BetterEnd/src/main/java/ru/betterend/mixin/client/WorldRendererMixin.java
2021-01-03 00:49:16 +03:00

419 lines
14 KiB
Java

package ru.betterend.mixin.client;
import java.util.Random;
import org.lwjgl.opengl.GL11;
import org.spongepowered.asm.mixin.Final;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import com.mojang.blaze3d.systems.RenderSystem;
import net.fabricmc.loader.api.FabricLoader;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gl.VertexBuffer;
import net.minecraft.client.render.BackgroundRenderer;
import net.minecraft.client.render.BufferBuilder;
import net.minecraft.client.render.BufferBuilderStorage;
import net.minecraft.client.render.SkyProperties;
import net.minecraft.client.render.Tessellator;
import net.minecraft.client.render.VertexFormat;
import net.minecraft.client.render.VertexFormats;
import net.minecraft.client.render.WorldRenderer;
import net.minecraft.client.texture.TextureManager;
import net.minecraft.client.util.math.MatrixStack;
import net.minecraft.client.util.math.Vector3f;
import net.minecraft.client.world.ClientWorld;
import net.minecraft.util.Identifier;
import net.minecraft.util.math.Quaternion;
import ru.betterend.BetterEnd;
import ru.betterend.client.ClientOptions;
import ru.betterend.util.BackgroundInfo;
import ru.betterend.util.MHelper;
@Mixin(WorldRenderer.class)
public class WorldRendererMixin {
private static final Identifier NEBULA_1 = BetterEnd.makeID("textures/sky/nebula_2.png");
private static final Identifier NEBULA_2 = BetterEnd.makeID("textures/sky/nebula_3.png");
private static final Identifier HORIZON = BetterEnd.makeID("textures/sky/nebula_1.png");
private static final Identifier STARS = BetterEnd.makeID("textures/sky/stars.png");
private static final Identifier FOG = BetterEnd.makeID("textures/sky/fog.png");
private static VertexBuffer stars1;
private static VertexBuffer stars2;
private static VertexBuffer stars3;
private static VertexBuffer stars4;
private static VertexBuffer nebulas1;
private static VertexBuffer nebulas2;
private static VertexBuffer horizon;
private static VertexBuffer fog;
private static Vector3f axis1;
private static Vector3f axis2;
private static Vector3f axis3;
private static Vector3f axis4;
private static float time;
private static boolean directOpenGL = false;
@Shadow
@Final
private MinecraftClient client;
@Shadow
@Final
private TextureManager textureManager;
@Shadow
private ClientWorld world;
@Shadow
private int ticks;
@Inject(method = "<init>*", at = @At("TAIL"))
private void onInit(MinecraftClient client, BufferBuilderStorage bufferBuilders, CallbackInfo info) {
initStars();
Random random = new Random(131);
axis1 = new Vector3f(random.nextFloat(), random.nextFloat(), random.nextFloat());
axis2 = new Vector3f(random.nextFloat(), random.nextFloat(), random.nextFloat());
axis3 = new Vector3f(random.nextFloat(), random.nextFloat(), random.nextFloat());
axis4 = new Vector3f(random.nextFloat(), random.nextFloat(), random.nextFloat());
axis1.normalize();
axis2.normalize();
axis3.normalize();
axis4.normalize();
directOpenGL = FabricLoader.getInstance().isModLoaded("optifabric") || FabricLoader.getInstance().isModLoaded("immersive_portals");
}
@Inject(method = "renderSky", at = @At("HEAD"), cancellable = true)
private void renderBetterEndSky(MatrixStack matrices, float tickDelta, CallbackInfo info) {
