feat: add champions

Select champions using the `--champion` flag. Valid values are `ranged`
and `meele` (default).

3 files changed, 55 insertions, 2 deletions

diff --git a/src/shared/champion.rs b/src/shared/champion.rs
new file mode 100644
index 0000000..ec27c62
--- /dev/null
+++ b/src/shared/champion.rs
@@ -0,0 +1,39 @@
+use crate::shared::*;
+use std::str::FromStr;
+
+#[derive(Component, Message, Clone, Copy, Serialize, Deserialize, PartialEq, Debug)]
+pub enum Champion {
+    Meele,
+    Ranged,
+}
+
+impl Default for Champion {
+    fn default() -> Champion {
+        Champion::Meele
+    }
+}
+
+impl FromStr for Champion {
+    type Err = String;
+
+    fn from_str(s: &str) -> Result<Champion, String> {
+        match s {
+            "ranged" => Ok(Champion::Ranged),
+            "meele" => Ok(Champion::Meele),
+            _ => Err(format!("unknown champion: {}", s)),
+        }
+    }
+}
+
+pub struct Stats {
+    pub attack_range: f32,
+}
+
+impl Stats {
+    pub fn from_champion(champion: Champion) -> Self {
+        match champion {
+            Champion::Meele => Stats { attack_range: 25. },
+            Champion::Ranged => Stats { attack_range: 60. },
+        }
+    }
+}
diff --git a/src/shared/projectile.rs b/src/shared/projectile.rs
index c42173a..2e9c6c3 100644
--- a/src/shared/projectile.rs
+++ b/src/shared/projectile.rs
@@ -1,7 +1,5 @@
 use crate::shared::*;
 
-pub const ATTACK_RANGE: f32 = 60.;
-
 #[derive(Bundle)]
 pub struct ProjectileBundle {
     pub projectile: Projectile,
diff --git a/src/shared/stats.rs b/src/shared/stats.rs
new file mode 100644
index 0000000..278a19f
--- /dev/null
+++ b/src/shared/stats.rs
@@ -0,0 +1,16 @@
+use crate::shared::champion::*;
+use crate::shared::*;
+
+#[derive(Component, Message, Clone, Serialize, Deserialize, PartialEq)]
+pub struct Stats {
+    pub attack_range: f32,
+}
+
+impl Stats {
+    pub fn from_champion(champion: Champion) -> Self {
+        match champion {
+            Champion::Meele => Stats { attack_range: 35. },
+            Champion::Ranged => Stats { attack_range: 60. },
+        }
+    }
+}