Files
BetterFoliage/src/main/kotlin/mods/betterfoliage/render/ShadersModIntegration.kt
2021-05-07 19:11:11 +02:00

54 lines
2.6 KiB
Kotlin

package mods.betterfoliage.render
import mods.betterfoliage.BetterFoliage
import mods.betterfoliage.render.lighting.getBufferBuilder
import mods.betterfoliage.util.getAllMethods
import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
import net.minecraft.block.BlockState
import net.minecraft.block.Blocks
import net.minecraft.client.render.BufferBuilder
import net.minecraft.client.render.RenderLayer
/**
* Integration for ShadersMod.
*/
object ShadersModIntegration {
val BufferBuilder_SVertexBuilder = BufferBuilder::class.java.fields.find { it.name == "sVertexBuilder" }
val SVertexBuilder_pushState = getAllMethods("net.optifine.shaders.SVertexBuilder", "pushEntity").find { it.parameterCount == 1 }
val SVertexBuilder_popState = getAllMethods("net.optifine.shaders.SVertexBuilder", "popEntity").find { it.parameterCount == 0 }
val BlockAliases_getAliasBlockId = getAllMethods("net.optifine.shaders.BlockAliases", "getAliasBlockId").firstOrNull()
@JvmStatic val isAvailable =
listOf(BufferBuilder_SVertexBuilder).all { it != null } &&
listOf(SVertexBuilder_pushState, SVertexBuilder_popState, BlockAliases_getAliasBlockId).all { it != null }
val defaultLeaves = Blocks.OAK_LEAVES.defaultState
val defaultGrass = Blocks.TALL_GRASS.defaultState
init {
BetterFoliage.logger.info("[BetterFoliage] ShadersMod integration is ${if (isAvailable) "enabled" else "disabled" }")
}
/** Quads rendered inside this block will use the given block entity data in shader programs. */
inline fun renderAs(ctx: RenderContext, state: BlockState, layer: RenderLayer, enabled: Boolean = true, func: ()->Unit) {
if (isAvailable && enabled) {
val sVertexBuilder = BufferBuilder_SVertexBuilder!!.get(ctx.getBufferBuilder(layer))
val aliasBlockId = BlockAliases_getAliasBlockId!!.invoke(null, state)
SVertexBuilder_pushState!!.invoke(sVertexBuilder, aliasBlockId)
func()
SVertexBuilder_popState!!.invoke(sVertexBuilder)
} else {
func()
}
}
/** Quads rendered inside this block will behave as tallgrass blocks in shader programs. */
inline fun grass(ctx: RenderContext, enabled: Boolean = true, func: ()->Unit) =
renderAs(ctx, defaultGrass, RenderLayer.getCutoutMipped(), enabled, func)
/** Quads rendered inside this block will behave as leaf blocks in shader programs. */
inline fun leaves(ctx: RenderContext, enabled: Boolean = true, func: ()->Unit) =
renderAs(ctx, defaultLeaves, RenderLayer.getCutoutMipped(), enabled, func)
}