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-rw-r--r--Spear/Math/Camera.hs24
-rw-r--r--Spear/Math/Spatial3.hs89
-rw-r--r--Spear/Scene/Light.hs55
3 files changed, 53 insertions, 115 deletions
diff --git a/Spear/Math/Camera.hs b/Spear/Math/Camera.hs
index 86d6f9e..e7062ab 100644
--- a/Spear/Math/Camera.hs
+++ b/Spear/Math/Camera.hs
@@ -15,17 +15,19 @@ module Spear.Math.Camera
15) 15)
16where 16where
17 17
18
19import qualified Spear.Math.Matrix4 as M 18import qualified Spear.Math.Matrix4 as M
20import Spear.Math.Spatial3 19import Spear.Math.Spatial3
21import Spear.Math.Vector 20import Spear.Math.Vector
22 21
23
24data Camera = Camera 22data Camera = Camera
25 { projection :: M.Matrix4 -- ^ Get the camera's projection. 23 { projection :: M.Matrix4 -- ^ Get the camera's projection.
26 , spatial :: Obj3 24 , spatial :: Obj3
27 } 25 }
28 26
27instance Spatial3 Camera where
28 getObj3 = spatial
29 setObj3 cam o = cam { spatial = o }
30
29type Fovy = Float 31type Fovy = Float
30type Aspect = Float 32type Aspect = Float
31type Near = Float 33type Near = Float
@@ -71,21 +73,3 @@ ortho l r b t n f right up fwd pos =
71 { projection = M.ortho l r b t n f 73 { projection = M.ortho l r b t n f
72 , spatial = fromVectors right up fwd pos 74 , spatial = fromVectors right up fwd pos
73 } 75 }
74
75
76instance Spatial3 Camera where
77 move v cam = cam { spatial = move v $ spatial cam }
78 moveFwd s cam = cam { spatial = moveFwd s $ spatial cam }
79 moveBack s cam = cam { spatial = moveBack s $ spatial cam }
80 strafeLeft s cam = cam { spatial = strafeLeft s $ spatial cam }
81 strafeRight s cam = cam { spatial = strafeRight s $ spatial cam }
82 pitch a cam = cam { spatial = pitch a $ spatial cam }
83 yaw a cam = cam { spatial = yaw a $ spatial cam }
84 roll a cam = cam { spatial = roll a $ spatial cam }
85 pos cam = pos $ spatial cam
86 fwd cam = fwd $ spatial cam
87 up cam = up $ spatial cam
88 right cam = right $ spatial cam
89 transform cam = transform $ spatial cam
90 setTransform m cam = cam { spatial = setTransform m $ spatial cam }
91 setPos p cam = cam { spatial = setPos p $ spatial cam }
diff --git a/Spear/Math/Spatial3.hs b/Spear/Math/Spatial3.hs
index 2bc772e..7d0420a 100644
--- a/Spear/Math/Spatial3.hs
+++ b/Spear/Math/Spatial3.hs
@@ -11,50 +11,99 @@ import Spear.Math.Vector
11import Spear.Math.Matrix4 as M hiding (scale) 11import Spear.Math.Matrix4 as M hiding (scale)
12 12
13class Spatial3 s where 13class Spatial3 s where
14 -- | Gets the spatial's internal Obj3.
15 getObj3 :: s -> Obj3
16
17 -- | Set the spatial's internal Obj3.
18 setObj3 :: s -> Obj3 -> s
19
14 -- | Move the spatial. 20 -- | Move the spatial.
15 move :: Vector3 -> s -> s 21 move :: Vector3 -> s -> s
22 move d s = let o = getObj3 s in setObj3 s $ o { p = p o + d }
16 23
17 -- | Move the spatial forwards. 24 -- | Move the spatial forwards.
18 moveFwd :: Float -> s -> s 25 moveFwd :: Float -> s -> s
26 moveFwd a s = let o = getObj3 s in setObj3 s $ o { p = p o + scale a (f o) }
19 27
20 -- | Move the spatial backwards. 28 -- | Move the spatial backwards.
21 moveBack :: Float -> s -> s 29 moveBack :: Float -> s -> s
30 moveBack a s = let o = getObj3 s in setObj3 s $ o { p = p o + scale (-a) (f o) }
22 31
23 -- | Make the spatial strafe left. 32 -- | Make the spatial strafe left.
