    001    package net.minecraft.client.gui;
    002
    003    import cpw.mods.fml.client.GuiModList;
    004    import cpw.mods.fml.common.FMLCommonHandler;
    005    import cpw.mods.fml.common.Side;
    006    import cpw.mods.fml.common.asm.SideOnly;
    007    import java.awt.image.BufferedImage;
    008    import java.io.BufferedReader;
    009    import java.io.IOException;
    010    import java.io.InputStreamReader;
    011    import java.nio.charset.Charset;
    012    import java.util.ArrayList;
    013    import java.util.Calendar;
    014    import java.util.Date;
    015    import java.util.List;
    016    import java.util.Random;
    017    import net.minecraft.client.Minecraft;
    018    import net.minecraft.client.renderer.Tessellator;
    019    import net.minecraft.client.texturepacks.GuiTexturePacks;
    020    import net.minecraft.util.MathHelper;
    021    import net.minecraft.util.StringTranslate;
    022    import net.minecraft.world.demo.DemoWorldServer;
    023    import net.minecraft.world.storage.ISaveFormat;
    024    import net.minecraft.world.storage.WorldInfo;
    025    import org.lwjgl.opengl.GL11;
    026    import org.lwjgl.util.glu.GLU;
    027
    028    import com.google.common.base.Strings;
    029    import com.google.common.collect.Lists;
    030
    031    @SideOnly(Side.CLIENT)
    032    public class GuiMainMenu extends GuiScreen
    033    {
    034        /** The RNG used by the Main Menu Screen. */
    035        private static final Random rand = new Random();
    036
    037        /** Counts the number of screen updates. */
    038        private float updateCounter = 0.0F;
    039
    040        /** The splash message. */
    041        private String splashText = "missingno";
    042        private GuiButton buttonResetDemo;
    043
    044        /** Timer used to rotate the panorama, increases every tick. */
    045        private int panoramaTimer = 0;
    046
    047        /**
    048         * Texture allocated for the current viewport of the main menu's panorama background.
    049         */
    050        private int viewportTexture;
    051
    052        /** An array of all the paths to the panorama pictures. */
    053        private static final String[] titlePanoramaPaths = new String[] {"/title/bg/panorama0.png", "/title/bg/panorama1.png", "/title/bg/panorama2.png", "/title/bg/panorama3.png", "/title/bg/panorama4.png", "/title/bg/panorama5.png"};
    054
    055        public GuiMainMenu()
    056        {
    057            BufferedReader var1 = null;
    058
    059            try
    060            {
    061                ArrayList var2 = new ArrayList();
    062                var1 = new BufferedReader(new InputStreamReader(GuiMainMenu.class.getResourceAsStream("/title/splashes.txt"), Charset.forName("UTF-8")));
    063                String var3;
    064
    065                while ((var3 = var1.readLine()) != null)
    066                {
    067                    var3 = var3.trim();
    068
    069                    if (var3.length() > 0)
    070                    {
    071                        var2.add(var3);
    072                    }
    073                }
    074
    075                do
    076                {
    077                    this.splashText = (String)var2.get(rand.nextInt(var2.size()));
    078                }
    079                while (this.splashText.hashCode() == 125780783);
    080            }
    081            catch (IOException var12)
    082            {
    083                ;
    084            }
    085            finally
    086            {
    087                if (var1 != null)
    088                {
    089                    try
    090                    {
    091                        var1.close();
    092                    }
    093                    catch (IOException var11)
    094                    {
    095                        ;
    096                    }
    097                }
    098            }
    099
    100            this.updateCounter = rand.nextFloat();
    101        }
    102
    103        /**
    104         * Called from the main game loop to update the screen.
    105         */
    106        public void updateScreen()
    107        {
    108            ++this.panoramaTimer;
    109        }
    110
    111        /**
    112         * Returns true if this GUI should pause the game when it is displayed in single-player
    113         */
    114        public boolean doesGuiPauseGame()
    115        {
    116            return false;
    117        }
    118
    119        /**
    120         * Fired when a key is typed. This is the equivalent of KeyListener.keyTyped(KeyEvent e).
    121         */
    122        protected void keyTyped(char par1, int par2) {}
    123
    124        /**
    125         * Adds the buttons (and other controls) to the screen in question.
