first commit

Minecraft.World/LeapAtTargetGoal.cpp

@@ -0,0 +1,40 @@
+#include "stdafx.h"
+#include "net.minecraft.world.entity.ai.control.h"
+#include "net.minecraft.world.entity.h"
+#include "LeapAtTargetGoal.h"
+
+LeapAtTargetGoal::LeapAtTargetGoal(Mob *mob, float yd)
+{
+	target = weak_ptr<Mob>();
+
+	this->mob = mob;
+	this->yd = yd;
+	setRequiredControlFlags(Control::JumpControlFlag | Control::MoveControlFlag);
+}
+
+bool LeapAtTargetGoal::canUse()
+{
+	target = weak_ptr<Mob>(mob->getTarget());
+	if (target.lock() == NULL) return false;
+	double d = mob->distanceToSqr(target.lock());
+	if (d < 2 * 2 || d > 4 * 4) return false;
+	if (!mob->onGround) return false;
+	if (mob->getRandom()->nextInt(5) != 0) return false;
+	return true;
+}
+
+bool LeapAtTargetGoal::canContinueToUse()
+{
+	return target.lock() != NULL && !mob->onGround;
+}
+
+void LeapAtTargetGoal::start()
+{
+	// TODO: move to control?
+	double xdd = target.lock()->x - mob->x;
+	double zdd = target.lock()->z - mob->z;
+	float dd = sqrt(xdd * xdd + zdd * zdd);
+	mob->xd += (xdd / dd * 0.5f) * 0.8f + mob->xd * 0.2f;
+	mob->zd += (zdd / dd * 0.5f) * 0.8f + mob->zd * 0.2f;
+	mob->yd = yd;
+}