Patarakin: 1 версия импортирована

2022-07-21T08:33:17Z

1 версия импортирована

← Предыдущая версия		Версия от 11:33, 21 июля 2022
(нет различий)

scratch>TheTrillion: In the setup section I added the MB/CB that were used. I remove 1st and 2nd person. I also made some minor fixes.

2021-04-12T04:41:13Z

In the setup section I added the MB/CB that were used. I remove 1st and 2nd person. I also made some minor fixes.

Новая страница

A '''pen scrolling''' engine is a scrolling engine that uses the [[Pen Extension]].

== Setup ==
Create these [[variable]]s:

<scratchblocks>
(Scroll X)
(Scroll Y)
(X Vel)
(Y Vel)
</scratchblocks>

Create these [[My Blocks|custom blocks]]:

<sb>
draw stage::custom
</sb>
<br/>
<sb>
draw player::custom
</sb>
<br/>
<sb>
controls::custom
</sb>
<br/>
<sb>
go to x: [] y: [] with scroll::custom
</sb>
== Scripts ==
To start off, create the main [[script]].

<scratchblocks>
when green flag clicked
hide
set [Scroll X v] to [0]
set [Scroll Y v] to [0]
set [X Vel v] to [0]
set [X Vel v] to [0]
forever
erase all // Reset the stage
draw stage :: custom // This will be explained later
draw player :: custom // This will be explained later
controls :: custom // This will be explained later
end
</scratchblocks>

Now, add the control script.

<scratchblocks>
define controls
change [X Vel v] by (<key (right arrow v) pressed?> - <key (left arrow v) pressed?>)
change [Y Vel v] by (<key (up arrow v) pressed?> - <key (down arrow v) pressed?>)
set [X Vel v] to ((X Vel) * [0.9])
set [Y Vel v] to ((Y Vel) * [0.9])
change [Scroll X v] by (X Vel)
change [Scroll Y v] by (Y Vel)
</scratchblocks>

Now the important part, the [[stage]].

<scratchblocks>
define draw stage // Make sure this is "Run Without Screen Refresh".
set pen size to (5)
set pen color to [#32a852]
go to x: [50] y: [50] with scroll :: custom
pen down
go to x: [50] y: [-50] with scroll :: custom
go to x: [-50] y: [-50] with scroll :: custom
go to x: [-50] y: [50] with scroll :: custom
go to x: [50] y: [50] with scroll :: custom
pen up

define go to x: (x) y: (y) with scroll
go to x: ((x) - (Scroll X)) y: ((y) - (Scroll Y)
</scratchblocks>

Now to draw the player:

<scratchblocks>
define draw player // Make sure this is set to "Run Without Screen Refresh".
go to x: (0) y: (0)
set pen size to (40)
set pen color to [#0400ff]
pen down
pen up
</scratchblocks>

Now the pen scrolling engine is complete.

[[Category:Scripting Tutorials]]

Pen Scrolling - История изменений

Patarakin: 1 версия импортирована

scratch>TheTrillion: In the setup section I added the MB/CB that were used. I remove 1st and 2nd person. I also made some minor fixes.