core/src/ru/deadsoftware/cavedroid/misc/utils/RenderingUtils.kt

   1 package ru.deadsoftware.cavedroid.misc.utils
   2
   3 import com.badlogic.gdx.graphics.Color
   4 import com.badlogic.gdx.graphics.g2d.GlyphLayout
   5 import com.badlogic.gdx.graphics.g2d.SpriteBatch
   6 import com.badlogic.gdx.math.Rectangle
   7 import ru.deadsoftware.cavedroid.misc.Assets
   8
   9 private fun Rectangle.shifted(shift: Float) = Rectangle(x + shift, y, width, height)
  10
  11 private fun Rectangle.getLazyShifts(worldWidthPx: Float)
  12     = Triple(
  13         first = lazy { shifted(0f) },
  14         second = lazy { shifted(-worldWidthPx) },
  15         third = lazy { shifted(worldWidthPx) }
  16     )
  17
  18 fun Rectangle.cycledInsideWorld(
  19     viewport: Rectangle,
  20     worldWidthPx: Float,
  21 ): Rectangle? {
  22     val (notShifted, shiftedLeft, shiftedRight) = getLazyShifts(worldWidthPx)
  23
  24     return when {
  25         viewport.overlaps(notShifted.value) -> notShifted.value
  26         viewport.overlaps(shiftedLeft.value) -> shiftedLeft.value
  27         viewport.overlaps(shiftedRight.value) -> shiftedRight.value
  28         else -> null
  29     }
  30 }
  31
  32 fun forEachBlockInArea(
  33     area: Rectangle,
  34     func: (x: Int, y: Int) -> Unit,
  35 ) {
  36     val startMapX = area.x.bl
  37     val endMapX = (area.x + area.width - 1f).bl
  38     val startMapY = area.y.bl
  39     val endMapY = (area.y + area.height - 1f).bl
  40
  41     for (x in startMapX..endMapX) {
  42         for (y in startMapY..endMapY) {
  43             func(x, y)
  44         }
  45     }
  46 }
  47
  48 @JvmOverloads
  49 fun SpriteBatch.drawString(str: String, x: Float, y: Float, color: Color = Color.WHITE): GlyphLayout {
  50     Assets.minecraftFont.color = color
  51     return Assets.minecraftFont.draw(this, str, x, y)
  52 }