132 lines
3.1 KiB
Haskell
132 lines
3.1 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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module Scenes.Test where
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import Affection
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import SDL (($=), get)
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import qualified SDL
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import qualified Graphics.Rendering.OpenGL as GL
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import qualified Data.Vector.Storable as VS
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import Control.Concurrent.STM
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import Control.Monad (void)
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import Linear
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-- internal imports
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import Types
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import Classes
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import Map
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import Renderer as R
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data Test = Test
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{ testMap :: TMVar LevelMap
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, testGraphics :: TMVar GLAssets
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, testLoaded :: TVar Bool
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}
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data GLAssets = GLAssets
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{ glVA :: VertexArray
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, glVB :: VertexBuffer
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, glIB :: IndexBuffer
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, glSP :: Shader
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}
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instance Scene Test where
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initScene =
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Test
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<$> newEmptyTMVarIO
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<*> newEmptyTMVarIO
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<*> newTVarIO False
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loadScene level progress = do
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atomically $ do
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void $ takeTMVar progress
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putTMVar progress (0, "Loading test level...")
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loadedMap <- constructMap testLevelDesc 0
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atomically $ putTMVar (testMap level) loadedMap
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void $ atomically $ do
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void $ takeTMVar progress
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putTMVar progress (0.5, "Loaded test level map!")
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void $ atomically $ swapTVar (testLoaded level) True
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let projection = ortho 0 800 0 600 (-1) 1 :: M44 GL.GLfloat
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view = mkTransformationMat (identity :: M33 GL.GLfloat) (V3 0 0 0)
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model = mkTransformationMat (identity :: M33 GL.GLfloat) (V3 0 0 0)
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vertexArray <- newVertexArray
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bind vertexArray
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vertexBuffer <- newVertexBuffer 1024
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bind vertexBuffer
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let vertices = VS.fromList (createQuad (V2 (400 - 16) (300 - 16)) 0)
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write vertexBuffer 0 vertices
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indexBuffer <- newIndexBuffer 1024
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bind indexBuffer
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let indices = VS.fromList [0, 1, 2, 2, 3, 0]
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write indexBuffer 0 indices
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addBuffer (undefined :: Vertex) vertexBuffer
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shader <- newShader
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[ ShaderSource GL.VertexShader "./res/shaders/vert.shader"
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, ShaderSource GL.FragmentShader "./res/shaders/frag.shader"
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]
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bind shader
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setUniform shader "u_mvp" (projection !*! view !*! model)
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unbind vertexArray
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unbind vertexBuffer
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unbind indexBuffer
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unbind shader
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atomically $ do
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putTMVar (testGraphics level)
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(GLAssets vertexArray vertexBuffer indexBuffer shader)
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writeTVar (testLoaded level) True
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void $ atomically $ do
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void $ takeTMVar progress
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putTMVar progress (1, "Loaded graphics!")
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isSceneLoaded = liftIO . atomically . readTVar . testLoaded
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update _ _ = return ()
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onEvents _ _ = return ()
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render level = liftIO $ do
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(GLAssets va vb ib sh) <- atomically (readTMVar $ testGraphics level)
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bind vb
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R.draw va ib sh
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testLevelDesc :: LevelDescriptor
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testLevelDesc = LevelDescriptor
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[ (0, "res/maps/00_test/00_test.bmp")
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]
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0
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"res/tiles/00_test/00_test.png"
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(3, 3)
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createQuad :: V2 GL.GLfloat -> Int -> [Vertex]
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createQuad pos@(V2 x y) index =
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[ newVertex (V3 x y 0) (V4 0 1 0 1) (V2 0 1) (fromIntegral index)
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, newVertex (V3 (x + 32) y 0) (V4 0 1 0 1) (V2 0 1) (fromIntegral index)
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, newVertex (V3 (x + 32) (y + 32) 0) (V4 0 1 0 1) (V2 0 1) (fromIntegral index)
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, newVertex (V3 x (y + 32) 0) (V4 0 1 0 1) (V2 0 1) (fromIntegral index)
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]
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