24 strafeLeft :: Float -> s -> s 33 strafeLeft :: Float -> s -> s
34 strafeLeft a s = let o = getObj3 s in setObj3 s $ o { p = p o + scale (-a) (r o) }
25 35
26 -- | Make the spatial Strafe right. 36 -- | Make the spatial Strafe right.
27 strafeRight :: Float -> s -> s 37 strafeRight :: Float -> s -> s
38 strafeRight a s = let o = getObj3 s in setObj3 s $ o { p = p o + scale a (r o) }
28 39
29 -- | Rotate the spatial about its local X axis. 40 -- | Rotate the spatial about its local X axis.
30 pitch :: Float -> s -> s 41 pitch :: Float -> s -> s
42 pitch a s =
43 let o = getObj3 s
44 a' = toRAD a
45 sa = sin a'
46 ca = cos a'
47 f' = normalise $ scale ca (f o) + scale sa (u o)
48 u' = normalise $ r o `cross` f'
49 in setObj3 s $ o { u = u', f = f' }
31 50
32 -- | Rotate the spatial about its local Y axis. 51 -- | Rotate the spatial about its local Y axis.
33 yaw :: Float -> s -> s 52 yaw :: Float -> s -> s
53 yaw a s =
54 let o = getObj3 s
55 a' = toRAD a
56 sa = sin a'
57 ca = cos a'
58 r' = normalise $ scale ca (r o) + scale sa (f o)
59 f' = normalise $ u o `cross` r'
60 in setObj3 s $ o { r = r', f = f' }
34 61
35 -- | Rotate the spatial about its local Z axis. 62 -- | Rotate the spatial about its local Z axis.
36 roll :: Float -> s -> s 63 roll :: Float -> s -> s
64 roll a s =
65 let o = getObj3 s
66 a' = toRAD a
67 sa = sin a'
68 ca = cos a'
69 u' = normalise $ scale ca (u o) - scale sa (r o)
70 r' = normalise $ f o `cross` u'
71 in setObj3 s $ o { r = r', u = u' }
37 72
38 -- | Get the spatial's position. 73 -- | Get the spatial's position.
39 pos :: s -> Vector3 74 pos :: s -> Vector3
75 pos = p . getObj3
40 76
41 -- | Get the spatial's forward vector. 77 -- | Get the spatial's forward vector.
42 fwd :: s -> Vector3 78 fwd :: s -> Vector3
79 fwd = f . getObj3
43 80
44 -- | Get the spatial's up vector. 81 -- | Get the spatial's up vector.
45 up :: s -> Vector3 82 up :: s -> Vector3
83 up = u . getObj3
46 84
47 -- | Get the spatial's right vector. 85 -- | Get the spatial's right vector.
48 right :: s -> Vector3 86 right :: s -> Vector3
87 right = r . getObj3
49 88
50 -- | Get the spatial's transform. 89 -- | Get the spatial's transform.
51 transform :: s -> Matrix4 90 transform :: s -> Matrix4
91 transform s = let o = getObj3 s in M.transform (r o) (u o) (scale (-1) $ f o) (p o)
52 92
53 -- | Set the spatial's transform. 93 -- | Set the spatial's transform.
54 setTransform :: Matrix4 -> s -> s 94 setTransform :: Matrix4 -> s -> s
95 setTransform t s =
96 let o = Obj3
97 { r = M.right t
98 , u = M.up t
99 , f = scale (-1) $ M.forward t
100 , p = M.position t
101 }
102 in setObj3 s o
55 103
56 -- | Set the spatial's position. 104 -- | Set the spatial's position.
57 setPos :: Vector3 -> s -> s 105 setPos :: Vector3 -> s -> s
106 setPos pos s = setObj3 s $ (getObj3 s) { p = pos }
58 107
59 -- | Make the spatial look at the given point. 108 -- | Make the spatial look at the given point.
