feat(legacy): "Frost" Background color mode to TargetHUD (CCBlueX#5343)

mems01 · Jan 17, 2025 · fac7760 · fac7760
1 parent 5560611
commit fac7760
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Showing 3 changed files with 102 additions and 9 deletions.
diff --git a/src/main/java/net/ccbluex/liquidbounce/ui/client/hud/element/elements/Target.kt b/src/main/java/net/ccbluex/liquidbounce/ui/client/hud/element/elements/Target.kt
@@ -23,6 +23,7 @@ import net.ccbluex.liquidbounce.utils.render.RenderUtils.drawScaledCustomSizeMod
 import net.ccbluex.liquidbounce.utils.render.animation.AnimationUtil
 import net.ccbluex.liquidbounce.utils.render.animation.AnimationUtil.debugFPS
 import net.ccbluex.liquidbounce.utils.render.shader.shaders.RainbowShader
+import net.ccbluex.liquidbounce.utils.render.shader.shaders.FrostShader
 import net.minecraft.client.gui.GuiChat
 import net.minecraft.entity.EntityLivingBase
 import net.minecraft.util.ResourceLocation
@@ -47,8 +48,9 @@ class Target : Element() {
 
     private val borderStrength by float("Border-Strength", 3F, 1F..5F)
 
-    private val backgroundMode by choices("Background-ColorMode", arrayOf("Custom", "Rainbow"), "Custom")
+    private val backgroundMode by choices("Background-ColorMode", arrayOf("Custom", "Rainbow", "Frost"), "Custom")
     private val backgroundColor by color("Background-Color", Color.BLACK.withAlpha(150)) { backgroundMode == "Custom" }
+    private val frostIntensity by float("Frost-Intensity", 0.3F, 0.1F..1F) { backgroundMode == "Frost" }
 
     private val borderMode by choices("Border-ColorMode", arrayOf("Custom", "Rainbow"), "Custom")
     private val borderColor by color("Border-Color", Color.BLACK) { borderMode == "Custom" }
@@ -201,14 +203,27 @@ class Target : Element() {
                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
 
                 if (fadeMode && shouldRender || smoothMode && shouldRender || delayCounter < vanishDelay) {
-                    // Draw rect box
-                    RainbowShader.begin(backgroundMode == "Rainbow", rainbowX, rainbowY, rainbowOffset).use {
-                        drawRoundedBorderRect(
-                            0F, 0F, width, height, borderStrength,
-                            if (backgroundMode == "Rainbow") 0 else backgroundCustomColor,
-                            borderCustomColor,
-                            roundedRectRadius
-                        )
+                    when (backgroundMode) {
+                        "Frost" -> {
+                            FrostShader.begin(true, frostIntensity).use {
+                                drawRoundedBorderRect(
+                                    0F, 0F, width, height, borderStrength,
+                                    0,
+                                    borderCustomColor,
+                                    roundedRectRadius
+                                )
+                            }
+                        }
+                        else -> {
+                            RainbowShader.begin(backgroundMode == "Rainbow", rainbowX, rainbowY, rainbowOffset).use {
+                                drawRoundedBorderRect(
+                                    0F, 0F, width, height, borderStrength,
+                                    if (backgroundMode == "Rainbow") 0 else backgroundCustomColor,
+                                    borderCustomColor,
+                                    roundedRectRadius
+                                )
+                            }
+                        }
                     }
 
                     // Health bar

diff --git a/src/main/java/net/ccbluex/liquidbounce/utils/render/shader/shaders/FrostShader.kt b/src/main/java/net/ccbluex/liquidbounce/utils/render/shader/shaders/FrostShader.kt
@@ -0,0 +1,52 @@
+package net.ccbluex.liquidbounce.utils.render.shader.shaders
+
+import net.ccbluex.liquidbounce.utils.render.shader.FramebufferShader
+import org.lwjgl.opengl.GL20.*
+import java.io.Closeable
+
+object FrostShader : FramebufferShader("frost.frag"), Closeable {
+    var isInUse = false
+        private set
+
+    var intensity = 0.3f
+
+    override fun setupUniforms() {
+        setupUniform("texture")
+        setupUniform("texelSize")
+        setupUniform("radius")
+        setupUniform("alpha")
+        setupUniform("intensity")
+    }
+
+    override fun updateUniforms() {
+        glUniform1i(getUniform("texture"), 0)
+        glUniform2f(getUniform("texelSize"), 
+            1f / mc.displayWidth * renderScale,
+            1f / mc.displayHeight * renderScale
+        )
+        glUniform1f(getUniform("radius"), 2f)
+        glUniform1f(getUniform("alpha"), 0.6f)
+        glUniform1f(getUniform("intensity"), intensity)
+    }
+
+    override fun startShader() {
+        super.startShader()
+        isInUse = true
+    }
+
+    override fun stopShader() {
+        super.stopShader()
+        isInUse = false
+    }
+
+    override fun close() {
+        if (isInUse)
+            stopShader()
+    }
+
+    fun begin(enable: Boolean, intensity: Float = 0.3f) = apply {
+        if (!enable) return@apply
+        this.intensity = intensity
+        startShader()
+    }
+} 
diff --git a/src/main/resources/assets/minecraft/liquidbounce/shader/fragment/frost.frag b/src/main/resources/assets/minecraft/liquidbounce/shader/fragment/frost.frag
@@ -0,0 +1,26 @@
+#version 120
+
+uniform sampler2D texture;
+uniform vec2 texelSize;
+uniform float radius;
+uniform float alpha;
+uniform float intensity;
+
+void main() {
+    vec4 color = vec4(0.0);
+    float count = 0.0;
+
+    // Sample pixels in a radius for the blur effect
+    for(float x = -radius; x <= radius; x++) {
+        for(float y = -radius; y <= radius; y++) {
+            vec2 offset = vec2(x, y) * texelSize;
+            color += texture2D(texture, gl_TexCoord[0].xy + offset);
+            count += 1.0;
+        }
+    }
+
+    // Average the sampled colors and add white tint based on intensity
+    color = color / count;
+    color = mix(color, vec4(1.0), intensity);
+    gl_FragColor = vec4(color.rgb, color.a * alpha);
+}