SimonH, I'm getting some issues with collisions between the ball and the goalpost/crossbar. Basically I handle the collision like so...
If matchengine.enginestatus <> CENGINESTATUS_REPLAYING ' Don't do collisions during replays
Local bounce:Float = 0.0
Local NFx:Float = 0.0
Local NFy:Float = 0.0
Local NFz:Float = 0.0
For Local i:Int = 1 To CountCollisions(mesh)
Local myentity:TEntity = CollisionEntity(mesh, i) ' TEntity
' Get the normal of the surface which the entity collided with.
Local Nx# = CollisionNX(mesh, i)
Local Ny# = CollisionNY(mesh, i)
Local Nz# = CollisionNZ(mesh, i)
' Compute the dot product of the entity's motion vector and the normal of the surface collided with.
Local VdotN# = vecVelocity.x*Nx# + vecVelocity.y*Ny# + vecVelocity.z*Nz#
Select GetEntityType(myentity)
Case CTYPE_GOALPOST
Applog "Collision GoalPost"
bounce = 0.8
' Calculate the normal force.
NFx = -(2.0) * Nx# * VdotN#
NFy = -(2.0) * Ny# * VdotN#
NFz = -(2.0) * Nz# * VdotN#
Case CTYPE_GOALNET
Applog "Collision GoalNet"
' Only bounce off net if post wasn't hit
If bounce = 0 and (GetZ() > matchengine.GoalLine1 or GetZ() < matchengine.GoalLine2)
NFx = -(2.0) * Nx# * VdotN#
NFy = -(2.0) * Ny# * VdotN#
NFz = -(2.0) * Nz# * VdotN#
' Normal slight bounce
bounce = 0.2
EndIf
Case CTYPE_WALL
Applog "Collision Wall"
If bounce = 0
bounce = 0.6
NFx = -(2.0) * Nx# * VdotN#
NFy = -(2.0) * Ny# * VdotN#
NFz = -(2.0) * Nz# * VdotN#
EndIf
Case CTYPE_STADIUM
Applog "Collision Stadium"
If bounce = 0
bounce = 0.6
NFx = -(2.0) * Nx# * VdotN#
NFy = -(2.0) * Ny# * VdotN#
NFz = -(2.0) * Nz# * VdotN#
EndIf
End Select
Next
If bounce > 0
Local mx:Float = ((vecVelocity.x + NFx#) * bounce)
Local my:Float = ((vecVelocity.y + NFy#) * bounce)
Local mz:Float = ((vecVelocity.z + NFz#) * bounce)
vecVelocity.x = mx
vecVelocity.y = my
vecVelocity.z = mz
EndIf
EndIf
The bounce check is purely to try to force the game to deal with primarily the goalpost collision in one loop rather than deal with a clash between ball, goalpost and goalnet.
However, I'm occasionally seeing the ball change direction two or three times in one collision with the goal frame.
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