    126         */
    127        public void initGui()
    128        {
    129            this.viewportTexture = this.mc.renderEngine.allocateAndSetupTexture(new BufferedImage(256, 256, 2));
    130            Calendar var1 = Calendar.getInstance();
    131            var1.setTime(new Date());
    132
    133            if (var1.get(2) + 1 == 11 && var1.get(5) == 9)
    134            {
    135                this.splashText = "Happy birthday, ez!";
    136            }
    137            else if (var1.get(2) + 1 == 6 && var1.get(5) == 1)
    138            {
    139                this.splashText = "Happy birthday, Notch!";
    140            }
    141            else if (var1.get(2) + 1 == 12 && var1.get(5) == 24)
    142            {
    143                this.splashText = "Merry X-mas!";
    144            }
    145            else if (var1.get(2) + 1 == 1 && var1.get(5) == 1)
    146            {
    147                this.splashText = "Happy new year!";
    148            }
    149            else if (var1.get(2) + 1 == 10 && var1.get(5) == 31)
    150            {
    151                this.splashText = "OOoooOOOoooo! Spooky!";
    152            }
    153
    154            StringTranslate var2 = StringTranslate.getInstance();
    155            int var4 = this.height / 4 + 48;
    156
    157            if (this.mc.isDemo())
    158            {
    159                this.addDemoButtons(var4, 24, var2);
    160            }
    161            else
    162            {
    163                this.addSingleplayerMultiplayerButtons(var4, 24, var2);
    164            }
    165
    166            this.controlList.add(new GuiButton(3, this.width / 2 - 100, var4 + 48, 98, 20, var2.translateKey("menu.mods")));
    167            this.controlList.add(new GuiButton(6, this.width / 2 + 2, var4 + 48, 98, 20, "Mods"));
    168
    169            if (this.mc.hideQuitButton)
    170            {
    171                this.controlList.add(new GuiButton(0, this.width / 2 - 100, var4 + 72, var2.translateKey("menu.options")));
    172            }
    173            else
    174            {
    175                this.controlList.add(new GuiButton(0, this.width / 2 - 100, var4 + 72 + 12, 98, 20, var2.translateKey("menu.options")));
    176                this.controlList.add(new GuiButton(4, this.width / 2 + 2, var4 + 72 + 12, 98, 20, var2.translateKey("menu.quit")));
    177            }
    178
    179            this.controlList.add(new GuiButtonLanguage(5, this.width / 2 - 124, var4 + 72 + 12));
    180        }
    181
    182        /**
    183         * Adds Singleplayer and Multiplayer buttons on Main Menu for players who have bought the game.
    184         */
    185        private void addSingleplayerMultiplayerButtons(int par1, int par2, StringTranslate par3StringTranslate)
    186        {
    187            this.controlList.add(new GuiButton(1, this.width / 2 - 100, par1, par3StringTranslate.translateKey("menu.singleplayer")));
    188            this.controlList.add(new GuiButton(2, this.width / 2 - 100, par1 + par2 * 1, par3StringTranslate.translateKey("menu.multiplayer")));
    189        }
    190
    191        /**
    192         * Adds Demo buttons on Main Menu for players who are playing Demo.
    193         */
    194        private void addDemoButtons(int par1, int par2, StringTranslate par3StringTranslate)
    195        {
    196            this.controlList.add(new GuiButton(11, this.width / 2 - 100, par1, par3StringTranslate.translateKey("menu.playdemo")));
    197            this.controlList.add(this.buttonResetDemo = new GuiButton(12, this.width / 2 - 100, par1 + par2 * 1, par3StringTranslate.translateKey("menu.resetdemo")));
    198            ISaveFormat var4 = this.mc.getSaveLoader();
    199            WorldInfo var5 = var4.getWorldInfo("Demo_World");
    200
    201            if (var5 == null)
    202            {
    203                this.buttonResetDemo.enabled = false;
    204            }
    205        }
    206
    207        /**
    208         * Fired when a control is clicked. This is the equivalent of ActionListener.actionPerformed(ActionEvent e).
