47 lines
2.1 KiB
Haskell
47 lines
2.1 KiB
Haskell
module Map.StaticMaps
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where
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import Map.Types
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import Data.Array
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-- general 2D-Gaussian
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gauss2Dgeneral :: Floating q =>
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q -- ^ Amplitude
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-> q -- ^ Origin on X-Achsis
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-> q -- ^ Origin on Y-Achsis
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-> q -- ^ Sigma on X
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-> q -- ^ Sigma on Y
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-> q -- ^ Coordinate in question on X
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-> q -- ^ Coordinate in question on Y
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-> q -- ^ elevation on coordinate in question
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gauss2Dgeneral amp x0 y0 sX sY x y = amp * exp(-(((x-x0)^(2 :: Integer)/(2 * sX^(2 :: Integer)))+((y-y0)^(2 :: Integer)/(2 * sY^(2 :: Integer)))))
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gauss2D :: Floating q => q -> q -> q
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gauss2D x y = gauss2Dgeneral 15 100.0 100.0 15.0 15.0 x y
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-- 2D Manhattan distance
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mnh2D :: (Int,Int) -> (Int,Int) -> Int
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mnh2D (a,b) (c,d) = abs (a-c) + abs (b-d)
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-- entirely empty map, only uses the minimal constructor
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mapEmpty :: PlayMap
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mapEmpty = array ((0,0), (200,200)) [((a,b), (Minimal (a,b))) | a <- [0..200], b <- [0..200]]
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-- TODO: Stripify
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mapCenterMountain :: PlayMap
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mapCenterMountain = array ((0,0),(200,200)) nodes
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where
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nodes = water ++ beach ++ grass ++ hill ++ mountain
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water = [((a,b), (Full (a,b) 0.0 Ocean BNothing NoPlayer NoPath Plain [])) | a <- [0..200], b <- [0..200], (m2d (a,b)) > 95]
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beach = [((a,b), (Full (a,b) (g2d a b) Beach BNothing NoPlayer NoPath Plain [])) | a <- [0..200], b <- [0..200], (m2d (a,b)) <= 95, (m2d (a,b)) > 75]
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grass = [((a,b), (Full (a,b) (g2d a b) Grass BNothing NoPlayer NoPath Plain [])) | a <- [0..200], b <- [0..200], (m2d (a,b)) <= 75, (m2d (a,b)) > 25]
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hill = [((a,b), (Full (a,b) (g2d a b) Hill BNothing NoPlayer NoPath Plain [])) | a <- [0..200], b <- [0..200], (m2d (a,b)) <= 25, (m2d (a,b)) > 10]
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mountain = [((a,b), (Full (a,b) (g2d a b) Mountain BNothing NoPlayer NoPath Plain [])) | a <- [0..200], b <- [0..200], (m2d (a,b)) <= 10]
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g2d :: Int -> Int -> Float
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g2d x y = gauss2D (fromIntegral x) (fromIntegral y)
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m2d :: (Int,Int) -> Int
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m2d (x,y) = mnh2D (x,y) (100,100)
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