Fix nextbox colors

3 files changed, 3 insertions, 3 deletions

diff --git a/main.go b/main.go
index faa48c3..478d8f4 100644
--- a/main.go
+++ b/main.go
@@ -90,7 +90,7 @@ func main() {
 		slines := fmt.Sprintf("lines %d", linescleared)
 		if !harddrop {
 			fpos(0, 0, f.Add(p))
-			next := tris.NewField(20, 4)
+			var next tris.Field
 			b, next = b.Next(5)
 			npos(0, 24, next)
 			ppos(1, 32, sscore)
diff --git a/tris/core.go b/tris/core.go
index e0ae111..6963294 100644
--- a/tris/core.go
+++ b/tris/core.go
@@ -168,7 +168,7 @@ func (f Field) Add(p Placement) Field {
 		}
 	}
 	for _, point := range p.Points() {
-		if point.Y < 0 || point.Y > f.H() || point.X < 0 || point.X > f.W() {
+		if point.Y < 0 || point.Y >= f.H() || point.X < 0 || point.X >= f.W() {
 			continue
 		}
 		fn[point.Y][point.X] = p.Color()
diff --git a/tris/next.go b/tris/next.go
index e72a4ff..1a9903f 100644
--- a/tris/next.go
+++ b/tris/next.go
@@ -1,7 +1,7 @@
 package tris
 
 func (b Bag) Next(n int) (Bag, Field) {
-	var f Field
+	f := NewField(20, 4)
 	for len(b) < n {
 		b = append(b, NewBag()...)
 	}