From e86625bbc852fdc7b18f6cdb4394cfeb5ee7b7c1 Mon Sep 17 00:00:00 2001
From: Max Bradbury <max@tinybird.info>
Date: Mon, 6 Apr 2020 13:21:59 +0100
Subject: [PATCH] exit functions; ending and room stub functions

---
 README.md   |  2 ++
 src/main.rs | 84 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)

diff --git a/README.md b/README.md
index 11e2c3b..01613b1 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,8 @@ a library for parsing Bitsy game data.
 * sprite to
 * item from
 * item to
+* exit from
+* exit to
 
 ## todo
 
diff --git a/src/main.rs b/src/main.rs
index abb4255..9033fa0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -569,6 +569,90 @@ fn test_item_to_string() {
     assert_eq!(output, expected);
 }
 
+fn exit_from_string(string: String) -> Exit {
+    // e.g. "4 3,3"
+    let room_position: Vec<&str> = string.split(' ').collect();
+    let room = room_position[0].to_string();
+    let position = position_from_string(room_position[1].to_string());
+
+    Exit { room, position }
+}
+
+#[test]
+fn test_exit_from_string() {
+    assert_eq!(
+        exit_from_string("a 12,13".to_string()),
+        Exit { room: "a".to_string(), position: Position { x: 12, y: 13}}
+    );
+}
+
+fn exit_to_string(exit: Exit) -> String {
+    format!("{} {}", exit.room, position_to_string(exit.position))
+}
+
+#[test]
+fn test_exit_to_string() {
+    assert_eq!(
+        exit_to_string(Exit { room: "8".to_string(), position: Position { x: 5, y: 6 }}),
+        "8 5,6".to_string()
+    );
+}
+
+fn ending_from_string(string: String) -> Ending {
+    Ending { contents: "".to_string() }
+}
+
+fn ending_to_string(ending: Ending) -> String {
+    "".to_string()
+}
+
+fn room_from_string(string: String) -> Room {
+    // todo handle room_format?
+    let mut lines: Vec<&str> = string.split("\n").collect();
+    let id = lines[0].replace("ROOM ", "");
+    let mut name = None;
+    let mut palette = "0".to_string();
+    let mut items: HashMap<Position, String> = HashMap::new();
+    let exits: HashMap<Position, Exit> = HashMap::new();
+    let endings: HashMap<Position, Ending> = HashMap::new();
+
+    loop {
+        let last_line = lines.pop().unwrap();
+
+        if last_line.starts_with("NAME") {
+            name = Some(last_line.replace("NAME ", "").to_string());
+        } else if last_line.starts_with("PAL") {
+            palette = last_line.replace("PAL ", "").to_string();
+        } else if last_line.starts_with("ITM") {
+            let last_line = last_line.replace("ITM ", "");
+            let item_pos: Vec<&str> = last_line.split(' ').collect();
+            let item_id = item_pos[0];
+            let pos = item_pos[1];
+
+            items.insert(
+                position_from_string(pos.to_string()),
+                item_id.to_string()
+            );
+        } else if last_line.starts_with("EXT") {
+
+        } else if last_line.starts_with("END") {
+
+        } else {
+            lines.push(last_line); break;
+        }
+    }
+
+    Room {
+        id,
+        palette,
+        name,
+        tiles: vec![],
+        items: Default::default(),
+        exits: Default::default(),
+        endings: Default::default()
+    }
+}
+
 // fn game_from_string(game: String ) -> Game {
 //     // probably needs to split the game data into different segments starting from the end
 //     // e.g. VAR... then END... then DLG...