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authorMatthias Schiffer <matthias@gamezock.de>2010-03-18 09:14:32 +0100
committerMatthias Schiffer <matthias@gamezock.de>2010-03-18 09:14:32 +0100
commit5c34cd694117421e570b3a6cc3bb813e17e50b33 (patch)
tree65391fc23ac2eedbd5caf2c88f8a1ac2d5efb6fd
parenta1294859c7512f3416612f0911946e7768d95bdd (diff)
downloadhtanks-5c34cd694117421e570b3a6cc3bb813e17e50b33.tar
htanks-5c34cd694117421e570b3a6cc3bb813e17e50b33.zip
Added bullet/tank collision; reduced tick count
-rw-r--r--src/CPUPlayer.hs2
-rw-r--r--src/Collision.hs21
-rw-r--r--src/Game.hs2
-rw-r--r--src/HTanks.hs4
-rw-r--r--src/Simulation.hs23
5 files changed, 41 insertions, 11 deletions
diff --git a/src/CPUPlayer.hs b/src/CPUPlayer.hs
index 4a6fb37..1a6ce70 100644
--- a/src/CPUPlayer.hs
+++ b/src/CPUPlayer.hs
@@ -16,4 +16,4 @@ data CPUPlayer = CPUPlayer Micro
deriving (Typeable, Show)
instance Player CPUPlayer where
- playerUpdate (CPUPlayer angle) _ = (CPUPlayer (if (angle+0.1) > 180 then angle-359.08 else angle+0.02), Just angle, True, Just (-angle), False)
+ playerUpdate (CPUPlayer angle) _ = (CPUPlayer (if (angle+0.2) > 180 then angle-359.8 else angle+0.2), Just angle, True, Just (-angle), False)
diff --git a/src/Collision.hs b/src/Collision.hs
index 9ad898b..a69dc10 100644
--- a/src/Collision.hs
+++ b/src/Collision.hs
@@ -1,5 +1,6 @@
module Collision ( collisionTankBorder
, collisionBulletBullet
+ , collisionBulletTank
) where
import Tank
@@ -49,3 +50,23 @@ collisionBulletBullet :: (Bullet, Bullet) -> (Bullet, Bullet) -> Bool
collisionBulletBullet (b1, b1') (b2, b2') = distancesq < (bulletDiameter^2)
where
distancesq = (bulletX b1' - bulletX b2')^2 + (bulletY b1' - bulletY b2')^2
+
+collisionBulletTank :: (Bullet, Bullet) -> (Tank, Tank) -> Bool
+collisionBulletTank (b, b') (tank, tank') = (not ((between bx minx maxx) && (between by miny maxy))) && ((between bx' minx maxx) && (between by' miny maxy))
+ where
+ between x a b = x >= a && x <= b
+
+ dir t = (fromRational . toRational . tankDir $ t)*pi/180
+ cosd t = fromRational (round ((cos $ dir t)*1000000)%1000000)
+ sind t = fromRational (round ((sin $ dir t)*1000000)%1000000)
+
+ rotp t (x, y) = ((cosd t)*x + (sind t)*y, -(sind t)*x + (cosd t)*y)
+ transp t (x, y) = (x - tankX t, y - tankY t)
+
+ (bx, by) = (rotp tank) . (transp tank) $ (bulletX b, bulletY b)
+ (bx', by') = (rotp tank') . (transp tank') $ (bulletX b', bulletY b')
+
+ minx = -tankLength/2
+ maxx = tankLength/2
+ miny = -tankWidth/2
+ maxy = tankWidth/2
diff --git a/src/Game.hs b/src/Game.hs
index 651918c..623e3ad 100644
--- a/src/Game.hs
+++ b/src/Game.hs
@@ -23,7 +23,7 @@ data Bullet = Bullet
, bulletSpeed :: !Micro
, bulletBouncesLeft :: !Int
, bulletTank :: !Int
- } deriving Show
+ } deriving (Eq, Show)
data GameState = GameState
{ level :: !Level
diff --git a/src/HTanks.hs b/src/HTanks.hs
index 15c3ed6..63e647d 100644
--- a/src/HTanks.hs
+++ b/src/HTanks.hs
@@ -61,11 +61,11 @@ mainLoop = do
liftIO $ threadDelay $ truncate $ 1e6*(minFrameTime - drender)
currenttime <- liftIO getCurrentTime
- let d = round $ 1e3*(diffUTCTime currenttime t)
+ let d = round $ 1e2*(diffUTCTime currenttime t)
replicateM_ d simulationStep