    209         */
    210        protected void actionPerformed(GuiButton par1GuiButton)
    211        {
    212            if (par1GuiButton.id == 0)
    213            {
    214                this.mc.displayGuiScreen(new GuiOptions(this, this.mc.gameSettings));
    215            }
    216
    217            if (par1GuiButton.id == 5)
    218            {
    219                this.mc.displayGuiScreen(new GuiLanguage(this, this.mc.gameSettings));
    220            }
    221
    222            if (par1GuiButton.id == 1)
    223            {
    224                this.mc.displayGuiScreen(new GuiSelectWorld(this));
    225            }
    226
    227            if (par1GuiButton.id == 2)
    228            {
    229                this.mc.displayGuiScreen(new GuiMultiplayer(this));
    230            }
    231
    232            if (par1GuiButton.id == 3)
    233            {
    234                this.mc.displayGuiScreen(new GuiTexturePacks(this));
    235            }
    236
    237            if (par1GuiButton.id == 4)
    238            {
    239                this.mc.shutdown();
    240            }
    241
    242            if (par1GuiButton.id == 6)
    243            {
    244                this.mc.displayGuiScreen(new GuiModList(this));
    245            }
    246
    247            if (par1GuiButton.id == 11)
    248            {
    249                this.mc.launchIntegratedServer("Demo_World", "Demo_World", DemoWorldServer.demoWorldSettings);
    250            }
    251
    252            if (par1GuiButton.id == 12)
    253            {
    254                ISaveFormat var2 = this.mc.getSaveLoader();
    255                WorldInfo var3 = var2.getWorldInfo("Demo_World");
    256
    257                if (var3 != null)
    258                {
    259                    GuiYesNo var4 = GuiSelectWorld.getDeleteWorldScreen(this, var3.getWorldName(), 12);
    260                    this.mc.displayGuiScreen(var4);
    261                }
    262            }
    263        }
    264
    265        public void confirmClicked(boolean par1, int par2)
    266        {
    267            if (par1 && par2 == 12)
    268            {
    269                ISaveFormat var3 = this.mc.getSaveLoader();
    270                var3.flushCache();
    271                var3.deleteWorldDirectory("Demo_World");
    272                this.mc.displayGuiScreen(this);
    273            }
    274        }
    275
    276        /**
    277         * Draws the main menu panorama
    278         */
    279        private void drawPanorama(int par1, int par2, float par3)
    280        {
    281            Tessellator var4 = Tessellator.instance;
    282            GL11.glMatrixMode(GL11.GL_PROJECTION);
    283            GL11.glPushMatrix();
    284            GL11.glLoadIdentity();
    285            GLU.gluPerspective(120.0F, 1.0F, 0.05F, 10.0F);
    286            GL11.glMatrixMode(GL11.GL_MODELVIEW);
    287            GL11.glPushMatrix();
    288            GL11.glLoadIdentity();
    289            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    290            GL11.glRotatef(180.0F, 1.0F, 0.0F, 0.0F);
    291            GL11.glEnable(GL11.GL_BLEND);
    292            GL11.glDisable(GL11.GL_ALPHA_TEST);
    293            GL11.glDisable(GL11.GL_CULL_FACE);
    294            GL11.glDepthMask(false);
    295            GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    296            byte var5 = 8;
    297
    298            for (int var6 = 0; var6 < var5 * var5; ++var6)
    299            {
    300                GL11.glPushMatrix();
    301                float var7 = ((float)(var6 % var5) / (float)var5 - 0.5F) / 64.0F;
    302                float var8 = ((float)(var6 / var5) / (float)var5 - 0.5F) / 64.0F;
    303                float var9 = 0.0F;
    304                GL11.glTranslatef(var7, var8, var9);
    305                GL11.glRotatef(MathHelper.sin(((float)this.panoramaTimer + par3) / 400.0F) * 25.0F + 20.0F, 1.0F, 0.0F, 0.0F);
    306                GL11.glRotatef(-((float)this.panoramaTimer + par3) * 0.1F, 0.0F, 1.0F, 0.0F);
    307
    308                for (int var10 = 0; var10 < 6; ++var10)
    309                {
    310                    GL11.glPushMatrix();
    311
    312                    if (var10 == 1)
    313                    {
    314                        GL11.glRotatef(90.0F, 0.0F, 1.0F, 0.0F);
    315                    }
    316
    317                    if (var10 == 2)
    318                    {
    319                        GL11.glRotatef(180.0F, 0.0F, 1.0F, 0.0F);
    320                    }
    321
    322                    if (var10 == 3)
    323                    {
    324                        GL11.glRotatef(-90.0F, 0.0F, 1.0F, 0.0F);
    325                    }
    326
    327                    if (var10 == 4)
    328                    {
    329                        GL11.glRotatef(90.0F, 1.0F, 0.0F, 0.0F);
    330                    }
    331
    332                    if (var10 == 5)
    333                    {
    334                        GL11.glRotatef(-90.0F, 1.0F, 0.0F, 0.0F);
    335                    }
    336
    337                    GL11.glBindTexture(GL11.GL_TEXTURE_2D, this.mc.renderEngine.getTexture(titlePanoramaPaths[var10]));
