WinDanesz
85 lines
3.7 KiB
Java
85 lines
3.7 KiB
Java
package electroblob.wizardry.potion;
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import electroblob.wizardry.Wizardry;
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import electroblob.wizardry.registry.WizardryPotions;
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import electroblob.wizardry.registry.WizardrySounds;
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import electroblob.wizardry.util.EntityUtils;
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import electroblob.wizardry.util.GeometryUtils;
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import electroblob.wizardry.util.NBTExtras;
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import net.minecraft.entity.EntityLivingBase;
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import net.minecraft.nbt.NBTUtil;
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import net.minecraft.util.ResourceLocation;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.Vec3d;
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import net.minecraftforge.event.entity.living.LivingEvent.LivingUpdateEvent;
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import net.minecraftforge.fml.common.Mod;
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import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
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@Mod.EventBusSubscriber
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public class PotionContainment extends PotionMagicEffect {
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public static final String ENTITY_TAG = "containmentPos";
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public PotionContainment(boolean isBadEffect, int liquidColour){
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super(isBadEffect, liquidColour, new ResourceLocation(Wizardry.MODID, "textures/gui/potion_icons/containment.png"));
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this.setPotionName("potion." + Wizardry.MODID + ":containment");
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}
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@Override
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public boolean isReady(int duration, int amplifier){
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return true; // Execute the effect every tick
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}
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public static float getContainmentDistance(int effectStrength){
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return 15 - effectStrength * 4;
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}
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@Override
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public void performEffect(EntityLivingBase target, int strength){
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float maxDistance = getContainmentDistance(strength);
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// Initialise the containment position to the entity's position if it wasn't set already
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if(!target.getEntityData().hasKey(ENTITY_TAG)){
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NBTExtras.storeTagSafely(target.getEntityData(), ENTITY_TAG, NBTUtil.createPosTag(new BlockPos(target.getPositionVector().subtract(0.5, 0.5, 0.5))));
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}
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Vec3d origin = GeometryUtils.getCentre(NBTUtil.getPosFromTag(target.getEntityData().getCompoundTag(ENTITY_TAG)));
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double x = target.posX, y = target.posY, z = target.posZ;
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// Containment fields are cubes so we're dealing with each axis separately
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if(target.getEntityBoundingBox().maxX > origin.x + maxDistance) x = origin.x + maxDistance - target.width/2;
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if(target.getEntityBoundingBox().minX < origin.x - maxDistance) x = origin.x - maxDistance + target.width/2;
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if(target.getEntityBoundingBox().maxY > origin.y + maxDistance) y = origin.y + maxDistance - target.height;
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if(target.getEntityBoundingBox().minY < origin.y - maxDistance) y = origin.y - maxDistance;
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if(target.getEntityBoundingBox().maxZ > origin.z + maxDistance) z = origin.z + maxDistance - target.width/2;
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if(target.getEntityBoundingBox().minZ < origin.z - maxDistance) z = origin.z - maxDistance + target.width/2;
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if(x != target.posX || y != target.posY || z != target.posZ)
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{
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target.addVelocity(0.15 * Math.signum(x - target.posX), 0.15 * Math.signum(y - target.posY), 0.15 * Math.signum(z - target.posZ));
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EntityUtils.undoGravity(target);
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if(target.world.isRemote){
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target.world.playSound(target.posX, target.posY, target.posZ, WizardrySounds.ENTITY_FORCEFIELD_DEFLECT,
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WizardrySounds.SPELLS, 0.3f, 1f, false);
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}
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}
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// Need to do this here because it's the only way to hook into potion ending both client- and server-side
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if(target.getActivePotionEffect(this).getDuration() <= 1) target.getEntityData().removeTag(ENTITY_TAG);
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}
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@SubscribeEvent
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public static void onLivingUpdateEvent(LivingUpdateEvent event){
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// This is LAST-RESORT CLEANUP. It does NOT need checking every tick! We always check for the actual potion anyway.
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if(event.getEntity().ticksExisted % 20 == 0 && event.getEntityLiving().getEntityData().hasKey(ENTITY_TAG)
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&& !event.getEntityLiving().isPotionActive(WizardryPotions.containment)){
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event.getEntityLiving().getEntityData().removeTag(ENTITY_TAG);
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}
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}
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}
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