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package moe.nea.firmament.util.render
import com.mojang.blaze3d.platform.GlConst
import com.mojang.blaze3d.systems.RenderSystem
import me.shedaniel.math.Color
import net.minecraft.client.render.OverlayTexture
import net.minecraft.util.math.ColorHelper
import moe.nea.firmament.util.ErrorUtil
class TintedOverlayTexture : OverlayTexture() {
companion object {
val size = 16
}
private var lastColor: Color? = null
fun setColor(color: Color): TintedOverlayTexture {
val image = ErrorUtil.notNullOr(texture.image, "Disposed TintedOverlayTexture written to") { return this }
if (color == lastColor) return this
lastColor = color
for (i in 0..<size) {
for (j in 0..<size) {
if (i < 8) {
image.setColorArgb(j, i, 0xB2FF0000.toInt())
} else {
val k = ((1F - j / 15F * 0.75F) * 255F).toInt()
image.setColorArgb(j, i, ColorHelper.withAlpha(k, color.color))
}
}
}
RenderSystem.activeTexture(GlConst.GL_TEXTURE1)
texture.bindTexture()
texture.setFilter(false, false)
texture.setClamp(true)
image.upload(0,
0, 0,
0, 0,
image.width, image.height,
false)
RenderSystem.activeTexture(GlConst.GL_TEXTURE0)
return this
}
}
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