Java tutorial
package com.enderville.mod.client.gui.mainmenu; import java.awt.Color; import java.io.IOException; import java.net.URI; import java.net.URISyntaxException; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.GuiButton; import net.minecraft.client.gui.GuiButtonLanguage; import net.minecraft.client.gui.GuiLanguage; import net.minecraft.client.gui.GuiMultiplayer; import net.minecraft.client.gui.GuiOptions; import net.minecraft.client.gui.GuiScreen; import net.minecraft.client.gui.GuiSelectWorld; import net.minecraft.client.multiplayer.GuiConnecting; import net.minecraft.client.multiplayer.ServerData; import net.minecraft.client.renderer.Tessellator; import net.minecraft.client.renderer.texture.DynamicTexture; import net.minecraft.util.EnumChatFormatting; import net.minecraft.util.MathHelper; import net.minecraft.util.ResourceLocation; import org.lwjgl.opengl.GL11; import org.lwjgl.util.glu.Project; import com.enderville.mod.common.lib.MainMenuInfo; /** * MenuBaseEnderVille.java * * EnderVille * * @author DylanGore (http://github.com/DylanGore) * @license LGPL v3 (https://github.com/EnderVille/EnderVilleMod/blob/master/LICENSE) * */ public class MenuBaseEnderVille extends GuiScreen { /** Define Buttons **/ GuiButton sspButton = null; GuiButton smpButton = null; GuiButton serverConnectButton = null; GuiButton enderDonateButton = null; GuiButton webLinksButton = null; GuiButton optionsButton = null; GuiButton quitButton = null; GuiButton langButton = null; public void updateScreen() { ++this.panoramaTimer; } private float updateCounter = 0.0F; private String splashText = "\u00a75" + MainMenuInfo.splashText; private int panoramaTimer = 0; private DynamicTexture viewportTexture; private String field_92025_p; private static final ResourceLocation minecraftTitleTextures = new ResourceLocation( "textures/gui/title/minecraft.png"); private static final ResourceLocation[] titlePanoramaPaths = { new ResourceLocation("textures/gui/title/background/panorama_0.png"), new ResourceLocation("textures/gui/title/background/panorama_1.png"), new ResourceLocation("textures/gui/title/background/panorama_2.png"), new ResourceLocation("textures/gui/title/background/panorama_3.png"), new ResourceLocation("textures/gui/title/background/panorama_4.png"), new ResourceLocation("textures/gui/title/background/panorama_5.png") }; private int field_92022_t; private int field_92021_u; private int field_92020_v; private int field_92019_w; private ResourceLocation viewportTextureLocation; public ServerData serverData = new ServerData(MainMenuInfo.serverName, MainMenuInfo.serverIP); public String getVersion() { return "EnderPack: " + MainMenuInfo.modpackVersion; } public MenuBaseEnderVille() { this.field_92025_p = "" + EnumChatFormatting.RESET + MainMenuInfo.noticeText; } private void connectToServer(ServerData par1ServerData) { this.mc.displayGuiScreen(new GuiConnecting(this, this.mc, par1ServerData)); } @SuppressWarnings("unchecked") public void initGui() { super.initGui(); this.viewportTexture = new DynamicTexture(256, 256); this.viewportTextureLocation = this.mc.renderEngine.getDynamicTextureLocation("mc_background", this.viewportTexture); /** Add Buttons **/ sspButton = new GuiButton(0, this.width / 2 - 100, this.height / 4 + 24, "Singleplayer"); sspButton.width = 98; this.buttonList.add(sspButton); smpButton = new GuiButton(1, this.width / 2 - 100, this.height / 4 + 24, "Multiplayer"); smpButton.width = 98; smpButton.xPosition = this.width / 2 + 2; this.buttonList.add(smpButton); serverConnectButton = new GuiButton(2, this.width / 2 - 100, this.height / 4 + 48, MainMenuInfo.serverButtonText); this.buttonList.add(serverConnectButton); enderDonateButton = new GuiButton(3, this.width / 2 - 100, this.height / 4 + 72, "Donate"); enderDonateButton.width = 98; enderDonateButton.xPosition = this.width / 2 + 2; this.buttonList.add(enderDonateButton); webLinksButton = new GuiButton(4, this.width / 2 - 100, this.height / 4 + 72, "Links"); webLinksButton.width = 98; this.buttonList.add(webLinksButton); optionsButton = new GuiButton(5, this.width / 2 - 100, this.height / 4 + 