293 lines
14 KiB
Java
293 lines
14 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.client.render;
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import dan200.computercraft.client.FrameInfo;
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import dan200.computercraft.client.gui.FixedWidthFontRenderer;
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import dan200.computercraft.core.terminal.Terminal;
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import dan200.computercraft.core.terminal.TextBuffer;
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import dan200.computercraft.shared.peripheral.monitor.ClientMonitor;
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import dan200.computercraft.shared.peripheral.monitor.TileMonitor;
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import dan200.computercraft.shared.util.Colour;
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import dan200.computercraft.shared.util.DirectionUtil;
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import dan200.computercraft.shared.util.Palette;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.renderer.BufferBuilder;
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import net.minecraft.client.renderer.GlStateManager;
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import net.minecraft.client.renderer.OpenGlHelper;
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import net.minecraft.client.renderer.Tessellator;
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import net.minecraft.client.renderer.tileentity.TileEntityRenderer;
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import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
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import net.minecraft.util.EnumFacing;
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import net.minecraft.util.math.BlockPos;
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import org.lwjgl.opengl.GL11;
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public class TileEntityMonitorRenderer extends TileEntityRenderer<TileMonitor>
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{
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@Override
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public void render( TileMonitor tileEntity, double posX, double posY, double posZ, float f, int i )
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{
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if( tileEntity != null )
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{
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renderMonitorAt( tileEntity, posX, posY, posZ, f, i );
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}
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}
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private static void renderMonitorAt( TileMonitor monitor, double posX, double posY, double posZ, float f, int i )
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{
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// Render from the origin monitor
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ClientMonitor originTerminal = monitor.getClientMonitor();
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if( originTerminal == null ) return;
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TileMonitor origin = originTerminal.getOrigin();
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BlockPos monitorPos = monitor.getPos();
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// Ensure each monitor terminal is rendered only once. We allow rendering a specific tile
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// multiple times in a single frame to ensure compatibility with shaders which may run a
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// pass multiple times.
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long renderFrame = FrameInfo.getRenderFrame();
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if( originTerminal.lastRenderFrame == renderFrame && !monitorPos.equals( originTerminal.lastRenderPos ) )
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{
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return;
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}
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originTerminal.lastRenderFrame = renderFrame;
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originTerminal.lastRenderPos = monitorPos;
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BlockPos originPos = origin.getPos();
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posX += originPos.getX() - monitorPos.getX();
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posY += originPos.getY() - monitorPos.getY();
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posZ += originPos.getZ() - monitorPos.getZ();
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// Determine orientation
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EnumFacing dir = origin.getDirection();
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EnumFacing front = origin.getFront();
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float yaw = dir.getHorizontalAngle();
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float pitch = DirectionUtil.toPitchAngle( front );
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GlStateManager.pushMatrix();
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try
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{
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// Setup initial transform
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GlStateManager.translated( posX + 0.5, posY + 0.5, posZ + 0.5 );
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GlStateManager.rotatef( -yaw, 0.0f, 1.0f, 0.0f );
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GlStateManager.rotatef( pitch, 1.0f, 0.0f, 0.0f );
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GlStateManager.translated(
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-0.5 + TileMonitor.RENDER_BORDER + TileMonitor.RENDER_MARGIN,
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origin.getHeight() - 0.5 - (TileMonitor.RENDER_BORDER + TileMonitor.RENDER_MARGIN) + 0,
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0.5
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);
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double xSize = origin.getWidth() - 2.0 * (TileMonitor.RENDER_MARGIN + TileMonitor.RENDER_BORDER);
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double ySize = origin.getHeight() - 2.0 * (TileMonitor.RENDER_MARGIN + TileMonitor.RENDER_BORDER);
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// Get renderers
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Minecraft mc = Minecraft.getInstance();
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Tessellator tessellator = Tessellator.getInstance();
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BufferBuilder renderer = tessellator.getBuffer();
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// Get terminal
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boolean redraw = originTerminal.pollTerminalChanged();
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// Draw the contents
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GlStateManager.depthMask( false );
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OpenGlHelper.glMultiTexCoord2f( OpenGlHelper.GL_TEXTURE1, 0xFFFF, 0xFFFF );
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GlStateManager.disableLighting();
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mc.gameRenderer.disableLightmap();
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try
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{
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Terminal terminal = originTerminal.getTerminal();
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if( terminal != null )
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{
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Palette palette = terminal.getPalette();
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// Allocate display lists
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if( originTerminal.renderDisplayLists == null )
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{
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originTerminal.createLists();
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redraw = true;
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}
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// Draw a terminal
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boolean greyscale = !originTerminal.isColour();
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int width = terminal.getWidth();
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int height = terminal.getHeight();
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int cursorX = terminal.getCursorX();
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int cursorY = terminal.getCursorY();
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FixedWidthFontRenderer fontRenderer = FixedWidthFontRenderer.instance();
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GlStateManager.pushMatrix();
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try
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{
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double xScale = xSize / (width * FixedWidthFontRenderer.FONT_WIDTH);
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double yScale = ySize / (height * FixedWidthFontRenderer.FONT_HEIGHT);
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GlStateManager.scaled( xScale, -yScale, 1.0 );
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// Draw background
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mc.getTextureManager().bindTexture( FixedWidthFontRenderer.BACKGROUND );
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if( redraw )
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{
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// Build background display list
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GlStateManager.newList( originTerminal.renderDisplayLists[0], GL11.GL_COMPILE );
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try
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{
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double marginXSize = TileMonitor.RENDER_MARGIN / xScale;
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double marginYSize = TileMonitor.RENDER_MARGIN / yScale;
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double marginSquash = marginYSize / FixedWidthFontRenderer.FONT_HEIGHT;
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// Top and bottom margins
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GlStateManager.pushMatrix();
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try
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{
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GlStateManager.scaled( 1.0, marginSquash, 1.0 );
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GlStateManager.translated( 0.0, -marginYSize / marginSquash, 0.0 );
