first commit

Minecraft.World/MoveControl.cpp

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+#include "stdafx.h"
+#include "net.minecraft.world.entity.ai.control.h"
+#include "net.minecraft.world.entity.h"
+#include "net.minecraft.world.phys.h"
+#include "MoveControl.h"
+
+const float MoveControl::MIN_SPEED = 0.0005f;
+const float MoveControl::MIN_SPEED_SQR = MIN_SPEED * MIN_SPEED;
+
+MoveControl::MoveControl(Mob *mob)
+{
+	this->mob = mob;
+	wantedX = mob->x;
+	wantedY = mob->y;
+	wantedZ = mob->z;
+
+	speed = 0.0f;
+
+	_hasWanted = false;
+}
+
+bool MoveControl::hasWanted()
+{
+	return _hasWanted;
+}
+
+float MoveControl::getSpeed()
+{
+	return speed;
+}
+
+void MoveControl::setWantedPosition(double x, double y, double z, float speed)
+{
+	wantedX = x;
+	wantedY = y;
+	wantedZ = z;
+	this->speed = speed;
+	_hasWanted = true;
+}
+
+void MoveControl::tick()
+{
+	mob->setYya(0);
+	if (!_hasWanted) return;
+	_hasWanted = false;
+
+	int yFloor = floor(mob->bb->y0 + .5f);
+
+	double xd = wantedX - mob->x;
+	double zd = wantedZ - mob->z;
+	double yd = wantedY - yFloor;
+	double dd = xd * xd + yd * yd + zd * zd;
+	if (dd < MIN_SPEED_SQR) return;
+
+	float yRotD = (float) (atan2(zd, xd) * 180 / PI) - 90;
+
+	mob->yRot = rotlerp(mob->yRot, yRotD, MAX_TURN);
+	mob->setSpeed(speed * mob->getWalkingSpeedModifier());
+
+	if (yd > 0 && xd * xd + zd * zd < 1) mob->getJumpControl()->jump();
+}
+
+float MoveControl::rotlerp(float a, float b, float max)
+{
+	float diff = Mth::wrapDegrees(b - a);
+	if (diff > max)
+	{
+		diff = max;
+	}
+	if (diff < -max)
+	{
+		diff = -max;
+	}
+	return a + diff;
+}