item module

src/item.rs

@@ -0,0 +1,68 @@
+use crate::{AnimationFrames, Image, mocks};
+
+#[derive(Debug, Eq, PartialEq)]
+pub struct Item {
+    pub(crate) id: String,
+    pub(crate) animation_frames: Vec<Image>,
+    pub(crate) name: Option<String>,
+    pub(crate) dialogue: Option<String>, // dialogue id
+}
+
+impl From<String> for Item {
+    fn from(string: String) -> Item {
+        let mut lines: Vec<&str> = string.lines().collect();
+
+        let id = lines[0].replace("ITM ", "");
+        let mut name = None;
+        let mut dialogue = None;
+
+        for _ in 0..2 {
+            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("DLG") {
+                dialogue = Some(last_line.replace("DLG ", "").to_string());
+            } else {
+                lines.push(last_line);
+                break;
+            }
+        }
+
+        // todo dedupe
+        let animation_frames = lines[1..].join("");
+        let animation_frames: Vec<&str> = animation_frames.split("\n>\n").collect();
+        let animation_frames: Vec<Image> = animation_frames.iter().map(|&frame| {
+            Image::from(frame.to_string())
+        }).collect();
+
+        Item { id, name, animation_frames, dialogue }
+    }
+}
+
+impl ToString for Item {
+    #[inline]
+    fn to_string(&self) -> String {
+        format!(
+            "ITM {}\n{}{}{}",
+            self.id,
+            self.animation_frames.to_string(),
+            if self.name.is_some() { format!("\nNAME {}", self.name.as_ref().unwrap()) } else { "".to_string() },
+            if self.dialogue.is_some() { format!("\nDLG {}", self.dialogue.as_ref().unwrap()) } else { "".to_string() },
+        )
+    }
+}
+
+#[test]
+fn test_item_from_string() {
+    let output = Item::from(include_str!("../test/resources/item").to_string());
+    let expected = mocks::item();
+    assert_eq!(output, expected);
+}
+
+#[test]
+fn test_item_to_string() {
+    let output = mocks::item().to_string();
+    let expected = include_str!("../test/resources/item").to_string();
+    assert_eq!(output, expected);
+}