Feature: SBA Chroma but in SH (#487)

Porting SBA's chroma into SkyHanni with many more options and chroma everything. #487

20 files changed, 866 insertions, 5 deletions

diff --git a/src/main/java/at/hannibal2/skyhanni/SkyHanniMod.kt b/src/main/java/at/hannibal2/skyhanni/SkyHanniMod.kt
index edd5d62b5..4e4cbc68d 100644
--- a/src/main/java/at/hannibal2/skyhanni/SkyHanniMod.kt
+++ b/src/main/java/at/hannibal2/skyhanni/SkyHanniMod.kt
@@ -331,7 +331,7 @@ class SkyHanniMod {
         loadModule(TestExportTools)
         loadModule(ItemClickData())
 //        loadModule(Year300RaffleEvent)
-        loadModule(MinecraftData())
+        loadModule(MinecraftData)
         loadModule(TitleManager())
         loadModule(ItemTipHelper())
         loadModule(RenderLivingEntityHelper())
diff --git a/src/main/java/at/hannibal2/skyhanni/config/Features.java b/src/main/java/at/hannibal2/skyhanni/config/Features.java
index 95ffa7f6c..f5916cda8 100644
--- a/src/main/java/at/hannibal2/skyhanni/config/Features.java
+++ b/src/main/java/at/hannibal2/skyhanni/config/Features.java
@@ -4,6 +4,7 @@ import at.hannibal2.skyhanni.SkyHanniMod;
 import at.hannibal2.skyhanni.config.features.About;
 import at.hannibal2.skyhanni.config.features.BazaarConfig;
 import at.hannibal2.skyhanni.config.features.ChatConfig;
+import at.hannibal2.skyhanni.config.features.ChromaConfig;
 import at.hannibal2.skyhanni.config.features.CombatConfig;
 import at.hannibal2.skyhanni.config.features.CommandsConfig;
 import at.hannibal2.skyhanni.config.features.CrimsonIsleConfig;
@@ -68,6 +69,10 @@ public class Features extends Config {
     public GUIConfig gui = new GUIConfig();
 
     @Expose
+    @Category(name = "Chroma", desc = "Settings for Chroma text. (Credit to SBA)")
+    public ChromaConfig chroma = new ChromaConfig();
+
+    @Expose
     @Category(name = "Chat", desc = "Change how the chat looks.")
     public ChatConfig chat = new ChatConfig();
 
diff --git a/src/main/java/at/hannibal2/skyhanni/config/features/ChromaConfig.java b/src/main/java/at/hannibal2/skyhanni/config/features/ChromaConfig.java
new file mode 100644
index 000000000..80c40cd98
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/config/features/ChromaConfig.java
@@ -0,0 +1,62 @@
+package at.hannibal2.skyhanni.config.features;
+
+import at.hannibal2.skyhanni.SkyHanniMod;
+import at.hannibal2.skyhanni.config.FeatureToggle;
+import com.google.gson.annotations.Expose;
+import io.github.moulberry.moulconfig.annotations.ConfigEditorBoolean;
+import io.github.moulberry.moulconfig.annotations.ConfigEditorButton;
+import io.github.moulberry.moulconfig.annotations.ConfigEditorDropdown;
+import io.github.moulberry.moulconfig.annotations.ConfigEditorInfoText;
+import io.github.moulberry.moulconfig.annotations.ConfigEditorSlider;
+import io.github.moulberry.moulconfig.annotations.ConfigOption;
+
+public class ChromaConfig {
+
+    @Expose
+    @ConfigOption(name = "Chroma Preview", desc = "§fPlease star the mod on GitHub!")
+    @ConfigEditorInfoText(infoTitle = "Only In SkyBlock")
+    public boolean chromaPreview = false;
+
+    @Expose
+    @ConfigOption(name = "Enabled", desc = "Toggle for SkyHanni's chroma. (Disables Patcher's Optimized Font Renderer while enabled)")
+    @ConfigEditorBoolean
+    @FeatureToggle
+    public boolean enabled = false;
+
+    @Expose
+    @ConfigOption(name = "Chroma Size", desc = "Change the size of each color in the chroma.")
+    @ConfigEditorSlider(minValue = 1f, maxValue = 100f, minStep = 1f)
+    public float chromaSize = 30f;
+
+    @Expose
+    @ConfigOption(name = "Chroma Speed", desc = "Change how fast the chroma animation moves.")
+    @ConfigEditorSlider(minValue = 0.5f, maxValue = 20f, minStep = 0.5f)
+    public float chromaSpeed = 6f;
+
+    @Expose
+    @ConfigOption(name = "Chroma Saturation", desc = "Change the saturation of the chroma.")
+    @ConfigEditorSlider(minValue = 0f, maxValue = 1f, minStep = 0.01f)
+    public float chromaSaturation = 0.75f;
+
+    @Expose
+    @ConfigOption(name = "Chroma Direction", desc = "Change the slant and direction of the chroma.")
+    @ConfigEditorDropdown(values = {"Forward + Right", "Forward + Left", "Backward + Right", "Backward + Left"})
+    public int chromaDirection = 0;
+
+    @ConfigOption(name = "Reset to Default", desc = "Resets all chroma settings to the default.")
