From f0e715fd3fad342c785a5b4a8637cedfaccb8731 Mon Sep 17 00:00:00 2001
From: Freya Murphy <freya@freyacat.org>
Date: Wed, 19 Nov 2025 22:20:56 -0500
Subject: dungeon: implement items

---
 dungeon/src/map.rs | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'dungeon/src/map.rs')

diff --git a/dungeon/src/map.rs b/dungeon/src/map.rs
index 0d05b73..7403e31 100644
--- a/dungeon/src/map.rs
+++ b/dungeon/src/map.rs
@@ -53,7 +53,11 @@ impl Tile {
 		matches!(self, Self::Room | Self::Hallway | Self::Stairs)
 	}
 
-	// Index by u16
+	/// Returns if the tile is blast resistant
+	#[must_use]
+	pub const fn blast_resistant(self) -> bool {
+		matches!(self, Self::Stairs)
+	}
 }
 impl Display for Tile {
 	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
@@ -164,6 +168,26 @@ impl Floor {
 			break pos;
 		}
 	}
+
+	/// Blows up a set number of tiles with a given radius
+	pub fn explode(&mut self, center_pos: Pos, radius: i16) {
+		let tiles_mut = self.tiles_mut();
+		for x_off in -radius..=radius {
+			for y_off in -radius..=radius {
+				let Some(x) = center_pos.x().checked_add_signed(x_off) else {
+					continue;
+				};
+				let Some(y) = center_pos.y().checked_add_signed(y_off) else {
+					continue;
+				};
+				let Some(pos) = Pos::new(x, y) else { continue };
+				if pos.is_border() || tiles_mut[pos.idx()].blast_resistant() {
+					continue;
+				}
+				tiles_mut[pos.idx()] = Tile::Room;
+			}
+		}
+	}
 }
 impl Display for Floor {
 	/// Display the floor as a string for debugging
-- 
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