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Initialize GameEngine (create empty window)

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Sebastian 2023-08-03 21:20:50 +02:00
parent 8bd9b3bc6b
commit d989edee91
4 changed files with 319 additions and 0 deletions
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39
.gitignore vendored
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@ -100,6 +100,45 @@ fabric.properties
# Editor-based Rest Client
.idea/httpRequests
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
client/.idea/
*.iws
*.iml
*.ipr
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store
# Android studio 3.1+ serialized cache file
.idea/caches/build_file_checksums.ser

149
client/pom.xml Normal file
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@ -0,0 +1,149 @@
<?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>org.example</groupId>
<artifactId>client</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<lwjgl.version>3.3.2</lwjgl.version>
</properties>
<profiles>
<profile>
<id>lwjgl-natives-linux-amd64</id>
<activation>
<os>
<family>unix</family>
<arch>amd64</arch>
</os>
</activation>
<properties>
<lwjgl.natives>natives-linux</lwjgl.natives>
</properties>
</profile>
<profile>
<id>lwjgl-natives-windows-amd64</id>
<activation>
<os>
<family>windows</family>
<arch>amd64</arch>
</os>
</activation>
<properties>
<lwjgl.natives>natives-windows</lwjgl.natives>
</properties>
</profile>
</profiles>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-bom</artifactId>
<version>${lwjgl.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-assimp</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-bgfx</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-glfw</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-nanovg</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-nuklear</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-openal</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-opengl</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-par</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-stb</artifactId>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-assimp</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-bgfx</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-glfw</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-nanovg</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-nuklear</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-openal</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-opengl</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-par</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-stb</artifactId>
<classifier>${lwjgl.natives}</classifier>
</dependency>
</dependencies>
</project>

15
client/src/main/java/core/Main.java Normal file
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@ -0,0 +1,15 @@
package core;
import core.engine.Engine;
public class Main {
private static final Engine gameEngine = new Engine();
public static void main(String[] args) {
}
}

116
client/src/main/java/core/engine/Engine.java Normal file
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@ -0,0 +1,116 @@
package core.engine;
import org.lwjgl.Version;
import org.lwjgl.glfw.GLFWErrorCallback;
import org.lwjgl.glfw.GLFWVidMode;
import org.lwjgl.opengl.GL;
import org.lwjgl.system.MemoryStack;
import java.nio.IntBuffer;
import static org.lwjgl.glfw.Callbacks.glfwFreeCallbacks;
import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.glfw.GLFW.glfwSwapBuffers;
import static org.lwjgl.opengl.GL11.glClearColor;
import static org.lwjgl.opengl.GL11C.*;
import static org.lwjgl.system.MemoryStack.stackPush;
import static org.lwjgl.system.MemoryUtil.NULL;
public class Engine {
private long window;
public Engine() {
System.out.println("Hello LWJGL " + Version.getVersion() + "!");
init();
loop();
// Free the window callbacks and destroy the window
glfwFreeCallbacks(window);
glfwDestroyWindow(window);
// Terminate GLFW and free the error callback
glfwTerminate();
glfwSetErrorCallback(null).free();
}
private void init() {
// Setup an error callback. The default implementation
// will print the error message in System.err.
GLFWErrorCallback.createPrint(System.err).set();
// Initialize GLFW. Most GLFW functions will not work before doing this.
if ( !glfwInit() )
throw new IllegalStateException("Unable to initialize GLFW");
// Configure GLFW
glfwDefaultWindowHints(); // optional, the current window hints are already the default
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // the window will stay hidden after creation
glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // the window will be resizable
// Create the window
window = glfwCreateWindow(300, 300, "Hello World!", NULL, NULL);
if ( window == NULL )
throw new RuntimeException("Failed to create the GLFW window");
// Setup a key callback. It will be called every time a key is pressed, repeated or released.
glfwSetKeyCallback(window, (window, key, scancode, action, mods) -> {
if ( key == GLFW_KEY_ESCAPE && action == GLFW_RELEASE )
glfwSetWindowShouldClose(window, true); // We will detect this in the rendering loop
});
// Get the thread stack and push a new frame
try ( MemoryStack stack = stackPush() ) {
IntBuffer pWidth = stack.mallocInt(1); // int*
IntBuffer pHeight = stack.mallocInt(1); // int*
// Get the window size passed to glfwCreateWindow
glfwGetWindowSize(window, pWidth, pHeight);
// Get the resolution of the primary monitor
GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
// Center the window
glfwSetWindowPos(
window,
(vidmode.width() - pWidth.get(0)) / 2,
(vidmode.height() - pHeight.get(0)) / 2
);
} // the stack frame is popped automatically
// Make the OpenGL context current
glfwMakeContextCurrent(window);
// Enable v-sync
glfwSwapInterval(1);
// Make the window visible
glfwShowWindow(window);
}
private void loop() {
// This line is critical for LWJGL's interoperation with GLFW's
// OpenGL context, or any context that is managed externally.
// LWJGL detects the context that is current in the current thread,
// creates the GLCapabilities instance and makes the OpenGL
// bindings available for use.
GL.createCapabilities();
// Set the clear color
glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
// Run the rendering loop until the user has attempted to close
// the window or has pressed the ESCAPE key.
while ( !glfwWindowShouldClose(window) ) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the framebuffer
glfwSwapBuffers(window); // swap the color buffers
// Poll for window events. The key callback above will only be
// invoked during this call.
glfwPollEvents();
}
}
}