apecs-physics-gloss (empty) → 0.1.0.0

raw patch · 5 files changed

+138/−0 lines, 5 filesdep +apecsdep +apecs-physicsdep +basesetup-changed

Dependencies added: apecs, apecs-physics, base, gloss

Files

LICENSE +30/−0
README.md +2/−0
Setup.hs +2/−0
apecs-physics-gloss.cabal +25/−0
src/Apecs/Physics/Gloss.hs +79/−0

+ LICENSE view

@@ -0,0 +1,30 @@+Copyright Jonas Carpay (c) 2017++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Jonas Carpay nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ README.md view

@@ -0,0 +1,2 @@+# apecs-physics-gloss+Tools for simple gloss-based rendering, split out to avoid unnecessary dependencies if you roll our own rendering

+ Setup.hs view

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

+ apecs-physics-gloss.cabal view

@@ -0,0 +1,25 @@+name:                apecs-physics-gloss+version:             0.1.0.0+synopsis:            Gloss rendering for apecs-physics+description:         Gloss rendering for apecs-physics+homepage:            https://github.com/jonascarpay/apecs-physics#readme+license:             BSD3+license-file:        LICENSE+author:              Jonas Carpay+maintainer:          jonascarpay@gmail.com+copyright:           MIT+category:            Web+build-type:          Simple+extra-source-files:  README.md+cabal-version:       >=1.10++library+  hs-source-dirs:      src+  exposed-modules:     Apecs.Physics.Gloss+  ghc-options:         -O2+  build-depends:       base >= 4.7 && < 5, apecs-physics, gloss, apecs >= 0.6+  default-language:    Haskell2010++source-repository head+  type:     git+  location: https://github.com/jonascarpay/apecs-physics

+ src/Apecs/Physics/Gloss.hs view

@@ -0,0 +1,79 @@+{-# LANGUAGE FlexibleContexts           #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}+{-# LANGUAGE MultiParamTypeClasses      #-}+{-# LANGUAGE TypeFamilies               #-}++module Apecs.Physics.Gloss+  ( BodyPicture (..), Camera (..),+    toPicture, drawWorld, applyView, mouseToWorld, v2ToTuple,+    defaultSimulate,+  ) where++import           Apecs+import           Apecs.Physics+import           Data.Foldable                        (fold)+import           Data.Semigroup                       (Semigroup(..))+import qualified Graphics.Gloss                       as G+import           Graphics.Gloss.Geometry.Angle        (radToDeg)+import qualified Graphics.Gloss.Interface.IO.Simulate as GS++newtype BodyPicture = BodyPicture G.Picture deriving Monoid+instance Semigroup BodyPicture where+  BodyPicture pa <> BodyPicture pb = BodyPicture (mappend pa pb)++instance Component BodyPicture where+  type Storage BodyPicture = Map BodyPicture++data Camera = Camera+  { gvOffset :: V2 Double+  , gvScale  :: Double+  }++instance Semigroup Camera where+  Camera p1 z1 <> Camera p2 z2 = Camera (p1 + p2) (z1 * z2)+instance Monoid Camera where+  mempty = Camera 0 1+  mappend = (<>)++instance Component Camera where+  type Storage Camera = Global Camera++applyView :: Camera -> G.Picture -> G.Picture+applyView (Camera (V2 x y) scale) =+  G.Scale (realToFrac scale) (realToFrac scale) .  G.Translate (realToFrac . negate $ x) (realToFrac . negate $ y)++mouseToWorld :: (Float,Float) -> Camera -> V2 Double+mouseToWorld (x,y) (Camera offset scale) = (/scale) <$> (V2 (realToFrac x) (realToFrac y))-offset++toPicture :: Convex -> G.Picture+toPicture (Convex [V2 x y] radius) = G.Translate (realToFrac x) (realToFrac y) $ G.Circle (realToFrac radius)+toPicture (Convex [a,b] _) = G.Line [v2ToTuple a, v2ToTuple b]+toPicture (Convex verts _) = G.Polygon (v2ToTuple <$> verts)++v2ToTuple :: V2 Double -> (Float, Float)+v2ToTuple (V2 x y) = (realToFrac x, realToFrac y)++drawWorld+  :: ( Has w IO Physics+     , Has w IO BodyPicture+     , Has w IO Camera)+  => System w G.Picture+drawWorld = do+  pics <- flip cfold [] $+    \ps ((Position (V2 x y), Angle theta, BodyPicture pic)) ->+      (G.Translate (realToFrac x) (realToFrac y) .+       G.Rotate (negate . radToDeg . realToFrac $ theta) $+       pic) : ps+  view <- get global+  return . applyView view . G.pictures $ pics++defaultSimulate+  :: ( Has w IO Physics+     , Has w IO BodyPicture+     , Has w IO Camera)+  => w -> String -> IO ()+defaultSimulate w name =+  GS.simulateIO (GS.InWindow name (640,480) (100,100)) G.black 60 w render stepper+    where+      render w       = runSystem drawWorld w+      stepper _ dT w = runSystem (stepPhysics (1/60)) w >> return w