More camera refactor

src/Dodge/Base/Coordinate.hs

@@ -21,13 +21,11 @@ import Control.Lens
  - These have to be scaled according to the size of the window to get actual screen positions.
  - This allows for line thicknesses etc to correspond to pixel sizes.
 -}
-worldPosToScreen :: World -> Point2 -> Point2
-worldPosToScreen w =
+worldPosToScreen :: CamPos -> Point2 -> Point2
+worldPosToScreen cam =
     rotateV (negate $ cam ^. camRot)
         . ((cam ^. camZoom) *.*)
         . (-.- (cam ^. camCenter))
-  where
-    cam = w ^. cWorld . lWorld . camPos
 
 {- | Transform coordinates from the map position to screen
 coordinates.

src/Dodge/Render/InfoBox.hs

@@ -1,5 +1,6 @@
 module Dodge.Render.InfoBox where
 
+import Control.Lens
 import Dodge.Base
 import Dodge.Data.Universe
 import Dodge.Render.Connectors
@@ -10,11 +11,12 @@ import Picture
 renderInfoListAt :: Float -> Float -> Configuration -> World -> (Point2, [String]) -> Picture
 renderInfoListAt x y cfig w (p, ss) =
     renderListAt x y cfig (zip ss (repeat white))
-        <> winScale cfig (color white $ lConnect (V2 (x - hw) (hh -25 - y)) (worldPosToScreen w p))
+        <> winScale cfig (color white $ lConnect (V2 (x - hw) (hh -25 - y)) (worldPosToScreen cam p))
         <> listCursorNSW x y cfig 0 white 19 (length ss)
   where
     hw = halfWidth cfig
     hh = halfHeight cfig
+    cam = w ^. cWorld . lWorld . camPos
 
 renderInfoListsAt :: Float -> Float -> Configuration -> World -> [(Point2, [String])] -> Picture
 renderInfoListsAt x y cfig w =

src/Dodge/Render/Label.hs

@@ -7,11 +7,11 @@ import Picture
 import Dodge.Data.Universe
 import Geometry
 
-drawLabCrossCol :: Configuration -> World -> Color -> Point2 -> Picture
+drawLabCrossCol :: Configuration -> CamPos -> Color -> Point2 -> Picture
 drawLabCrossCol cfig w col p = drawCrossCol col p
     <> drawPointLabel cfig w p
 
-drawPointLabel :: Configuration -> World -> Point2 -> Picture 
+drawPointLabel :: Configuration -> CamPos -> Point2 -> Picture 
 drawPointLabel cfig w p =
     setLayer FixedCoordLayer . winScale cfig
         . uncurryV translate p'

src/Dodge/Render/ShapePicture.hs

@@ -192,9 +192,10 @@ drawCollisionTest cfig w =
 --    <> foldMap (drawZoneCol green crZoneSize) (zoneOfSeg' crZoneSize a b)
     <> foldMap (drawZoneCol green crZoneSize . zoneOfPoint crZoneSize) (xIntercepts crZoneSize a b)
     <> foldMap (drawZoneCol yellow crZoneSize . zoneOfPoint crZoneSize) (yIntercepts' crZoneSize a b)
-    <> foldMap (drawLabCrossCol cfig w blue) (xIntercepts crZoneSize a b)
+    <> foldMap (drawLabCrossCol cfig cam blue) (xIntercepts crZoneSize a b)
   where
     (a, b) = _lrLine w
+    cam = w ^. cWorld . lWorld . camPos
 
 drawCreatureDisplayTexts :: World -> Picture
 drawCreatureDisplayTexts w = foldMap (creatureDisplayText w) (w ^. cWorld . lWorld . creatures)
@@ -376,7 +377,7 @@ drawMousePosition cfig w =
         . text
         $ shortPoint2 mwp
   where
-    p = worldPosToScreen w mwp
+    p = worldPosToScreen (w ^. cWorld . lWorld . camPos) mwp
     mwp = mouseWorldPos w
 
 drawWlIDs :: Configuration -> World -> Picture
@@ -391,7 +392,7 @@ drawWlIDs cfig w = setLayer FixedCoordLayer $ foldMap f (w ^. cWorld . lWorld .
                 . text
                 $ show $ _wlID wl
       where
-        p = worldPosToScreen w $ 0.5 *.* uncurry (+.+) (_wlLine wl)
+        p = worldPosToScreen (w ^. cWorld . lWorld . camPos) $ 0.5 *.* uncurry (+.+) (_wlLine wl)
 
 edgeToPic :: [Point2] -> PathEdge -> Picture
 edgeToPic poly pe

src/Dodge/Targeting/Draw.hs

@@ -22,9 +22,9 @@ targetSimpleDraw = targetDraw $ const activeTargetCursorPic
 targetDistanceDraw :: Item -> Creature -> Configuration -> World -> Picture
 targetDistanceDraw itm _ cfig w = fromMaybe mempty $ do
     p <- itm ^? itTargeting . tgPos . _Just
-    let p1 = worldPosToScreen w p
+    let p1 = worldPosToScreen cam p
         mwp = mouseWorldPos w
-        p2 = worldPosToScreen w mwp
+        p2 = worldPosToScreen cam mwp
         thecol = if dist p mwp > 100 then red else white
     return $
         winScale cfig $
@@ -32,6 +32,8 @@ targetDistanceDraw itm _ cfig w = fromMaybe mempty $ do
                 color thecol $
                     line [p1, p2]
                         <> transMidLine p1 p2 (scale 0.1 0.1 . text . shortShow $ dist p mwp)
+  where
+    cam = w ^. cWorld . lWorld . camPos
 
 targetDraw :: (Item -> Picture) -> Item -> Creature -> Configuration -> World -> Picture
 targetDraw f it _ cfig w = fromMaybe mempty $ do
@@ -40,8 +42,10 @@ targetDraw f it _ cfig w = fromMaybe mempty $ do
         winScale cfig $
             setLayer FixedCoordLayer $
                 color white $
-                    uncurryV translate (worldPosToScreen w p) $
+                    uncurryV translate (worldPosToScreen cam p) $
                         f it
+  where
+    cam = w ^. cWorld . lWorld . camPos
 
 activeTargetCursorPic :: Picture
 activeTargetCursorPic =