    338                    var4.startDrawingQuads();
    339                    var4.setColorRGBA_I(16777215, 255 / (var6 + 1));
    340                    float var11 = 0.0F;
    341                    var4.addVertexWithUV(-1.0D, -1.0D, 1.0D, (double)(0.0F + var11), (double)(0.0F + var11));
    342                    var4.addVertexWithUV(1.0D, -1.0D, 1.0D, (double)(1.0F - var11), (double)(0.0F + var11));
    343                    var4.addVertexWithUV(1.0D, 1.0D, 1.0D, (double)(1.0F - var11), (double)(1.0F - var11));
    344                    var4.addVertexWithUV(-1.0D, 1.0D, 1.0D, (double)(0.0F + var11), (double)(1.0F - var11));
    345                    var4.draw();
    346                    GL11.glPopMatrix();
    347                }
    348
    349                GL11.glPopMatrix();
    350                GL11.glColorMask(true, true, true, false);
    351            }
    352
    353            var4.setTranslation(0.0D, 0.0D, 0.0D);
    354            GL11.glColorMask(true, true, true, true);
    355            GL11.glMatrixMode(GL11.GL_PROJECTION);
    356            GL11.glPopMatrix();
    357            GL11.glMatrixMode(GL11.GL_MODELVIEW);
    358            GL11.glPopMatrix();
    359            GL11.glDepthMask(true);
    360            GL11.glEnable(GL11.GL_CULL_FACE);
    361            GL11.glEnable(GL11.GL_ALPHA_TEST);
    362            GL11.glEnable(GL11.GL_DEPTH_TEST);
    363        }
    364
    365        /**
    366         * Rotate and blurs the skybox view in the main menu
    367         */
    368        private void rotateAndBlurSkybox(float par1)
    369        {
    370            GL11.glBindTexture(GL11.GL_TEXTURE_2D, this.viewportTexture);
    371            GL11.glCopyTexSubImage2D(GL11.GL_TEXTURE_2D, 0, 0, 0, 0, 0, 256, 256);
    372            GL11.glEnable(GL11.GL_BLEND);
    373            GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    374            GL11.glColorMask(true, true, true, false);
    375            Tessellator var2 = Tessellator.instance;
    376            var2.startDrawingQuads();
    377            byte var3 = 3;
    378
    379            for (int var4 = 0; var4 < var3; ++var4)
    380            {
    381                var2.setColorRGBA_F(1.0F, 1.0F, 1.0F, 1.0F / (float)(var4 + 1));
    382                int var5 = this.width;
    383                int var6 = this.height;
    384                float var7 = (float)(var4 - var3 / 2) / 256.0F;
    385                var2.addVertexWithUV((double)var5, (double)var6, (double)this.zLevel, (double)(0.0F + var7), 0.0D);
    386                var2.addVertexWithUV((double)var5, 0.0D, (double)this.zLevel, (double)(1.0F + var7), 0.0D);
    387                var2.addVertexWithUV(0.0D, 0.0D, (double)this.zLevel, (double)(1.0F + var7), 1.0D);
    388                var2.addVertexWithUV(0.0D, (double)var6, (double)this.zLevel, (double)(0.0F + var7), 1.0D);
    389            }
    390
    391            var2.draw();
    392            GL11.glColorMask(true, true, true, true);
    393        }
    394
    395        /**
    396         * Renders the skybox in the main menu
    397         */
    398        private void renderSkybox(int par1, int par2, float par3)
    399        {
    400            GL11.glViewport(0, 0, 256, 256);
    401            this.drawPanorama(par1, par2, par3);
    402            GL11.glDisable(GL11.GL_TEXTURE_2D);
    403            GL11.glEnable(GL11.GL_TEXTURE_2D);
    404            this.rotateAndBlurSkybox(par3);
    405            this.rotateAndBlurSkybox(par3);
    406            this.rotateAndBlurSkybox(par3);
    407            this.rotateAndBlurSkybox(par3);
    408            this.rotateAndBlurSkybox(par3);
    409            this.rotateAndBlurSkybox(par3);
    410            this.rotateAndBlurSkybox(par3);
    411            this.rotateAndBlurSkybox(par3);
    412            GL11.glViewport(0, 0, this.mc.displayWidth, this.mc.displayHeight);
    413            Tessellator var4 = Tessellator.instance;
    414            var4.startDrawingQuads();
    415            float var5 = this.width > this.height ? 120.0F / (float)this.width : 120.0F / (float)this.height;
    416            float var6 = (float)this.height * var5 / 256.0F;
    417            float var7 = (float)this.width * var5 / 256.0F;
    418            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
    419            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
    420            var4.setColorRGBA_F(1.0F, 1.0F, 1.0F, 1.0F);
    421            int var8 = this.width;
    422            int var9 = this.height;
    423            var4.addVertexWithUV(0.0D, (double)var9, (double)this.zLevel, (double)(0.5F - var6), (double)(0.5F + var7));
    424            var4.addVertexWithUV((double)var8, (double)var9, (double)this.zLevel, (double)(0.5F - var6), (double)(0.5F - var7));
    425            var4.addVertexWithUV((double)var8, 0.0D, (double)this.zLevel, (double)(0.5F + var6), (double)(0.5F - var7));
    426            var4.addVertexWithUV(0.0D, 0.0D, (double)this.zLevel, (double)(0.5F + var6), (double)(0.5F + var7));
    427            var4.draw();
    428        }
    429
    430        /**
    431         * Draws the screen and all the components in it.
