An update of the FunGEn openGL-based 2D game engine.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 | {-
worms - a very simple FunGEn example.
http://www.cin.ufpe.br/~haskell/fungen
Copyright (C) 2001 Andre Furtado <awbf@cin.ufpe.br>
This code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-}
module Main where
import Text.Printf
import Graphics.UI.Fungen
import Graphics.Rendering.OpenGL (GLdouble)
data GameAttribute = GA Int Int Int (GLdouble,GLdouble) Int
data ObjectAttribute = NoObjectAttribute | Tail Int
data GameState = LevelStart Int | Level Int | GameOver
data TileAttribute = NoTileAttribute
type WormsAction a = IOGame GameAttribute ObjectAttribute GameState TileAttribute a
type WormsObject = GameObject ObjectAttribute
type WormsTile = Tile TileAttribute
type WormsMap = TileMatrix TileAttribute
tileSize, speedMod :: GLdouble
tileSize = 30.0
speedMod = 30.0
initPos, tail0Pos, tail1Pos :: (GLdouble,GLdouble)
initPos = (45.0,105.0)
tail0Pos = (45.0,75.0)
tail1Pos = (45.0,45.0)
maxFood, initTailSize, defaultTimer :: Int
maxFood = 10
initTailSize = 2
defaultTimer = 10
magenta :: InvList
magenta = Just [(255,0,255)]
bmpList :: FilePictureList
bmpList = [("level1.bmp", Nothing),
("level2.bmp", Nothing),
("level3.bmp", Nothing),
("gameover.bmp", magenta),
("congratulations.bmp", magenta),
("headn.bmp", magenta),
("heads.bmp", magenta),
("heade.bmp", magenta),
("headw.bmp", magenta),
("food.bmp", magenta),
("segment.bmp", magenta),
("border1.bmp", magenta),
("border2.bmp", magenta),
("border3.bmp", magenta),
("free1.bmp", magenta),
("free2.bmp", magenta),
("free3.bmp", magenta)]
-- position of the paths in the list:
border1, border2, border3, free1, free2, free3 :: Int
border1 = 11
border2 = 12
border3 = 13
free1 = 14
free2 = 15
free3 = 16
main :: IO ()
main = do
let winConfig = ((100,50),(780,600),"WORMS - by Andre Furtado")
gameMap = multiMap [(tileMap map1 tileSize tileSize),
(tileMap map2 tileSize tileSize),
(tileMap map3 tileSize tileSize)] 0
gameAttribute = GA defaultTimer maxFood initTailSize initPos 0
groups = [(objectGroup "messages" createMsgs ),
(objectGroup "head" [createHead]),
(objectGroup "food" [createFood]),
(objectGroup "tail" createTail )]
input = [(SpecialKey KeyLeft, Press, turnLeft ),
(SpecialKey KeyRight, Press, turnRight),
(SpecialKey KeyUp, Press, turnUp ),
(SpecialKey KeyDown, Press, turnDown )]
funInit winConfig gameMap groups (LevelStart 1) gameAttribute input gameCycle (Timer 150) bmpList
createMsgs :: [WormsObject]
createMsgs = let picLevel1 = Tex (150,50) 0
picLevel2 = Tex (150,50) 1
picLevel3 = Tex (150,50) 2
picGameOver = Tex (300,100) 3
picCongratulations = Tex (300,100) 4
in [(object "level1" picLevel1 True (395,300) (0,0) NoObjectAttribute),
(object "level2" picLevel2 True (395,300) (0,0) NoObjectAttribute),
(object "level3" picLevel3 True (395,300) (0,0) NoObjectAttribute),
(object "gameover" picGameOver True (395,300) (0,0) NoObjectAttribute),
(object "congratulations" picCongratulations True (395,300) (0,0) NoObjectAttribute)]
createHead :: WormsObject
createHead = let pic = Tex (tileSize,tileSize) 5
in object "head" pic True initPos (0,speedMod) NoObjectAttribute
createFood :: WormsObject
createFood = let pic = Tex (tileSize,tileSize) 9
in object "food" pic True (0,0) (0,0) NoObjectAttribute
createTail :: [WormsObject]
createTail = let picTail = Tex (tileSize,tileSize) 10
in (object "tail0" picTail False tail0Pos (0,0) (Tail 0)):
(object "tail1" picTail False tail1Pos (0,0) (Tail 1)):
(createAsleepTails initTailSize (initTailSize + maxFood - 1) picTail)
createAsleepTails :: Int -> Int -> ObjectPicture -> [WormsObject]
createAsleepTails tMin tMax pic
| (tMin > tMax) = []
| otherwise = (object ("tail" ++ (show tMin)) pic True (0,0) (0,0) (Tail 0)):(createAsleepTails (tMin + 1) tMax pic)
turnLeft :: WormsAction ()
turnLeft = do
snakeHead <- findObject "head" "head"
setObjectCurrentPicture 8 snakeHead
setObjectSpeed (-speedMod,0) snakeHead
turnRight :: WormsAction ()
turnRight = do
snakeHead <- findObject "head" "head"
setObjectCurrentPicture 7 snakeHead
setObjectSpeed (speedMod,0) snakeHead
turnUp :: WormsAction ()
turnUp = do
snakeHead <- findObject "head" "head"
setObjectCurrentPicture 5 snakeHead
setObjectSpeed (0,speedMod) snakeHead
