1 files changed, 29 insertions, 0 deletions
diff --git a/src/EnemyState.elm b/src/EnemyState.elm
new file mode 100644
index 0000000..81766bf
--- /dev/null
+++ b/src/EnemyState.elm
@@ -0,0 +1,29 @@
+module EnemyState where
+
+import Enemy (..)
+import Player (..)
+import Geometry (distance)
+
+type EnemyState =
+  { enemies : [Enemy]
+  , spawn : Float
+  , lastSpawn : Float
+  }
+
+initEnemyState : EnemyState
+initEnemyState =
+  let spawn = 200
+  in  { enemies = []
+      , spawn = spawn
+      , lastSpawn = -spawn
+      }
+
+playerEnemyCollision : Float -> Player -> Enemy -> Bool
+playerEnemyCollision time player enemy =
+  let enemyPos = enemyMove enemy time
+  in  (distance enemyPos player.pos) < enemySize + playerSize
+
+playerEnemiesCollision : Float -> Player -> [Enemy] -> Bool
+playerEnemiesCollision time player enemies =
+  let collision = playerEnemyCollision time player
+  in  length (filter collision enemies) > 0