4 direction player sprites?

[method72]

I know I can use REFP0 to flip my player facing left/right

 

But what about facing up and down? 

 

Think of it like the sword in adventure   

sure ---->   and  <----  are easy enough to flip left and right..

But what about making the sword face Up or Down?

 

I am working, and not in front of my development PC at the moment, so can't test this.. but have a curious theory and figured i would ask, before I have a chance

to experiment later this evening.

 

Could I create 4 labels, then check the direction of the joystick for player0,  and based on the direction being pressed, gosub to that label to set the current player0 graphic, and f the joystick direction changes, then gosub to the applicable label to set the new graphic to represent the image for the new position of the player?

Perhaps only 3 graphics are needed since the left/right can use the same one, and apply reflection

 

I assume I can also add an additional check, for no input, and just pick whatever one I choose as default, to make sure there is always a valid graphic.

 

I am just not sure if bB allows you to re-define p0... honestly never tried,  as so far all my programs used a static player sprite... but am looking to expand that behavior now, as well as add player animations as a next step.

[+Random Terrain]

I made a quick example program using the sprite from Seaweed Assault that has animations for 8 directions.

 

Here's the .bas file so you can look at the code:

mini_ex_8_way_animation_2021y_06m_14d_1359t.bas

 

Here's the .bin file to use with your favorite emulator:

mini_ex_8_way_animation_2021y_06m_14d_1359t.bin

 

It uses SWCHA instead of the usual way since that's easier when dealing with an animated sprite that moves in 8 directions.