Create a big boss

[picachu]

Good, again I'm around. My question is, how could you create a big boss, which has a size of 128 × 64 for example and which moves from one side to another etc. I thought that maybe it would be composing it in pieces of 16x16 but how could I synchronize all the movements of this ?? By the way, the forum lately is very stopped. Greetings and thanks.

[alessandro]

I did it once with the Wanyudo boss of the second level of Seto Taisho Vs Yokai. Wanyudo is composed with six sprites of 24 x 16 pixel each, and moves from left to right and vice versa while shooting energy rays. That makes him 48 x 48 pixel. A boss of a size like 120 x 64 would be composed by 20 simultaneously co-ordinated 24 x 16 sprites on the screen: that would be unfeasible, considering that with the AGD sprite engine you can display a maximum of 12 sprites on the screen on any given moment.

You can see him in action in this video at 13:22. The video shows noticeable tear due to the lesser frame rate of videos on YouTube, on a PC monitor or LED TV you would see much less of it, 

[picachu]

Thank you very much to Alessandro for responding. The size you indicate was just a random example. Your boss is a good example to follow. You say there are 6 sprites of 24x16 ?? and how you design this, if the maximum is 16x16. And the big question, how did you synchronize the movements of all the blocks that formed the boss?

Greetings and thanks!!!

[alessandro]

You are welcome picachu  From AGD 4.0 on, sprites can be either 16 x 16 pixels, or 24 pixel high and 16 wide, but not both in the same AGD project. Sprite height is set in the Miscellaneous menu.

Wanyudo is composed with six sprites of three different types, arranged in two rows of three sprites each. Different PARAMA and PARAMB values are set for each of the three sprite types in the Initialize sprite event, so that they only move between two fixed Y coordinates, to avoid overlapping. In the sprite event script for each of them, the Y value is checked against PARAMA and PARAMB; if Y equals PARAMA, the direction is set to 0 (right), whether if it equals PARAMB, the direction is set to 1 (left).

For example, if in the Initialize sprite event we have:
IF TYPE = 3
LET PARAMA = 64
LET PARAMB = 144
ENDIF
and in the sprite type 3 event script we have:
IF DIRECTION = 0
SPRITERIGHT
IF Y = PARAMB
LET DIRECTION 1
ENDIF
IF DIRECTION = 1
SPRITELEFT
IF Y = PARAMA
LET DIRECTION 0
ENDIF
this means sprites of type 3 will only move between the Y coordinates of 64 and 144.

[picachu]

Hi, alejandro, I'm trying to create a sprite with 2 images of 16x16, and when it moves, the jump between the 2 images is noticeable, notably.

Is there a trick to avoid this ??

Thank you.

[alessandro]

Aug 18, 2018 11:30:12 GMT picachu said:

Hi, alejandro, I'm trying to create a sprite with 2 images of 16x16, and when it moves, the jump between the 2 images is noticeable, notably.

Is there a trick to avoid this ??

Thank you.

Hi Picachu,

sorry for being so late in answering you, but first I went on holiday, then I had to deal with several real life issues, returning to work etc.

Could you please provide a snapshot so that I can see the problem myself, and suggest you some changes?

What you are asking to do can be done, but it's no easy task. I did it with Seto Taisho and you won't believe how much headaches it caused me before reaching a satisfactory outcome