRow = state
+        setWireEmissionAt(0, 0, Vector2(state.toDouble(), 0.0))
+    }
+}

src/net/torvald/terrarum/modulebasegame/gameitems/ItemLogicSignalSwitchManual.kt

@@ -62,3 +62,28 @@ class ItemLogicSignalPushbutton(originalID: ItemID) : FixtureItemBase(originalID
     }
 
 }
+
+class ItemLogicSignalPressurePlate(originalID: ItemID) : FixtureItemBase(originalID, "net.torvald.terrarum.modulebasegame.gameactors.FixtureLogicSignalPressurePlate") {
+
+    override var dynamicID: ItemID = originalID
+    override var baseMass = FixtureLogicSignalEmitter.MASS
+    override val canBeDynamic = false
+    override val materialId = ""
+    init {
+        itemImage = CommonResourcePool.getAsItemSheet("basegame.items").get(9, 2)
+    }
+
+    override var baseToolSize: Double? = baseMass
+    override var originalName = "ITEM_LOGIC_SIGNAL_PRESSURE_PLATE"
+
+    override fun effectWhileEquipped(actor: ActorWithBody, delta: Float) {
+        super.effectWhileEquipped(actor, delta)
+        (Terrarum.ingame!! as TerrarumIngame).selectedWireRenderClass = "signal"
+    }
+
+    override fun effectOnUnequip(actor: ActorWithBody) {
+        super.effectOnUnequip(actor)
+        (Terrarum.ingame!! as TerrarumIngame).selectedWireRenderClass = ""
+    }
+
+}