🟢 Stunnable Mod

A minimal, high-performance client-side Fabric mod that adds highly customizable, reactive visual rendering boxes and outlines around target players within reach range.

Perfect for maintaining spatial awareness and monitoring stun / interaction ranges with fluid animations, rainbow effects, and breathing transitions. 🌟

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📋 Table of Contents

• ⚡ Quick Start
• 🧠 How It Works — Core Architecture
• ⚙️ Configuration Options
• ✨ Visual Effects System
• 🔌 Integration & ModMenu

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⚡ Quick Start

1. Ensure you have:

   • Fabric Loader
   • Fabric API
   • Cloth Config
   • AutoConfig

2. Drop the stunnable.jar file into your:

.minecraft/mods

1. Launch the game.

2. Open the configuration screen directly through ModMenu. 🛠️

Customize:

• Colors 🎨
• Rainbow rendering 🌈
• Breathing opacity transitions 🫁
• Outline width 📏
• Fill opacity 🔥

Perfectly tune the HUD style to your preference.

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🧠 How It Works — Core Architecture

The mod operates entirely client-side, hooking directly into Minecraft's rendering lifecycle to draw smooth overlays around nearby targets. 🖥️

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🔄 Core Initialization

The mod uses standard Fabric entry points for initialization and configuration setup.

StunnableClient

Implements:

ClientModInitializer

Responsible for:

• Client-side initialization
• Secondary configuration handling

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Stunnable

Implements:

ClientModInitializer

Responsible for:

• Registering AutoConfig schemas
• Hooking into Fabric render lifecycle events

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🎨 Rendering Lifecycle Hook

Inside Stunnable.java, the mod subscribes to:

WorldRenderEvents.END_MAIN.register(context -> {
    ...
});

This ensures:

• Rendering updates every frame
• No game tick delay
• No block update dependency
• Extremely smooth visual tracking

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📐 Positioning & Calculation Pipeline

🎯 Reach Restrictions

The mod dynamically extracts player interaction range using entity attributes:

double reach = mc.player.getAttributeValue(Attributes.ENTITY_INTERACTION_RANGE);

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📦 Relative Delta Rendering

Bounding boxes are translated into camera-relative local coordinates to eliminate render jitter:

AABB box = player.getBoundingBox().move(-camPos.x, -camPos.y, -camPos.z);

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🚫 Target Exclusions

The renderer loops through loaded players while excluding the local player:

if (player != mc.player && playerPos.distanceTo(player.position()) <= reach)

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⚙️ Configuration Options

The mod includes a complete configurable rendering system accessible through:

• ModMenu
• Cloth Config UI
• AutoConfig config files

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🖼️ Render Category

Controls:

• Box visuals
• Outline width
• Opacity
• Base colors

Option	Type	Default	Purpose
fillColor	Color Picker (Hex)	0x00FF00	Inside box face color
outlineColor	Color Picker (Hex)	0x00FF00	Bounding edge color
onlyOutline	Boolean	false	Disables fill rendering
fillOpacity	Bounded Discrete (0-100)	50	Fill transparency
outlineWidth	Bounded Discrete (1-5)	2	Line thickness

---

🌈 Effects Category

Handles:

• Dynamic colors
• Animated transparency
• Procedural visual effects

Option	Type	Default	Purpose
rainbowMode	Boolean	false	Enables HSV rainbow cycling
rainbowSpeed	Bounded Discrete (1-20)	5	Hue transition speed
rainbowFillOnly	Boolean	true	Rainbow affects fill only
breathingEnabled	Boolean	false	Enables opacity breathing
breathingSpeed	Bounded Discrete (1-20)	5	Breathing cycle speed
breathingStrength	Bounded Discrete (0-100)	50	Breathing intensity

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✨ Visual Effects System

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🌈 Color Mathematics (HSV → RGB)

When rainbow mode is enabled, colors are generated dynamically using time-synchronized HSV calculations.

This creates:

• Smooth gradients
• No stuttering
• Continuous spectrum transitions

private int hsvToRgb(float hue, float saturation, float value) {
    int h = (int) (hue * 6);
    float f = hue * 6 - h;
    float p = value * (1 - saturation);
    float q = value * (1 - f * saturation);
    float t = value * (1 - (1 - f) * saturation);

    float r, g, b;

    switch (h % 6) {
        case 0 -> {
            r = value;
            g = t;
            b = p;
        }
        case 1 -> {
            r = q;
            g = value;
            b = p;
        }
        case 2 -> {
            r = p;
            g = value;
            b = t;
        }
        case 3 -> {
            r = p;
            g = q;
            b = value;
        }
        case 4 -> {
            r = t;
            g = p;
            b = value;
        }
        case 5 -> {
            r = value;
            g = p;
            b = q;
        }
        default -> {
            r = 0;
            g = 0;
            b = 0;
        }
    }

    return ((int) (r * 255) << 16)
        | ((int) (g * 255) << 8)
        | (int) (b * 255);
}

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🫁 Breathing Mathematics

The breathing system modifies opacity using a smooth trigonometric sine wave cycle:

float cycle = (float) (
    Math.sin(time * config.breathingSpeed * 0.003)
    * 0.5 + 0.5
);

float strength = config.breathingStrength / 100f;

breathMod = 1f - (
    1f - (0.3f + 0.7f * cycle)
) * strength;

This produces:

• Smooth pulsing transitions
• Non-linear fade behavior
• Adjustable animation intensity

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📐 Low-Level Vertex Buffers

Rendering is handled natively through Minecraft's internal vertex pipelines using VertexConsumer.

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🟩 Filled Boxes

Uses:

RenderTypes.debugFilledBox()

Constructs all six faces manually:

• Bottom
• Top
• North
• South
• East
• West

Example:

buffer.addVertex(pose, minX, minY, minZ)
    .setColor(r, g, b, a);

buffer.addVertex(pose, maxX, minY, minZ)
    .setColor(r, g, b, a);

buffer.addVertex(pose, maxX, minY, maxZ)
    .setColor(r, g, b, a);

buffer.addVertex(pose, minX, minY, maxZ)
    .setColor(r, g, b, a);

---

📏 Outline Boxes

Uses:

RenderTypes.LINES

Maps explicit line segments across bounding coordinates with normals and width parameters.

private void vertex(
    Matrix4f pose,
    VertexConsumer buffer,
    float x,
    float y,
    float z,
    float r,
    float g,
    float b,
    float a,
    float nx,
    float ny,
    float nz,
    float w
) {
    buffer.addVertex(pose, x, y, z)
        .setColor(r, g, b, a)
        .setNormal(nx, ny, nz)
        .setLineWidth(w);
}

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🔌 Integration & ModMenu

The mod integrates directly with ModMenu for instant GUI configuration access.

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📄 ModMenuIntegration.java

package frqme.isa.dev.stunnable.config;

import com.terraformersmc.modmenu.api.ConfigScreenFactory;
import com.terraformersmc.modmenu.api.ModMenuApi;
import me.shedaniel.autoconfig.AutoConfig;

public class ModMenuIntegration implements ModMenuApi {

    @Override
    @SuppressWarnings("removal")
    public ConfigScreenFactory<?> getModConfigScreenFactory() {
        return parent ->
            AutoConfig
                .getConfigScreen(ModConfig.class, parent)
                .get();
    }
}

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This automatically bridges:

• Cloth Config
• AutoConfig
• ModMenu

Without requiring:

• Commands
• Manual GUI handling
• Custom screen registration

🛠️