From dd00686de0a5918e9306400cf05be206b2c600c6 Mon Sep 17 00:00:00 2001
From: Max Bradbury <max@tinybird.info>
Date: Tue, 28 Apr 2020 08:34:35 +0100
Subject: [PATCH] add transition and dialogue for exits (7.0)

---
 README.md   |  1 -
 src/lib.rs  |  2 ++
 src/mock.rs |  2 ++
 src/room.rs | 21 ++++++++++++++++++---
 4 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 8758f99..6a45862 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,6 @@ some more practical uses would be things like:
 ## todo
 
 * test for bitsy 7.0 and implement new features
-    * add dialogues to exits
     * titles can have multiple lines of dialog
     * dialogue names
 * implement Result return types on ::from functions so we can handle errors
diff --git a/src/lib.rs b/src/lib.rs
index d7baffd..533f421 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -46,6 +46,8 @@ pub struct Instance {
 pub struct ExitInstance {
     position: Position,
     exit: Exit,
+    transition: Option<Transition>,
+    dialogue_id: Option<String>,
 }
 
 pub trait AnimationFrames {
diff --git a/src/mock.rs b/src/mock.rs
index 005bac1..ae0b5a5 100644
--- a/src/mock.rs
+++ b/src/mock.rs
@@ -396,6 +396,8 @@ pub fn room() -> Room {
                 position: Position { x: 10, y: 6 },
                 effect: Transition::None,
             },
+            transition: None,
+            dialogue_id: None
         }],
         endings: vec![Instance {
             position: Position { x: 8, y: 7 },
diff --git a/src/room.rs b/src/room.rs
index 539e18d..892e947 100644
--- a/src/room.rs
+++ b/src/room.rs
@@ -1,5 +1,6 @@
 use crate::{from_base36, optional_data_line, Exit, ExitInstance, Instance, Position, ToBase36};
 use crate::game::{RoomType, RoomFormat};
+use crate::exit::Transition;
 
 #[derive(Debug, Eq, PartialEq)]
 pub struct Room {
@@ -76,8 +77,17 @@ impl From<String> for Room {
                 let parts: Vec<&str> = last_line.split(' ').collect();
                 let position = Position::from(parts[0].to_string()).unwrap();
                 let exit = Exit::from(format!("{} {}", parts[1], parts[2]));
-
-                exits.push(ExitInstance { position, exit });
+                let mut transition = None;
+                let mut dialogue_id = None;
+                let chunks = parts[3..].chunks(2);
+                for chunk in chunks {
+                    if chunk[0] == "FX" {
+                        transition = Some(Transition::from(chunk[1]));
+                    } else if chunk[0] == "DLG" {
+                        dialogue_id = Some(chunk[1].to_string());
+                    }
+                }
+                exits.push(ExitInstance { position, exit, transition, dialogue_id });
             } else if last_line.starts_with("END") {
                 let last_line = last_line.replace("END ", "");
                 let ending_position: Vec<&str> = last_line.split(' ').collect();
@@ -163,9 +173,14 @@ impl Room {
 
         for instance in &self.exits {
             exits.push_str(&format!(
-                "\nEXT {} {}",
+                "\nEXT {} {}{}{}{}",
                 instance.position.to_string(),
                 instance.exit.to_string(),
+                if instance.transition.is_some() {
+                    instance.transition.as_ref().unwrap().to_string()
+                } else {"".to_string()},
+                if instance.dialogue_id.is_some() {" DLG "} else {""},
+                instance.dialogue_id.as_ref().unwrap_or(&"".to_string()),
             ));
         }