core/src/ru/deadsoftware/cavedroid/game/render/BlocksRenderer.kt

   1 package ru.deadsoftware.cavedroid.game.render
   2
   3 import com.badlogic.gdx.graphics.g2d.Sprite
   4 import com.badlogic.gdx.graphics.g2d.SpriteBatch
   5 import com.badlogic.gdx.graphics.g2d.TextureRegion
   6 import com.badlogic.gdx.graphics.glutils.ShapeRenderer
   7 import com.badlogic.gdx.math.MathUtils
   8 import com.badlogic.gdx.math.Rectangle
   9 import ru.deadsoftware.cavedroid.game.mobs.MobsController
  10 import ru.deadsoftware.cavedroid.game.model.block.Block
  11 import ru.deadsoftware.cavedroid.game.world.GameWorld
  12 import ru.deadsoftware.cavedroid.misc.Assets
  13 import ru.deadsoftware.cavedroid.misc.utils.px
  14
  15 abstract class BlocksRenderer(
  16     protected val gameWorld: GameWorld,
  17     protected val mobsController: MobsController,
  18 ) : IGameRenderer {
  19
  20     protected abstract val background: Boolean
  21
  22     private val Block.canSeeThrough
  23         get() = isNone() || params.isTransparent
  24
  25     private fun blockDamageSprite(index: Int): Sprite? {
  26         if (index !in 0..< MAX_BLOCK_DAMAGE_INDEX) {
  27             return null
  28         }
  29         return Assets.blockDamageSprites[index]
  30     }
  31
  32     protected fun drawBlockDamage(spriteBatch: SpriteBatch, viewport: Rectangle) {
  33         val player = mobsController.player
  34         val blockDamage = player.blockDamage.takeIf { it > 0f } ?: return
  35         val cursorX = player.cursorX
  36         val cursorY = player.cursorY
  37
  38         val block = if (background) {
  39             gameWorld.getBackMap(cursorX, cursorY)
  40         } else {
  41             gameWorld.getForeMap(cursorX, cursorY)
  42         }
  43
  44         val index = (MAX_BLOCK_DAMAGE_INDEX.toFloat() * (blockDamage.toFloat() / block.params.hitPoints.toFloat()))
  45             .let(MathUtils::floor)
  46         val sprite = blockDamageSprite(index) ?: return
  47
  48         if (gameWorld.hasForeAt(cursorX, cursorY) != background) {
  49             sprite.setBounds(
  50                 /* x = */ cursorX.px - viewport.x + block.params.spriteMargins.left,
  51                 /* y = */ cursorY.px - viewport.y + block.params.spriteMargins.top,
  52                 /* width = */ block.spriteWidth,
  53                 /* height = */ block.spriteHeight
  54             )
  55             sprite.draw(spriteBatch)
  56         }
  57     }
  58
  59     protected fun shadeBackMap(
  60         shapeRenderer: ShapeRenderer,
  61         viewport: Rectangle,
  62         x: Int,
  63         y: Int
  64     ) {
  65         val foregroundBlock = gameWorld.getForeMap(x, y)
  66         val backgroundBlock = gameWorld.getBackMap(x, y)
  67
  68         if (foregroundBlock.canSeeThrough && !backgroundBlock.isNone()) {
  69             val drawX = x.px - viewport.x
  70             val drawY = y.px - viewport.y
  71             val marginLeft = backgroundBlock.params.spriteMargins.left
  72             val marginTop = backgroundBlock.params.spriteMargins.top
  73
  74             shapeRenderer.rect(
  75                 /* x = */ drawX + marginLeft,
  76                 /* y = */ drawY + marginTop,
  77                 /* width = */ backgroundBlock.width,
  78                 /* height = */ backgroundBlock.height
  79             )
  80         }
  81     }
  82
  83     protected fun drawBackMap(spriteBatch: SpriteBatch, viewport: Rectangle, x: Int, y: Int) {
  84         val foregroundBlock = gameWorld.getForeMap(x, y)
  85         val backgroundBlock = gameWorld.getBackMap(x, y)
  86
  87         if (foregroundBlock.canSeeThrough && !backgroundBlock.isNone()) {
  88             val drawX = x.px - viewport.x
  89             val drawY = y.px - viewport.y
  90             backgroundBlock.draw(spriteBatch, drawX, drawY)
  91         }
  92     }
  93
  94     protected fun drawForeMap(spriteBatch: SpriteBatch, viewport: Rectangle, x: Int, y: Int) {
  95         val foregroundBlock = gameWorld.getForeMap(x, y)
  96
  97         if (!foregroundBlock.isNone() && foregroundBlock.params.isBackground == background) {
  98             val drawX = x.px - viewport.x
  99             val drawY = y.px - viewport.y
 100             foregroundBlock.draw(spriteBatch, drawX, drawY)
 101         }
 102     }
 103
 104     companion object {
 105         private const val MAX_BLOCK_DAMAGE_INDEX = 10
 106     }
 107
 108 }