# 01: Mehrere Ziele behalten

**What to build:** The person types Koordinaten as Gitter, Rechtswert, and Hochwert. Each valid Koordinate adds a Ziel instead of replacing the previous one. The Ziele are red points, listed newest first, and each row shows that Koordinate. When a Standort is known, the Entfernung to that Ziel follows the Koordinate, in metres below 1000 m and in kilometres from 1000 m, and it updates as the Standort moves. Adding a Ziel, or tapping its row, centers it at 1:25,000. Auf Ziel is gone. Auf Standort stays. Löschen on a row removes that Ziel and does not move the view. The list remains on the device until each Ziel is deleted. Deleting the whole Cache leaves the Ziele in place.

**Blocked by:** None (can start immediately).

**Status:** ready-for-agent

The session contract in the spec is the seam. This ticket owns `enterKoordinate`, `deleteZiel`, `centerOnZiel`, `ziele` on the snapshot, Entfernung per Ziel, and remembered `ziele`. `deleteCache` already exists and must leave those Ziele in place. A repeated Koordinate uses the notice `Diese Koordinate ist schon ein Ziel.`

- [x] The Ziele section offers Gitter, Rechtswert, and Hochwert, and Gitter starts as `32U MA`.
- [x] A valid Koordinate adds a red Ziel. A second Koordinate adds another. The newest stands at the top of the list.
- [x] Each row shows that Ziel's Koordinate. When a Standort is known, the Entfernung follows it, in metres below 1000 m and in kilometres from 1000 m, and it updates as the Standort moves. With no Standort, the row shows only the Koordinate.
- [x] Adding a Ziel centers the view on it at 1:25,000, even while its Kacheln are blank. Tapping the row centers that Ziel the same way.
- [x] Auf Standort remains. There is no Auf Ziel control.
- [x] Löschen on a row removes that Ziel without asking and does not move the view.
- [x] The same Koordinate cannot be added twice. A repeat is explained in German and leaves the list and the view unchanged.
- [x] An invalid Koordinate, or one that no Blatt covers, is explained in German and leaves the list and the view unchanged.
- [x] The typed Gitter, Rechtswert, and Hochwert stay visible after a successful entry.
- [x] Leaving or reloading the page keeps the Ziele. The Standort is not stored.
- [x] A late first Standort, after a pan or an added Ziel, moves only the blue mark.
- [x] Deleting the whole Cache leaves the Ziele in place.

## Comments

The screen offers the Koordinate fields in Ziele, lists every Ziel newest first, and centers the one just added or the row that was tapped. A rejected Koordinate changes nothing. A new session keeps the Ziele and drops the Standort.