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- Improved logic for AiAttackController.toProtectAttacker() and added documentation

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This commit is contained in:
excessum
2014-08-23 08:10:35 +00:00
parent ba9de8197b
commit 19b50b4ff8
1 changed files with 21 additions and 14 deletions
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35
forge-ai/src/main/java/forge/ai/AiAttackController.java
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@@ -1075,20 +1075,29 @@ public class AiAttackController {
return false; // don't attack return false; // don't attack
} }
/**
* Find a protection type that will make an attacker unblockable.
* @param sa ability belonging to ApiType.Protection
* @return colour string or "artifacts", null if no possible choice exists
*/
public String toProtectAttacker(SpellAbility sa) { public String toProtectAttacker(SpellAbility sa) {
//AiAttackController is created with the selected attacker as the only entry in "attackers"
if (sa.getApi() != ApiType.Protection || oppList.isEmpty() || getPossibleBlockers(oppList, attackers).isEmpty()) { if (sa.getApi() != ApiType.Protection || oppList.isEmpty() || getPossibleBlockers(oppList, attackers).isEmpty()) {
return null; return null; //not protection sa or attacker is already unblockable
} }
final List<String> choices = ProtectEffect.getProtectionList(sa); final List<String> choices = ProtectEffect.getProtectionList(sa);
String color = ComputerUtilCard.getMostProminentColor(oppList), artifact = null; String color = ComputerUtilCard.getMostProminentColor(getPossibleBlockers(oppList, attackers)), artifact = null;
if (choices.contains("artifacts")) { if (choices.contains("artifacts")) {
artifact = "artifacts"; artifact = "artifacts"; //flag to indicate that protection from artifacts is available
} }
if (choices.contains(color)) { if (!choices.contains(color)) {
for (Card c : oppList) { color = null;
if (!c.isArtifact()) { }
artifact = null; for (Card c : oppList) { //find a blocker that ignores the currently selected protection
} if (artifact != null && !c.isArtifact()) {
artifact = null;
}
if (color != null) {
switch (color) { switch (color) {
case "black": case "black":
if (!c.isBlack()) { if (!c.isBlack()) {
@@ -1116,12 +1125,10 @@ public class AiAttackController {
} }
break; break;
} }
if (color == null && artifact == null) {
return null;
}
} }
} else { if (color == null && artifact == null) { //nothing can make the attacker unblockable
color = null; return null;
}
} }
if (color != null) { if (color != null) {
return color; return color;
@@ -1129,7 +1136,7 @@ public class AiAttackController {
if (artifact != null) { if (artifact != null) {
return artifact; return artifact;
} }
return null; return null; //should never get here
} }
} // end class ComputerUtil_Attack2 } // end class ComputerUtil_Attack2