Comments on: Coding Android sprite sheet animations

By: John Horton

John Horton — Wed, 15 Mar 2017 13:23:25 +0000

Hi there, Unfortunately I lost track of the source code for this a while ago. It is all on the page however and copy & pasting should work.

By: Abhishek kr soni

Abhishek kr soni — Wed, 15 Mar 2017 11:29:44 +0000

Hi John
can you please give me the source code.

By: John Horton

John Horton — Tue, 15 Nov 2016 08:38:58 +0000

This is the line line that alters bob’s horizontal position.

bobXPosition = bobXPosition + (walkSpeedPerSecond / fps);

Then in the dram method the call to drawBitmap uses whatever the current value of bobXPosition is. Your new object will need a variable to keep track of its x position as well.

By: Zeng

Zeng — Mon, 14 Nov 2016 02:03:08 +0000

Hi John.

The obstacle would be a moving a object and I’m trying to do it the same way as bob’s horizontal coordinates. But im really confuse on what part does bob moves in a horizontal way.

By: John Horton

John Horton — Sun, 13 Nov 2016 17:06:14 +0000

It depends what you are trying to achieve. If the obstacle is a moving object, perhaps like an enemy then you can move it the same way as you change Bob's horizontal coordinates. If it is stationary then it depends whether you want a single screen in which the object doesn't move and Bob moves towards or away from it. If you want a scrolling world where Bob stays in the centre of the screen and the whole world moves relative to his movement then you need a viewport as discussed in this viewport tutorial. Or perhaps I have misunderstood your question.