60 lookAt :: Vector3 -> s -> s 109 lookAt :: Vector3 -> s -> s
@@ -95,46 +144,6 @@ data Obj3 = Obj3
95 , p :: Vector3 144 , p :: Vector3
96 } deriving Show 145 } deriving Show
97 146
98instance Spatial3 Obj3 where
99 move d o = o { p = p o + d }
100 moveFwd s o = o { p = p o + scale (-s) (f o) }
101 moveBack s o = o { p = p o + scale s (f o) }
102 strafeLeft s o = o { p = p o + scale (-s) (r o) }
103 strafeRight s o = o { p = p o + scale s (r o) }
104 pitch a o =
105 let a' = toRAD a
106 sa = sin a'
107 ca = cos a'
108 r' = normalise $ scale ca (r o) + scale sa (f o)
109 f' = normalise $ r' `cross` u o
110 in o { r = r', f = f' }
111 yaw a o =
112 let a' = toRAD a
113 sa = sin a'
114 ca = cos a'
115 f' = normalise $ scale ca (f o) + scale sa (u o)
116 u' = normalise $ r o `cross` f'
117 in o { u = u', f = f' }
118 roll a o =
119 let a' = toRAD a
120 sa = sin a'
121 ca = cos a'
122 u' = normalise $ scale ca (u o) - scale sa (r o)
123 f' = normalise $ f o `cross` u'
124 in o { u = u', f = f' }
125 pos = p
126 fwd = f
127 up = u
128 right = r
129 transform o = M.transform (r o) (u o) (f o) (p o)
130 setTransform t o = Obj3
131 { r = M.right t
132 , u = M.up t
133 , f = M.forward t
134 , p = M.position t
135 }
136 setPos pos o = o { p = pos }
137
138fromVectors :: Right3 -> Up3 -> Forward3 -> Position3 -> Obj3 147fromVectors :: Right3 -> Up3 -> Forward3 -> Position3 -> Obj3
139fromVectors = Obj3 148fromVectors = Obj3
140 149
diff --git a/Spear/Scene/Light.hs b/Spear/Scene/Light.hs
index 5f43b19..f63b91d 100644
--- a/Spear/Scene/Light.hs
+++ b/Spear/Scene/Light.hs
@@ -29,58 +29,3 @@ data Light
29 , specular :: Vector3 29 , specular :: Vector3
30 , transform :: M.Matrix4 30 , transform :: M.Matrix4
31 } 31 }
32
33
34instance S.Spatial3 Light where
35 move _ l@DirectionalLight {} = l
36 move v l = l { transform = M.translv v * transform l}
37
38 moveFwd _ l@DirectionalLight {} = l
39 moveFwd f l = l { transform = M.translv (scale f $ S.fwd l) * transform l }
40
41 moveBack _ l@DirectionalLight {} = l
42 moveBack f l = l { transform = M.translv (scale (-f) $ S.fwd l) * transform l }
43
44 strafeLeft _ l@DirectionalLight {} = l
45 strafeLeft f l = l { transform = M.translv (scale (-f) $ S.right l) * transform l }
46
47 strafeRight _ l@DirectionalLight {} = l
48 strafeRight f l = l { transform = M.translv (scale f $ S.right l) * transform l }
49
50 pitch _ l@DirectionalLight {} = l
51 pitch a l = l { transform = transform l * M.axisAngle (S.right l) a }
52
53 yaw _ l@DirectionalLight {} = l
54 yaw a l = l { transform = transform l * M.axisAngle (S.up l) a }
55
56 roll _ l@DirectionalLight {} = l
57 roll a l = l { transform = transform l * M.axisAngle (S.fwd l) a }
58
59 pos l@DirectionalLight {} = vec3 0 0 0
60 pos l = M.position . transform $ l
61
62 fwd (DirectionalLight _ _ _ f) = f
63 fwd l = M.forward . transform $ l
64
65 up l@DirectionalLight {} = vec3 0 1 0
66 up l = M.up . transform $ l
67
68 right l@DirectionalLight {} = vec3 1 0 0
69 right l = M.right . transform $ l
70
71 transform (PointLight _ _ _ transf) = transf
72 transform (DirectionalLight _ _ _ fwd) =
73 let up' = vec3 0 1 0
74 right = up `cross` fwd
75 up = fwd `cross` right
76 in
77 M.transform up right fwd (vec3 0 0 0)
78 transform (SpotLight _ _ _ transf) = transf
79
80 setTransform _ l@DirectionalLight {} = l
81 setTransform t l = l { Spear.Scene.Light.transform = t }
82
83 setPos _ l@DirectionalLight {} = l
84 setPos pos l =
85 let t = Spear.Scene.Light.transform l
86 in l { transform = M.transform (M.right t) (M.up t) (M.forward t) pos }
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 21:34:44 +0000