From c73b97624641c3ab14b5e3c1ec7d9880fc0abd97 Mon Sep 17 00:00:00 2001
From: olebeck <31539311+olebeck@users.noreply.github.com>
Date: Fri, 2 Sep 2022 18:20:06 +0200
Subject: [PATCH] fix small render bug

---
 chunk_render.go | 15 ++++++++++++---
 go.mod          |  2 +-
 go.sum          |  2 ++
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/chunk_render.go b/chunk_render.go
index e3622f9..cf9a410 100644
--- a/chunk_render.go
+++ b/chunk_render.go
@@ -14,6 +14,9 @@ func chunkGetColorAt(c *chunk.Chunk, x uint8, y int16, z uint8) color.RGBA {
 	p := cube.Pos{int(x), int(y), int(z)}
 	have_up := false
 	p.Side(cube.FaceUp).Neighbours(func(neighbour cube.Pos) {
+		if neighbour.X() < 0 || neighbour.X() >= 16 || neighbour.Z() < 0 || neighbour.Z() >= 16 {
+			return
+		}
 		if !have_up {
 			block_rid := c.Block(uint8(neighbour[0]), int16(neighbour[1]), uint8(neighbour[2]), 0)
 			b, found := world.BlockByRuntimeID(block_rid)
@@ -46,9 +49,15 @@ func chunkGetColorAt(c *chunk.Chunk, x uint8, y int16, z uint8) color.RGBA {
 	}
 
 	if have_up {
-		col.R -= 10
-		col.G -= 10
-		col.B -= 10
+		if col.R > 10 {
+			col.R -= 10
+		}
+		if col.G > 10 {
+			col.G -= 10
+		}
+		if col.B > 10 {
+			col.B -= 10
+		}
 	}
 	return col
 }
diff --git a/go.mod b/go.mod
index d6bae47..6b52f38 100644
--- a/go.mod
+++ b/go.mod
@@ -23,7 +23,7 @@ require (
 
 replace github.com/sandertv/gophertunnel => github.com/olebeck/gophertunnel v1.24.8-3
 
-replace github.com/df-mc/dragonfly => github.com/olebeck/dragonfly v0.8.2-6
+replace github.com/df-mc/dragonfly => github.com/olebeck/dragonfly v0.8.3-0.20220902161600-2f9b3652bbb7
 
 require (
 	github.com/brentp/intintmap v0.0.0-20190211203843-30dc0ade9af9 // indirect
diff --git a/go.sum b/go.sum
index 7173809..6a8c162 100644
--- a/go.sum
+++ b/go.sum
@@ -43,6 +43,8 @@ github.com/olebeck/dragonfly v0.8.2-5 h1:0G9dhTQ1Oae1KnmgRjNeqYPQ/PsLFGwMWtQYAJk
 github.com/olebeck/dragonfly v0.8.2-5/go.mod h1:xgpCDhHoP03RygPaTrzzDwsSTcEZhxNPMV3CAxETj+I=
 github.com/olebeck/dragonfly v0.8.2-6 h1:h7GoXbNMS1OTOfm/QK7QQ3VF4By5Scfk/7Sd0LJ13s0=
 github.com/olebeck/dragonfly v0.8.2-6/go.mod h1:xgpCDhHoP03RygPaTrzzDwsSTcEZhxNPMV3CAxETj+I=
+github.com/olebeck/dragonfly v0.8.3-0.20220902161600-2f9b3652bbb7 h1:/JD6mWd0/hPcCEvLNB/GGJhqhMBHYV1Hce5vyM9Wy2s=
+github.com/olebeck/dragonfly v0.8.3-0.20220902161600-2f9b3652bbb7/go.mod h1:ObfYlB77fxGLqU2CLquvk8ibAEMYoixiXfs7pxrOGCI=
 github.com/olebeck/gophertunnel v1.24.6 h1:Mnpzk9e+eMdfx/wbEsmwQabEbalNzFRu+3iMEBzaVSg=
 github.com/olebeck/gophertunnel v1.24.6/go.mod h1:dMOw79FHxr2azEqiGH20AwdljisAN1kqwu5SjPBnZ5k=
 github.com/olebeck/gophertunnel v1.24.7 h1:EMYLDMxGxzPtoI/Y77KHPcfelkGS+QcjdtStGIqtYFE=