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 import java.awt.Color as JavaColor
   9
  10 private fun Rectangle.shifted(shift: Float) = Rectangle(x + shift, y, width, height)
  11
  12 private fun Rectangle.getLazyShifts(worldWidthPx: Float)
  13     = Triple(
  14         first = lazy { shifted(0f) },
  15         second = lazy { shifted(-worldWidthPx) },
  16         third = lazy { shifted(worldWidthPx) }
  17     )
  18
  19 fun Rectangle.cycledInsideWorld(
  20     viewport: Rectangle,
  21     worldWidthPx: Float,
  22 ): Rectangle? {
  23     val (notShifted, shiftedLeft, shiftedRight) = getLazyShifts(worldWidthPx)
  24
  25     return when {
  26         viewport.overlaps(notShifted.value) -> notShifted.value
  27         viewport.overlaps(shiftedLeft.value) -> shiftedLeft.value
  28         viewport.overlaps(shiftedRight.value) -> shiftedRight.value
  29         else -> null
  30     }
  31 }
  32
  33 fun forEachBlockInArea(
  34     area: Rectangle,
  35     func: (x: Int, y: Int) -> Unit,
  36 ) {
  37     val startMapX = area.x.bl
  38     val endMapX = (area.x + area.width - 1f).bl
  39     val startMapY = area.y.bl
  40     val endMapY = (area.y + area.height - 1f).bl
  41
  42     for (x in startMapX..endMapX) {
  43         for (y in startMapY..endMapY) {
  44             func(x, y)
  45         }
  46     }
  47 }
  48
  49 @JvmOverloads
  50 fun SpriteBatch.drawString(str: String, x: Float, y: Float, color: Color = Color.WHITE): GlyphLayout {
  51     Assets.minecraftFont.color = color
  52     return Assets.minecraftFont.draw(this, str, x, y)
  53 }
  54
  55 fun colorFromHexString(hex: String): Color {
  56     val rgba = (JavaColor.decode(hex).rgb shl 8) or (0xFF)
  57     return Color(rgba)
  58 }