path: root/src/main/java/at/hannibal2/skyhanni/utils/RenderUtils.kt

package at.hannibal2.skyhanni.utils

import at.hannibal2.skyhanni.config.core.config.Position
import at.hannibal2.skyhanni.data.GuiEditManager
import at.hannibal2.skyhanni.data.GuiEditManager.Companion.getAbsX
import at.hannibal2.skyhanni.data.GuiEditManager.Companion.getAbsY
import at.hannibal2.skyhanni.utils.renderables.Renderable
import io.github.moulberry.moulconfig.internal.TextRenderUtils
import net.minecraft.client.Minecraft
import net.minecraft.client.gui.FontRenderer
import net.minecraft.client.gui.Gui
import net.minecraft.client.renderer.GlStateManager
import net.minecraft.client.renderer.Tessellator
import net.minecraft.client.renderer.vertex.DefaultVertexFormats
import net.minecraft.entity.Entity
import net.minecraft.inventory.Slot
import net.minecraft.util.AxisAlignedBB
import net.minecraft.util.MathHelper
import net.minecraft.util.ResourceLocation
import net.minecraftforge.client.event.RenderWorldLastEvent
import org.lwjgl.opengl.GL11
import java.awt.Color
import kotlin.math.cos
import kotlin.math.sin
import kotlin.math.sqrt
import kotlin.time.Duration
import kotlin.time.DurationUnit

object RenderUtils {

    val beaconBeam = ResourceLocation("textures/entity/beacon_beam.png")

    infix fun Slot.highlight(color: LorenzColor) {
        highlight(color.toColor())
    }

    infix fun Slot.highlight(color: Color) {
        val lightingState = GL11.glIsEnabled(GL11.GL_LIGHTING)

        GlStateManager.disableLighting()
        GlStateManager.color(1f, 1f, 1f, 1f)

        GlStateManager.pushMatrix()
        // TODO don't use z
        GlStateManager.translate(0f, 0f, 110 + Minecraft.getMinecraft().renderItem.zLevel)
        Gui.drawRect(
            this.xDisplayPosition,
            this.yDisplayPosition,
            this.xDisplayPosition + 16,
            this.yDisplayPosition + 16,
            color.rgb
        )
        GlStateManager.popMatrix()

        if (lightingState) GlStateManager.enableLighting()
    }

    fun RenderWorldLastEvent.drawColor(
        location: LorenzVec,
        color: LorenzColor,
        beacon: Boolean = false,
        alpha: Float = -1f,
    ) {
        val (viewerX, viewerY, viewerZ) = getViewerPos(partialTicks)
        val x = location.x - viewerX
        val y = location.y - viewerY
        val z = location.z - viewerZ
        val distSq = x * x + y * y + z * z
        val realAlpha = if (alpha == -1f) {
            (0.1f + 0.005f * distSq.toFloat()).coerceAtLeast(0.2f)
        } else {
            alpha
        }
        GlStateManager.disableDepth()
        GlStateManager.disableCull()
        drawFilledBoundingBox(
            AxisAlignedBB(x, y, z, x + 1, y + 1, z + 1).expandBlock(),
            color.toColor(),
            realAlpha
        )
        GlStateManager.disableTexture2D()
        if (distSq > 5 * 5 && beacon) renderBeaconBeam(x, y + 1, z, color.toColor().rgb, 1.0f, partialTicks)
        GlStateManager.disableLighting()
        GlStateManager.enableTexture2D()
        GlStateManager.enableDepth()
        GlStateManager.enableCull()
    }


    fun getViewerPos(partialTicks: Float) = exactLocation(Minecraft.getMinecraft().renderViewEntity, partialTicks)

    /**
     * Taken from NotEnoughUpdates under Creative Commons Attribution-NonCommercial 3.0
     * https://github.com/Moulberry/NotEnoughUpdates/blob/master/LICENSE
     * @author Moulberry
     * @author Mojang
     */
    fun drawFilledBoundingBox(
        aabb: AxisAlignedBB,
        c: Color,
        alphaMultiplier: Float = 1f,
        /**
         * If set to `true`, renders the box relative to the camera instead of relative to the world.
         * If set to `false`, will be relativized to [RenderUtils.getViewerPos]. Setting this to `false` requires
         * specifying [partialTicks]]
         */
        renderRelativeToCamera: Boolean = true,
        drawVerticalBarriers: Boolean = true,
        partialTicks: Float = 0F,
    ) {
        GlStateManager.enableBlend()
        GlStateManager.disableLighting()
        GlStateManager.tryBlendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, 1, 0)
        GlStateManager.disableTexture2D()
        GlStateManager.disableCull()
        val effectiveAABB = if (!renderRelativeToCamera) {
            val vp = getViewerPos(partialTicks)
            AxisAlignedBB(
                aabb.minX - vp.x, aabb.minY - vp.y, aabb.minZ - vp.z,
                aabb.maxX - vp.x, aabb.maxY - vp.y, aabb.maxZ - vp.z,
            )
        } else {
            aabb
        }
        val tessellator = Tessellator.getInstance()
        val worldRenderer = tessellator.worldRenderer

        //vertical
        if (drawVerticalBarriers) {
            GlStateManager.color(c.red / 255f, c.green / 255f, c.blue / 255f, c.alpha / 255f * alphaMultiplier)
            worldRenderer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION)
            with(effectiveAABB)