MapEngine

Description

MapEngine is a map library plugin for paper servers. It provides a simple API to create maps with custom content. Using lightweight and asynchronous techniques, MapEngine has a very low impact on server performance.

Features

• Pipelined API for custom pipelines
• Asynchronous rendering
• Completely packet based
• Optional dithering (Floyd-Steinberg)
• Groups as z-layer interpretation for saving immense network traffic
• Per player buffering, only the changed pixels are sent to the player
• Optional packet bundling prevents tearing
• Drawing utilities (text, components, lines, triangles, rectangles, circles, ellipses, polygons)

Color Conversion Cache Performance Graph

Live streaming via RTMP on maps

This is an example of a live stream on a map. The stream is played on a 7x4 map array. The Stream source is 1920x1080@20 streamed with OBS.

Floyd Sternberg dithering

This is an example of a map with Floyd-Steinberg dithering enabled. The stream is played on a 7x4 map array. The Stream source is 1920x1080@20 streamed with OBS.

Javadoc

A hosted version of the javadoc can be found here.

Support

Server Version	Supported
Paper 1.21.3	✔️
Paper 1.21.2	✔️
Paper 1.21.1	✔️
Paper 1.21	✔️
Paper 1.20.x	✔️
Paper 1.19.4	✔️
Paper 1.19.3	✔️

Usage

MapEngine has to be added as a dependency to the plugin.yml regardless of the build system used.

Maven

<repositories>
    <repository>
        <id>tjcserver</id>
        <url>https://repo.thejocraft.net/releases/</url>
    </repository>
</repositories>

<dependencies>
    <dependency>
        <groupId>de.pianoman911</groupId>
        <artifactId>mapengine-api</artifactId>
        <version>1.8.3</version>
        <scope>provided</scope>
    </dependency>
</dependencies>

Gradle (groovy)

repositories {
    maven {
        url = 'https://repo.thejocraft.net/releases/'
        name = 'tjcserver'
    }
}

dependencies {
    compileOnly 'de.pianoman911:mapengine-api:1.8.3'
}

Gradle (kotlin)

repositories {
    maven("https://repo.thejocraft.net/releases/") {
        name = "tjcserver"
    }
}

dependencies {
    compileOnly("de.pianoman911:mapengine-api:1.8.3")
}

Example

public class Bar {

    // getting the api instance
    private static final MapEngineApi MAP_ENGINE = Bukkit.getServicesManager().load(MapEngineApi.class);

    public void foo(BufferedImage image, BlockVector cornerA, BlockVector cornerB, BlockFace facing, Player viewer) {
        // create a map display instance
        IMapDisplay display = MAP_ENGINE.displayProvider().createBasic(cornerA, cornerB, facing);
        display.spawn(viewer); // spawn the map display for the player

        // create an input pipeline element
        // this object can also be used to draw simple shapes and text
        IDrawingSpace input = MAP_ENGINE.pipeline().createDrawingSpace(display);

        // draw the image to the input pipeline element
        input.image(image, 0, 0);

        // draw a triangle
        input.triangle(0, 0, 10, 10, 20, 0, 0xff0000ff);

        // add a player to the pipeline context,
        // making the player receive the map
        input.ctx().receivers().add(viewer);

        // enable floyd-steinberg dithering
        input.ctx().converter(Converter.FLOYD_STEINBERG);

        // enable per player buffering
        input.ctx().buffering(true);

        // flush the pipeline
        // the drawing space can be reused
        input.flush();
    }
}

More detailed examples can be found in the TheJoCraftNET/MapEngineExamples repository.

Building

1. Clone the project (git clone https://github.com/TheJoCraftNET/MapEngine.git)
2. Go to the cloned directory (cd MapEngine)
3. Build the Jar (./gradlew build on Linux/MacOS, gradlew build on Windows)

The plugin jar can be found in the build → libs directory