core/src/ru/deadsoftware/cavedroid/game/objects/Drop.kt

   1 package ru.deadsoftware.cavedroid.game.objects
   2
   3 import com.badlogic.gdx.math.Intersector
   4 import com.badlogic.gdx.math.Rectangle
   5 import com.badlogic.gdx.math.Vector2
   6 import ru.deadsoftware.cavedroid.game.model.item.Item
   7
   8 class Drop(
   9     x: Float,
  10     y: Float,
  11     val item: Item,
  12 ) : Rectangle(x, y, DROP_SIZE, DROP_SIZE) {
  13
  14     val velocity = getInitialVelocity()
  15     var pickedUp = false
  16
  17     fun canMagnetTo(rectangle: Rectangle): Boolean {
  18         val magnetArea = getMagnetArea()
  19         return Intersector.overlaps(magnetArea, rectangle)
  20     }
  21
  22     private fun getMagnetArea(): Rectangle {
  23         return Rectangle(
  24             /* x = */ x - MAGNET_DISTANCE,
  25             /* y = */ y - MAGNET_DISTANCE,
  26             /* width = */ width + MAGNET_DISTANCE * 2,
  27             /* height = */ height + MAGNET_DISTANCE * 2,
  28         )
  29     }
  30
  31     companion object {
  32         private const val MAGNET_DISTANCE = 16f
  33
  34         const val MAGNET_VELOCITY = 128f
  35         const val DROP_SIZE = 8f
  36
  37         private fun getInitialVelocity(): Vector2 = Vector2(0f, -1f)
  38     }
  39 }