How to Snap to a Grid - История изменений

Patarakin в 11:26, 12 августа 2022

2022-08-12T11:26:57Z

← Предыдущая версия		Версия от 14:26, 12 августа 2022
Строка 1:		Строка 1:
	~~{{expand\|date=August 2018}}~~
	Many [[project]]s require that a [[sprite]] be '''snapped to a grid'''. This is most common in board game simulations, but can be applicable in other projects. The following article will present the [[script]] that will take a set of coordinates and report them as the closest coordinate on an imaginary grid.		Many [[project]]s require that a [[sprite]] be '''snapped to a grid'''. This is most common in board game simulations, but can be applicable in other projects. The following article will present the [[script]] that will take a set of coordinates and report them as the closest coordinate on an imaginary grid.

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	go to x: ((round ((x) / (width))) * (width)) y: ((round ((y) / (width))) * (width))		go to x: ((round ((x) / (width))) * (width)) y: ((round ((y) / (width))) * (width))
	</scratchblocks>		</scratchblocks>
	[[Category:Scripting Tutorials~~\|Snap to a Grid~~]]
			[[Category:Scripting Tutorials]]

Patarakin: 1 версия импортирована

2022-07-21T08:33:14Z

1 версия импортирована

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scratch>CrazyBoy826: squares have equal dimensions

2022-05-12T22:33:07Z

squares have equal dimensions

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{{expand|date=August 2018}}
Many [[project]]s require that a [[sprite]] be '''snapped to a grid'''. This is most common in board game simulations, but can be applicable in other projects. The following article will present the [[script]] that will take a set of coordinates and report them as the closest coordinate on an imaginary grid.

==Mouse==
{{note|The [[variable]] "width" refers to the size of each grid square.}}

The most common use is in games such as Minesweeper, chess, or others which involve a gridded board. The mouse is most often used to detect user input. The following script will snap the sprite to a grid:
<scratchblocks>
when gf clicked
forever
set x to ((round ((mouse x) / (width))) * (width))
set y to ((round ((mouse y) / (width))) * (width))
</scratchblocks>

Optionally, the "set x to ()" and "set y to ()" [[blocks]] can be compressed into a "go to x: () y: ()" block.

To shift the grid left, right, up, or down, simply subtract the change from the respective dimension, and add it at the end of the operation. Here is the general script:

<scratchblocks>
when gf clicked
forever
set x to (((round (((mouse x) - (shift right)) / (width))) * (width)) + (shift right))
set y to (((round (((mouse y) - (shift up)) / (width))) * (width)) + (shift up))
</scratchblocks>

== Keyboard ==
If you're receiving your inputs from the keyboard, the coordinates remain the same, but, instead of using the mouse coordinates, you use the un-snapped x and y value, and then snap the sprite using those points; this means that the sprite's "real" x and y positions are generally stored as variables. For example:

<scratchblocks>
when gf clicked
forever
go to x: ((round ((x) / (width))) * (width)) y: ((round ((y) / (width))) * (width))
</scratchblocks>
[[Category:Scripting Tutorials|Snap to a Grid]]