turnDown :: WormsAction ()
turnDown = do
snakeHead <- findObject "head" "head"
setObjectCurrentPicture 6 snakeHead
setObjectSpeed (0,-speedMod) snakeHead
gameCycle :: WormsAction ()
gameCycle = do
(GA timer remainingFood tailSize previousHeadPos score) <- getGameAttribute
gState <- getGameState
case gState of
LevelStart n -> case n of
4 -> do
congratulations <- findObject "congratulations" "messages"
drawObject congratulations
if (timer == 0)
then funExit
else (setGameAttribute (GA (timer - 1) remainingFood tailSize previousHeadPos score))
_ -> do
disableGameFlags
level <- findObject ("level" ++ (show n)) "messages"
drawObject level
if (timer == 0)
then (do setGameState (Level n)
enableGameFlags
snakeHead <- findObject "head" "head"
setObjectAsleep False snakeHead
setObjectPosition initPos snakeHead
setObjectSpeed (0.0,speedMod) snakeHead
setObjectCurrentPicture 5 snakeHead
setGameAttribute (GA defaultTimer remainingFood tailSize previousHeadPos score)
destroyObject level
setNewMap n)
else setGameAttribute (GA (timer - 1) remainingFood tailSize previousHeadPos score)
Level n -> do
if (remainingFood == 0) -- advance level!
then (do setGameState (LevelStart (n + 1))
resetTails
disableGameFlags
setGameAttribute (GA timer maxFood initTailSize initPos score))
else if (timer == 0) -- put a new food in the map
then (do food <- findObject "food" "food"
newPos <- createNewFoodPosition
setObjectPosition newPos food
newFood <- findObject "food" "food"
setObjectAsleep False newFood
setGameAttribute (GA (-1) remainingFood tailSize previousHeadPos score)
snakeHead <- findObject "head" "head"
checkSnakeCollision snakeHead
snakeHeadPosition <- getObjectPosition snakeHead
moveTail snakeHeadPosition)
else if (timer > 0) -- there is no food in the map, so decrease the food timer
then (do setGameAttribute (GA (timer - 1) remainingFood tailSize previousHeadPos score)
snakeHead <- findObject "head" "head"
checkSnakeCollision snakeHead
snakeHeadPosition <- getObjectPosition snakeHead
moveTail snakeHeadPosition)
else (do -- there is a food in the map
food <- findObject "food" "food"
snakeHead <- findObject "head" "head"
col <- objectsCollision snakeHead food
if col
then (do snakeHeadPosition <- getObjectPosition snakeHead
setGameAttribute (GA defaultTimer (remainingFood-1) (tailSize + 1) snakeHeadPosition (score + 1))
addTail previousHeadPos
setObjectAsleep True food)
else (do checkSnakeCollision snakeHead
snakeHeadPosition <- getObjectPosition snakeHead
moveTail snakeHeadPosition))
showScore
GameOver -> do
disableMapDrawing
gameover <- findObject "gameover" "messages"
drawMap
drawObject gameover
if (timer == 0)
then funExit
else (setGameAttribute (GA (timer - 1) 0 0 (0,0) 0))
showScore :: WormsAction ()
showScore = do
(GA _ remainingFood _ _ score) <- getGameAttribute
printOnScreen (printf "Score: %d Food remaining: %d" score remainingFood) TimesRoman24 (40,8) 1.0 1.0 1.0
showFPS TimesRoman24 (780-60,8) 1.0 0.0 0.0
setNewMap :: Int -> WormsAction ()
setNewMap 2 = setCurrentMapIndex 1
setNewMap 3 = setCurrentMapIndex 2
setNewMap _ = return ()
resetTails :: WormsAction ()
resetTails = do
tail0 <- findObject "tail0" "tail"
setObjectPosition tail0Pos tail0
setObjectAttribute (Tail 0) tail0
tail1 <- findObject "tail1" "tail"
setObjectPosition tail1Pos tail1
setObjectAttribute (Tail 1) tail1
resetOtherTails initTailSize
resetOtherTails :: Int -> WormsAction ()
resetOtherTails n | (n == initTailSize + maxFood) = return ()
| otherwise = do tailn <- findObject ("tail" ++ (show n)) "tail"
setObjectAsleep True tailn
resetOtherTails (n + 1)
addTail :: (GLdouble,GLdouble) -> WormsAction ()
addTail presentHeadPos = do
tails <- getObjectsFromGroup "tail"
aliveTails <- getAliveTails tails []
asleepTail <- getAsleepTail tails
setObjectAsleep False asleepTail
setObjectPosition presentHeadPos asleepTail
setObjectAttribute (Tail 0) asleepTail
addTailNumber aliveTails
getAliveTails :: [WormsObject] -> [WormsObject] -> WormsAction [WormsObject]
getAliveTails [] t = return t
getAliveTails (o:os) t = do
sleeping <- getObjectAsleep o
if sleeping
then getAliveTails os t
else getAliveTails os (o:t)
getAsleepTail :: [WormsObject] -> WormsAction WormsObject
getAsleepTail [] = error "the impossible has happened!"
