208 lines
8.2 KiB
Haskell
208 lines
8.2 KiB
Haskell
module Dodge.Render.Picture
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where
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import Dodge.Data
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import Dodge.Base
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import Dodge.Render.HUD
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import Dodge.Render.MenuScreen
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import Geometry
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import Picture
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import Control.Lens
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import Data.Maybe
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import qualified Data.IntMap.Strict as IM
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worldPictures :: World -> Picture
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worldPictures w = pictures $ concat
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[ IM.elems $ _decorations w
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, map _pjPict . IM.elems $ _projectiles w
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, map drawItem . IM.elems $ _floorItems w
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, map crDraw . IM.elems $ _creatures w
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, map clDraw . IM.elems $ _clouds w
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, map btDraw (IM.elems (_buttons w))
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, map (\pt -> _ptDraw pt pt) $ _particles' w
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, map drawWallFloor (wallFloorsToDraw w)
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, testPic w
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]
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fixedCoordPictures :: World -> Picture
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fixedCoordPictures w = pictures
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[ hudDrawings w
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, scaler . onLayer MenuLayer $ menuScreen w
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, customMouseCursor w
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]
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where
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scaler = setDepth (-1) . scale (2 / _windowX w) (2 / _windowY w)
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customMouseCursor :: World -> Picture
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customMouseCursor w =
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setDepth (-1)
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. scale (2 /_windowX w) (2/ _windowY w)
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. uncurry translate (_mousePos w)
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$ pictures [ line [(-5,0),(5,0)] , line [(0,-5),(0,5)] ]
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testPic :: World -> [Picture]
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testPic w = [blank]
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crDraw :: Creature -> Picture
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crDraw c = uncurry translate (_crPos c) $ rotate (_crDir c) (_crPict c c)
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ppDraw :: PressPlate -> Picture
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ppDraw c = uncurry translate (_ppPos c) $ rotate (_ppRot c) (_ppPict c)
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btDraw :: Button -> Picture
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btDraw c = uncurry translate (_btPos c) $ rotate (_btRot c) (_btPict c)
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clDraw :: Cloud -> Picture
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clDraw c = uncurry translate (_clPos c) $ (_clPict c c)
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wallFloorsToDraw :: World -> [Wall]
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wallFloorsToDraw w = filter isVisible $ IM.elems $ wallsOnScreen w
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where onScreen wall = lineOnScreen w (_wlLine wall)
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isVisible wl | wl ^? blVisible == Just False = False
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| otherwise = onScreen wl
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wallsOnScreen :: World -> IM.IntMap Wall
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wallsOnScreen w = wallsNearZones (zoneOfScreen w) w
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drawWallFloor :: Wall -> Picture
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drawWallFloor wl = if _wlIsSeeThrough wl
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then setDepth 0.9 . color c $ polygon [x,x +.+ n2,y+.+n2, y]
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else blank
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where
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(x:y:_) = _wlLine wl
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c = _wlColor wl
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n2 = 15 *.* (vNormal . errorNormalizeVDR $ y -.- x)
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errorNormalizeVDR :: Point2 -> Point2
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errorNormalizeVDR (0,0) = error $ "problem with function: errorNormalizeVDR in DodgeRendering"
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errorNormalizeVDR p = normalizeV p
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printPoint :: Point2 -> Picture
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printPoint p = color white $ uncurry translate p $ pictures [circle 3 ,scale 0.05 0.05 $ text (show p)]
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printRotPoint :: Float -> Point2 -> Picture
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printRotPoint r p = color white $ uncurry translate p $ pictures [circle 3
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, rotate (0 - r) $ scale 0.1 0.1 $ text (show p)]
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outsideScreenPolygon :: World -> [Point2]
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outsideScreenPolygon w = [tr,tl,bl,br]
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where scRot = rotateV (_cameraRot w)
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scZoom p | _cameraZoom w /= 0 = (1/_cameraZoom w) *.* p
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scTran p = p +.+ _cameraCenter w
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tr = scTran $ scRot $ scZoom ( 3*halfWidth w , 3* halfHeight w)
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tl = scTran $ scRot $ scZoom (- (3*halfWidth w), 3* halfHeight w)
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br = scTran $ scRot $ scZoom ( 3*halfWidth w ,- (3* halfHeight w))
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bl = scTran $ scRot $ scZoom (- (3*halfWidth w),- (3* halfHeight w))
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x = halfWidth w + halfHeight w
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wallShadowsToDraw :: World -> [Wall]
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wallShadowsToDraw w = filter (fromMaybe True . (^? blVisible))
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. IM.elems
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$ wallsNearZones (zoneOfSight w) w
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-- cannot only test if walls are on screen, but also if they are on the cone
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-- towards the center of sight
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lineOnScreenCone :: World -> [Point2] -> Bool
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lineOnScreenCone w (p1:p2:_) = errorPointInPolygon 8 p1 sp || errorPointInPolygon 9 p2 sp
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|| any (isJust . uncurry (intersectSegSeg' p1 p2)) sps
