help with sprite collision

[sesco]

I'm getting the error ' Sprite 0 is not on screen!' for this collision check below but I only defined Sprites 1,2, and 3

-----------------------------------------------------------------------
If Collision(#SPRITE, sprite1, sprite3) = True
DisplaySprite(2, 0, 0)
Else
DisplaySprite(3, 0, 0)
EndIf

[fjudde]

We need to see more of the code. Which values have you assigned to the variables sprite1 and sprite3? You need to give them the same number as the corresponding sprites

When I work with sprites I use constants with describing names instead of variables:

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@SPRITE 1, "I-PointBlack.png", {Transparency = #WHITE}
Const #Ipoint = 1
@SPRITE 2, "Sword32x20transWhite.png", {Transparency = #WHITE}
Const #Sword = 2

And then I use the constants throughout the program when referring to the sprites

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If Collision(#SPRITE, #Sword, #Ipoint) = True
    ...do stuff...
EndIf

Makes it easier to read your own code later on when sprite are described with names instead of numbers or digits.

[fjudde]

When I work with sprites I use constants with describing names instead of variables:

Code: Select all

@SPRITE 1, "I-PointBlack.png", {Transparency = #WHITE}
Const #Ipoint = 1
...

Well, this is even better, the constants first!

Code: Select all

Const #Ipoint = 1
@SPRITE #Ipoint, "I-PointBlack.png", {Transparency = #WHITE}

I should have done it this way earlier Well never too late to change.