/*
* This file is part of the BleachHack distribution (https://github.com/BleachDrinker420/bleachhack-1.14/).
* Copyright (c) 2019 Bleach.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package bleach.hack.utils;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL14;
import net.minecraft.client.render.BufferBuilder;
import net.minecraft.client.render.Camera;
import net.minecraft.client.render.Tessellator;
import net.minecraft.client.render.VertexFormats;
import net.minecraft.client.render.WorldRenderer;
import net.minecraft.client.render.block.entity.BlockEntityRenderDispatcher;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.Box;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.Vec3d;
public class RenderUtils {
public static void drawFilledBox(BlockPos blockPos, float r, float g, float b, float a) {
drawFilledBox(new Box(
blockPos.getX(), blockPos.getY(), blockPos.getZ(),
blockPos.getX()+1, blockPos.getY()+1, blockPos.getZ()+1), r, g, b, a);
}
public static void drawFilledBox(Box box, float r, float g, float b, float a) {
gl11Setup();
// Fill
Tessellator tessellator = Tessellator.getInstance();
BufferBuilder buffer = tessellator.getBuffer();
buffer.begin(5, VertexFormats.POSITION_COLOR);
WorldRenderer.drawBox(buffer,
box.minX, box.minY, box.minZ,
box.maxX, box.maxY, box.maxZ, r, g, b, a/2f);
tessellator.draw();
// Outline
buffer.begin(3, VertexFormats.POSITION_COLOR);
buffer.vertex(box.minX, box.minY, box.minZ).color(r, b, b, a/2f).next();
buffer.vertex(box.minX, box.minY, box.maxZ).color(r, b, b, a/2f).next();
buffer.vertex(box.maxX, box.minY, box.maxZ).color(r, b, b, a/2f).next();
buffer.vertex(box.maxX, box.minY, box.minZ).color(r, b, b, a/2f).next();
buffer.vertex(box.minX, box.minY, box.minZ).color(r, b, b, a/2f).next();
buffer.vertex(box.minX, box.maxY, box.minZ).color(r, b, b, a/2f).next();
buffer.vertex(box.maxX, box.maxY, box.minZ).color(r, b, b, a/2f).next();
buffer.vertex(box.maxX, box.maxY, box.maxZ).color(r, b, b, a/2f).next();
buffer.vertex(box.minX, box.maxY, box.maxZ).color(r, b, b, a/2f).next();
buffer.vertex(box.minX, box.maxY, box.minZ).color(r, b, b, a/2f).next();
buffer.vertex(box.minX, box.minY, box.maxZ).color(r, b, b, 0f).next();
buffer.vertex(box.minX, box.maxY, box.maxZ).color(r, b, b, a/2f).next();
buffer.vertex(box.maxX, box.minY, box.maxZ).color(r, b, b, 0f).next();
buffer.vertex(box.maxX, box.maxY, box.maxZ).color(r, b, b, a/2f).next();
buffer.vertex(box.maxX, box.minY, box.minZ).color(r, b, b, 0f).next();
buffer.vertex(box.maxX, box.maxY, box.minZ).color(r, b, b, a/2f).next();
tessellator.draw();
gl11Cleanup();
}
public static void drawLine(double x1,double y1,double z1,double x2,double y2,double z2, float r, float g, float b, float t) {
gl11Setup();
GL11.glLineWidth(t);
Tessellator tessellator = Tessellator.getInstance();
BufferBuilder buffer = tessellator.getBuffer();
buffer.begin(3, VertexFormats.POSITION_COLOR);
buffer.vertex(x1, y1, z1).color(r, g, b, 0.0F).next();
buffer.vertex(x1, y1, z1).color(r, g, b, 1.0F).next();
buffer.vertex(x2, y2, z2).color(r, g, b, 1.0F).next();
tessellator.draw();
gl11Cleanup();
}
public static void offsetRender() {
Camera camera = BlockEntityRenderDispatcher.INSTANCE.camera;
Vec3d camPos = camera.getPos();
GL11.glRotated(MathHelper.wrapDegrees(camera.getPitch()), 1, 0, 0);
GL11.glRotated(MathHelper.wrapDegrees(camera.getYaw() + 180.0), 0, 1, 0);
GL11.glTranslated(-camPos.x, -camPos.y, -camPos.z);
}
public static void gl11Setup() {
GL11.glEnable(GL11.GL_BLEND);
GL14.glBlendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, GL11.GL_ONE, GL11.GL_ZERO);
GL11.glLineWidth(2.5F);
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_DEPTH_TEST);
GL11.glMatrixMode(5889);
GL11.glEnable(GL11.GL_LINE_SMOOTH);
GL11.glPushMatrix();
offsetRender();
}
public static void gl11Cleanup() {
GL11.glDisable(GL11.GL_LINE_SMOOTH);
GL11.glPopMatrix();
GL11.glMatrixMode(5888);
GL11.glEnable(GL11.GL_DEPTH_TEST);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_BLEND);
}
}