96, "Options"); optionsButton.width = 98; this.buttonList.add(optionsButton); quitButton = new GuiButton(6, this.width / 2 - 100, this.height / 4 + 96, "Quit"); quitButton.width = 98; quitButton.xPosition = this.width / 2 + 2; this.buttonList.add(quitButton); langButton = new GuiButtonLanguage(7, this.width / 2 - 125, this.height / 4 + 96); this.buttonList.add(langButton); } protected void actionPerformed(GuiButton par1GuiButton) { if (par1GuiButton.id == 0) { this.mc.displayGuiScreen(new GuiSelectWorld(this)); } if (par1GuiButton.id == 1) { this.mc.displayGuiScreen(new GuiMultiplayer(this)); } if (par1GuiButton.id == 2) { this.connectToServer(serverData); } if (par1GuiButton.id == 3) { try { java.awt.Desktop.getDesktop().browse(new URI("http://enderville.com/account/upgrades")); } catch (IOException e) { e.printStackTrace(); } catch (URISyntaxException e) { e.printStackTrace(); } } if (par1GuiButton.id == 4) { this.mc.displayGuiScreen(new GuiLinks(this)); } if (par1GuiButton.id == 5) { this.mc.displayGuiScreen(new GuiOptions(this, this.mc.gameSettings)); } if (par1GuiButton.id == 6) { this.mc.shutdown(); } if (par1GuiButton.id == 7) { this.mc.displayGuiScreen(new GuiLanguage(this, this.mc.gameSettings, this.mc.getLanguageManager())); } } private void drawPanorama(int par1, int par2, float par3) { Tessellator tessellator = Tessellator.instance; GL11.glMatrixMode(GL11.GL_PROJECTION); GL11.glPushMatrix(); GL11.glLoadIdentity(); Project.gluPerspective(120.0F, 1.0F, 0.05F, 10.0F); GL11.glMatrixMode(GL11.GL_MODELVIEW); GL11.glPushMatrix(); GL11.glLoadIdentity(); GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); GL11.glRotatef(180.0F, 1.0F, 0.0F, 0.0F); GL11.glEnable(GL11.GL_BLEND); GL11.glDisable(GL11.GL_ALPHA_TEST); GL11.glDisable(GL11.GL_CULL_FACE); GL11.glDepthMask(false); GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); byte b0 = 8; for (int k = 0; k < b0 * b0; ++k) { GL11.glPushMatrix(); float f1 = ((float) (k % b0) / (float) b0 - 0.5F) / 64.0F; float f2 = ((float) (k / b0) / (float) b0 - 0.5F) / 64.0F; float f3 = 0.0F; GL11.glTranslatef(f1, f2, f3); GL11.glRotatef(MathHelper.sin(((float) this.panoramaTimer + par3) / 400.0F) * 25.0F + 20.0F, 1.0F, 0.0F, 0.0F); GL11.glRotatef(-((float) this.panoramaTimer + par3) * 0.1F, 0.0F, 1.0F, 0.0F); for (int l = 0; l < 6; ++l) { GL11.glPushMatrix(); if (l == 1) { GL11.glRotatef(90.0F, 0.0F, 1.0F, 0.0F); } if (l == 2) { GL11.glRotatef(180.0F, 0.0F, 1.0F, 0.0F); } if (l == 3) { GL11.glRotatef(-90.0F, 0.0F, 1.0F, 0.0F); } if (l == 4) { GL11.glRotatef(90.0F, 1.0F, 0.0F, 0.0F); } if (l == 5) { GL11.glRotatef(-90.0F, 1.0F, 0.0F, 0.0F); } this.mc.getTextureManager().bindTexture(titlePanoramaPaths[l]); tessellator.startDrawingQuads(); tessellator.setColorRGBA_I(16777215, 255 / (k + 1)); float f4 = 0.0F; tessellator.addVertexWithUV(-1.0D, -1.0D, 1.0D, (double) (0.0F + f4), (double) (0.0F + f4)); tessellator.addVertexWithUV(1.0D, -1.0D, 1.0D, (double) (1.0F - f4), (double) (0.0F + f4)); tessellator.addVertexWithUV(1.0D, 1.0D, 1.0D, (double) (1.0F - f4), (double) (1.0F - f4)); tessellator.addVertexWithUV(-1.0D, 1.0D, 1.0D, (double) (0.0F + f4), (double) (1.0F - f4)); tessellator.draw(); GL11.glPopMatrix(); } GL11.glPopMatrix(); GL11.glColorMask(true, true, true, false); } tessellator.setTranslation(0.0D, 0.0D, 0.0D); GL11.glColorMask(true, true, true, true); GL11.glMatrixMode(GL11.GL_PROJECTION); GL11.glPopMatrix(); GL11.glMatrixMode(GL11.GL_MODELVIEW); GL11.glPopMatrix(); GL11.glDepthMask(true); GL11.glEnable(GL11.GL_CULL_FACE); GL11.glEnable(GL11.GL_ALPHA_TEST); GL11.glEnable(GL11.GL_DEPTH_TEST); } /** * Rotate and blurs the skybox view in the main menu */ private void rotateAndBlurSkybox(float par1) { this.mc.getTextureManager().bindTexture(this.viewportTextureLocation); GL11.glCopyTexSubImage2D(GL11.GL_TEXTURE_2D, 0, 0, 0, 0, 0, 256, 256); GL11.glEnable(GL11.GL_BLEND); GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); GL11.glColorMask(true, true, true, false); Tessellator tessellator = Tessellator.instance; tessellator.startDrawingQuads(); byte b0 = 3; for (int i = 0; i < b0; ++i) { // tessellator.setColorRGBA_F(1.0F, 1.0F, 1.0F, 1.0F / (float)(i + 1)); int j = this.width; int k = this.height; float f1 = (float) (i - b0 / 2) / 256.0F; tessellator.addVertexWithUV((double) j, (double) k, (double) this.zLevel, (double) (0.0F + f1), 0.0D); tessellator.addVertexWithUV((double) j, 0.0D, (double) this.zLevel, (double) (1.0F + f1), 0.0D); tessellator.addVertexWithUV(0.0D, 0.0D, (double) this.zLevel, (double) (1.0F + f1), 1.0D); tessellator.addVertexWithUV(0.0D, (double) k, (double) this.zLevel, (double) (0.0F + f1), 1.0D); } tessellator.draw(); GL11.glColorMask(true, true, true, true); } /** * Renders the skybox in the main menu */ private void renderSkybox(int par1, int par2, float par3) { GL11.glViewport(0, 0, 256, 256); this.drawPanorama(par1, par2, par3); GL11.glDisable(GL11.GL_TEXTURE_2D); GL11.glEnable(GL11.GL_TEXTURE_2D); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); this.rotateAndBlurSkybox(par3); GL11.glViewport(0, 0, this.mc.displayWidth, this.mc.displayHeight); Tessellator tessellator = Tessellator.instance; tessellator.startDrawingQuads(); float f1 = this.width > this.height ? 120.0F / (float) this.width : 120.0F / (float) this.height; float f2 = (float) this.height * f1 / 256.0F; float f3 = (float) this.width * f1 / 256.0F; GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR); // tessellator.setColorRGBA_F(1.0F, 1.0F, 1.0F, 1.0F); int k = this.width; int l = this.height; tessellator.addVertexWithUV(0.0D, (double) l, (double) this.zLevel, (double) (0.5F - f2), (double) (0.5F + f3)); tessellator.addVertexWithUV((double) k, (double) l, (double) this.zLevel, (double) (0.5F - f2), (double) (0.5F - f3)); tessellator.addVertexWithUV((double) k, 0.0D, (double) this.zLevel, (double) (0.5F + f2), (double) (0.5F - f3)); tessellator.addVertexWithUV(0.0D, 0.0D, (double) this.zLevel, (double) (0.5F + f2), (double) (0.5F + f3)); tessellator.draw(); } /** * Draws the screen and all the components in it. */ public void drawScreen(int par1, int par2, float par3) { this.renderSkybox(par1, par2, par3); Tessellator tessellator = Tessellator.instance; short short1 = 274; int k = this.width / 2 - short1 / 2; byte b0 = 30; this.drawGradientRect(0, 0, this.width, this.height, -2130706433, 16777215); this.drawGradientRect(0, 0, this.width, this.height, 0, Integer.MIN_VALUE); this.mc.getTextureManager().bindTexture(minecraftTitleTextures); GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); if ((double) this.updateCounter < 1.0E-4D) { this.drawTexturedModalRect(k + 0, b0 + 0, 0, 0, 99, 44); this.drawTexturedModalRect(k + 99, b0 + 0, 129, 0, 27, 44); this.drawTexturedModalRect(k + 99 + 26, b0 + 0, 126, 0, 3, 44); this.drawTexturedModalRect(k + 99 + 26 + 3, b0 + 0, 99, 0, 26, 44); this.drawTexturedModalRect(k + 155, b0 + 0, 0, 45, 155, 44); } else { this.drawTexturedModalRect(k + 0, b0 + 0, 0, 0, 155, 44); this.drawTexturedModalRect(k + 155, b0 + 0, 0, 45, 155, 44); } tessellator.setColorOpaque_I(16777215); GL11.glPushMatrix(); GL11.glTranslatef((float) (this.width / 2 + 90), 70.0F, 0.0F); GL11.glRotatef(-20.0F, 0.0F, 0.0F, 1.0F); float f1 = 1.8F - MathHelper .abs(MathHelper.sin((float) (Minecraft.getSystemTime() % 1000L) / 1000.0F * (float) Math.PI * 2.0F) * 0.1F); f1 = f1 * 100.0F / (float) (this.fontRenderer.getStringWidth(this.splashText) + 32); GL11.glScalef(f1, f1, f1); this.drawCenteredString(this.fontRenderer, this.splashText, 0, -8, 0x8A0868); GL11.glPopMatrix(); String s = "Minecraft 1.6.4"; this.drawString(this.fontRenderer, s, 2, this.height - (10 + 0 * (this.fontRenderer.FONT_HEIGHT + 1)), Color.YELLOW.getRGB()); if (this.mc.isDemo()) { s = s + " Demo"; } String s1 = this.getVersion(); drawString(this.fontRenderer, s1, this.width - this.fontRenderer.getStringWidth(s1) - 2, this.height - 10, 0x8A0868); if ((this.field_92025_p != null) && (this.field_92025_p.length() > 0)) { drawRect(this.field_92022_t - 2, this.field_92021_u - 2, this.field_92020_v + 2, this.field_92019_w - 1, 1428160512); drawString(this.fontRenderer, this.field_92025_p, this.field_92022_t, this.field_92021_u, 16777215); } super.drawScreen(par1, par2, par3); } }