001 package net.minecraft.client.renderer.entity;
002
003 import cpw.mods.fml.relauncher.Side;
004 import cpw.mods.fml.relauncher.SideOnly;
005 import net.minecraft.block.Block;
006 import net.minecraft.client.model.ModelBase;
007 import net.minecraft.client.model.ModelMinecart;
008 import net.minecraft.client.renderer.RenderBlocks;
009 import net.minecraft.entity.Entity;
010 import net.minecraft.entity.item.EntityMinecart;
011 import net.minecraft.util.MathHelper;
012 import net.minecraft.util.Vec3;
013 import org.lwjgl.opengl.GL11;
014
015 @SideOnly(Side.CLIENT)
016 public class RenderMinecart extends Render
017 {
018 /** instance of ModelMinecart for rendering */
019 protected ModelBase modelMinecart;
020
021 public RenderMinecart()
022 {
023 this.shadowSize = 0.5F;
024 this.modelMinecart = new ModelMinecart();
025 }
026
027 /**
028 * Renders the Minecart.
029 */
030 public void renderTheMinecart(EntityMinecart par1EntityMinecart, double par2, double par4, double par6, float par8, float par9)
031 {
032 GL11.glPushMatrix();
033 long var10 = (long)par1EntityMinecart.entityId * 493286711L;
034 var10 = var10 * var10 * 4392167121L + var10 * 98761L;
035 float var12 = (((float)(var10 >> 16 & 7L) + 0.5F) / 8.0F - 0.5F) * 0.004F;
036 float var13 = (((float)(var10 >> 20 & 7L) + 0.5F) / 8.0F - 0.5F) * 0.004F;
037 float var14 = (((float)(var10 >> 24 & 7L) + 0.5F) / 8.0F - 0.5F) * 0.004F;
038 GL11.glTranslatef(var12, var13, var14);
039 double var15 = par1EntityMinecart.lastTickPosX + (par1EntityMinecart.posX - par1EntityMinecart.lastTickPosX) * (double)par9;
040 double var17 = par1EntityMinecart.lastTickPosY + (par1EntityMinecart.posY - par1EntityMinecart.lastTickPosY) * (double)par9;
041 double var19 = par1EntityMinecart.lastTickPosZ + (par1EntityMinecart.posZ - par1EntityMinecart.lastTickPosZ) * (double)par9;
042 double var21 = 0.30000001192092896D;
043 Vec3 var23 = par1EntityMinecart.func_70489_a(var15, var17, var19);
044 float var24 = par1EntityMinecart.prevRotationPitch + (par1EntityMinecart.rotationPitch - par1EntityMinecart.prevRotationPitch) * par9;
045
046 if (var23 != null)
047 {
048 Vec3 var25 = par1EntityMinecart.func_70495_a(var15, var17, var19, var21);
049 Vec3 var26 = par1EntityMinecart.func_70495_a(var15, var17, var19, -var21);
050
051 if (var25 == null)
052 {
053 var25 = var23;
054 }
055
056 if (var26 == null)
057 {
058 var26 = var23;
059 }
060
061 par2 += var23.xCoord - var15;
062 par4 += (var25.yCoord + var26.yCoord) / 2.0D - var17;
063 par6 += var23.zCoord - var19;
064 Vec3 var27 = var26.addVector(-var25.xCoord, -var25.yCoord, -var25.zCoord);
065
066 if (var27.lengthVector() != 0.0D)
067 {
068 var27 = var27.normalize();
069 par8 = (float)(Math.atan2(var27.zCoord, var27.xCoord) * 180.0D / Math.PI);
070 var24 = (float)(Math.atan(var27.yCoord) * 73.0D);
071 }
072 }
073
074 GL11.glTranslatef((float)par2, (float)par4, (float)par6);
075 GL11.glRotatef(180.0F - par8, 0.0F, 1.0F, 0.0F);
076 GL11.glRotatef(-var24, 0.0F, 0.0F, 1.0F);
077 float var28 = (float)par1EntityMinecart.func_70496_j() - par9;
078 float var30 = (float)par1EntityMinecart.getDamage() - par9;
079
080 if (var30 < 0.0F)
081 {
082 var30 = 0.0F;
083 }
084
085 if (var28 > 0.0F)
086 {
087 GL11.glRotatef(MathHelper.sin(var28) * var28 * var30 / 10.0F * (float)par1EntityMinecart.func_70493_k(), 1.0F, 0.0F, 0.0F);
088 }
089
090 if (par1EntityMinecart.minecartType != 0)
091 {
092 this.loadTexture("/terrain.png");
093 float var29 = 0.75F;
094 GL11.glScalef(var29, var29, var29);
095
096 if (par1EntityMinecart.minecartType == 1)
097 {
098 GL11.glTranslatef(0.0F, 0.5F, 0.0F);
099 (new RenderBlocks()).renderBlockAsItem(Block.chest, 0, par1EntityMinecart.getBrightness(par9));
100 GL11.glRotatef(-90.0F, 0.0F, 1.0F, 0.0F);
101 GL11.glTranslatef(0.5F, 0.0F, -0.5F);
102 GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
103 }
104 else if (par1EntityMinecart.minecartType == 2)
105 {
106 GL11.glTranslatef(0.0F, 0.3125F, 0.0F);
107 (new RenderBlocks()).renderBlockAsItem(Block.stoneOvenIdle, 0, par1EntityMinecart.getBrightness(par9));
108 GL11.glRotatef(-90.0F, 0.0F, 1.0F, 0.0F);
109 GL11.glTranslatef(0.0F, -0.3125F, 0.0F);
110 GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
111 }
112
113 GL11.glScalef(1.0F / var29, 1.0F / var29, 1.0F / var29);
114 }
115
116 this.loadTexture("/item/cart.png");
117 GL11.glScalef(-1.0F, -1.0F, 1.0F);
118 this.modelMinecart.render(par1EntityMinecart, 0.0F, 0.0F, -0.1F, 0.0F, 0.0F, 0.0625F);
119 GL11.glPopMatrix();
120 }
121
122 /**
123 * Actually renders the given argument. This is a synthetic bridge method, always casting down its argument and then
124 * handing it off to a worker function which does the actual work. In all probabilty, the class Render is generic
125 * (Render<T extends Entity) and this method has signature public void doRender(T entity, double d, double d1,
126 * double d2, float f, float f1). But JAD is pre 1.5 so doesn't do that.
127 */
128 public void doRender(Entity par1Entity, double par2, double par4, double par6, float par8, float par9)
129 {
130 this.renderTheMinecart((EntityMinecart)par1Entity, par2, par4, par6, par8, par9);
131 }
132 }