Need help with player movement !

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Doggie

I'd think merely checking the terrainY against the players position would tell you whether or not he's in the air or on the ground. Providing that's how you're controlling where he walks. Something similar as this.

While Not KeyHit(1)
If KeyDown(200) Then
MoveEntity player,0,0,.5 
EndIf
If KeyDown(208) Then
MoveEntity player,0,0,-.5 
EndIf
If KeyDown(203) Then
TurnEntity player ,0,2,0 
EndIf
If KeyDown(205) Then
TurnEntity player ,0,-2,0 
EndIf
x#=EntityX(camera)
y#=EntityY(camera)
z#=EntityZ(camera)
x1#=EntityX(player)
y1#=EntityY(player)
z1#=EntityZ(player)
terra_y#=TerrainY(terrain1,x#,y#,z#)+5
PositionEntity camera,x#,terra_y#+15,z#
If Not EntityCollided(player,2)
PositionEntity player,x1#,terra_y#+3,z1#
End If
If Not KeyDown(200) Or KeyDown(208)
AnimateMD2 player,1,0.5,20,25 :UpdateWorld
EndIf
MouseLook(camera)
UpdateWorld
RenderWorld
Flip
Wend

Doggie