Problems with the ImageCollision function
BlitzMax Forums/BlitzMax Programming/Problems with the ImageCollision function
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| I'm trying to make a game like pac-man. I'm trying to make it so that when my character collides with an apple on screen, the apple disappears (as does when pac-man eats one). But, everytime my character collides with the apple, I get a message that says "Object does not exist." Thus, what do I need to do to make this error go away? My code looks like this: Graphics 640, 480, 16, 2 SetBuffer BackBuffer() Eatum = LoadImage ("Eatum.png") apple = LoadImage("Apple.png") Type Eatum Field x Field y End Type Type apple Field x Field y End Type For z = 1 To 5 a.apple = New apple a\x = -100 + 50 * z a\y = 150 Next While Not KeyDown (1) Cls DrawImage (Eatum, x,y) DrawImage (apple, a\x,a\y) If ImagesCollide (Eatum,x,y,0,apple, a\x,a\y,0) Then Delete a EndIf If KeyDown(203) Then x = x - 3 If KeyDown(205) Then x = x + 3 If KeyDown(200) Then y = y - 3 If KeyDown(208) Then y = y + 3 Flip Wend |
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| a.apple = New apple You have this in a loop, but each time the loop iterates the newly created apple object overwrites the previous one. You're trying to store all 5 apples in 1 `a` variable. You need an array of apples ie: local Apples:Apple[5] for z=0 to 4 Apples[z] = New apple Apples[z]\x = -100 + 50 * z Apples[z]\y = 150 Next |
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