+    @ConfigEditorButton(buttonText = "Reset")
+    public Runnable resetSettings = this::resetChromaSettings;
+
+    @Expose
+    @ConfigOption(name = "Everything Chroma", desc = "Renders §4§l§oALL §r§7text in chroma. (Some enchants may appear white with SBA enchant parsing)")
+    @ConfigEditorBoolean
+    public boolean allChroma = false;
+
+    private void resetChromaSettings() {
+        SkyHanniMod.getFeature().chroma.chromaSize = 30f;
+        SkyHanniMod.getFeature().chroma.chromaSpeed = 6f;
+        SkyHanniMod.getFeature().chroma.chromaSaturation = 0.75f;
+        SkyHanniMod.getFeature().chroma.allChroma = false;
+        SkyHanniMod.getFeature().chroma.chromaDirection = 0;
+    }
+}
diff --git a/src/main/java/at/hannibal2/skyhanni/data/MinecraftData.kt b/src/main/java/at/hannibal2/skyhanni/data/MinecraftData.kt
index a09380357..da9497d08 100644
--- a/src/main/java/at/hannibal2/skyhanni/data/MinecraftData.kt
+++ b/src/main/java/at/hannibal2/skyhanni/data/MinecraftData.kt
@@ -18,7 +18,7 @@ import net.minecraftforge.event.world.WorldEvent
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
 import net.minecraftforge.fml.common.gameevent.TickEvent
 
-class MinecraftData {
+object MinecraftData {
 
     @SubscribeEvent(receiveCanceled = true)
     fun onSoundPacket(event: PacketEvent.ReceiveEvent) {
@@ -64,13 +64,13 @@ class MinecraftData {
         }
     }
 
-    private var tick = 0
+    var totalTicks = 0
 
     @SubscribeEvent
     fun onTick(event: TickEvent.ClientTickEvent) {
         Minecraft.getMinecraft().thePlayer ?: return
-        tick++
-        LorenzTickEvent(tick).postAndCatch()
+        totalTicks++
+        LorenzTickEvent(totalTicks).postAndCatch()
     }
 
     @SubscribeEvent
diff --git a/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaFontRenderer.kt b/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaFontRenderer.kt
new file mode 100644
index 000000000..981b7b33a
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaFontRenderer.kt
@@ -0,0 +1,66 @@
+package at.hannibal2.skyhanni.features.chroma
+
+import at.hannibal2.skyhanni.utils.ColorUtils
+import at.hannibal2.skyhanni.utils.shader.ShaderHelper
+import net.minecraft.client.renderer.GlStateManager
+import org.lwjgl.opengl.GL11
+
+/**
+ * Class to handle chroma font rendering
+ *
+ * Modified class from SkyblockAddons
+ *
+ * Credit: [DrawStateFontRenderer.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/utils/draw/DrawStateFontRenderer.java)
+ */
+class ChromaFontRenderer(private val baseColor: Int) {
+
+    private var chromaOn = false
+
+    fun startChroma() {
+        chromaOn = true
+    }
+
+    fun endChroma() {
+        chromaOn = false
+    }
+
+    fun loadChromaEnv() {
+        if (chromaOn) {
+            newChromaEnv()
+        }
+    }
+
+    fun restoreChromaEnv() {
+        if (ShaderHelper.areShadersSupported()) {
+            if (!chromaOn) ChromaShaderManager.end()
+        }
+    }
+
+    fun newChromaEnv() : ChromaFontRenderer {
+        if (ShaderHelper.areShadersSupported()) {
+            ChromaShaderManager.begin()
+            GlStateManager.shadeModel(GL11.GL_SMOOTH)
+        }
+        return this
+    }
+
+    fun bindActualColor() : ChromaFontRenderer {
+        GlStateManager.color(
+            ColorUtils.getRed(baseColor).toFloat() / 255f,
+            ColorUtils.getGreen(baseColor).toFloat() / 255f,
+            ColorUtils.getBlue(baseColor).toFloat() / 255f,
+            ColorUtils.getAlpha(baseColor).toFloat() / 255f
+        )
+        return this
+    }
+
+    fun endChromaEnv() : ChromaFontRenderer {
+        if (ShaderHelper.areShadersSupported()) {
+            ChromaShaderManager.end()
+            GlStateManager.shadeModel(GL11.GL_FLAT)
+        }
+        return this
+    }
+
+    fun getChromaState() = chromaOn
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaShader.kt b/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaShader.kt
new file mode 100644
index 000000000..00215b032
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaShader.kt
@@ -0,0 +1,47 @@
+package at.hannibal2.skyhanni.features.chroma
+
+import at.hannibal2.skyhanni.SkyHanniMod
+import at.hannibal2.skyhanni.data.MinecraftData
+import at.hannibal2.skyhanni.mixins.transformers.AccessorMinecraft
+import at.hannibal2.skyhanni.utils.shader.Shader
+import at.hannibal2.skyhanni.utils.shader.Uniform
+import net.minecraft.client.Minecraft