- let newtime = addUTCTime ((1e-3)*(fromIntegral d)) t
+ let newtime = addUTCTime ((1e-2)*(fromIntegral d)) t
modify $ \state -> state {time = newtime}
diff --git a/src/Simulation.hs b/src/Simulation.hs
index a1c193f..c9810b3 100644
--- a/src/Simulation.hs
+++ b/src/Simulation.hs
@@ -10,6 +10,7 @@ import Tank
import Control.Monad.State
import Data.Fixed
+import Data.List
import Data.Maybe
import Data.Ratio
@@ -17,7 +18,7 @@ import Data.Ratio
updateAngle :: Micro -> State Tank ()
updateAngle angle = do
oldangle <- gets tankDir
- tspeed <- gets tankTurnspeed >>= return . (/1000)
+ tspeed <- liftM (/100) $ gets tankTurnspeed
let diff = angle - oldangle
let diff360 = if (diff > 180)
@@ -65,8 +66,8 @@ updateTank game angle move aangle = do
when (isNothing angle || (isJust angle && (tdir == fromJust angle)) || moved) $ do
let anglej = (fromRational . toRational $ tdir)*pi/180
- dx = tspeed * fromRational (round ((cos anglej)*1000)%1000000)
- dy = tspeed * fromRational (round ((sin anglej)*1000)%1000000)
+ dx = tspeed * fromRational (round ((cos anglej)*1000)%100000)
+ dy = tspeed * fromRational (round ((sin anglej)*1000)%100000)
put tank {tankX = dx + tankX tank, tankY = dy + tankY tank, tankMoving = True}
@@ -83,8 +84,8 @@ updateBullet game = do
bullet <- get
let angle = (fromRational . toRational . bulletDir $ bullet)*pi/180
speed = bulletSpeed bullet
- dx = speed * fromRational (round ((cos angle)*1000)%1000000)
- dy = speed * fromRational (round ((sin angle)*1000)%1000000)
+ dx = speed * fromRational (round ((cos angle)*1000)%100000)
+ dy = speed * fromRational (round ((sin angle)*1000)%100000)
x = dx + bulletX bullet
y = dy + bulletY bullet
lw = fromIntegral . levelWidth . level $ game
@@ -123,8 +124,12 @@ simulationStep = do
lift $ modify $ \state ->
let thebullets = map (runState $ updateBullet state) $ bullets state
leftbullets = collideBullets $ zipWith (\(left, bullet') bullet -> (left, bullet, bullet')) thebullets $ bullets state
- thetanks = map (\(tank, n) -> tank {tankBulletsLeft = (tankBulletsLeft tank) + (countLostTankBullets n leftbullets)}) $ zip newtanks [0..]
- in state {tanks = thetanks, bullets = newbullets ++ (map snd . filter fst $ leftbullets)}
+ bt = hitBullets $ liftM2 (\(b, (_, b')) (t, t') -> (b, b', t, t')) (zip (bullets state) leftbullets) (zip (tanks state) newtanks)
+ leftbullets2 = map (\(left, bullet) -> (left && (all (\(c, b, _) -> (b /= bullet) || (not c)) bt), bullet)) leftbullets
+
+ thetanks = map (\(tank, n) -> tank {tankBulletsLeft = (tankBulletsLeft tank) + (countLostTankBullets n leftbullets2)}) $ zip newtanks [0..]
+
+ in state {tanks = thetanks, bullets = newbullets ++ (map snd . filter fst $ leftbullets2)}
where
collideBullets [] = []
@@ -135,6 +140,10 @@ simulationStep = do
left = map (\(left, c, b, b') -> (left && not c, b, b')) $ cs
in (collided, left)
+ hitBullets :: [(Bullet, Bullet, Tank, Tank)] -> [(Bool, Bullet, Tank)]
+ hitBullets [] = []
+ hitBullets ((b, b', t, t'):xs) = (collisionBulletTank (b, b') (t, t'), b', t'):(hitBullets xs)
+
updateTank' game (player, tank) = let (p, angle, move, aangle, shoot) = playerUpdate player tank
t = execState (updateTank game angle move aangle) tank
in (p, t, shoot)