001 package net.minecraft.src;
002
003 import cpw.mods.fml.common.Side;
004 import cpw.mods.fml.common.asm.SideOnly;
005 import java.nio.FloatBuffer;
006 import java.util.Random;
007 import net.minecraft.client.Minecraft;
008 import org.lwjgl.opengl.GL11;
009
010 @SideOnly(Side.CLIENT)
011 public class RenderEndPortal extends TileEntitySpecialRenderer
012 {
013 FloatBuffer field_76908_a = GLAllocation.createDirectFloatBuffer(16);
014
015 /**
016 * Renders the End Portal.
017 */
018 public void renderEndPortalTileEntity(TileEntityEndPortal par1TileEntityEndPortal, double par2, double par4, double par6, float par8)
019 {
020 float var9 = (float)this.tileEntityRenderer.playerX;
021 float var10 = (float)this.tileEntityRenderer.playerY;
022 float var11 = (float)this.tileEntityRenderer.playerZ;
023 GL11.glDisable(GL11.GL_LIGHTING);
024 Random var12 = new Random(31100L);
025 float var13 = 0.75F;
026
027 for (int var14 = 0; var14 < 16; ++var14)
028 {
029 GL11.glPushMatrix();
030 float var15 = (float)(16 - var14);
031 float var16 = 0.0625F;
032 float var17 = 1.0F / (var15 + 1.0F);
033
034 if (var14 == 0)
035 {
036 this.bindTextureByName("/misc/tunnel.png");
037 var17 = 0.1F;
038 var15 = 65.0F;
039 var16 = 0.125F;
040 GL11.glEnable(GL11.GL_BLEND);
041 GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
042 }
043
044 if (var14 == 1)
045 {
046 this.bindTextureByName("/misc/particlefield.png");
047 GL11.glEnable(GL11.GL_BLEND);
048 GL11.glBlendFunc(GL11.GL_ONE, GL11.GL_ONE);
049 var16 = 0.5F;
050 }
051
052 float var18 = (float)(-(par4 + (double)var13));
053 float var19 = var18 + ActiveRenderInfo.objectY;
054 float var20 = var18 + var15 + ActiveRenderInfo.objectY;
055 float var21 = var19 / var20;
056 var21 += (float)(par4 + (double)var13);
057 GL11.glTranslatef(var9, var21, var11);
058 GL11.glTexGeni(GL11.GL_S, GL11.GL_TEXTURE_GEN_MODE, GL11.GL_OBJECT_LINEAR);
059 GL11.glTexGeni(GL11.GL_T, GL11.GL_TEXTURE_GEN_MODE, GL11.GL_OBJECT_LINEAR);
060 GL11.glTexGeni(GL11.GL_R, GL11.GL_TEXTURE_GEN_MODE, GL11.GL_OBJECT_LINEAR);
061 GL11.glTexGeni(GL11.GL_Q, GL11.GL_TEXTURE_GEN_MODE, GL11.GL_EYE_LINEAR);
062 GL11.glTexGen(GL11.GL_S, GL11.GL_OBJECT_PLANE, this.func_76907_a(1.0F, 0.0F, 0.0F, 0.0F));
063 GL11.glTexGen(GL11.GL_T, GL11.GL_OBJECT_PLANE, this.func_76907_a(0.0F, 0.0F, 1.0F, 0.0F));
064 GL11.glTexGen(GL11.GL_R, GL11.GL_OBJECT_PLANE, this.func_76907_a(0.0F, 0.0F, 0.0F, 1.0F));
065 GL11.glTexGen(GL11.GL_Q, GL11.GL_EYE_PLANE, this.func_76907_a(0.0F, 1.0F, 0.0F, 0.0F));
066 GL11.glEnable(GL11.GL_TEXTURE_GEN_S);
067 GL11.glEnable(GL11.GL_TEXTURE_GEN_T);
068 GL11.glEnable(GL11.GL_TEXTURE_GEN_R);
069 GL11.glEnable(GL11.GL_TEXTURE_GEN_Q);
070 GL11.glPopMatrix();
071 GL11.glMatrixMode(GL11.GL_TEXTURE);
072 GL11.glPushMatrix();
073 GL11.glLoadIdentity();
074 GL11.glTranslatef(0.0F, (float)(Minecraft.getSystemTime() % 700000L) / 700000.0F, 0.0F);
075 GL11.glScalef(var16, var16, var16);
076 GL11.glTranslatef(0.5F, 0.5F, 0.0F);
077 GL11.glRotatef((float)(var14 * var14 * 4321 + var14 * 9) * 2.0F, 0.0F, 0.0F, 1.0F);
078 GL11.glTranslatef(-0.5F, -0.5F, 0.0F);
079 GL11.glTranslatef(-var9, -var11, -var10);
080 var19 = var18 + ActiveRenderInfo.objectY;
081 GL11.glTranslatef(ActiveRenderInfo.objectX * var15 / var19, ActiveRenderInfo.objectZ * var15 / var19, -var10);
082 Tessellator var24 = Tessellator.instance;
083 var24.startDrawingQuads();
084 var21 = var12.nextFloat() * 0.5F + 0.1F;
085 float var22 = var12.nextFloat() * 0.5F + 0.4F;
086 float var23 = var12.nextFloat() * 0.5F + 0.5F;
087
088 if (var14 == 0)
089 {
090 var23 = 1.0F;
091 var22 = 1.0F;
092 var21 = 1.0F;
093 }
094
095 var24.setColorRGBA_F(var21 * var17, var22 * var17, var23 * var17, 1.0F);
096 var24.addVertex(par2, par4 + (double)var13, par6);
097 var24.addVertex(par2, par4 + (double)var13, par6 + 1.0D);
098 var24.addVertex(par2 + 1.0D, par4 + (double)var13, par6 + 1.0D);
099 var24.addVertex(par2 + 1.0D, par4 + (double)var13, par6);
100 var24.draw();
101 GL11.glPopMatrix();
102 GL11.glMatrixMode(GL11.GL_MODELVIEW);
103 }
104
105 GL11.glDisable(GL11.GL_BLEND);
106 GL11.glDisable(GL11.GL_TEXTURE_GEN_S);
107 GL11.glDisable(GL11.GL_TEXTURE_GEN_T);
108 GL11.glDisable(GL11.GL_TEXTURE_GEN_R);
109 GL11.glDisable(GL11.GL_TEXTURE_GEN_Q);
110 GL11.glEnable(GL11.GL_LIGHTING);
111 }
112
113 private FloatBuffer func_76907_a(float par1, float par2, float par3, float par4)
114 {
115 this.field_76908_a.clear();
116 this.field_76908_a.put(par1).put(par2).put(par3).put(par4);
117 this.field_76908_a.flip();
118 return this.field_76908_a;
119 }
120
121 public void renderTileEntityAt(TileEntity par1TileEntity, double par2, double par4, double par6, float par8)
122 {
123 this.renderEndPortalTileEntity((TileEntityEndPortal)par1TileEntity, par2, par4, par6, par8);
124 }
125 }