+
+/**
+ * Modified from SkyblockAddons
+ *
+ * Credit: [ChromaShader.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/shader/chroma/ChromaShader.java)
+ */
+object ChromaShader : Shader("chroma", "chroma") {
+
+    val INSTANCE: ChromaShader
+        get() = this
+
+    override fun registerUniforms() {
+        registerUniform(Uniform.UniformType.FLOAT, "chromaSize") {
+            SkyHanniMod.feature.chroma.chromaSize * (Minecraft.getMinecraft().displayWidth / 100f)
+        }
+        registerUniform(Uniform.UniformType.FLOAT, "timeOffset") {
+            var ticks = (MinecraftData.totalTicks / 2) + (Minecraft.getMinecraft() as AccessorMinecraft).timer.renderPartialTicks
+
+            ticks = when (SkyHanniMod.feature.chroma.chromaDirection) {
+                0, 2 -> ticks
+                1, 3 -> -ticks
+                else -> ticks
+            }
+
+            val chromaSpeed = SkyHanniMod.feature.chroma.chromaSpeed / 360f
+            ticks * chromaSpeed
+        }
+        registerUniform(Uniform.UniformType.FLOAT, "saturation") {
+            SkyHanniMod.feature.chroma.chromaSaturation
+        }
+        registerUniform(Uniform.UniformType.BOOL, "forwardDirection") {
+            when (SkyHanniMod.feature.chroma.chromaDirection) {
+                0, 1 -> true
+                2, 3 -> false
+                else -> true
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaShaderManager.kt b/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaShaderManager.kt
new file mode 100644
index 000000000..ccf0ec21e
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/features/chroma/ChromaShaderManager.kt
@@ -0,0 +1,38 @@
+package at.hannibal2.skyhanni.features.chroma
+
+import at.hannibal2.skyhanni.utils.shader.ShaderManager
+
+/**
+ * Object to handle enabling / disabling the chroma shader when rendering text
+ *
+ * Modified from SkyblockAddons
+ *
+ * Credit: [MulticolorShaderManager.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/core/chroma/MulticolorShaderManager.java)
+ */
+object ChromaShaderManager {
+
+    private var chromaEnabled = false
+
+    fun begin() {
+        disable()
+        enable()
+    }
+
+    fun end() {
+        disable()
+    }
+
+    private fun enable() {
+        if (!chromaEnabled) {
+            chromaEnabled = true
+            ShaderManager.enableShader("chroma")
+        }
+    }
+
+    private fun disable() {
+        if (chromaEnabled) {
+            chromaEnabled = false
+            ShaderManager.disableShader()
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/mixins/hooks/FontRendererHook.kt b/src/main/java/at/hannibal2/skyhanni/mixins/hooks/FontRendererHook.kt
new file mode 100644
index 000000000..808406946
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/mixins/hooks/FontRendererHook.kt
@@ -0,0 +1,135 @@
+package at.hannibal2.skyhanni.mixins.hooks
+
+import at.hannibal2.skyhanni.SkyHanniMod
+import at.hannibal2.skyhanni.features.chroma.ChromaFontRenderer
+import at.hannibal2.skyhanni.mixins.transformers.AccessorFontRenderer
+import at.hannibal2.skyhanni.utils.LorenzUtils
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.GlStateManager
+
+/**
+ * Object to handle chroma font states from handler methods from MixinFontRenderer
+ *
+ * Modified from SkyblockAddons
+ *
+ * Credit: [FontRendererHook.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/asm/hooks/FontRendererHook.java)
+ */
+object FontRendererHook {
+    private var CHROMA_COLOR: Int = -0x1
+    private val DRAW_CHROMA = ChromaFontRenderer(CHROMA_COLOR)
+    private var CHROMA_COLOR_SHADOW: Int = -0xAAAAAB
+    private val DRAW_CHROMA_SHADOW = ChromaFontRenderer(CHROMA_COLOR_SHADOW)
+
+    private var currentDrawState: ChromaFontRenderer? = null
+    private var previewChroma = false
+
+    /**
+     * Setups the [ChromaFontRenderer][at.hannibal2.skyhanni.features.chroma.ChromaFontRenderer] for rendering text
+     * in chroma. This should only be used when you don't have control over the color code a string uses, or it
+     * doesn't make sense to add §Z color code to a string.
+     *
+     * If you do have control over the color code, you can prepend the string with §Z instead.
+     *
+     * **Usage:**
+     *
+     * Surround string render call with this method and [endChromaFont].
+     * ```
+     *     FontRendererHook.setupChromaFont()
+     *     // render string call(s) here...