    432         */
    433        public void drawScreen(int par1, int par2, float par3)
    434        {
    435            this.renderSkybox(par1, par2, par3);
    436            Tessellator var4 = Tessellator.instance;
    437            short var5 = 274;
    438            int var6 = this.width / 2 - var5 / 2;
    439            byte var7 = 30;
    440            this.drawGradientRect(0, 0, this.width, this.height, -2130706433, 16777215);
    441            this.drawGradientRect(0, 0, this.width, this.height, 0, Integer.MIN_VALUE);
    442            GL11.glBindTexture(GL11.GL_TEXTURE_2D, this.mc.renderEngine.getTexture("/title/mclogo.png"));
    443            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    444
    445            if ((double)this.updateCounter < 1.0E-4D)
    446            {
    447                this.drawTexturedModalRect(var6 + 0, var7 + 0, 0, 0, 99, 44);
    448                this.drawTexturedModalRect(var6 + 99, var7 + 0, 129, 0, 27, 44);
    449                this.drawTexturedModalRect(var6 + 99 + 26, var7 + 0, 126, 0, 3, 44);
    450                this.drawTexturedModalRect(var6 + 99 + 26 + 3, var7 + 0, 99, 0, 26, 44);
    451                this.drawTexturedModalRect(var6 + 155, var7 + 0, 0, 45, 155, 44);
    452            }
    453            else
    454            {
    455                this.drawTexturedModalRect(var6 + 0, var7 + 0, 0, 0, 155, 44);
    456                this.drawTexturedModalRect(var6 + 155, var7 + 0, 0, 45, 155, 44);
    457            }
    458
    459            var4.setColorOpaque_I(16777215);
    460            GL11.glPushMatrix();
    461            GL11.glTranslatef((float)(this.width / 2 + 90), 70.0F, 0.0F);
    462            GL11.glRotatef(-20.0F, 0.0F, 0.0F, 1.0F);
    463            float var8 = 1.8F - MathHelper.abs(MathHelper.sin((float)(Minecraft.getSystemTime() % 1000L) / 1000.0F * (float)Math.PI * 2.0F) * 0.1F);
    464            var8 = var8 * 100.0F / (float)(this.fontRenderer.getStringWidth(this.splashText) + 32);
    465            GL11.glScalef(var8, var8, var8);
    466            this.drawCenteredString(this.fontRenderer, this.splashText, 0, -8, 16776960);
    467            GL11.glPopMatrix();
    468            String var9 = "Minecraft 1.4.5";
    469
    470            if (this.mc.isDemo())
    471            {
    472                var9 = var9 + " Demo";
    473            }
    474
    475            List<String> brandings = Lists.reverse(FMLCommonHandler.instance().getBrandings());
    476            for (int i = 0; i < brandings.size(); i++)
    477            {
    478                String brd = brandings.get(i);
    479                if (!Strings.isNullOrEmpty(brd))
    480                {
    481                    this.drawString(this.fontRenderer, brd, 2, this.height - ( 10 + i * (this.fontRenderer.FONT_HEIGHT + 1)), 16777215);
    482                }
    483            }
    484
    485            String var10 = "Copyright Mojang AB. Do not distribute!";
    486            this.drawString(this.fontRenderer, var10, this.width - this.fontRenderer.getStringWidth(var10) - 2, this.height - 10, 16777215);
    487            super.drawScreen(par1, par2, par3);
    488        }
    489    }