if (ClientOptions.isCustomSky() && client.world.getSkyProperties().getSkyType() == SkyProperties.SkyType.END) {
time = (ticks % 360000) * 0.001F;
BackgroundRenderer.setFogBlack();
RenderSystem.enableTexture();
if (directOpenGL) {
GL11.glEnable(GL11.GL_ALPHA_TEST);
GL11.glAlphaFunc(516, 0.0F);
GL11.glEnable(GL11.GL_BLEND);
RenderSystem.depthMask(false);
}
else {
RenderSystem.enableAlphaTest();
RenderSystem.alphaFunc(516, 0.0F);
RenderSystem.enableBlend();
}
float blindA = 1F - BackgroundInfo.blindness;
if (blindA > 0) {
matrices.push();
matrices.multiply(new Quaternion(0, time, 0, true));
textureManager.bindTexture(HORIZON);
renderBuffer(matrices, horizon, VertexFormats.POSITION_TEXTURE, 0.77F, 0.31F, 0.73F, 0.7F * blindA);
matrices.pop();
matrices.push();
matrices.multiply(new Quaternion(0, -time, 0, true));
textureManager.bindTexture(NEBULA_1);
renderBuffer(matrices, nebulas1, VertexFormats.POSITION_TEXTURE, 0.77F, 0.31F, 0.73F, 0.2F * blindA);
matrices.pop();
matrices.push();
matrices.multiply(new Quaternion(0, time * 2, 0, true));
textureManager.bindTexture(NEBULA_2);
renderBuffer(matrices, nebulas2, VertexFormats.POSITION_TEXTURE, 0.77F, 0.31F, 0.73F, 0.2F * blindA);
matrices.pop();
textureManager.bindTexture(STARS);
matrices.push();
matrices.multiply(axis3.getDegreesQuaternion(time));
renderBuffer(matrices, stars3, VertexFormats.POSITION_TEXTURE, 0.77F, 0.31F, 0.73F, 0.6F * blindA);
matrices.pop();
matrices.push();
matrices.multiply(axis4.getDegreesQuaternion(time * 2));
renderBuffer(matrices, stars4, VertexFormats.POSITION_TEXTURE, 1F, 1F, 1F, 0.6F * blindA);
matrices.pop();
}
float a = (BackgroundInfo.fog - 1F);
if (a > 0) {
if (a > 1) a = 1;
textureManager.bindTexture(FOG);
renderBuffer(matrices, fog, VertexFormats.POSITION_TEXTURE, BackgroundInfo.red, BackgroundInfo.green, BackgroundInfo.blue, a);
}
RenderSystem.disableTexture();
if (blindA > 0) {
matrices.push();
matrices.multiply(new Quaternion(axis1, time * 3, true));
renderBuffer(matrices, stars1, VertexFormats.POSITION, 1, 1, 1, 0.6F * blindA);
matrices.pop();
matrices.push();
matrices.multiply(new Quaternion(axis2, time * 2, true));
renderBuffer(matrices, stars2, VertexFormats.POSITION, 0.95F, 0.64F, 0.93F, 0.6F * blindA);
matrices.pop();
}
RenderSystem.enableTexture();
RenderSystem.depthMask(true);
info.cancel();
}
}
private void renderBuffer(MatrixStack matrices, VertexBuffer buffer, VertexFormat format, float r, float g, float b, float a) {
RenderSystem.color4f(r, g, b, a);
buffer.bind();
format.startDrawing(0L);
buffer.draw(matrices.peek().getModel(), 7);
VertexBuffer.unbind();
format.endDrawing();
}
private void initStars() {
BufferBuilder buffer = Tessellator.getInstance().getBuffer();
stars1 = buildBufferStars(buffer, stars1, 0.1, 0.30, 3500, 41315);
stars2 = buildBufferStars(buffer, stars2, 0.1, 0.35, 2000, 35151);
stars3 = buildBufferUVStars(buffer, stars3, 0.4, 1.2, 1000, 61354);
stars4 = buildBufferUVStars(buffer, stars4, 0.4, 1.2, 1000, 61355);
nebulas1 = buildBufferFarFog(buffer, nebulas1, 40, 60, 30, 11515);
nebulas2 = buildBufferFarFog(buffer, nebulas2, 40, 60, 10, 14151);
horizon = buildBufferHorizon(buffer, horizon);
fog = buildBufferFog(buffer, fog);
}
private VertexBuffer buildBufferStars(BufferBuilder bufferBuilder, VertexBuffer buffer, double minSize, double maxSize, int count, long seed) {