+     *     FontRendererHook.endChromaFont()
+     * ```
+     *
+     * Note: This only works if the string render call ends up using
+     * [FontRenderer#drawString()][net.minecraft.client.gui.FontRenderer.drawString] rather than a custom font renderer
+     *
+     */
+    fun setupChromaFont() {
+        DRAW_CHROMA.startChroma()
+        DRAW_CHROMA_SHADOW.startChroma()
+    }
+
+    /**
+     * See [setupChromaFont]
+     */
+    fun endChromaFont() {
+        DRAW_CHROMA.endChroma()
+        DRAW_CHROMA_SHADOW.endChroma()
+    }
+
+    @JvmStatic
+    fun beginChromaRendering(text: String, shadow: Boolean) {
+        if (!LorenzUtils.inSkyBlock) return
+        if (!SkyHanniMod.feature.chroma.enabled) return
+
+        if (text == "§fPlease star the mod on GitHub!") {
+            previewChroma = true
+            setupChromaFont()
+        }
+
+        val alpha = (Minecraft.getMinecraft().fontRendererObj as AccessorFontRenderer).alpha
+        if (shadow) {
+            currentDrawState = DRAW_CHROMA_SHADOW
+            CHROMA_COLOR_SHADOW = ((255 * alpha).toInt() shl 24 or 0x555555)
+        } else {
+            currentDrawState = DRAW_CHROMA
+            CHROMA_COLOR = ((255 * alpha).toInt() shl 24 or 0xFFFFFF)
+        }
+
+        // Best feature ngl
+        if (SkyHanniMod.feature.chroma.allChroma) {
+            // Handles setting the base color of text when they don't use color codes i.e. MoulConfig
+            if (shadow) {
+                GlStateManager.color(0.33f, 0.33f, 0.33f, 1f)
+            } else {
+                GlStateManager.color(1f, 1f, 1f, 1f)
+            }
+            setupChromaFont()
+        }
+
+        currentDrawState?.loadChromaEnv()
+    }
+
+    @JvmStatic
+    fun toggleChromaOn() {
+        if (!LorenzUtils.inSkyBlock) return
+
+        currentDrawState?.newChromaEnv()?.bindActualColor()
+    }
+
+    @JvmStatic
+    fun forceWhiteColorCode(i1: Int) : Int {
+        if (!SkyHanniMod.feature.chroma.enabled) return i1
+
+        val drawState = currentDrawState ?: return i1
+        if (drawState.getChromaState()) {
+            if (i1 < 16) {
+                return 15
+            }
+        }
+
+        return i1
+    }
+
+    @JvmStatic
+    fun restoreChromaState() {
+        if (!SkyHanniMod.feature.chroma.enabled) return
+        if (!LorenzUtils.inSkyBlock) return
+
+        currentDrawState?.restoreChromaEnv()
+    }
+
+    @JvmStatic
+    fun endChromaRendering() {
+        if (!SkyHanniMod.feature.chroma.enabled) return
+        if (!LorenzUtils.inSkyBlock) return
+
+        if (previewChroma) {
+            previewChroma = false
+            endChromaFont()
+        }
+
+        if (SkyHanniMod.feature.chroma.allChroma) endChromaFont()
+
+        currentDrawState?.endChromaEnv()
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/mixins/transformers/AccessorFontRenderer.java b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/AccessorFontRenderer.java
new file mode 100644
index 000000000..e20462d1a
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/AccessorFontRenderer.java
@@ -0,0 +1,12 @@
+package at.hannibal2.skyhanni.mixins.transformers;
+
+import net.minecraft.client.gui.FontRenderer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(FontRenderer.class)
+public interface AccessorFontRenderer {
+
+    @Accessor("alpha")
+    float getAlpha();
+}
diff --git a/src/main/java/at/hannibal2/skyhanni/mixins/transformers/AccessorMinecraft.java b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/AccessorMinecraft.java
new file mode 100644
index 000000000..24074f296
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/AccessorMinecraft.java
@@ -0,0 +1,13 @@
+package at.hannibal2.skyhanni.mixins.transformers;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.util.Timer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(Minecraft.class)
+public interface AccessorMinecraft {
+
+    @Accessor("timer")
+    Timer getTimer();
+}
diff --git a/src/main/java/at/hannibal2/skyhanni/mixins/transformers/MixinFontRenderer.java b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/MixinFontRenderer.java
new file mode 100644
index 000000000..cf357eb74
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/MixinFontRenderer.java
@@ -0,0 +1,75 @@
+package at.hannibal2.skyhanni.mixins.transformers;
+
+import at.hannibal2.skyhanni.SkyHanniMod;
+import at.hannibal2.skyhanni.mixins.hooks.FontRendererHook;
+import net.minecraft.client.gui.FontRenderer;
+import org.spongepowered.asm.lib.Opcodes;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.*;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+@Mixin(FontRenderer.class)
+public abstract class MixinFontRenderer {
+
+    /**
+     * Inject call to {@link FontRendererHook#beginChromaRendering(String, boolean)} as first call
+     */
+    @Inject(method = "renderStringAtPos", at = @At("HEAD"))
+    public void beginRenderString(String text, boolean shadow, CallbackInfo ci) {
+        FontRendererHook.beginChromaRendering(text, shadow);
+    }
+
+    /**
+     * Modify color code constant to add Z color code
+     */