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where sp' = screenPolygon w
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vp = _cameraViewFrom w
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sp | pointInPolygon vp sp' = sp'
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| otherwise = orderPolygon $ (_cameraViewFrom w : sp')
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sps = zip sp (tail sp ++ [head sp])
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lineOnScreen :: World -> [Point2] -> Bool
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lineOnScreen w (p1:p2:_) = errorPointInPolygon 8 p1 sp || errorPointInPolygon 9 p2 sp
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|| any (isJust . uncurry (intersectSegSeg' p1 p2)) sps
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where sp = screenPolygon w
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sps = zip sp (tail sp ++ [head sp])
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drawWallFace :: World -> Wall -> Picture
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drawWallFace w wall
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| isRHS sightFrom x y || _wlIsSeeThrough wall = blank
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| otherwise = setDepth (-1) . color (withAlpha 0 black) . polygon $ points
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where
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(x:y:_) = _wlLine wall
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points = extendConeToScreenEdge w sightFrom (x,y)
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sightFrom = _cameraViewFrom w
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-- the following assumes that the point a is inside the screen
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-- it still works otherwise, but it might intersect two points:
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-- it is not obvious which will be returned
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intersectLinefromScreen :: World -> Point2 -> Point2 -> Maybe Point2
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intersectLinefromScreen w a b = listToMaybe
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. mapMaybe (\(x,y) -> intersectSegLineFrom' x y b (b +.+ b -.- a))
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. makeLoopPairs
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$ screenPolygon w
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extendConeToScreenEdge :: World -> Point2 -> (Point2,Point2) -> [Point2]
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extendConeToScreenEdge w c (x,y) = orderPolygon $ wallScreenIntersect ++ [x,y] ++ borderPs ++ cornerPs
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where borderPs = mapMaybe (intersectLinefromScreen w c) [x,y]
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cornerPs = filter (pointIsInCone c (x,y)) $ screenPolygon w
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wallScreenIntersect = mapMaybe (uncurry $ intersectSegSeg' y ((2*.*y) -.- x))
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. makeLoopPairs $ screenPolygon w
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rectangleSolid x y = polygon [(x,y),(x,-y),(-x,-y),(-x,y)]
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drawItem :: FloorItem -> Picture
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drawItem flIt = uncurry translate (_flItPos flIt)
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$ rotate (_flItRot flIt) (_itFloorPict (_flIt flIt))
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ffToDraw :: World -> [ForceField]
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ffToDraw w = filter (lineOnScreen w . _ffLine) $
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IM.elems $ fmap (over ffLine (map (\p->p -.- _cameraCenter w))) $
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_forceFields w
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drawFF :: ForceField -> Picture
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drawFF (FF {_ffLine = l, _ffColor = col}) = pictures [color white $ line l, color col
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$ lineOfThickness 6 l ]
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drawFFShadow :: World -> ForceField -> [Picture]
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drawFFShadow w ff
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| youOnFF = []
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| otherwise = map (rotate ( _cameraRot w) . pane)
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[0,0.05..0.25]
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where p = rotateV (-_cameraRot w) $ ypShift
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x = rotateV (-_cameraRot w) x'
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y = rotateV (-_cameraRot w) y'
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yp = _crPos $ you w
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(x1:y1:_) = _ffLine ff
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(x':y':_) | isRHS x1 y1 yp = (y1:x1:[])
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| otherwise = (x1:y1:[])
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fCol = color (_ffColor ff)
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col = _ffColor ff
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ypShift = yp -.- _cameraCenter w
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youOnFF = circOnSeg x' y' ypShift (_crRad $ you w)
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pane j = color (withAlpha 0.1 col)
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$ polygon
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$ [ x
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, x +.+ ((0.1 + j) *.* (x -.- ypShift))
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, y +.+ ((0.1 + j) *.* (y -.- ypShift))
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, y]
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wallsPointsAndCols :: World -> [((Point2,Point2),Point4)]
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wallsPointsAndCols w = map f . filter (not . _wlIsSeeThrough) . IM.elems $ wallsNearZones (zoneOfDoubleScreen w) w
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where linePairs (x:y:_) = (x,y)
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f wl = (linePairs $ _wlLine wl, _wlColor wl)
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wallsWindows :: World -> [((Point2,Point2),Point4)]
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wallsWindows w = map f . filter (fromMaybe True . (^? blVisible)) .
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filter _wlIsSeeThrough . IM.elems $ wallsNearZones (zoneOfDoubleScreen w) w
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where linePairs (x:y:_) = (x,y)
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f wl = (linePairs $ _wlLine wl, _wlColor wl)
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wallsForShadows :: World -> [(Point2,Point2)]
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wallsForShadows w = map (linePairs . _wlLine)
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. filter (not . _wlIsSeeThrough)
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. IM.elems $ wallsNearZones (zoneOfDoubleScreen w) w
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where linePairs (x:y:_) = (x,y)
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lightsForGloom' :: World -> [(Point4)]
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lightsForGloom' w = map getLS (IM.elems $ _lightSources w) ++ map getTLS (_tempLightSources w)
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where getLS ls = ( fst $ _lsPos ls, snd $ _lsPos ls, _lsRad ls , _lsIntensity ls)
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getTLS ls = ( fst $ _tlsPos ls,snd $ _tlsPos ls, _tlsRad ls, _tlsIntensity ls)
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