Trouble with adding field types and Gravity

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If Player1\Gravity = 1 Then
Player1\y = Player1\y + 5 ; initial gravity
If ImagesCollide(Player1Anim, Player1\x, Player1\y, 0, WhatLevel, GraphicsWidth()/2, GraphicsHeight()/2, 0) Then
If ImagesCollide(Player1Anim, Player1\x, Player1\y, 0, WhatLevel, GraphicsWidth()/2, GraphicsHeight()/2, 0)
Player1\y = Player1\y - 1

Wend
endif
endif

You shouldnt use this:



While ImagesCollide(Player1Anim, Player1\x, Player1\y, 0, WhatLevel, GraphicsWidth()/2, GraphicsHeight()/2, 0)

cause it will freeze
Use "If" It will update every frame so dont use while
It usually is 30 or more fps, so updating shold be no problem.
*DEPENDING ON THE GRAPHICS CARD*