+    @ModifyConstant(method = "renderStringAtPos", constant = @Constant(stringValue = "0123456789abcdefklmnor"))
+    public String insertZColorCode(String constant) {
+        if (!SkyHanniMod.getFeature().chroma.enabled) return constant;
+        return "0123456789abcdefklmnorz";
+    }
+
+    /**
+     * Inject call to {@link FontRendererHook#restoreChromaState()} after 1st and 3rd fontrenderer.italicStyle = ___ call
+     */
+    @Inject(method = "renderStringAtPos", at = {
+            @At(value = "FIELD", opcode = Opcodes.PUTFIELD, target = "Lnet/minecraft/client/gui/FontRenderer;italicStyle:Z", ordinal = 0, shift = At.Shift.AFTER),
+            @At(value = "FIELD", opcode = Opcodes.PUTFIELD, target = "Lnet/minecraft/client/gui/FontRenderer;italicStyle:Z", ordinal = 2, shift = At.Shift.AFTER)})
+    public void insertRestoreChromaState(CallbackInfo ci) {
+        FontRendererHook.restoreChromaState();
+    }
+
+    @Shadow
+    protected abstract void resetStyles();
+
+    /**
+     * Inject call to {@link FontRendererHook#toggleChromaOn()} to check for Z color code index and if so,
+     * reset styles and toggle chroma on
+     */
+    @Inject(method = "renderStringAtPos", at = @At(value = "INVOKE", target = "Ljava/lang/String;indexOf(I)I", ordinal = 0, shift = At.Shift.BY, by = 2), locals = LocalCapture.CAPTURE_FAILHARD)
+    public void toggleChromaCondition(String text, boolean shadow, CallbackInfo ci, int i, char c0, int i1) {
+        if (!SkyHanniMod.getFeature().chroma.enabled) return;
+        if (i1 == 22) {
+            this.resetStyles();
+            FontRendererHook.toggleChromaOn();
+        }
+    }
+
+    /**
+     * Replace all color codes (when chroma is enabled) to white so chroma renders uniformly and at best brightness
+     */
+    @ModifyVariable(method = "renderStringAtPos", at = @At(value = "INVOKE", target = "Ljava/lang/String;indexOf(I)I", ordinal = 0, shift = At.Shift.BY, by = 2), ordinal = 1)
+    public int forceWhiteColorCode(int i1) {
+        return FontRendererHook.forceWhiteColorCode(i1);
+    }
+
+    /**
+     * Inject call to {@link FontRendererHook#endChromaRendering()} to turn off chroma rendering after entire
+     * string has been rendered
+     */
+    @Inject(method = "renderStringAtPos", at = @At("RETURN"))
+    public void insertEndOfString(String text, boolean shadow, CallbackInfo ci) {
+        FontRendererHook.endChromaRendering();
+    }
+}
diff --git a/src/main/java/at/hannibal2/skyhanni/mixins/transformers/MixinPatcherFontRendererHook.java b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/MixinPatcherFontRendererHook.java
new file mode 100644
index 000000000..7c585b725
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/mixins/transformers/MixinPatcherFontRendererHook.java
@@ -0,0 +1,21 @@
+package at.hannibal2.skyhanni.mixins.transformers;
+
+import at.hannibal2.skyhanni.SkyHanniMod;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Pseudo
+@Mixin(targets = "club.sk1er.patcher.hooks.FontRendererHook")
+public class MixinPatcherFontRendererHook {
+
+    @Inject(method = "renderStringAtPos(Ljava/lang/String;Z)Z", at = @At("HEAD"), cancellable = true)
+    public void overridePatcherFontRenderer(String string, boolean shadow, CallbackInfoReturnable<Boolean> cir) {
+        if (SkyHanniMod.getFeature().chroma.enabled) {
+            cir.cancel();
+            cir.setReturnValue(false);
+        }
+    }
+}
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/ColorUtils.kt b/src/main/java/at/hannibal2/skyhanni/utils/ColorUtils.kt
new file mode 100644
index 000000000..076afc0c4
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/utils/ColorUtils.kt
@@ -0,0 +1,11 @@
+package at.hannibal2.skyhanni.utils
+
+object ColorUtils {
+    fun getRed(colour: Int) = colour shr 16 and 0xFF
+
+    fun getGreen(colour: Int) = colour shr 8 and 0xFF
+
+    fun getBlue(colour: Int) = colour and 0xFF
+
+    fun getAlpha(colour: Int) = colour shr 24 and 0xFF
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/shader/Shader.kt b/src/main/java/at/hannibal2/skyhanni/utils/shader/Shader.kt
new file mode 100644
index 000000000..f198f7e7a
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/utils/shader/Shader.kt
@@ -0,0 +1,55 @@
+package at.hannibal2.skyhanni.utils.shader
+
+import at.hannibal2.skyhanni.utils.LorenzUtils
+import net.minecraft.client.shader.ShaderLinkHelper
+import org.apache.commons.lang3.StringUtils
+import org.lwjgl.opengl.GL11
+import java.util.function.Supplier
+
+/**
+ * Superclass for shader objects to compile and attach vertex and fragment shaders to the shader program
+ *
+ * Modified class from SkyblockAddons
+ *
+ * Credit: [Shader.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/shader/Shader.java)
+ */
+abstract class Shader(vertex: String, fragment: String) {
+
+    var shaderProgram: Int = ShaderLinkHelper.getStaticShaderLinkHelper().createProgram()
+    private val uniforms: MutableList<Uniform<*>> = mutableListOf()
+
+    init {
+        val vertexShaderID = ShaderManager.loadShader(ShaderType.VERTEX, vertex)
+        ShaderManager.attachShader(shaderProgram, vertexShaderID)
