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[MH2] Implemented Carth the Lion (#7848)

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* [MH2] Implemented Carth the Lion

* [MH2] Carth the Lion - Fixed loyalty cost modification

* Fix copy constructor and add getters/setters

* Call sourceObject.adjustCosts before checking cost modifications

* Add unit test

* Added additional comments, checks and tests;

Co-authored-by: Oleg Agafonov <jaydi85@gmail.com>
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Daniel Bomar 2021-07-14 15:12:25 -05:00 • committed by GitHub
parent 3ea08e1e7b
commit 29d3f96340
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7 changed files with 353 additions and 24 deletions
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48
Mage/src/main/java/mage/abilities/LoyaltyAbility.java
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@ -1,6 +1,6 @@
package mage.abilities;
import mage.abilities.costs.Cost;
import mage.abilities.costs.common.PayLoyaltyCost;
import mage.abilities.costs.common.PayVariableLoyaltyCost;
import mage.abilities.effects.Effect;
@ -9,7 +9,6 @@ import mage.constants.TimingRule;
import mage.constants.Zone;
/**
*
* @author BetaSteward_at_googlemail.com
*/
public class LoyaltyAbility extends ActivatedAbilityImpl {
@ -43,4 +42,49 @@ public class LoyaltyAbility extends ActivatedAbilityImpl {
return new LoyaltyAbility(this);
}
/**
* Change loyalty cost by amount value
*
* @param amount
*/
public void increaseLoyaltyCost(int amount) {
// loyalty cost modification rules from Carth the Lion
// If a planeswalker’s loyalty ability normally has a cost of [+1], Carth’s ability makes it cost [+2] instead.
// A cost of [0] would become [+1], and a cost of [-6] would become [-5].
// (2021-06-18)
//
// If you somehow manage to control two Carths (perhaps because of Spark Double), the cost-changing effect is
// cumulative. In total, loyalty abilities will cost an additional [+2] to activate.
// (2021-06-18)
//
// The total cost of a planeswalker’s loyalty ability is calculated before any counters are added or removed.
// If a loyalty ability normally costs [-3] to activate, you do not remove three counters from it and then
// put one counter on it. You remove two counters at one time when you pay the cost.
// (2021-06-18)
//
// If an effect replaces the number of counters that would be placed on a planeswalker, such as that of
// Vorinclex, Monstrous Raider, that replacement happens only once, at the time payment is made.
// (2021-06-18)
// cost modification support only 1 cost item
int staticCount = 0;
for (Cost cost : costs) {
if (cost instanceof PayLoyaltyCost) {
// static cost
PayLoyaltyCost staticCost = (PayLoyaltyCost) cost;
staticCost.setAmount(staticCost.getAmount() + amount);
staticCount++;
} else if (cost instanceof PayVariableLoyaltyCost) {
// x cost (after x announce: x cost + static cost)
PayVariableLoyaltyCost xCost = (PayVariableLoyaltyCost) cost;
xCost.setCostModification(xCost.getCostModification() + amount);
}
}
if (staticCount > 1) {
throw new IllegalArgumentException(String.format("Loyalty ability must have only 1 static cost, but has %d: %s",
staticCount, this.getRule()));
}
}
}