From a2aea18d47d00e7b65b908cc15606e411ad8359d Mon Sep 17 00:00:00 2001
From: BuckarooBanzay <BuckarooBanzay@users.noreply.github.com>
Date: Sun, 30 Jun 2024 11:40:06 +0200
Subject: [PATCH] bottom right wip

---
 isotilerenderer.go      | 14 ++++++++++++++
 isotilerenderer_test.go |  4 ++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/isotilerenderer.go b/isotilerenderer.go
index ff217e8..a01a43d 100644
--- a/isotilerenderer.go
+++ b/isotilerenderer.go
@@ -26,6 +26,8 @@ func RenderIsometricTile(na types.NodeAccessor, cr types.ColorResolver, from, to
 	min, max := types.SortPos(from, to)
 	size := to.Subtract(from).Add(types.NewPos(1, 1, 1))
 	top_size := types.NewPos(size.X(), 1, size.Z())
+	probe_bounds_min := types.NewPos(min.X()-size.Y(), min.Y(), min.Z()-size.Y())
+	probe_bounds_max := types.NewPos(max.X()+size.Y(), max.Y(), max.Z()+size.Y())
 
 	width, height := GetIsometricImageSize(top_size, opts.CubeLen)
 	center_x, center_y := GetIsoCenterCubeOffset(size, opts.CubeLen)
@@ -46,6 +48,18 @@ func RenderIsometricTile(na types.NodeAccessor, cr types.ColorResolver, from, to
 		}
 	}
 
+	// bottom right corner
+	for zi := 0; zi <= size.Z(); zi++ {
+		for x := min.X() + zi; x <= max.X()-zi; x++ {
+			pos := types.NewPos(x, max.Y(), min.Z()-zi)
+			pnodes, err := Probe(probe_bounds_min, probe_bounds_max, pos, ipos, na, cr, true)
+			if err != nil {
+				return nil, fmt.Errorf("probe error, top layer: %v", err)
+			}
+			nodes = append(nodes, pnodes...)
+		}
+	}
+
 	slices.SortFunc(nodes, SortNodesWithColor)
 
 	for _, n := range nodes {
diff --git a/isotilerenderer_test.go b/isotilerenderer_test.go
index 29adda4..0619ce1 100644
--- a/isotilerenderer_test.go
+++ b/isotilerenderer_test.go
@@ -23,8 +23,8 @@ func TestIsoTileRenderer(t *testing.T) {
 	err = cm.LoadDefaults()
 	assert.NoError(t, err)
 
-	from := types.NewPos(0, 0, 0)
-	to := types.NewPos(15, 30, 15)
+	from := types.NewPos(16, 16, 16)
+	to := types.NewPos(31, 30, 31)
 	opts := &maprenderer.IsoTileRenderOpts{
 		CubeLen: 16,
 	}