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package moe.nea.firmament.util.render
import net.minecraft.client.gui.navigation.ScreenRectangle
import net.minecraft.client.gui.render.pip.PictureInPictureRenderer
import net.minecraft.client.gui.render.state.GuiRenderState
import net.minecraft.client.gui.render.state.pip.PictureInPictureRenderState
import net.minecraft.client.renderer.MultiBufferSource
abstract class MultiSpecialGuiRenderState : PictureInPictureRenderState {
// I wish i had manifolds @Self type here... Maybe i should switch to java after all :(
abstract fun createRenderer(vertexConsumers: MultiBufferSource.BufferSource): MultiSpecialGuiRenderer<out MultiSpecialGuiRenderState>
abstract val x1: Int
abstract val x2: Int
abstract val y1: Int
abstract val y2: Int
abstract val scale: Float
abstract val bounds: ScreenRectangle?
abstract val scissorArea: ScreenRectangle?
override fun x0(): Int = x1
override fun x1(): Int = x2
override fun y0(): Int = y1
override fun y1(): Int = y2
override fun scale(): Float = scale
override fun scissorArea(): ScreenRectangle? = scissorArea
override fun bounds(): ScreenRectangle? = bounds
}
abstract class MultiSpecialGuiRenderer<T : MultiSpecialGuiRenderState>(
vertexConsumers: MultiBufferSource.BufferSource
) : PictureInPictureRenderer<T>(vertexConsumers) {
var wasUsedThisFrame = false
fun consumeRender(): Boolean {
return wasUsedThisFrame.also { wasUsedThisFrame = false }
}
override fun blitTexture(element: T, state: GuiRenderState) {
wasUsedThisFrame = true
super.blitTexture(element, state)
}
}
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