Here is a bit of Monkey code for simple car physics.
Searching the forums will give you more elaborate examples.
Class TCar
Const MAXPOWER# = 0.1
Const MAXTURN# = 0.6
field positionX# = 400
field positionY# = 300
field velocityX#
field velocityY#
field drag# = 0.97
field angle# = 0
field angularVelocity#
field angularDrag# =0.8
field power# = 0'0.6
field turnSpeed# = 0.7
Method New()
End Method
Method ControlViaKeys:Void()
If KeyDown(KEY_UP) Then
power += 0.001
If power > MAXPOWER Then power = MAXPOWER
velocityX += Sin(angle) * power;
velocityY += Cos(angle) * power;
Else
power *= 0.7
Endif
If KeyDown(KEY_DOWN) Then
velocityX *= 0.9
velocityY *= 0.9
Endif
If KeyDown(KEY_LEFT) Then
angularVelocity += turnSpeed
Endif
If KeyDown(KEY_RIGHT) Then
angularVelocity -= turnSpeed
EndIf
End Method
Method UpdatePhysics:Void()
positionX += velocityX
positionY += velocityY
velocityX *= drag
velocityY *= drag
angle += angularVelocity
angularVelocity *= angularDrag
' If positionX < 0 Then positionX = 799
' If positionY < 0 Then positionY = 599
' If positionX > 800 Then positionX = 0
' If positionY > 600 Then positionY = 0
turnSpeed = Max(Abs(velocityX),Abs(velocityY))/2
turnSpeed = Min(MAXTURN, turnSpeed)
End Method
End
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