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