RegisterThe wagon is a large enemy sprite, and I want to be able to make it move to the right while also moving the camera and showing text boxes. If it's possible, I also plan on animating the wagon wheels.
Moving Slices
Mon Aug 01, 2011 2:08 am 
Would it be best to use the PUT SLICE command in a while loop in order to make the wagon below move across the screen, or is there a better way to do this?
The wagon is a large enemy sprite, and I want to be able to make it move to the right while also moving the camera and showing text boxes. If it's possible, I also plan on animating the wagon wheels.
The wagon is a large enemy sprite, and I want to be able to make it move to the right while also moving the camera and showing text boxes. If it's possible, I also plan on animating the wagon wheels.
Mon Aug 01, 2011 7:37 am
Put slice would work perfectly well, but there is a slightly easier way: nightly versions have several commands for moving slices, including:
(see e.g. move slice by)
In order to animate the wagon, use replace large enemy sprite in a loop. (If you had been using walkabouts or something else with multiple frames, then you could also use set sprite frame to animate). For example:
There's no command to make the camera follow a slice. Use pancamera or focuscamera instead.
EDIT: Oh, you want to show textboxes at the same time. If you want to manually show and advance the textboxes, that makes things much trickier. You change the wheel animation loop into a timer-triggered script instead.
Code:
move slice by (slice, x offset, y offset, ticks)
move slice to (slice, x, y, ticks)
set slice velocity (slice, x velocity, y velocity, ticks)
move slice to (slice, x, y, ticks)
set slice velocity (slice, x velocity, y velocity, ticks)
(see e.g. move slice by)
In order to animate the wagon, use replace large enemy sprite in a loop. (If you had been using walkabouts or something else with multiple frames, then you could also use set sprite frame to animate). For example:
Code:
variable (sl)
#... load and position the wagon slice, store the handle in sl ...
variable (i)
move slice by (sl, 80, 0, 40) #move at 2 pixels per tick
# change the frame every 2 ticks, for 40 ticks
for (i, 0, 9) do (
replace large enemy sprite (sl, SPRITE 1, PAL 1)
wait (2)
replace large enemy sprite (sl, SPRITE 2, PAL 2)
wait (2)
)
#... load and position the wagon slice, store the handle in sl ...
variable (i)
move slice by (sl, 80, 0, 40) #move at 2 pixels per tick
# change the frame every 2 ticks, for 40 ticks
for (i, 0, 9) do (
replace large enemy sprite (sl, SPRITE 1, PAL 1)
wait (2)
replace large enemy sprite (sl, SPRITE 2, PAL 2)
wait (2)
)
There's no command to make the camera follow a slice. Use pancamera or focuscamera instead.
EDIT: Oh, you want to show textboxes at the same time. If you want to manually show and advance the textboxes, that makes things much trickier. You change the wheel animation loop into a timer-triggered script instead.
Tue Aug 02, 2011 3:16 am
TMC wrote:
Put slice would work perfectly well, but there is a slightly easier way: nightly versions have several commands for moving slices
Those would make things much easier, but does editing in a nightly build prevent an .rpg file from being loaded in a stable version of GAME? If so then I would be hesitant to edit in a nightly build.
However, I tried your suggestions, but modified them just a bit. Instead of replace large enemy sprite, I loaded two slice collections, parented them to a container, and used the slice to back command to animate them.
This seemed easier than replace large enemy sprite because the wagon now consists of two large enemy sprites put together, instead of just the one from before. I needed something to pull the wagon
:
The animation works, but the slices aren't moving to the right. Do you happen to see what's causing the problem?
Code:
plotscript,wagon_train_rescue,begin
variable (wagon,wagonx,wagony,frame1,frame2,animate)
wagon := create container (160,160)
wagonx := slice x (wagon)
wagony := slice y (wagon)
frame1 := load slice collection (1)
frame2 := load slice collection (2)
put slice (wagon,0,9)
set parent (frame1,wagon)
set parent (frame2,wagon)
slice to back (frame2)
set tag (20,on)
while (check tag (20) == on)
do (
put slice (wagon,wagonx+1,wagony)
slice to back (frame1)
wait (5)
slice to back (frame2)
wait (5)
)
set tag (20,off)
end
variable (wagon,wagonx,wagony,frame1,frame2,animate)
wagon := create container (160,160)
wagonx := slice x (wagon)
wagony := slice y (wagon)
frame1 := load slice collection (1)
frame2 := load slice collection (2)
put slice (wagon,0,9)
set parent (frame1,wagon)
set parent (frame2,wagon)
slice to back (frame2)
set tag (20,on)
while (check tag (20) == on)
do (
put slice (wagon,wagonx+1,wagony)
slice to back (frame1)
wait (5)
slice to back (frame2)
wait (5)
)
set tag (20,off)
end
Thank you for your help, by the way
Tue Aug 02, 2011 7:44 am
Yes, you shouldn't try to switch back to a previous version.
You need to actually increment the wagonx variable:
However, that script would move the wagon extremely slowly, just 1 pixel per 10 ticks (less than 2 pixels per second). You want the wagon to continue to move during the "wait (5)" commands. You could do that using timers, or by using a custom wait script, for example:
Also, the "set tag (20,off)" at the end of your script does nothing, since the tag has to be off for the while loop to exit.
You need to actually increment the wagonx variable:
Code:
wagonx += 1
put slice (wagon,wagonx,wagony)
put slice (wagon,wagonx,wagony)
However, that script would move the wagon extremely slowly, just 1 pixel per 10 ticks (less than 2 pixels per second). You want the wagon to continue to move during the "wait (5)" commands. You could do that using timers, or by using a custom wait script, for example:
Code:
script, wagon wait, wagon, ticks, begin
variable (i)
for (i, 1, ticks) do (
wait (1)
set slice x (wagon, slice x (wagon) + 1)
)
end
variable (i)
for (i, 1, ticks) do (
wait (1)
set slice x (wagon, slice x (wagon) + 1)
)
end
Code:
while (check tag (20) == on)
do (
slice to back (frame1)
wagon wait (wagon, 5)
slice to back (frame2)
wagon wait (wagon, 5)
)
do (
slice to back (frame1)
wagon wait (wagon, 5)
slice to back (frame2)
wagon wait (wagon, 5)
)
Also, the "set tag (20,off)" at the end of your script does nothing, since the tag has to be off for the while loop to exit.
Thu Aug 04, 2011 3:14 am
Ha ha, I thought I was incrementing the wagonx variable. Looks like I was doing it wrong.
I tried your custom wait script and it works great.
Thanks for the help! I feel slice-savvy now
I tried your custom wait script and it works great.
Thanks for the help! I feel slice-savvy now