First command when using custom types
Blitz3D Forums/Blitz3D Beginners Area/First command when using custom types
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| I am having some trouble. I would like different objects of the same type. This is not what I am trying to do, but it illistrates what I think I am seeing: Type Aliens Field Number End Type Green.Aliens = New Aliens Green\Number = 1 Green.Aliens = New Aliens Green\Number = 2 Gray.Aliens = New Aliens Gray\Number = 5 Gray.Aliens = New Aliens Gray\Number = 6 Gray.Aliens = First Aliens Print Gray\Number The output will be 1, instead of what I want, which is 5. Is there a way to get what I want, which is to be able to iterate through the Gray Aliens, but not the Green? |
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Something like this?Const GREEN_ALIEN=1 Const GRAY_ALIEN=2 Type Aliens Field Number Field alienType End Type Green.Aliens = New Aliens Green\Number = 1 Green\alienType=GREEN_ALIEN Green.Aliens = New Aliens Green\Number = 2 Green\alienType=GREEN_ALIEN Gray.Aliens = New Aliens Gray\Number = 5 Gray\alienType=GRAY_ALIEN Gray.Aliens = New Aliens Gray\Number = 6 Gray\alienType=GRAY_ALIEN For gray.Aliens=Each Aliens If gray\alienType=GRAY_ALIEN Then Print Gray\Number:exit Next |
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| Yes, there is no inherent mechanism in Blitz for doing that (besides using a GreenAlien type and a GrayAlien type). As I understand it, BlitzMax will have polymorphism, so you WOULD be able to do this. You would have an Alien base type, which your GreenAlien and GrayAlien types would inherit from. (And both would still be, technically, Alien types.) As an alternative to checking a flag on each, you could create and/or insert them in such an order that you know which ones are gray and which are green, and you could keep pointers to them. I.e. First-> Green Green Green change->Gray Gray Last-> Gray You just have to come up with some sort of mechanism that works for you. It just that anytime you use New with a custom type, the new object gets put in the linked list that corresponds to that type. (There is only one linked list of objects for each custom type.) |
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| Thanks guys. What is blitz max? I assume it will cost more. |
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| It's the next product in the Blitz line. Granted, there are more rumours than official facts, but if you take a composite of all the tidbits from Mark Sibly's forum posts and worklogs, and apply a healthy dose of assumption and deduction, what you end up with is basically that it's the successor of BlitzPlus and Blitz3D (together). In fact, you could say that all the new features that get implemented in BlitzPlus will be very similar to things that are planned for BlitzMax. (Of course BlitzMax will have 3D OpenGL, will compile executables for Linux & Mac also, etc etc.) It will most likely cost more (if you choose to buy it). It most likely will be a separate product. I'm confident it will be well worth it. |
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| Cool |
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