From 5c4503268f62c30d814db74dde56bfdbf5aa9293 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Wed, 17 Sep 2025 06:38:37 +0200
Subject: [PATCH] feat: add game/shape_queue.go

---
 game/shape_queue.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 game/shape_queue.go

diff --git a/game/shape_queue.go b/game/shape_queue.go
new file mode 100644
index 0000000..7d53d8f
--- /dev/null
+++ b/game/shape_queue.go
@@ -0,0 +1,43 @@
+package game
+
+import (
+	"math/rand"
+)
+
+type ShapeQueue struct {
+	shapes []ShapeType
+}
+
+func NewShapeQueue() *ShapeQueue {
+	sq := &ShapeQueue{
+		shapes: []ShapeType{},
+	}
+	sq.Generate()
+	return sq
+}
+
+func (sq *ShapeQueue) Generate() {
+	types := []ShapeType{
+		SHAPE_I,
+		SHAPE_J,
+		SHAPE_L,
+		SHAPE_O,
+		SHAPE_S,
+		SHAPE_T,
+		SHAPE_Z,
+	}
+	rand.Shuffle(len(types), func(i int, j int) {
+		types[i], types[j] = types[j], types[i]
+	})
+
+	sq.shapes = append(sq.shapes, types...)
+}
+
+func (sq *ShapeQueue) Next() Shape {
+	if len(sq.shapes) < 1 {
+		sq.Generate()
+	}
+	t := sq.shapes[0]
+	sq.shapes = sq.shapes[1:]
+	return NewShape(t)
+}