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package com.anthonyhilyard.iceberg.renderer;
import org.joml.Vector3f;
import org.lwjgl.system.MemoryStack;
import com.anthonyhilyard.iceberg.util.UnsafeUtil;
import com.mojang.blaze3d.vertex.VertexConsumer;
import net.minecraft.client.renderer.RenderType;
import me.jellysquid.mods.sodium.client.render.vertex.VertexFormatDescription;
import me.jellysquid.mods.sodium.client.render.vertex.transform.CommonVertexElement;
public class VertexCollectorSodium extends VertexCollector
{
protected VertexCollectorSodium()
{
super();
}
@Override
public VertexConsumer getBuffer(RenderType renderType)
{
return new VertexConsumerSodium()
{
@Override
public VertexConsumer vertex(double x, double y, double z)
{
currentVertex.set((float) x, (float) y, (float) z);
currentAlpha = defaultAlpha;
return this;
}
@Override
public VertexConsumer color(int r, int g, int b, int a)
{
currentAlpha = a;
return this;
}
@Override
public VertexConsumer uv(float u, float v) { return this; }
@Override
public VertexConsumer overlayCoords(int x, int y) { return this; }
@Override
public VertexConsumer uv2(int u, int v) { return this; }
@Override
public VertexConsumer normal(float x, float y, float z) { return this; }
@Override
public void endVertex()
{
if (currentAlpha >= 25)
{
vertices.add(new Vector3f(currentVertex));
}
}
@Override
public void defaultColor(int r, int g, int b, int a)
{
defaultAlpha = a;
}
@Override
public void unsetDefaultColor()
{
defaultAlpha = 255;
}
@Override
public void push(MemoryStack memoryStack, long pointer, int count, VertexFormatDescription format)
{
// Loop over each vertex, and add it to the list if it's opaque.
// To determine this, we need to check the vertex format to find the vertex position and alpha.
for (int i = 0; i < count; i++)
{
// Get the vertex position.
float x = UnsafeUtil.readFloat(pointer + i * format.stride + format.getOffset(CommonVertexElement.POSITION));
float y = UnsafeUtil.readFloat(pointer + i * format.stride + format.getOffset(CommonVertexElement.POSITION) + 4);
float z = UnsafeUtil.readFloat(pointer + i * format.stride + format.getOffset(CommonVertexElement.POSITION) + 8);
// Get the vertex alpha.
int a = UnsafeUtil.readByte(pointer + i * format.stride + format.getOffset(CommonVertexElement.COLOR) + 3) & 0xFF;
// Add the vertex to the list if it's opaque.
if (a >= 25)
{
vertices.add(new Vector3f(x, y, z));
}
}
}
};
}
}
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