+        val fragmentShaderID = ShaderManager.loadShader(ShaderType.FRAGMENT, fragment)
+        ShaderManager.attachShader(shaderProgram, fragmentShaderID)
+
+        ShaderHelper.glLinkProgram(shaderProgram)
+
+        val linkStatus = ShaderHelper.glGetProgrami(shaderProgram, ShaderHelper.GL_LINK_STATUS)
+        if (linkStatus == GL11.GL_FALSE) {
+            LorenzUtils.consoleLog(
+                "Error occurred when linking program with Vertex Shader: $vertex and Fragment Shader: $fragment : " +
+                        StringUtils.trim(ShaderHelper.glGetProgramInfoLog(shaderProgram, 1024))
+            )
+        }
+
+        this.registerUniforms()
+    }
+
+    abstract fun registerUniforms()
+
+    fun updateUniforms() {
+        for (uniform in uniforms) {
+            uniform.update()
+        }
+    }
+
+    fun enable() = ShaderHelper.glUseProgram(shaderProgram)
+
+    fun disable() = ShaderHelper.glUseProgram(0)
+
+    fun <T> registerUniform(uniformType: Uniform.UniformType<T>, name: String, uniformValuesSupplier: Supplier<T>) {
+        uniforms.add(Uniform(this, uniformType, name, uniformValuesSupplier))
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/shader/ShaderHelper.kt b/src/main/java/at/hannibal2/skyhanni/utils/shader/ShaderHelper.kt
new file mode 100644
index 000000000..e554a4098
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/utils/shader/ShaderHelper.kt
@@ -0,0 +1,124 @@
+package at.hannibal2.skyhanni.utils.shader
+
+import at.hannibal2.skyhanni.utils.LorenzUtils
+import org.lwjgl.opengl.*
+
+/**
+ * Class to check shaders support, OpenGL capabilities, and shader helper functions
+ *
+ *  Modified class from SkyblockAddons
+ *
+ *  Credit: [ShaderHelper.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/shader/ShaderHelper.java)
+ */
+class ShaderHelper {
+    companion object {
+        private var SHADERS_SUPPORTED: Boolean
+
+        private var USING_ARB_SHADERS: Boolean
+
+        var GL_LINK_STATUS: Int
+        var GL_COMPILE_STATUS: Int
+        var GL_VERTEX_SHADER: Int
+        var GL_FRAGMENT_SHADER: Int
+
+        init {
+            val capabilities: ContextCapabilities = GLContext.getCapabilities()
+
+            // Check OpenGL 2.0 Capabilities
+            val openGL20supported = capabilities.OpenGL20
+            SHADERS_SUPPORTED = openGL20supported ||
+                    capabilities.GL_ARB_vertex_shader &&
+                    capabilities.GL_ARB_fragment_shader &&
+                    capabilities.GL_ARB_shader_objects
+
+            var log = "Shaders are"
+            if (!SHADERS_SUPPORTED) log += " not"
+            log += " available. "
+
+            if (SHADERS_SUPPORTED) {
+                if (capabilities.OpenGL20) {
+                    log += "OpenGL 2.0 is supported. "
+                    USING_ARB_SHADERS = false
+                    GL_LINK_STATUS = GL20.GL_LINK_STATUS
+                    GL_COMPILE_STATUS = GL20.GL_COMPILE_STATUS
+                    GL_VERTEX_SHADER = GL20.GL_VERTEX_SHADER
+                    GL_FRAGMENT_SHADER = GL20.GL_FRAGMENT_SHADER
+                } else {
+                    log += "ARB_shader_objects, ARB_vertex_shader, and ARB_fragment_shader are supported. "
+                    USING_ARB_SHADERS = true
+                    GL_LINK_STATUS = ARBShaderObjects.GL_OBJECT_LINK_STATUS_ARB
+                    GL_COMPILE_STATUS = ARBShaderObjects.GL_OBJECT_COMPILE_STATUS_ARB
+                    GL_VERTEX_SHADER = ARBVertexShader.GL_VERTEX_SHADER_ARB
+                    GL_FRAGMENT_SHADER = ARBFragmentShader.GL_FRAGMENT_SHADER_ARB
+                }
+            } else {
+                log += "OpenGL 2.0 is not supported and ARB_shader_objects, ARB_vertex_shader, and ARB_fragment_shader are not supported."
+                USING_ARB_SHADERS = false
+                GL_LINK_STATUS = GL11.GL_FALSE
+                GL_COMPILE_STATUS = GL11.GL_FALSE
+                GL_VERTEX_SHADER = GL11.GL_FALSE
+                GL_FRAGMENT_SHADER = GL11.GL_FALSE
+            }
+
+            LorenzUtils.consoleLog(log)
+        }
+
+        fun glLinkProgram(program: Int) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glLinkProgramARB(program) else GL20.glLinkProgram(program)
+        }
+
+        fun glGetProgramInfoLog(program: Int, maxLength: Int) : String {
+            return if (USING_ARB_SHADERS) ARBShaderObjects.glGetInfoLogARB(program, maxLength) else GL20.glGetProgramInfoLog(program, maxLength)
+        }
+
+        fun glGetProgrami(program: Int, pname: Int) : Int {
+            return if (USING_ARB_SHADERS) ARBShaderObjects.glGetObjectParameteriARB(program, pname) else GL20.glGetProgrami(program, pname)
+        }
+
+        fun glUseProgram(program: Int) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glUseProgramObjectARB(program) else GL20.glUseProgram(program)
+        }
+
+        fun glAttachShader(program: Int, shaderIn: Int) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glAttachObjectARB(program, shaderIn) else GL20.glAttachShader(program, shaderIn)
+        }
+
+        fun glCreateShader(type: Int) : Int {
+            return if (USING_ARB_SHADERS) ARBShaderObjects.glCreateShaderObjectARB(type) else GL20.glCreateShader(type)
+        }
+
+        fun glShaderSource(shader: Int, source: CharSequence) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glShaderSourceARB(shader, source) else GL20.glShaderSource(shader, source)
+        }
+
+        fun glCompileShader(shader: Int) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glCompileShaderARB(shader) else GL20.glCompileShader(shader)
+        }
+
+        fun glGetShaderi(shader: Int, pname: Int) : Int {
+            return if (USING_ARB_SHADERS) ARBShaderObjects.glGetObjectParameteriARB(shader, pname) else GL20.glGetShaderi(shader, pname)
+        }
+
+        fun glGetShaderInfoLog(shader: Int, maxLength: Int) : String {
+            return if (USING_ARB_SHADERS) ARBShaderObjects.glGetInfoLogARB(shader, maxLength) else GL20.glGetShaderInfoLog(shader, maxLength)
+        }
+
+        fun glDeleteShader(shader: Int) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glDeleteObjectARB(shader) else GL20.glDeleteShader(shader)
+        }
+
+        fun glUniform1f(location: Int, v0: Float) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glUniform1fARB(location, v0) else GL20.glUniform1f(location, v0)
+        }
+
+        fun glUniform3f(location: Int, v0: Float, v1: Float, v2: Float) {
+            if (USING_ARB_SHADERS) ARBShaderObjects.glUniform3fARB(location, v0, v1, v2) else GL20.glUniform3f(location, v0, v1, v2)
+        }
+
+        fun glGetUniformLocation(program: Int, name: CharSequence) : Int {
+            return if (USING_ARB_SHADERS) ARBShaderObjects.glGetUniformLocationARB(program, name) else GL20.glGetUniformLocation(program, name)
+        }
+
+        fun areShadersSupported() = SHADERS_SUPPORTED
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/shader/ShaderManager.kt b/src/main/java/at/hannibal2/skyhanni/utils/shader/ShaderManager.kt
new file mode 100644
index 000000000..e7eb48f11
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/utils/shader/ShaderManager.kt
@@ -0,0 +1,87 @@
+package at.hannibal2.skyhanni.utils.shader
+
+import at.hannibal2.skyhanni.features.chroma.ChromaShader
+import at.hannibal2.skyhanni.utils.LorenzUtils
+import net.minecraft.client.Minecraft
+import net.minecraft.util.ResourceLocation
+import org.apache.commons.lang3.StringUtils
+import java.io.BufferedReader
+import java.io.InputStreamReader
+
+/**
+ * Object to handle shaders for SkyHanni
+ */
+object ShaderManager {
+
+    /**
+     * For any future shaders add the object instance in this enum and
+     * in the when expression
+     */
+    enum class Shaders(val shader: Shader) {
+        CHROMA(ChromaShader.INSTANCE);
+
+        companion object {
+            fun getShaderInstance(shaderName: String) : Shader? = when (shaderName) {
+                "chroma" -> CHROMA.shader
+                else -> {
+                    null
+                }
+            }
+        }
+    }
+
+    private val shaders: MutableMap<String, Shader> = mutableMapOf()
+    private var activeShader: Shader? = null
+
+    fun enableShader(shaderName: String) {
+        var shader = shaders[shaderName]
+
+        if (shader == null) {
+            shader = Shaders.getShaderInstance(shaderName)
+            if (shader == null) return
+            shaders[shaderName] = shader
+        }
+
+        activeShader = shader
+        shader.enable()
+        shader.updateUniforms()
+    }
+
+    fun attachShader(shaderProgram: Int, shaderID: Int) {
+        ShaderHelper.glAttachShader(shaderProgram, shaderID)
+    }
+
+    fun disableShader() {
+        if (activeShader == null) return
+
+        activeShader?.disable()
+        activeShader = null
+    }
+
+    fun loadShader(type: ShaderType, fileName: String) : Int {
+        val resourceLocation = ResourceLocation("skyhanni:shaders/$fileName${type.extension}")
+
+        val source = StringBuilder()
+
+        val inputStream = Minecraft.getMinecraft().resourceManager.getResource(resourceLocation).inputStream
+        BufferedReader(InputStreamReader(inputStream)).forEachLine {
+            source.append(it).append("\n")
+        }
+
+        val shaderID = ShaderHelper.glCreateShader(type.shaderType)
+        ShaderHelper.glShaderSource(shaderID, source.toString())
+        ShaderHelper.glCompileShader(shaderID)
+
+        if (ShaderHelper.glGetShaderi(shaderID, ShaderHelper.GL_COMPILE_STATUS) == 0) {
+            LorenzUtils.consoleLog("Error occurred when compiling shader $fileName${type.extension} : " +
+                    StringUtils.trim(ShaderHelper.glGetShaderInfoLog(shaderID, 1024)))
+        }
+
+        return shaderID
+    }
+}
+
+enum class ShaderType(val extension: String, val shaderType: Int) {
+    VERTEX(".vsh", ShaderHelper.GL_VERTEX_SHADER),
+    FRAGMENT(".fsh", ShaderHelper.GL_FRAGMENT_SHADER)
+}
\ No newline at end of file
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/shader/Uniform.kt b/src/main/java/at/hannibal2/skyhanni/utils/shader/Uniform.kt
new file mode 100644
index 000000000..e87ea3b22
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/utils/shader/Uniform.kt
