From 638389590177807853ccc23710b43ef43047aa10 Mon Sep 17 00:00:00 2001
From: nextdayy <79922345+nextdayy@users.noreply.github.com>
Date: Mon, 2 Dec 2024 00:09:14 +0000
Subject: [PATCH] swap to GL rendering

---
 .../org/polyfrost/crosshair/CrosshairHUD.kt   | 69 +++++++++++++------
 .../polyfrost/crosshair/PolyCrosshairUI.kt    |  4 +-
 2 files changed, 50 insertions(+), 23 deletions(-)

diff --git a/src/main/kotlin/org/polyfrost/crosshair/CrosshairHUD.kt b/src/main/kotlin/org/polyfrost/crosshair/CrosshairHUD.kt
index 2785f5b..19395a1 100644
--- a/src/main/kotlin/org/polyfrost/crosshair/CrosshairHUD.kt
+++ b/src/main/kotlin/org/polyfrost/crosshair/CrosshairHUD.kt
@@ -1,17 +1,23 @@
 package org.polyfrost.crosshair
 
+import net.minecraft.client.gui.Gui
+import net.minecraft.client.renderer.texture.TextureUtil
+import org.lwjgl.opengl.GL11
 import org.polyfrost.oneconfig.api.config.v1.annotations.Include
 import org.polyfrost.oneconfig.api.config.v1.annotations.Switch
-import org.polyfrost.oneconfig.api.hud.v1.Hud
-import org.polyfrost.polyui.component.impl.Image
+import org.polyfrost.oneconfig.api.hud.v1.LegacyHud
 import org.polyfrost.polyui.unit.Vec2
+import org.polyfrost.polyui.utils.cl1
 import org.polyfrost.polyui.utils.getResourceStream
-import java.nio.file.Files
+import org.polyfrost.universal.UMatrixStack
+import org.polyfrost.universal.UResolution
 import java.nio.file.Paths
-import java.nio.file.StandardCopyOption
+import javax.imageio.ImageIO
 import kotlin.io.path.exists
+import kotlin.io.path.inputStream
+import net.minecraft.client.renderer.GlStateManager as GL
 
-object CrosshairHUD : Hud<Image>() {
+object CrosshairHUD : LegacyHud() {
     @Switch(title = "Show in F3")
     private var showInDebug = false
 
@@ -26,33 +32,52 @@ object CrosshairHUD : Hud<Image>() {
 
     @Include
     var currentCrosshair: String? = null
-        set(value) {
-            field = value
-            setCrosshair(value)
-        }
+
+    private var id = GL.generateTexture()
+    private var texSize = 15f
+
+    override var width: Float
+        get() = texSize
+        set(value) {}
+
+    override var height: Float
+        get() = texSize
+        set(value) {}
 
     private val target = Paths.get("polycrosshair.png")
 
     override fun category() = Category.COMBAT
 
     override fun initialize() {
-        setCrosshair(currentCrosshair)
+        val img = if (currentCrosshair.isNullOrEmpty() || !target.exists()) ImageIO.read(getResourceStream("assets/polycrosshair/default.png"))
+        else ImageIO.read(target.inputStream())
+        setCrosshair(img.getRGB(0, 0, img.width, img.height, null, 0, img.width), img.width)
     }
 
     override fun hasBackground() = false
 
-    override fun create() = Image(target.toUri().toString())
-
-    private fun setCrosshair(crosshair: String?) {
-        if (crosshair.isNullOrEmpty() || !Paths.get(crosshair).exists()) {
-            Files.copy(getResourceStream("assets/polycrosshair/default.png"), target, StandardCopyOption.REPLACE_EXISTING)
-        } else Files.copy(Paths.get(crosshair), target, StandardCopyOption.REPLACE_EXISTING)
-        val it = get()
-        if (!it.initialized) return
-        it.renderer.delete(it.image)
-        val size = it.polyUI.size
-        it.x = size.x / 2f - it.size.x / 2f
-        it.y = size.y / 2f - it.size.y / 2f
+    override fun render(stack: UMatrixStack, x: Float, y: Float, scaleX: Float, scaleY: Float) {
+        //val mc = Minecraft.getMinecraft()
+        //if ((mc.ingameGUI as? GuiIngameAccessor)?.shouldShowCrosshair() == false) return
+
+        GL.pushMatrix()
+        GL.enableBlend()
+        GL.enableAlpha()
+        GL.bindTexture(id)
+        GL.tryBlendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, 1, 0)
+        GL.color(1f, 1f, 1f, 1f)
+        val mcScale = UResolution.scaleFactor.toFloat()
+        GL.scale(1f / mcScale, 1f / mcScale, 1f)
+        val texSizeI = texSize.toInt()
+        val size = (texSize * cl1(scaleX, scaleY) * mcScale).toInt()
+        Gui.drawScaledCustomSizeModalRect((x / mcScale).toInt(), (y / mcScale).toInt(), 0f, 0f, texSizeI, texSizeI, size, size, texSize, texSize)
+        GL.popMatrix()
+    }
+
+
+    fun setCrosshair(cdata: IntArray, size: Int) {
+        texSize = size.toFloat()
+        TextureUtil.uploadTexture(id, cdata, size, size)
     }
 
     override fun defaultPosition() = Vec2(1920f / 2f - 7f, 1080f / 2f - 7f)
diff --git a/src/main/kotlin/org/polyfrost/crosshair/PolyCrosshairUI.kt b/src/main/kotlin/org/polyfrost/crosshair/PolyCrosshairUI.kt
index bd971e0..ba18666 100644
--- a/src/main/kotlin/org/polyfrost/crosshair/PolyCrosshairUI.kt
+++ b/src/main/kotlin/org/polyfrost/crosshair/PolyCrosshairUI.kt
@@ -67,12 +67,14 @@ private var currentCard: Group? = null
             null
         }
         val size = img?.width ?: canvasSize
-        canvasContainer[0] = genCanvas(size, colorData = img?.getRGB(0, 0, size, size, null, 0, size))
+        val cdata = img?.getRGB(0, 0, size, size, null, 0, size) ?: intArrayOf(size * size)
+        canvasContainer[0] = genCanvas(size, colorData = cdata)
         crosshairName.text = name
         canvasSize = size
         ignored = true
         canvasSizeDrawable.text = size.toString()
         CrosshairHUD.currentCrosshair = path.toUri().toString()
+        CrosshairHUD.setCrosshair(cdata, size)
         value[0].setPalette { brand.fg }
         field = value
     }