getAsleepTail (o:os) = do
sleeping <- getObjectAsleep o
if sleeping
then return o
else getAsleepTail os
addTailNumber :: [WormsObject] -> WormsAction ()
addTailNumber [] = return ()
addTailNumber (a:as) = do
(Tail n) <- getObjectAttribute a
setObjectAttribute (Tail (n + 1)) a
addTailNumber as
moveTail :: (GLdouble,GLdouble) -> WormsAction ()
moveTail presentHeadPos = do
(GA timer remainingFood tailSize previousHeadPos score) <- getGameAttribute
tails <- getObjectsFromGroup "tail"
aliveTails <- getAliveTails tails []
lastTail <- findLastTail aliveTails
setObjectPosition previousHeadPos lastTail
setGameAttribute (GA timer remainingFood tailSize presentHeadPos score)
changeTailsAttribute tailSize aliveTails
findLastTail :: [WormsObject] -> WormsAction WormsObject
findLastTail [] = error "the impossible has happened!"
findLastTail (t1:[]) = return t1
findLastTail (t1:t2:ts) = do (Tail na) <- getObjectAttribute t1
(Tail nb) <- getObjectAttribute t2
if (na > nb)
then findLastTail (t1:ts)
else findLastTail (t2:ts)
changeTailsAttribute :: Int -> [WormsObject] -> WormsAction ()
changeTailsAttribute _ [] = return ()
changeTailsAttribute tailSize (a:as) = do
Tail n <- getObjectAttribute a
setObjectAttribute (Tail (mod (n + 1) tailSize)) a
changeTailsAttribute tailSize as
checkSnakeCollision :: WormsObject -> WormsAction ()
checkSnakeCollision snakeHead = do
headPos <- getObjectPosition snakeHead
tile <- getTileFromWindowPosition headPos
tails <- getObjectsFromGroup "tail"
col <- objectListObjectCollision tails snakeHead
if ( (getTileBlocked tile) || col)
then (do setGameState GameOver
disableObjectsDrawing
disableObjectsMoving
setGameAttribute (GA defaultTimer 0 0 (0,0) 0))
else return ()
createNewFoodPosition :: WormsAction (GLdouble,GLdouble)
createNewFoodPosition = do
x <- randomInt (1,18)
y <- randomInt (1,24)
mapPositionOk <- checkMapPosition (x,y)
tails <- getObjectsFromGroup "tail"
tailPositionNotOk <- pointsObjectListCollision (toPixelCoord y) (toPixelCoord x) tileSize tileSize tails
if (mapPositionOk && not tailPositionNotOk)
then (return (toPixelCoord y,toPixelCoord x))
else createNewFoodPosition
where toPixelCoord a = (tileSize/2) + (fromIntegral a) * tileSize
checkMapPosition :: (Int,Int) -> WormsAction Bool
checkMapPosition (x,y) = do
mapTile <- getTileFromIndex (x,y)
return (not (getTileBlocked mapTile))
b,f,g,h,i,j :: WormsTile
b = (border1, True, 0.0, NoTileAttribute)
f = (free1, False, 0.0, NoTileAttribute)
g = (border2, True, 0.0, NoTileAttribute)
h = (free2, False, 0.0, NoTileAttribute)
i = (border3, True, 0.0, NoTileAttribute)
j = (free3, False, 0.0, NoTileAttribute)
map1 :: WormsMap
map1 = [ [b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,f,b],
[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b]]
map2 :: WormsMap
map2 = [ [g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,g,g,g,g,g,g,g,g,g,g,g,g,g,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,g,g,g,g,g,g,g,g,g,g,g,g,g,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,h,g],
[g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g,g]]
map3 :: WormsMap
map3 = [ [i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i],
[i,j,j,j,j,j,j,i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,i,i,i,i,i,i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,i,i,i,i,i,i,i,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,j,i,j,j,j,j,j,j,j,i],
[i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i,i]] |