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Diffstat (limited to 'src/Xanthous/Data/EntityMap/Graphics.hs')
| -rw-r--r-- | src/Xanthous/Data/EntityMap/Graphics.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/Xanthous/Data/EntityMap/Graphics.hs b/src/Xanthous/Data/EntityMap/Graphics.hs index 3124c6a334..ace5ae49e8 100644 --- a/src/Xanthous/Data/EntityMap/Graphics.hs +++ b/src/Xanthous/Data/EntityMap/Graphics.hs @@ -4,6 +4,7 @@ module Xanthous.Data.EntityMap.Graphics ( visiblePositions , visibleEntities , linesOfSight + , canSee ) where -------------------------------------------------------------------------------- import Xanthous.Prelude hiding (lines) @@ -49,3 +50,7 @@ visibleEntities pos visionRadius . map (\(p, es) -> over _2 (Positioned p) <$> es) . fold . linesOfSight pos visionRadius + +canSee :: Entity e => (e -> Bool) -> Position -> Word -> EntityMap e -> Bool +canSee match pos radius = any match . visibleEntities pos radius +-- ^ this might be optimizable |