if (buffer != null) {
buffer.close();
}
buffer = new VertexBuffer(VertexFormats.POSITION);
makeStars(bufferBuilder, minSize, maxSize, count, seed);
bufferBuilder.end();
buffer.upload(bufferBuilder);
return buffer;
}
private VertexBuffer buildBufferUVStars(BufferBuilder bufferBuilder, VertexBuffer buffer, double minSize, double maxSize, int count, long seed) {
if (buffer != null) {
buffer.close();
}
buffer = new VertexBuffer(VertexFormats.POSITION_TEXTURE);
makeUVStars(bufferBuilder, minSize, maxSize, count, seed);
bufferBuilder.end();
buffer.upload(bufferBuilder);
return buffer;
}
private VertexBuffer buildBufferFarFog(BufferBuilder bufferBuilder, VertexBuffer buffer, double minSize, double maxSize, int count, long seed) {
if (buffer != null) {
buffer.close();
}
buffer = new VertexBuffer(VertexFormats.POSITION_TEXTURE);
makeFarFog(bufferBuilder, minSize, maxSize, count, seed);
bufferBuilder.end();
buffer.upload(bufferBuilder);
return buffer;
}
private VertexBuffer buildBufferHorizon(BufferBuilder bufferBuilder, VertexBuffer buffer) {
if (buffer != null) {
buffer.close();
}
buffer = new VertexBuffer(VertexFormats.POSITION_TEXTURE);
makeCylinder(bufferBuilder, 16, 50, 100);
bufferBuilder.end();
buffer.upload(bufferBuilder);
return buffer;
}
private VertexBuffer buildBufferFog(BufferBuilder bufferBuilder, VertexBuffer buffer) {
if (buffer != null) {
buffer.close();
}
buffer = new VertexBuffer(VertexFormats.POSITION_TEXTURE);
makeCylinder(bufferBuilder, 16, 50, 70);
bufferBuilder.end();
buffer.upload(bufferBuilder);
return buffer;
}
private void makeStars(BufferBuilder buffer, double minSize, double maxSize, int count, long seed) {
Random random = new Random(seed);
buffer.begin(7, VertexFormats.POSITION);
for (int i = 0; i < count; ++i) {
double posX = random.nextDouble() * 2.0 - 1.0;
double posY = random.nextDouble() * 2.0 - 1.0;
double posZ = random.nextDouble() * 2.0 - 1.0;
double size = MHelper.randRange(minSize, maxSize, random);
double length = posX * posX + posY * posY + posZ * posZ;
if (length < 1.0 && length > 0.001) {
length = 1.0 / Math.sqrt(length);
posX *= length;
posY *= length;
posZ *= length;
double j = posX * 100.0;
double k = posY * 100.0;
double l = posZ * 100.0;
double m = Math.atan2(posX, posZ);
double n = Math.sin(m);
double o = Math.cos(m);
double p = Math.atan2(Math.sqrt(posX * posX + posZ * posZ), posY);
double q = Math.sin(p);
double r = Math.cos(p);
double s = random.nextDouble() * Math.PI * 2.0;
double t = Math.sin(s);
double u = Math.cos(s);
for (int v = 0; v < 4; ++v) {
double x = (double) ((v & 2) - 1) * size;
double y = (double) ((v + 1 & 2) - 1) * size;
double aa = x * u - y * t;
double ab = y * u + x * t;
double ad = aa * q + 0.0 * r;
double ae = 0.0 * q - aa * r;
double af = ae * n - ab * o;
double ah = ab * n + ae * o;
buffer.vertex(j + af, k + ad, l + ah).next();
}
}
}
}
private void makeUVStars(BufferBuilder buffer, double minSize, double maxSize, int count, long seed) {
Random random = new Random(seed);
buffer.begin(7, VertexFormats.POSITION_TEXTURE);
for (int i = 0; i < count; ++i) {
double posX = random.nextDouble() * 2.0 - 1.0;
double posY = random.nextDouble() * 2.0 - 1.0;
double posZ = random.nextDouble() * 2.0 - 1.0;
double size = MHelper.randRange(minSize, maxSize, random);
