libgdx绘制矩形方框、绘制矩形、绘制矩形边框

libgdx绘制矩形方框、绘制矩形、绘制矩形边框

package base;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.utils.Disposable;
import com.badlogic.gdx.utils.ScreenUtils;
import org.junit.jupiter.api.Test;

/**
 * @author lingkang
 * created by 2023/11/1
 * 绘制一个矩形，采用4条线组合
 */
public class TestJuXing2 extends ApplicationAdapter {
    @Test
    public void test() {
        Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
        config.setForegroundFPS(30);
        config.setTitle("yzcy");
        config.setWindowedMode(800, 600);
        new Lwjgl3Application(this, config);
    }

    protected SpriteBatch batch;
    private MyRectangle rectangle;

    @Override
    public void create() {
        batch = new SpriteBatch();
        rectangle = new MyRectangle(200, 200, Color.RED);
    }


    @Override
    public void render() {
        // Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); // 清除屏幕
        ScreenUtils.clear(Color.GREEN);
        batch.begin();
        rectangle.draw(batch, 50, 50);
        batch.end();

    }

    /**
     * 方案一：采用4条线组合
     * <pre>
     *     MyRectangle rectangle = new MyRectangle(200, 200, Color.RED);
     *
     *
     *     ScreenUtils.clear(Color.GREEN);
     *     batch.begin();
     *     rectangle.draw(batch, 50, 50);// 绘制
     *     batch.end();
     * </pre>
     * <p>
     * 绘制顺序如下：<br/>
     * <p>
     * 1 2 2 2 2
     * 1       3
     * 1       3
     * 1 4 4 4 3
     */
    class MyRectangle implements Disposable {
        private Texture texture1, texture2, texture3, texture4;
        private int lineWidth = 5;
        private int width, height;

        public MyRectangle(int width, int height, Color color) {
            this.width = width;
            this.height = height;
            Pixmap pixmap1 = new Pixmap(lineWidth, height, Pixmap.Format.RGB888);
            pixmap1.drawLine(0, 0, 0, height);
            pixmap1.setColor(color);
            texture1 = new Texture(pixmap1);

            Pixmap pixmap2 = new Pixmap(width, lineWidth, Pixmap.Format.RGB888);
            pixmap2.drawLine(0, height, width, height);
            pixmap2.setColor(color);
            texture2 = new Texture(pixmap2);

            Pixmap pixmap3 = new Pixmap(lineWidth, height, Pixmap.Format.RGB888);
            pixmap3.drawLine(width, height, width, 0);
            pixmap3.setColor(color);
            texture3 = new Texture(pixmap3);


            Pixmap pixmap4 = new Pixmap(width, lineWidth, Pixmap.Format.RGB888);
            pixmap4.drawLine(0, 0, width, 0);
            pixmap4.setColor(color);
            texture4 = new Texture(pixmap4);

            pixmap1.dispose();
            pixmap2.dispose();
            pixmap3.dispose();
            pixmap4.dispose();
        }

        public void draw(Batch batch, float x, float y) {
            batch.draw(texture1, x, y);
            batch.draw(texture2, x, y + height - lineWidth);
            batch.draw(texture3, x + width, y);
            batch.draw(texture4, x, y);
        }

        @Override
        public void dispose() {
            texture1.dispose();
            texture2.dispose();
            texture3.dispose();
            texture4.dispose();
        }
    }


    @Override
    public void dispose() {
        batch.dispose();
        rectangle.dispose();
    }
}

依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>top.lingkang</groupId>
    <artifactId>yzcy</artifactId>
    <packaging>jar</packaging>
    <version>1.0.0</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <gdx.version>1.12.0</gdx.version>
    </properties>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/com.badlogicgames.gdx/gdx -->
        <dependency>
            <groupId>com.badlogicgames.gdx</groupId>
            <artifactId>gdx</artifactId>
            <version>${gdx.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.badlogicgames.gdx/gdx-backend-lwjgl3 -->
        <dependency>
            <groupId>com.badlogicgames.gdx</groupId>
            <artifactId>gdx-backend-lwjgl3</artifactId>
            <version>${gdx.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.badlogicgames.gdx/gdx-platform -->
        <dependency>
            <groupId>com.badlogicgames.gdx</groupId>
            <artifactId>gdx-platform</artifactId>
            <version>${gdx.version}</version>
            <classifier>natives-desktop</classifier>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.badlogicgames.gdx/gdx-freetype -->
        <dependency>
            <groupId>com.badlogicgames.gdx</groupId>
            <artifactId>gdx-freetype</artifactId>
            <version>${gdx.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.badlogicgames.gdx/gdx-freetype-platform -->
        <dependency>
            <groupId>com.badlogicgames.gdx</groupId>
            <artifactId>gdx-freetype-platform</artifactId>
            <version>${gdx.version}</version>
            <classifier>natives-desktop</classifier>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <version>5.10.1</version>
            <scope>test</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.30</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>17</source>
                    <target>17</target>
                    <!-- 编译后保持方法形参名称不变 -->
                    <!--<compilerArgs>
                        <arg>-parameters</arg>
                    </compilerArgs>-->
                </configuration>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>tencent</id>
            <name>tencent</name>
            <layout>default</layout>
            <url>http://mirrors.cloud.tencent.com/nexus/repository/maven-public/</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
            <releases>
                <enabled>true</enabled>
            </releases>
        </repository>
        <repository>
            <id>nexus1</id>
            <name>Nexus1</name>
            <layout>default</layout>
            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
            <releases>
                <enabled>false</enabled>
            </releases>
        </repository>
        <repository>
            <id>nexus</id>
            <name>Nexus</name>
            <layout>default</layout>
            <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
            <releases>
                <enabled>false</enabled>
            </releases>
        </repository>
        <repository>
            <id>aliyunmaven</id>
            <url>https://maven.aliyun.com/repository/public</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>
</project>