    001package net.minecraft.client.gui;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import net.minecraft.client.Minecraft;
    006import net.minecraft.client.renderer.Tessellator;
    007import net.minecraft.util.IProgressUpdate;
    008import net.minecraft.util.MinecraftError;
    009import org.lwjgl.opengl.Display;
    010import org.lwjgl.opengl.GL11;
    011
    012@SideOnly(Side.CLIENT)
    013public class LoadingScreenRenderer implements IProgressUpdate
    014{
    015    private String field_73727_a = "";
    016
    017    /** A reference to the Minecraft object. */
    018    private Minecraft mc;
    019
    020    /**
    021     * The text currently displayed (i.e. the argument to the last call to printText or func_73722_d)
    022     */
    023    private String currentlyDisplayedText = "";
    024    private long field_73723_d = Minecraft.getSystemTime();
    025    private boolean field_73724_e = false;
    026
    027    public LoadingScreenRenderer(Minecraft par1Minecraft)
    028    {
    029        this.mc = par1Minecraft;
    030    }
    031
    032    /**
    033     * this string, followed by "working..." and then the "% complete" are the 3 lines shown. This resets progress to 0,
    034     * and the WorkingString to "working...".
    035     */
    036    public void resetProgressAndMessage(String par1Str)
    037    {
    038        this.field_73724_e = false;
    039        this.func_73722_d(par1Str);
    040    }
    041
    042    /**
    043     * "Saving level", or the loading,or downloading equivelent
    044     */
    045    public void displayProgressMessage(String par1Str)
    046    {
    047        this.field_73724_e = true;
    048        this.func_73722_d(par1Str);
    049    }
    050
    051    public void func_73722_d(String par1Str)
    052    {
    053        this.currentlyDisplayedText = par1Str;
    054
    055        if (!this.mc.running)
    056        {
    057            if (!this.field_73724_e)
    058            {
    059                throw new MinecraftError();
    060            }
    061        }
    062        else
    063        {
    064            ScaledResolution var2 = new ScaledResolution(this.mc.gameSettings, this.mc.displayWidth, this.mc.displayHeight);
    065            GL11.glClear(256);
    066            GL11.glMatrixMode(GL11.GL_PROJECTION);
    067            GL11.glLoadIdentity();
    068            GL11.glOrtho(0.0D, var2.getScaledWidth_double(), var2.getScaledHeight_double(), 0.0D, 100.0D, 300.0D);
    069            GL11.glMatrixMode(GL11.GL_MODELVIEW);
    070            GL11.glLoadIdentity();
    071            GL11.glTranslatef(0.0F, 0.0F, -200.0F);
    072        }
    073    }
    074
    075    /**
    076     * This is called with "Working..." by resetProgressAndMessage
    077     */
    078    public void resetProgresAndWorkingMessage(String par1Str)
    079    {
    080        if (!this.mc.running)
    081        {
    082            if (!this.field_73724_e)
    083            {
    084                throw new MinecraftError();
    085            }
    086        }
    087        else
    088        {
    089            this.field_73723_d = 0L;
    090            this.field_73727_a = par1Str;
    091            this.setLoadingProgress(-1);
    092            this.field_73723_d = 0L;
    093        }
    094    }
    095
    096    /**
    097     * Updates the progress bar on the loading screen to the specified amount. Args: loadProgress
    098     */
    099    public void setLoadingProgress(int par1)
    100    {
    101        if (!this.mc.running)
    102        {
    103            if (!this.field_73724_e)
    104            {
    105                throw new MinecraftError();
    106            }
    107        }
    108        else
    109        {
    110            long var2 = Minecraft.getSystemTime();
    111
    112            if (var2 - this.field_73723_d >= 100L)
    113            {
    114                this.field_73723_d = var2;
    115                ScaledResolution var4 = new ScaledResolution(this.mc.gameSettings, this.mc.displayWidth, this.mc.displayHeight);
    116                int var5 = var4.getScaledWidth();
    117                int var6 = var4.getScaledHeight();
    118                GL11.glClear(256);
    119                GL11.glMatrixMode(GL11.GL_PROJECTION);
    120                GL11.glLoadIdentity();
    121                GL11.glOrtho(0.0D, var4.getScaledWidth_double(), var4.getScaledHeight_double(), 0.0D, 100.0D, 300.0D);
    122                GL11.glMatrixMode(GL11.GL_MODELVIEW);
    123                GL11.glLoadIdentity();
    124                GL11.glTranslatef(0.0F, 0.0F, -200.0F);
    125                GL11.glClear(16640);
    126                Tessellator var7 = Tessellator.instance;
    127                int var8 = this.mc.renderEngine.getTexture("/gui/background.png");
    128                GL11.glBindTexture(GL11.GL_TEXTURE_2D, var8);
    129                float var9 = 32.0F;
    130                var7.startDrawingQuads();
    131                var7.setColorOpaque_I(4210752);
    132                var7.addVertexWithUV(0.0D, (double)var6, 0.0D, 0.0D, (double)((float)var6 / var9));
    133                var7.addVertexWithUV((double)var5, (double)var6, 0.0D, (double)((float)var5 / var9), (double)((float)var6 / var9));
    134                var7.addVertexWithUV((double)var5, 0.0D, 0.0D, (double)((float)var5 / var9), 0.0D);
    135                var7.addVertexWithUV(0.0D, 0.0D, 0.0D, 0.0D, 0.0D);
    136                var7.draw();
    137
    138                if (par1 >= 0)
    139                {
    140                    byte var10 = 100;
    141                    byte var11 = 2;
    142                    int var12 = var5 / 2 - var10 / 2;
    143                    int var13 = var6 / 2 + 16;
    144                    GL11.glDisable(GL11.GL_TEXTURE_2D);
    145                    var7.startDrawingQuads();
    146                    var7.setColorOpaque_I(8421504);
    147                    var7.addVertex((double)var12, (double)var13, 0.0D);
    148                    var7.addVertex((double)var12, (double)(var13 + var11), 0.0D);
    149                    var7.addVertex((double)(var12 + var10), (double)(var13 + var11), 0.0D);
    150                    var7.addVertex((double)(var12 + var10), (double)var13, 0.0D);
    151                    var7.setColorOpaque_I(8454016);
    152                    var7.addVertex((double)var12, (double)var13, 0.0D);
    153                    var7.addVertex((double)var12, (double)(var13 + var11), 0.0D);
    154                    var7.addVertex((double)(var12 + par1), (double)(var13 + var11), 0.0D);
    155                    var7.addVertex((double)(var12 + par1), (double)var13, 0.0D);
    156                    var7.draw();
    157                    GL11.glEnable(GL11.GL_TEXTURE_2D);
    158                }
    159
    160                this.mc.fontRenderer.drawStringWithShadow(this.currentlyDisplayedText, (var5 - this.mc.fontRenderer.getStringWidth(this.currentlyDisplayedText)) / 2, var6 / 2 - 4 - 16, 16777215);
    161                this.mc.fontRenderer.drawStringWithShadow(this.field_73727_a, (var5 - this.mc.fontRenderer.getStringWidth(this.field_73727_a)) / 2, var6 / 2 - 4 + 8, 16777215);
    162                Display.update();
    163
    164                try
    165                {
    166                    Thread.yield();
    167                }
    168                catch (Exception var14)
    169                {
    170                    ;
    171                }
    172            }
    173        }
    174    }
    175
    176    /**
    177     * called when there is no more progress to be had, both on completion and failure
    178     */
    179    public void onNoMoreProgress() {}
    180}