104 lines
3.5 KiB
Java
104 lines
3.5 KiB
Java
package electrosphere.render;
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import java.nio.IntBuffer;
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import org.lwjgl.BufferUtils;
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import org.lwjgl.glfw.GLFW;
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import org.lwjgl.opengl.GL;
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import org.lwjgl.opengl.GL44;
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import org.lwjgl.system.MemoryStack;
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import org.lwjgl.system.MemoryUtil;
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public class GLFWContext {
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static long window;
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public static void init(){
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//Initializes opengl
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GLFW.glfwInit();
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//Gives hints to glfw to control how opengl will be used
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GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MAJOR, 4);
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GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MINOR, 4);
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GLFW.glfwWindowHint(GLFW.GLFW_OPENGL_PROFILE, GLFW.GLFW_OPENGL_CORE_PROFILE);
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//Creates the window reference object
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window = GLFW.glfwCreateWindow(1920, 1080, "ORPG", GLFW.glfwGetPrimaryMonitor(), MemoryUtil.NULL);
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// Errors for failure to create window (IE: No GUI mode on linux ?)
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if (window == MemoryUtil.NULL) {
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GLFW.glfwTerminate();
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}
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//set resize callback
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// GLFW.glfwSetWindowSizeCallback(window, new GLFWWindowSizeCallbackI(){
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// @Override
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// public void invoke(long window, int width, int height){
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// Globals.WINDOW_HEIGHT = height;
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// Globals.WINDOW_WIDTH = width;
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// }
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// });
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//Makes the window that was just created the current OS-level window context
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GLFW.glfwMakeContextCurrent(window);
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//Maximize it
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GLFW.glfwMaximizeWindow(window);
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//grab actual framebuffer
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int bufferWidth = 0;
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int bufferHeight = 0;
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try(MemoryStack stack = MemoryStack.stackPush()){
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IntBuffer xBuffer = MemoryUtil.memAllocInt(1);
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IntBuffer yBuffer = MemoryUtil.memAllocInt(1);
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GLFW.glfwGetFramebufferSize(window, xBuffer, yBuffer);
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MemoryUtil.memFree(xBuffer);
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MemoryUtil.memFree(yBuffer);
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bufferWidth = xBuffer.get();
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bufferHeight = yBuffer.get();
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}
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//
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// Attack controls callbacks
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//
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//set key callback
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// GLFWContext.glfwSetKeyCallback(window, Globals.controlCallback);
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//set mouse callback
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// GLFWContext.glfwSetMouseButtonCallback(Globals.window, Globals.mouseCallback);
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//get title bar dimensions
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// setTitleBarDimensions();
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//Creates the OpenGL capabilities for the program.
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GL.createCapabilities();
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//This enables Z-buffering so that farther-back polygons are not drawn over nearer ones
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GL44.glEnable(GL44.GL_CULL_FACE);
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GL44.glDepthFunc(GL44.GL_LEQUAL);
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GL44.glEnable(GL44.GL_DEPTH_TEST);
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// Support for transparency
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GL44.glEnable(GL44.GL_BLEND);
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GL44.glBlendFunc(GL44.GL_SRC_ALPHA, GL44.GL_ONE_MINUS_SRC_ALPHA);
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//this disables vsync to make game run faster
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//https://stackoverflow.com/questions/55598376/glfwswapbuffers-is-slow
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GLFW.glfwSwapInterval(0);
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}
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public static void redraw(Mesh[][][] meshes){
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//clear screen
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GL44.glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
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GL44.glClear(GL44.GL_COLOR_BUFFER_BIT | GL44.
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GL_DEPTH_BUFFER_BIT);
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//draw here
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for(int x = 0; x < meshes.length; x++){
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for(int y = 0; y < meshes[0].length; y++){
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for(int z = 0; z < meshes[0][0].length; z++){
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meshes[x][y][z].draw();
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}
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}
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}
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//ending stuff
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GLFW.glfwSwapBuffers(window);
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GLFW.glfwPollEvents();
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}
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}
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