Following two objects at once - GameCreators Forum

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bacteriaman

9

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Joined: 2nd Feb 2015

Location: Vancouver WA

Posted: 2nd Feb 2015 06:43

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Hello.

I purchased AGK2 a few months ago and finally getting around to using it. I'm new to AGK2, but not new to game development or programming in general.

I have spent some time with some AppGameKit tutorials and now feel comfortable enough to start my first game. I have several game ideas mulling around in my head and have decided to focus on one in particular.

My game will consist of two main objects: one is player controlled and the other is computer controlled. The goal of each level is to keep the two objects as close together as possible while navigating the playfield to a destination point. The player cannot control or manipulate the computer object directly, but instead will use various methods to coax it along.

That said, my game engine needs the ability to scroll and follow both objects at once from an overhead perspective. Both objects need to be kept on the screen at all times by zooming the playfield in (when close together) and out to a maximum viewpoint. All objects (including obstacles) will scale while zooming to stay in-sync with the background.

What's the best way to get started? Is there a tutorial to demonstrate the above? I don't mind cutting this overall objective into smaller pieces.

All comments and suggestions welcome. Thanks!

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BatVink

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21

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Joined: 4th Apr 2003

Location: Gods own County, UK

Posted: 2nd Feb 2015 10:33 Edited at: 6th Feb 2015 10:38

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It's your lucky day...or lucky choice of programming language.

Check out the following 2 commands in the help, in the core section:

SetViewZoom
SetViewZoomMode

To move around the playing field:

SetViewOffset

You will also want to look up these for converting what you see on the screen, to where you are in your world, and vice versa:

ScreenToWorldX / ScreenToWorldY
WorldToScreenX / WorldToScreenY

and possibly for your scores, lives etc:

FixTextToScreen
FixSpriteToScreen

Quidquid latine dictum sit, altum sonatur

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bacteriaman

9

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Joined: 2nd Feb 2015

Location: Vancouver WA

Posted: 2nd Feb 2015 21:55

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@BatVink,

Wow, lucky for me indeed.

It's great to hear AppGameKit is going to do most of the heavy lifting for me.

I'm anxious to get started with your suggestions and I will report back with my progress (and perhaps a follow-up question or two.)

Cheers,
John

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