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118 lines
3.6 KiB
Java
118 lines
3.6 KiB
Java
package net.minecraft.entity.ai;
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import net.minecraft.entity.Entity;
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import net.minecraft.entity.EntityLiving;
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import net.minecraft.entity.EntityLivingBase;
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import net.minecraft.util.MathHelper;
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public class EntityLookHelper
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{
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private EntityLiving entity;
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/** The amount of change that is made each update for an entity facing a direction. */
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private float deltaLookYaw;
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/** The amount of change that is made each update for an entity facing a direction. */
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private float deltaLookPitch;
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/** Whether or not the entity is trying to look at something. */
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private boolean isLooking;
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private double posX;
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private double posY;
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private double posZ;
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private static final String __OBFID = "CL_00001572";
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public EntityLookHelper(EntityLiving p_i1613_1_)
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{
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this.entity = p_i1613_1_;
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}
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/**
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* Sets position to look at using entity
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*/
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public void setLookPositionWithEntity(Entity p_75651_1_, float p_75651_2_, float p_75651_3_)
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{
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this.posX = p_75651_1_.posX;
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if (p_75651_1_ instanceof EntityLivingBase)
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{
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this.posY = p_75651_1_.posY + (double)p_75651_1_.getEyeHeight();
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}
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else
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{
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this.posY = (p_75651_1_.boundingBox.minY + p_75651_1_.boundingBox.maxY) / 2.0D;
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}
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this.posZ = p_75651_1_.posZ;
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this.deltaLookYaw = p_75651_2_;
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this.deltaLookPitch = p_75651_3_;
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this.isLooking = true;
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}
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/**
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* Sets position to look at
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*/
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public void setLookPosition(double p_75650_1_, double p_75650_3_, double p_75650_5_, float p_75650_7_, float p_75650_8_)
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{
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this.posX = p_75650_1_;
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this.posY = p_75650_3_;
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this.posZ = p_75650_5_;
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this.deltaLookYaw = p_75650_7_;
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this.deltaLookPitch = p_75650_8_;
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this.isLooking = true;
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}
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/**
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* Updates look
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*/
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public void onUpdateLook()
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{
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this.entity.rotationPitch = 0.0F;
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if (this.isLooking)
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{
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this.isLooking = false;
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double d0 = this.posX - this.entity.posX;
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double d1 = this.posY - (this.entity.posY + (double)this.entity.getEyeHeight());
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double d2 = this.posZ - this.entity.posZ;
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double d3 = (double)MathHelper.sqrt_double(d0 * d0 + d2 * d2);
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float f = (float)(Math.atan2(d2, d0) * 180.0D / Math.PI) - 90.0F;
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float f1 = (float)(-(Math.atan2(d1, d3) * 180.0D / Math.PI));
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this.entity.rotationPitch = this.updateRotation(this.entity.rotationPitch, f1, this.deltaLookPitch);
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this.entity.rotationYawHead = this.updateRotation(this.entity.rotationYawHead, f, this.deltaLookYaw);
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}
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else
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{
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this.entity.rotationYawHead = this.updateRotation(this.entity.rotationYawHead, this.entity.renderYawOffset, 10.0F);
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}
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float f2 = MathHelper.wrapAngleTo180_float(this.entity.rotationYawHead - this.entity.renderYawOffset);
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if (!this.entity.getNavigator().noPath())
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{
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if (f2 < -75.0F)
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{
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this.entity.rotationYawHead = this.entity.renderYawOffset - 75.0F;
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}
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if (f2 > 75.0F)
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{
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this.entity.rotationYawHead = this.entity.renderYawOffset + 75.0F;
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}
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}
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}
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private float updateRotation(float p_75652_1_, float p_75652_2_, float p_75652_3_)
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{
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float f3 = MathHelper.wrapAngleTo180_float(p_75652_2_ - p_75652_1_);
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if (f3 > p_75652_3_)
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{
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f3 = p_75652_3_;
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}
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if (f3 < -p_75652_3_)
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{
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f3 = -p_75652_3_;
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}
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return p_75652_1_ + f3;
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}
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} |