double length = posX * posX + posY * posY + posZ * posZ;
if (length < 1.0 && length > 0.001) {
length = 1.0 / Math.sqrt(length);
posX *= length;
posY *= length;
posZ *= length;
double j = posX * 100.0;
double k = posY * 100.0;
double l = posZ * 100.0;
double m = Math.atan2(posX, posZ);
double n = Math.sin(m);
double o = Math.cos(m);
double p = Math.atan2(Math.sqrt(posX * posX + posZ * posZ), posY);
double q = Math.sin(p);
double r = Math.cos(p);
double s = random.nextDouble() * Math.PI * 2.0;
double t = Math.sin(s);
double u = Math.cos(s);
int pos = 0;
float minV = random.nextInt(4) / 4F;
for (int v = 0; v < 4; ++v) {
double x = (double) ((v & 2) - 1) * size;
double y = (double) ((v + 1 & 2) - 1) * size;
double aa = x * u - y * t;
double ab = y * u + x * t;
double ad = aa * q + 0.0 * r;
double ae = 0.0 * q - aa * r;
double af = ae * n - ab * o;
double ah = ab * n + ae * o;
float texU = (pos >> 1) & 1;
float texV = (((pos + 1) >> 1) & 1) / 4F + minV;
pos ++;
buffer.vertex(j + af, k + ad, l + ah).texture(texU, texV).next();
}
}
}
}
private void makeFarFog(BufferBuilder buffer, double minSize, double maxSize, int count, long seed) {
Random random = new Random(seed);
buffer.begin(7, VertexFormats.POSITION_TEXTURE);
for (int i = 0; i < count; ++i) {
double posX = random.nextDouble() * 2.0 - 1.0;
double posY = random.nextDouble() - 0.5;
double posZ = random.nextDouble() * 2.0 - 1.0;
double size = MHelper.randRange(minSize, maxSize, random);
double length = posX * posX + posY * posY + posZ * posZ;
double distance = 2.0;
double delta = 1.0 / count;
if (length < 1.0 && length > 0.001) {
length = distance / Math.sqrt(length);
size *= distance;
distance -= delta;
posX *= length;
posY *= length;
posZ *= length;
double j = posX * 100.0;
double k = posY * 100.0;
double l = posZ * 100.0;
double m = Math.atan2(posX, posZ);
double n = Math.sin(m);
double o = Math.cos(m);
double p = Math.atan2(Math.sqrt(posX * posX + posZ * posZ), posY);
double q = Math.sin(p);
double r = Math.cos(p);
double s = random.nextDouble() * Math.PI * 2.0;
double t = Math.sin(s);
double u = Math.cos(s);
int pos = 0;
for (int v = 0; v < 4; ++v) {
double x = (double) ((v & 2) - 1) * size;
double y = (double) ((v + 1 & 2) - 1) * size;
double aa = x * u - y * t;
double ab = y * u + x * t;
double ad = aa * q + 0.0 * r;
double ae = 0.0 * q - aa * r;
double af = ae * n - ab * o;
double ah = ab * n + ae * o;
float texU = (pos >> 1) & 1;
float texV = ((pos + 1) >> 1) & 1;
pos ++;
buffer.vertex(j + af, k + ad, l + ah).texture(texU, texV).next();
}
}
}
}
private void makeCylinder(BufferBuilder buffer, int segments, double height, double radius) {
buffer.begin(7, VertexFormats.POSITION_TEXTURE);
for (int i = 0; i < segments; i ++) {
double a1 = (double) i * Math.PI * 2.0 / (double) segments;
double a2 = (double) (i + 1) * Math.PI * 2.0 / (double) segments;
double px1 = Math.sin(a1) * radius;
double pz1 = Math.cos(a1) * radius;
double px2 = Math.sin(a2) * radius;
double pz2 = Math.cos(a2) * radius;
float u0 = (float) i / (float) segments;
float u1 = (float) (i + 1) / (float) segments;
buffer.vertex(px1, -height, pz1).texture(u0, 0).next();
buffer.vertex(px1, height, pz1).texture(u0, 1).next();
buffer.vertex(px2, height, pz2).texture(u1, 1).next();
buffer.vertex(px2, -height, pz2).texture(u1, 0).next();
}
}
}