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.client.model.ModelBase;
006    import net.minecraft.entity.EntityLiving;
007    import net.minecraft.entity.monster.EntitySlime;
008    import org.lwjgl.opengl.GL11;
009    
010    @SideOnly(Side.CLIENT)
011    public class RenderSlime extends RenderLiving
012    {
013        private ModelBase scaleAmount;
014    
015        public RenderSlime(ModelBase par1ModelBase, ModelBase par2ModelBase, float par3)
016        {
017            super(par1ModelBase, par3);
018            this.scaleAmount = par2ModelBase;
019        }
020    
021        /**
022         * Determines whether Slime Render should pass or not.
023         */
024        protected int shouldSlimeRenderPass(EntitySlime par1EntitySlime, int par2, float par3)
025        {
026            if (par1EntitySlime.getHasActivePotion())
027            {
028                return 0;
029            }
030            else if (par2 == 0)
031            {
032                this.setRenderPassModel(this.scaleAmount);
033                GL11.glEnable(GL11.GL_NORMALIZE);
034                GL11.glEnable(GL11.GL_BLEND);
035                GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
036                return 1;
037            }
038            else
039            {
040                if (par2 == 1)
041                {
042                    GL11.glDisable(GL11.GL_BLEND);
043                    GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
044                }
045    
046                return -1;
047            }
048        }
049    
050        /**
051         * sets the scale for the slime based on getSlimeSize in EntitySlime
052         */
053        protected void scaleSlime(EntitySlime par1EntitySlime, float par2)
054        {
055            float var3 = (float)par1EntitySlime.getSlimeSize();
056            float var4 = (par1EntitySlime.field_70812_c + (par1EntitySlime.field_70811_b - par1EntitySlime.field_70812_c) * par2) / (var3 * 0.5F + 1.0F);
057            float var5 = 1.0F / (var4 + 1.0F);
058            GL11.glScalef(var5 * var3, 1.0F / var5 * var3, var5 * var3);
059        }
060    
061        /**
062         * Allows the render to do any OpenGL state modifications necessary before the model is rendered. Args:
063         * entityLiving, partialTickTime
064         */
065        protected void preRenderCallback(EntityLiving par1EntityLiving, float par2)
066        {
067            this.scaleSlime((EntitySlime)par1EntityLiving, par2);
068        }
069    
070        /**
071         * Queries whether should render the specified pass or not.
072         */
073        protected int shouldRenderPass(EntityLiving par1EntityLiving, int par2, float par3)
074        {
075            return this.shouldSlimeRenderPass((EntitySlime)par1EntityLiving, par2, par3);
076        }
077    }