first commit

Minecraft.World/TargetGoal.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include "Goal.h"
+
+class TargetGoal : public Goal
+{
+
+public:
+	static const int TargetFlag = 1;
+
+private:
+	static const int EmptyReachCache = 0;
+	static const int CanReachCache = 1;
+	static const int CantReachCache = 2;
+	static const int UnseenMemoryTicks = 60;
+
+protected:
+	Mob *mob; // Owner of this goal
+	float within;
+	bool mustSee;
+
+private:
+	bool mustReach;
+	int reachCache;
+	int reachCacheTime;
+	int unseenTicks;
+
+	void _init(Mob *mob, float within, bool mustSee, bool mustReach);
+
+public:
+	TargetGoal(Mob *mob, float within, bool mustSee);
+	TargetGoal(Mob *mob, float within, bool mustSee, bool mustReach);
+	virtual ~TargetGoal() {}
+
+	virtual bool canContinueToUse();
+	virtual void start();
+	virtual void stop();
+
+protected:
+	virtual bool canAttack(shared_ptr<Mob> target, bool allowInvulnerable);
+
+private:
+	bool canReach(shared_ptr<Mob> target);
+};