AMAL Beginner questions

thyslo · 19 March 2023, 08:56

I'm playing around with AMOS Pro and have some problems to understand the AMAL sub language. In AMOS Pro manual, p. 07.06.07 is an example of a movement pattern:

Code:

Load "AMOSPro_Tutorial:Objects/Sprites.abk" : Get Sprite Palette 
SP=4 : Sprite SP,128,100,7
C$="For R0=1 To 300; Let X=X+1; Next R0;" 
Amal SP,C$ : Amal On SP
Direct

This moves the sprite horizontally towards the right border.

Now I tried to get this movement repeated endlessly by changing the AMAL string in

Code:

C$="Start: For R0=1 To 300; Let X=X+1; Next R0; Jump Start"

But it didn't work.

Does anyone know how to repeat a simple move forever (or until a termination condition)?

Honitos · 19 March 2023, 13:24

I guess you just have to reset the X-Position of the Sprite.
It does not work because the variable X is increased endless.

thyslo · 19 March 2023, 19:16

This solved it, thank you:-)

19 March 2023, 08:56	#1
thyslo Registered User Join Date: Apr 2018 Location: Germany Posts: 189	AMAL Beginner questions I'm playing around with AMOS Pro and have some problems to understand the AMAL sub language. In AMOS Pro manual, p. 07.06.07 is an example of a movement pattern: Code: Load "AMOSPro_Tutorial:Objects/Sprites.abk" : Get Sprite Palette SP=4 : Sprite SP,128,100,7 C$="For R0=1 To 300; Let X=X+1; Next R0;" Amal SP,C$ : Amal On SP Direct This moves the sprite horizontally towards the right border. Now I tried to get this movement repeated endlessly by changing the AMAL string in Code: C$="Start: For R0=1 To 300; Let X=X+1; Next R0; Jump Start" But it didn't work. Does anyone know how to repeat a simple move forever (or until a termination condition)?

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19 March 2023, 13:24	#2
Honitos Registered User Join Date: Nov 2019 Location: Celle / Germany Posts: 145	I guess you just have to reset the X-Position of the Sprite. It does not work because the variable X is increased endless.

19 March 2023, 19:16	#3
thyslo Registered User Join Date: Apr 2018 Location: Germany Posts: 189	This solved it, thank you:-)

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