添加辅助函数

utils/g2d/g2d.go

@@ -57,6 +57,20 @@ func PositionToInt(width, x, y int) int {
 	return y*width + x
 }
 
+// PositionToIntWithArray 将坐标转换为数字
+func PositionToIntWithArray(width int, xy [2]int) int {
+	return PositionToInt(width, xy[0], xy[1])
+}
+
+// PositionsToIntWithArray 将一组坐标转换为数字
+func PositionsToIntWithArray(width int, xys ...[2]int) []int {
+	var result = make([]int, len(xys), len(xys))
+	for i := 0; i < len(xys); i++ {
+		result[i] = PositionToIntWithArray(width, xys[1])
+	}
+	return result
+}
+
 // PositionIntToXY 通过宽度将一个二维数组的顺序位置转换为xy坐标
 func PositionIntToXY(width, pos int) (x, y int) {
 	x = pos % width