RenderDragonBreath.java

package minefantasy.mf2.client.render;

import minefantasy.mf2.api.helpers.TextureHelperMF;
import minefantasy.mf2.entity.EntityDragonBreath;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.entity.Render;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.entity.Entity;
import net.minecraft.util.ResourceLocation;

import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

@SideOnly(Side.CLIENT)
public class RenderDragonBreath extends Render
{
    public RenderDragonBreath()
    {
    }

    /**
     * Actually renders the given argument. This is a synthetic bridge method, always casting down its argument and then
     * handing it off to a worker function which does the actual work. In all probabilty, the class Render is generic
     * (Render<T extends Entity) and this method has signature public void func_76986_a(T entity, double d, double d1,
     * double d2, float f, float f1). But JAD is pre 1.5 so doesn't do that.
     */
    public void doRender(Entity entity, double x, double y, double z, float f, float f1)
    {
    	if(!(entity instanceof EntityDragonBreath))return;
    	EntityDragonBreath breath = (EntityDragonBreath)entity;
    	if(breath.isInvisible())return;
    	
        GL11.glPushMatrix();
        GL11.glTranslatef((float)x, (float)y, (float)z);
        GL11.glEnable(GL12.GL_RESCALE_NORMAL);
        float baseSize = 1.0F;
        GL11.glScalef(baseSize+entity.width, baseSize+entity.height, baseSize+entity.width);
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glColor3f(1, 1, 1);
        Minecraft.getMinecraft().getTextureManager().bindTexture(TextureHelperMF.getResource(breath.getTextureName() + ".png"));
        GL11.glDepthMask(false);
        Tessellator tessellator = Tessellator.instance;
        this.renderImg(breath, tessellator);
        GL11.glDisable(GL12.GL_RESCALE_NORMAL);
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glColor3f(1, 1, 1);
        GL11.glPopMatrix();
    }

    /**
     * Returns the location of an entity's texture. Doesn't seem to be called unless you call Render.bindEntityTexture.
     */
    protected ResourceLocation getEntityTexture(Entity p_110775_1_)
    {
        return TextureMap.locationItemsTexture;
    }

    private void renderImg(EntityDragonBreath breath, Tessellator tessellator)
    {
        float x1 = 0;
        float x2 = 1;
        float y1 = 0;
        float y2 = 1;
        float f4 = 1.0F;
        float f5 = 0.5F;
        float f6 = 0.25F;
        GL11.glRotatef(180.0F - this.renderManager.playerViewY, 0.0F, 1.0F, 0.0F);
        GL11.glRotatef(-this.renderManager.playerViewX, 1.0F, 0.0F, 0.0F);
        GL11.glRotatef(breath.ticksExisted*36, 0.0F, 0.0F, 0.1F);
        tessellator.startDrawingQuads();
        tessellator.setNormal(0.0F, 1.0F, 0.0F);
        tessellator.addVertexWithUV((double)(0.0F - f5), (double)(0.0F - f6), 0.0D, (double)x1, (double)y2);
        tessellator.addVertexWithUV((double)(f4 - f5), (double)(0.0F - f6), 0.0D, (double)x2, (double)y2);
        tessellator.addVertexWithUV((double)(f4 - f5), (double)(f4 - f6), 0.0D, (double)x2, (double)y1);
        tessellator.addVertexWithUV((double)(0.0F - f5), (double)(f4 - f6), 0.0D, (double)x1, (double)y1);
        tessellator.draw();
    }
}