Custom Crosshair Mod circle fix

Custom Crosshair Mod Fix

A small compatibility patch for Minecraft 1.21.11 that fixes broken circle crosshair rendering (https://modrinth.com/mod/custom-crosshair-mod).

This mod does not replace the original mod and requires the original mod to be installed.

How that works?

The render was broken because the original mod drew the circle using an old line-based approach: it generated points around the circle and submitted them as a line render state.

Original idea:

for (int i = startAngle; i <= endAngle; i++) {
    float radians = (i - 90) * ratio;
    points.add(x + cos(radians) * radius);
    points.add(y + sin(radians) * radius);
}

The problem was that the original ModLinesGuiElementRenderState used a debug/line pipeline with lineWidth(2.0F). In Minecraft 1.21.11’s newer GUI render-state system, that line rendering path became unreliable: the circle could break into chunks, disappear, or render with incorrect thickness.

So this mod overrides old circle rendering replaces it with RingGuiElementRenderState

The rendering is different from the original in older versions!

Comparing

old:

new: