Added a genlayer visualizer debug tool
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Adubbz
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2 changed files with 275 additions and 0 deletions
272
src/main/java/biomesoplenty/client/util/GenLayerVisualizer.java
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272
src/main/java/biomesoplenty/client/util/GenLayerVisualizer.java
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/*******************************************************************************
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* Copyright 2014-2019, the Biomes O' Plenty Team
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*
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* This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License.
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*
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* To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.
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******************************************************************************/
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package biomesoplenty.client.util;
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import net.minecraft.block.Block;
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import net.minecraft.block.state.IBlockState;
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import net.minecraft.init.Biomes;
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import net.minecraft.init.Blocks;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.world.WorldType;
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import net.minecraft.world.biome.Biome;
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import net.minecraft.world.biome.provider.BiomeProviderType;
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import net.minecraft.world.biome.provider.OverworldBiomeProvider;
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import net.minecraft.world.biome.provider.OverworldBiomeProviderSettings;
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import net.minecraft.world.gen.OverworldGenSettings;
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import net.minecraft.world.gen.layer.GenLayer;
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import net.minecraft.world.gen.layer.LayerUtil;
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import net.minecraft.world.storage.WorldInfo;
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import org.lwjgl.glfw.GLFW;
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import org.lwjgl.glfw.GLFWVidMode;
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import org.lwjgl.opengl.*;
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import org.lwjgl.system.MemoryStack;
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import javax.swing.*;
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import java.awt.*;
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import java.nio.IntBuffer;
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import static org.lwjgl.opengl.GL11.*;
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import static org.lwjgl.opengl.GL13.*;
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import static org.lwjgl.opengl.GL15.*;
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import static org.lwjgl.opengl.GL20.*;
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import static org.lwjgl.opengl.GL30.*;
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import static org.lwjgl.system.MemoryStack.stackPush;
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public class GenLayerVisualizer
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{
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private static VisualizerThread visualizerThread;
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public static void run()
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{
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visualizerThread = new VisualizerThread();
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visualizerThread.start();
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}
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private static class VisualizerThread extends Thread
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{
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private static final int WINDOW_WIDTH = 1000;
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private static final int WINDOW_HEIGHT = 1000;
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private static final int CANVAS_WIDTH = 800;
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private static final int CANVAS_HEIGHT = 800;
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private static final String VERTEX_SHADER_SRC =
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"#version 330\n" +
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"layout(location = 0) in vec3 position;\n" +
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"layout(location = 1) in vec2 vertexUV;\n" +
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"out vec2 uv;\n" +
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"void main()\n" +
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"{\n" +
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" gl_Position.xyz = position;\n" +
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" gl_Position.w = 1.0;\n" +
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" uv = vertexUV;\n" +
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"}";
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private static final String FRAGMENT_SHADER_SRC =
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"#version 330\n" +
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"in vec2 uv;\n" +
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"out vec3 color;\n" +
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"uniform sampler2D sampler;\n" +
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"void main()\n" +
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"{\n" +
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" color = texture(sampler, uv).rgb;\n" +
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"}";
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Biome[] biomes = new Biome[CANVAS_WIDTH * CANVAS_HEIGHT];
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private int vertexBuffer = 0;
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private int textureId = 0;
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private void setupOpenGL()
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{
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GL.createCapabilities();
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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int vertexArray = glGenVertexArrays();
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int programId = glCreateProgram();
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glBindVertexArray(vertexArray);
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int vertexShader = makeShader(GL_VERTEX_SHADER, VERTEX_SHADER_SRC);
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int fragmentShader = makeShader(GL_FRAGMENT_SHADER, FRAGMENT_SHADER_SRC);
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glAttachShader(programId, vertexShader);
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glAttachShader(programId, fragmentShader);
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glLinkProgram(programId);
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glUseProgram(programId);
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int[] linked = new int[1];
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glGetProgramiv(programId, GL_LINK_STATUS, linked);
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if (linked[0] == 0)
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{
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throw new RuntimeException("Failed to link shaders! " + glGetProgramInfoLog(programId));
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}
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glDetachShader(programId, vertexShader);
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glDetachShader(programId, fragmentShader);
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glDeleteShader(vertexShader);
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glDeleteShader(fragmentShader);
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float VERTICES[] =
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{
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// Vertex 1 data
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-1.0F, -1.0F, 0.0F,
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-1.0F, 1.0F, 0.0F,
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1.0F, -1.0F, 0.0F,
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// Vertex 2 data
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-1.0F, 1.0F, 0.0F,
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1.0F, 1.0F, 0.0F,
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1.0F, -1.0F, 0.0F,
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// UV 1 data
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0.0F, 0.0F,
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0.0F, 1.0F,
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1.0F, 0.0F,
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// UV 2 data
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0.0F, 1.0F,
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1.0F, 1.0F,
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1.0F, 0.0F
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};
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this.vertexBuffer = glGenBuffers();
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glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
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glBufferData(GL_ARRAY_BUFFER, VERTICES, GL_STATIC_DRAW);
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// Specify the format and the offset of the vertex data (the pointer)
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glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);
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glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 72);
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// Enable the vertex attribute specified by the index
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// This is stored in the currently bound VAO
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glEnableVertexAttribArray(0);
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glEnableVertexAttribArray(1);
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// Create a texture for the screen to be rendered to
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this.textureId = glGenTextures();
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, textureId);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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}
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private void populateBiomeIds()
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{
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OverworldBiomeProviderSettings settingsProvider = BiomeProviderType.VANILLA_LAYERED.createSettings();
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OverworldGenSettings overworldgensettings = settingsProvider.getGeneratorSettings();
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GenLayer biomeGenLayer = LayerUtil.buildOverworldProcedure(0, WorldType.DEFAULT, overworldgensettings)[0];
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Biome[] biomes = biomeGenLayer.generateBiomes(0, 0, CANVAS_WIDTH, CANVAS_HEIGHT, null);
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if (biomes.length > (CANVAS_WIDTH * CANVAS_HEIGHT))
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throw new RuntimeException("Too many biomes! " + biomes.length);
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System.arraycopy(biomes, 0, this.biomes, 0, CANVAS_WIDTH * CANVAS_HEIGHT);
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}
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private int getColourForBiome(Biome biome, BlockPos pos)
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{
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IBlockState topBlock = biome.getSurfaceBuilder().getConfig().getTop();
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if (topBlock.getBlock() == Blocks.GRASS)
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return biome.getGrassColor(pos);
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else if (topBlock.getBlock() == Blocks.WATER || isOcean(biome) || biome == Biomes.RIVER || biome == Biomes.SWAMP)
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return biome.getWaterColor();
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return topBlock.getMapColor(null, pos).colorValue;
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}
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private void genTexture()
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{
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int[] textureColours = new int[CANVAS_WIDTH * CANVAS_HEIGHT];
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// Translate colours into texture colours
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for (int x = 0; x < CANVAS_WIDTH; x++)
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{
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for (int y = 0; y < CANVAS_HEIGHT; y++)
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{
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int color = getColourForBiome(this.biomes[x + y * CANVAS_WIDTH], new BlockPos(x, 0, y));
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color = ((color >> 16) & 0xFF | color & 0xFF00 | (color << 16) & 0xFF0000);
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textureColours[x + ((CANVAS_WIDTH - 1) - y) * CANVAS_HEIGHT] = color;
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}
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}
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glBindTexture(GL_TEXTURE_2D, textureId);
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glTexImage2D(GL_TEXTURE_2D, 0,GL_RGBA, CANVAS_WIDTH, CANVAS_HEIGHT, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureColours);
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}
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public void run()
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{
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// Create the window and setup glfw
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long window = GLFW.glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Gen Layer Visualizer", 0,0 );
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if (window == 0)
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throw new RuntimeException("Failed to create the GLFW window");
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try ( MemoryStack stack = stackPush())
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{
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IntBuffer pWidth = stack.mallocInt(1); // int*
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IntBuffer pHeight = stack.mallocInt(1); // int*
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// Get the window size passed to glfwCreateWindow
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GLFW.glfwGetWindowSize(window, pWidth, pHeight);
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// Get the resolution of the primary monitor
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GLFWVidMode vidmode = GLFW.glfwGetVideoMode(GLFW.glfwGetPrimaryMonitor());
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// Center the window
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GLFW.glfwSetWindowPos(window,
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(vidmode.width() - pWidth.get(0)) / 2,
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(vidmode.height() - pHeight.get(0)) / 2
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);
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}
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GLFW.glfwMakeContextCurrent(window);
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GLFW.glfwSwapInterval(1); // Enable V-Sync
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GLFW.glfwShowWindow(window);
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this.setupOpenGL();
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this.populateBiomeIds();
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while (!GLFW.glfwWindowShouldClose(window))
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{
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GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
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this.genTexture();
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glDrawArrays(GL_TRIANGLES, 0, 6);
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GLFW.glfwSwapBuffers(window); // swap the color buffers
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GLFW.glfwPollEvents();
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}
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}
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private static int makeShader(int type, String source)
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{
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int shader = glCreateShader(type);
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glShaderSource(shader, source);
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glCompileShader(shader);
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int[] compiled = new int[1];
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glGetShaderiv(shader, GL_COMPILE_STATUS, compiled);
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if (compiled[0] == 0)
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{
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throw new RuntimeException("Failed to compile shader! " + glGetShaderInfoLog(shader));
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}
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return shader;
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}
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private static boolean isOcean(Biome biome)
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{
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return biome == Biomes.WARM_OCEAN || biome == Biomes.LUKEWARM_OCEAN || biome == Biomes.OCEAN || biome == Biomes.COLD_OCEAN || biome == Biomes.FROZEN_OCEAN || biome == Biomes.DEEP_WARM_OCEAN || biome == Biomes.DEEP_LUKEWARM_OCEAN || biome == Biomes.DEEP_OCEAN || biome == Biomes.DEEP_COLD_OCEAN || biome == Biomes.DEEP_FROZEN_OCEAN;
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}
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}
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}
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@ -8,6 +8,7 @@
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package biomesoplenty.core;
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import biomesoplenty.client.util.GenLayerVisualizer;
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import biomesoplenty.init.*;
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import net.minecraftforge.fml.DistExecutor;
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import net.minecraftforge.fml.common.Mod;
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@ -35,6 +36,8 @@ public class BiomesOPlenty
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ModBlocks.init();
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ModItems.init();
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ModBiomes.init();
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GenLayerVisualizer.run();
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}
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private void preInit(final FMLPreInitializationEvent event)
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