diff options
Diffstat (limited to 'Spear/Math/Vector/Vector3.hs')
| -rw-r--r-- | Spear/Math/Vector/Vector3.hs | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/Spear/Math/Vector/Vector3.hs b/Spear/Math/Vector/Vector3.hs index c19b7c7..eeab486 100644 --- a/Spear/Math/Vector/Vector3.hs +++ b/Spear/Math/Vector/Vector3.hs | |||
| @@ -69,29 +69,40 @@ instance Ord Vector3 where | |||
| 69 | 69 | ||
| 70 | 70 | ||
| 71 | instance VectorClass Vector3 where | 71 | instance VectorClass Vector3 where |
| 72 | {-# INLINABLE fromList #-} | ||
| 72 | fromList (ax:ay:az:_) = Vector3 ax ay az | 73 | fromList (ax:ay:az:_) = Vector3 ax ay az |
| 73 | 74 | ||
| 75 | {-# INLINABLE x #-} | ||
| 74 | x (Vector3 ax _ _ ) = ax | 76 | x (Vector3 ax _ _ ) = ax |
| 75 | 77 | ||
| 78 | {-# INLINABLE y #-} | ||
| 76 | y (Vector3 _ ay _ ) = ay | 79 | y (Vector3 _ ay _ ) = ay |
| 77 | |||
| 78 | z (Vector3 _ _ az) = az | ||
| 79 | 80 | ||
| 81 | {-# INLINABLE z #-} | ||
| 82 | z (Vector3 _ _ az) = az | ||
| 83 | |||
| 84 | {-# INLINABLE (!) #-} | ||
| 80 | (Vector3 ax _ _) ! 0 = ax | 85 | (Vector3 ax _ _) ! 0 = ax |
| 81 | (Vector3 _ ay _) ! 1 = ay | 86 | (Vector3 _ ay _) ! 1 = ay |
| 82 | (Vector3 _ _ az) ! 2 = az | 87 | (Vector3 _ _ az) ! 2 = az |
| 83 | _ ! _ = 0 | 88 | _ ! _ = 0 |
| 84 | 89 | ||
| 90 | {-# INLINABLE dot #-} | ||
| 85 | Vector3 ax ay az `dot` Vector3 bx by bz = ax*bx + ay*by + az*bz | 91 | Vector3 ax ay az `dot` Vector3 bx by bz = ax*bx + ay*by + az*bz |
| 86 | 92 | ||
| 93 | {-# INLINABLE normSq #-} | ||
| 87 | normSq (Vector3 ax ay az) = ax*ax + ay*ay + az*az | 94 | normSq (Vector3 ax ay az) = ax*ax + ay*ay + az*az |
| 88 | 95 | ||
| 96 | {-# INLINABLE norm #-} | ||
| 89 | norm = sqrt . normSq | 97 | norm = sqrt . normSq |
| 90 | 98 | ||
| 99 | {-# INLINABLE scale #-} | ||
| 91 | scale s (Vector3 ax ay az) = Vector3 (s*ax) (s*ay) (s*az) | 100 | scale s (Vector3 ax ay az) = Vector3 (s*ax) (s*ay) (s*az) |
| 92 | 101 | ||
| 102 | {-# INLINABLE neg #-} | ||
| 93 | neg (Vector3 ax ay az) = Vector3 (-ax) (-ay) (-az) | 103 | neg (Vector3 ax ay az) = Vector3 (-ax) (-ay) (-az) |
| 94 | 104 | ||
| 105 | {-# INLINABLE normalise #-} | ||
| 95 | normalise v = | 106 | normalise v = |
| 96 | let n' = norm v | 107 | let n' = norm v |
| 97 | n = if n' == 0 then 1 else n' | 108 | n = if n' == 0 then 1 else n' |