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fontRenderer.drawStringBackgroundPart( 0, 0, terminal.getBackgroundColourLine( 0 ), marginXSize, marginXSize, greyscale, palette );
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GlStateManager.translated( 0.0, (marginYSize + height * FixedWidthFontRenderer.FONT_HEIGHT) / marginSquash, 0.0 );
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fontRenderer.drawStringBackgroundPart( 0, 0, terminal.getBackgroundColourLine( height - 1 ), marginXSize, marginXSize, greyscale, palette );
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}
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finally
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{
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GlStateManager.popMatrix();
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}
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// Backgrounds
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for( int y = 0; y < height; y++ )
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{
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fontRenderer.drawStringBackgroundPart(
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0, FixedWidthFontRenderer.FONT_HEIGHT * y,
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terminal.getBackgroundColourLine( y ),
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marginXSize, marginXSize,
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greyscale,
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palette
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);
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}
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}
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finally
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{
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GlStateManager.endList();
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}
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}
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GlStateManager.callList( originTerminal.renderDisplayLists[0] );
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GlStateManager.resetColor();
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// Draw text
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fontRenderer.bindFont();
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if( redraw )
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{
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// Build text display list
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GlStateManager.newList( originTerminal.renderDisplayLists[1], GL11.GL_COMPILE );
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try
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{
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// Lines
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for( int y = 0; y < height; y++ )
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{
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fontRenderer.drawStringTextPart(
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0, FixedWidthFontRenderer.FONT_HEIGHT * y,
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terminal.getLine( y ),
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terminal.getTextColourLine( y ),
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greyscale,
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palette
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);
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}
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}
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finally
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{
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GlStateManager.endList();
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}
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}
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GlStateManager.callList( originTerminal.renderDisplayLists[1] );
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GlStateManager.resetColor();
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// Draw cursor
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fontRenderer.bindFont();
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if( redraw )
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{
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// Build cursor display list
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GlStateManager.newList( originTerminal.renderDisplayLists[2], GL11.GL_COMPILE );
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try
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{
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// Cursor
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if( terminal.getCursorBlink() && cursorX >= 0 && cursorX < width && cursorY >= 0 && cursorY < height )
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{
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TextBuffer cursor = new TextBuffer( "_" );
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TextBuffer cursorColour = new TextBuffer( "0123456789abcdef".charAt( terminal.getTextColour() ), 1 );
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fontRenderer.drawString(
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cursor,
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FixedWidthFontRenderer.FONT_WIDTH * cursorX,
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FixedWidthFontRenderer.FONT_HEIGHT * cursorY,
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cursorColour, null,
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0, 0,
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greyscale,
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palette
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);
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}
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}
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finally
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{
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GlStateManager.endList();
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}
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}
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if( FrameInfo.getGlobalCursorBlink() )
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{
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GlStateManager.callList( originTerminal.renderDisplayLists[2] );
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GlStateManager.resetColor();
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}
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}
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finally
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{
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GlStateManager.popMatrix();
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}
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}
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else
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{
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// Draw a big black quad
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mc.getTextureManager().bindTexture( FixedWidthFontRenderer.BACKGROUND );
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final Colour colour = Colour.Black;
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final float r = colour.getR();
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final float g = colour.getG();
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final float b = colour.getB();
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renderer.begin( GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_TEX_COLOR );
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renderer.pos( -TileMonitor.RENDER_MARGIN, TileMonitor.RENDER_MARGIN, 0.0D ).tex( 0.0, 0.0 ).color( r, g, b, 1.0f ).endVertex();
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renderer.pos( -TileMonitor.RENDER_MARGIN, -ySize - TileMonitor.RENDER_MARGIN, 0.0 ).tex( 0.0, 1.0 ).color( r, g, b, 1.0f ).endVertex();
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renderer.pos( xSize + TileMonitor.RENDER_MARGIN, TileMonitor.RENDER_MARGIN, 0.0D ).tex( 1.0, 0.0 ).color( r, g, b, 1.0f ).endVertex();
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renderer.pos( xSize + TileMonitor.RENDER_MARGIN, -ySize - TileMonitor.RENDER_MARGIN, 0.0 ).tex( 1.0, 1.0 ).color( r, g, b, 1.0f ).endVertex();
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tessellator.draw();
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}
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}
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finally
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{
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GlStateManager.depthMask( true );
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mc.gameRenderer.enableLightmap();
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GlStateManager.enableLighting();
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}
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// Draw the depth blocker
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GlStateManager.colorMask( false, false, false, false );
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try
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{
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mc.getTextureManager().bindTexture( FixedWidthFontRenderer.BACKGROUND );
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renderer.begin( GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION );
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renderer.pos( -TileMonitor.RENDER_MARGIN, TileMonitor.RENDER_MARGIN, 0.0 ).endVertex();
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renderer.pos( -TileMonitor.RENDER_MARGIN, -ySize - TileMonitor.RENDER_MARGIN, 0.0 ).endVertex();
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renderer.pos( xSize + TileMonitor.RENDER_MARGIN, TileMonitor.RENDER_MARGIN, 0.0 ).endVertex();
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renderer.pos( xSize + TileMonitor.RENDER_MARGIN, -ySize - TileMonitor.RENDER_MARGIN, 0.0 ).endVertex();
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tessellator.draw();
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}
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finally
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{
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GlStateManager.colorMask( true, true, true, true );
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}
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}
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finally
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{
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GlStateManager.color4f( 1.0f, 1.0f, 1.0f, 1.0f );
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GlStateManager.popMatrix();
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}
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}
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}
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