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https://github.com/earlygrey/shapedrawer
A library for libGDX that draws simple shapes using a batch.
https://github.com/earlygrey/shapedrawer
cross-platform drawing game java libgdx shape shape-drawer shapes
Last synced: about 2 months ago
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A library for libGDX that draws simple shapes using a batch.
- Host: GitHub
- URL: https://github.com/earlygrey/shapedrawer
- Owner: earlygrey
- License: mit
- Created: 2019-08-08T11:33:24.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2024-03-14T06:19:42.000Z (6 months ago)
- Last Synced: 2024-06-19T03:08:39.954Z (3 months ago)
- Topics: cross-platform, drawing, game, java, libgdx, shape, shape-drawer, shapes
- Language: Java
- Homepage:
- Size: 290 KB
- Stars: 181
- Watchers: 4
- Forks: 32
- Open Issues: 10
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGES
- License: LICENSE
Awesome Lists containing this project
- awesome-libgdx - Shape Drawer - A performant alternative to ShapeRenderer that avoids Batch flushing. (Resources / Visual Effects)
README
# Shape Drawer
[](https://jitpack.io/#space.earlygrey/shapedrawer)
---
A library for [libGDX](https://github.com/libgdx/libgdx), an open-source game development application framework written in java.
Draws simple shapes like libGDX's [ShapeRenderer](https://javadoc.io/static/com.badlogicgames.gdx/gdx/1.11.0/com/badlogic/gdx/graphics/glutils/ShapeRenderer.html) does, but uses a Batch to perform the drawing. This means it can be used in between `Batch#begin()` and `Batch#end()` without needing to flush the Batch.
Comes with overloaded methods to draw lines, paths, ellipses, regular polygons and rectangles.
Just needs to be provided with a Batch and a TextureRegion. However, note that if you want to draw filled shapes, it is more efficient to use a batch that implements [PolygonBatch](https://javadoc.io/static/com.badlogicgames.gdx/gdx/1.11.0/com/badlogic/gdx/graphics/g2d/PolygonBatch.html) (eg a [PolygonSpriteBatch](https://javadoc.io/static/com.badlogicgames.gdx/gdx/1.11.0/com/badlogic/gdx/graphics/g2d/PolygonSpriteBatch.html)) instead of a Batch that does not (eg a [SpriteBatch](https://javadoc.io/static/com.badlogicgames.gdx/gdx/1.11.0/com/badlogic/gdx/graphics/g2d/SpriteBatch.html)).
---
## Including in Project
To use this in your gradle project, add the version number and jitpack repository information to your root build.gradle file:
```groovy
allprojects {
ext {
...
shapedrawerVersion = '2.5.0'
}
repositories {
...
maven { url 'https://jitpack.io' }
}
}
```
And in your core project add the dependency:
```groovy
dependencies {
implementation "space.earlygrey:shapedrawer:$shapedrawerVersion"
}
```
For HTML5/GWT support, add the dependency to the html project:
```groovy
project(":html") {
apply plugin: "gwt"
apply plugin: "war"
dependencies {
...
implementation "space.earlygrey:shapedrawer:$shapedrawerVersion:sources"
}
}
```
And add the following line to the GdxDefinition.gwt.xml file in the HTML project:
```xml
```
See the [jitpack website](https://jitpack.io/#space.earlygrey/shapedrawer) for more info.
Alternatively, if you're using [gdx-liftoff](https://github.com/tommyettinger/gdx-liftoff) to create your project you can find shape drawer under the "third-party" tab.
## Usage
To create a ShapeDrawer instance you just need a Batch and a TextureRegion. Typically this is a single white pixel so that you can easily colour it, and is best packed into an atlas with your other textures.
To instantiate a ShapeDrawer, use:
```java
ShapeDrawer drawer = new ShapeDrawer(batch, region);
```
And to use it, simply call its drawing methods in between `Batch#begin()` and `Batch#end()`. Something like this:
```java
batch.begin();
drawer.line(0, 0, 100, 100);
batch.end();
```
That's it!
---
Check the [wiki](https://github.com/earlygrey/shapedrawer/wiki) for more info, including:
* [Using Shape Drawer](https://github.com/earlygrey/shapedrawer/wiki/Using-Shape-Drawer)
* [Shapes](https://github.com/earlygrey/shapedrawer/wiki/Shapes)
* [Join Types](https://github.com/earlygrey/shapedrawer/wiki/Join-Types)
* [Pixel Snapping](https://github.com/earlygrey/shapedrawer/wiki/Pixel-Snapping)
---
Test application uses the [Commodore 64 UI Skin](https://ray3k.wordpress.com/artwork/commodore-64-ui-skin-for-libgdx/) created by Raymond "Raeleus" Buckley under the [CC BY license](https://creativecommons.org/licenses/by/4.0/). [Check out the others!](https://ray3k.wordpress.com/artwork/)