@@ -0,0 +1,45 @@
+package at.hannibal2.skyhanni.utils.shader
+
+import java.util.*
+import java.util.function.Supplier
+
+/**
+ * Class to handle shader uniform types
+ *
+ * Modified from SkyblockAddons
+ *
+ * Credit: [Uniform.java](https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/java/codes/biscuit/skyblockaddons/shader/Uniform.java)
+ */
+class Uniform<T>(
+    shader: Shader,
+    private val uniformType: UniformType<T>,
+    val name: String,
+    private val uniformValuesSupplier: Supplier<T>
+) {
+
+    class UniformType<T> {
+        companion object {
+            val FLOAT: UniformType<Float> = UniformType()
+            val VEC3: UniformType<FloatArray> = UniformType()
+            val BOOL: UniformType<Boolean> = UniformType()
+        }
+    }
+
+    private val uniformID: Int = ShaderHelper.glGetUniformLocation(shader.shaderProgram, name)
+    private var previousUniformValue: T? = null
+
+    fun update() {
+        val newUniformValue: T = uniformValuesSupplier.get()
+        if (!Objects.deepEquals(previousUniformValue, newUniformValue)) {
+            when (uniformType) {
+                UniformType.FLOAT -> ShaderHelper.glUniform1f(uniformID, (newUniformValue as Float))
+                UniformType.VEC3 -> {
+                    val values = newUniformValue as FloatArray
+                    ShaderHelper.glUniform3f(uniformID, values[0], values[1], values[2])
+                }
+                UniformType.BOOL -> ShaderHelper.glUniform1f(uniformID, if (newUniformValue as Boolean) 1f else 0f)
+            }
+            previousUniformValue = newUniformValue
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/assets/skyhanni/shaders/chroma.fsh b/src/main/resources/assets/skyhanni/shaders/chroma.fsh
new file mode 100644
index 000000000..7b48a62f9
--- /dev/null
+++ b/src/main/resources/assets/skyhanni/shaders/chroma.fsh
@@ -0,0 +1,43 @@
+// Chroma Fragment Shader
+// Modified from SkyblockAddons
+// Credit: https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/resources/assets/skyblockaddons/shaders/program/chroma_screen_textured.fsh
+
+#version 120
+
+uniform float chromaSize;
+uniform float timeOffset;
+uniform float saturation;
+uniform bool forwardDirection;
+
+uniform sampler2D outTexture;
+
+varying vec2 outTextureCoords;
+varying vec4 outColor;
+
+float rgb2b(vec3 rgb) {
+    return max(max(rgb.r, rgb.g), rgb.b);
+}
+
+vec3 hsb2rgb_smooth(vec3 c) {
+    vec3 rgb = clamp(abs(mod(c.x * 6.0 + vec3(0.0, 4.0, 2.0), 6.0) - 3.0) - 1.0, 0.0, 1.0);
+    rgb = rgb * rgb * (3.0 - 2.0 * rgb); // Cubic smoothing
+    return c.z * mix(vec3(1.0), rgb, c.y);
+}
+
+void main() {
+    vec4 originalColor = texture2D(outTexture, outTextureCoords) * outColor;
+
+    // Determine the direction chroma moves
+    float fragCoord;
+    if (forwardDirection) {
+        fragCoord = gl_FragCoord.x - gl_FragCoord.y;
+    } else {
+        fragCoord = gl_FragCoord.x + gl_FragCoord.y;
+    }
+
+    // The hue takes in account the position, chroma settings, and time
+    float hue = mod(((fragCoord) / chromaSize) - timeOffset, 1.0);
+
+    // Set the color to use the new hue & original saturation/value/alpha values
+    gl_FragColor = vec4(hsb2rgb_smooth(vec3(hue, saturation, rgb2b(originalColor.rgb))), originalColor.a);
+}
\ No newline at end of file
diff --git a/src/main/resources/assets/skyhanni/shaders/chroma.vsh b/src/main/resources/assets/skyhanni/shaders/chroma.vsh
new file mode 100644
index 000000000..5f5030d07
--- /dev/null
+++ b/src/main/resources/assets/skyhanni/shaders/chroma.vsh
@@ -0,0 +1,15 @@
+// Chroma Vertex Shader
+// Credit: https://github.com/BiscuitDevelopment/SkyblockAddons/blob/main/src/main/resources/assets/skyblockaddons/shaders/program/chroma_screen_textured.vsh
+
+#version 120
+
+varying vec2 outTextureCoords;
+varying vec4 outColor;
+
+void main() {
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+
+    // Pass the color & texture coords to the fragment shader
+    outColor = gl_Color;
+    outTextureCoords = gl_MultiTexCoord0.st;
+}
diff --git a/src/main/resources/mixins.skyhanni.json b/src/main/resources/mixins.skyhanni.json
index 8daf1a330..aa1b61873 100644
--- a/src/main/resources/mixins.skyhanni.json
+++ b/src/main/resources/mixins.skyhanni.json
@@ -2,6 +2,9 @@
   "package": "at.hannibal2.skyhanni.mixins.transformers",
   "refmap": "mixins.skyhanni.refmap.json",
   "compatibilityLevel": "JAVA_8",
+  "injectors": {
+    "maxShiftBy": 2
+  },
   "mixins": [
     "AccessorChatComponentText",
     "AccessorGuiPlayerTabOverlay",
@@ -13,6 +16,7 @@
     "MixinItemStack",
     "MixinNetHandlerPlayClient",
     "MixinNetworkManager",
+    "MixinPatcherFontRendererHook",
     "MixinRendererLivingEntity",
     "MixinRenderGlobal",
     "MixinRenderItem",
@@ -22,10 +26,13 @@
     "renderer.MixinRendererLivingEntity"
   ],
   "client": [
+    "AccessorFontRenderer",
     "AccessorGuiEditSign",
     "AccessorKeyBinding",
+    "AccessorMinecraft",
     "CustomRenderGlobal",
     "MixinEntityRenderer",
+    "MixinFontRenderer",
     "MixinGuiChat",
     "MixinGuiIngame",
     "MixinGuiPlayerTabOverlay",