ParticleFootStep.java 文件源码

/**
 * Renders the particle
 */
public void renderParticle(VertexBuffer worldRendererIn, Entity entityIn, float partialTicks, float rotationX, float rotationZ, float rotationYZ, float rotationXY, float rotationXZ)
{
    float f = ((float)this.footstepAge + partialTicks) / (float)this.footstepMaxAge;
    f = f * f;
    float f1 = 2.0F - f * 2.0F;

    if (f1 > 1.0F)
    {
        f1 = 1.0F;
    }

    f1 = f1 * 0.2F;
    GlStateManager.disableLighting();
    float f2 = 0.125F;
    float f3 = (float)(this.posX - interpPosX);
    float f4 = (float)(this.posY - interpPosY);
    float f5 = (float)(this.posZ - interpPosZ);
    float f6 = this.worldObj.getLightBrightness(new BlockPos(this.posX, this.posY, this.posZ));
    this.currentFootSteps.bindTexture(FOOTPRINT_TEXTURE);
    GlStateManager.enableBlend();
    GlStateManager.blendFunc(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA);
    worldRendererIn.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
    worldRendererIn.pos((double)(f3 - 0.125F), (double)f4, (double)(f5 + 0.125F)).tex(0.0D, 1.0D).color(f6, f6, f6, f1).endVertex();
    worldRendererIn.pos((double)(f3 + 0.125F), (double)f4, (double)(f5 + 0.125F)).tex(1.0D, 1.0D).color(f6, f6, f6, f1).endVertex();
    worldRendererIn.pos((double)(f3 + 0.125F), (double)f4, (double)(f5 - 0.125F)).tex(1.0D, 0.0D).color(f6, f6, f6, f1).endVertex();
    worldRendererIn.pos((double)(f3 - 0.125F), (double)f4, (double)(f5 - 0.125F)).tex(0.0D, 0.0D).color(f6, f6, f6, f1).endVertex();
    Tessellator.getInstance().draw();
    GlStateManager.disableBlend();
    GlStateManager.enableLighting();
}