first commit

Minecraft.World/DoorInteractGoal.cpp

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+#include "stdafx.h"
+#include "net.minecraft.world.entity.h"
+#include "net.minecraft.world.entity.ai.navigation.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.pathfinder.h"
+#include "net.minecraft.world.level.tile.h"
+#include "DoorInteractGoal.h"
+
+DoorInteractGoal::DoorInteractGoal(Mob *mob)
+{
+	doorX = doorY = doorZ = 0;
+	doorTile = NULL;
+	passed = false;
+	doorOpenDirX = doorOpenDirZ = 0.0f;
+
+	this->mob = mob;
+}
+
+bool DoorInteractGoal::canUse()
+{
+	if (!mob->horizontalCollision) return false;
+	PathNavigation *pathNav = mob->getNavigation();
+	Path *path = pathNav->getPath();
+	if (path == NULL || path->isDone() || !pathNav->canOpenDoors()) return false;
+
+	for (int i = 0; i < min(path->getIndex() + 2, path->getSize()); ++i)
+	{
+		Node *n = path->get(i);
+		doorX = n->x;
+		doorY = n->y + 1;
+		doorZ = n->z;
+		if (mob->distanceToSqr(doorX, mob->y, doorZ) > 1.5 * 1.5) continue;
+		doorTile = getDoorTile(doorX, doorY, doorZ);
+		if (doorTile == NULL) continue;
+		return true;
+	}
+
+	doorX = Mth::floor(mob->x);
+	doorY = Mth::floor(mob->y + 1);
+	doorZ = Mth::floor(mob->z);
+	doorTile = getDoorTile(doorX, doorY, doorZ);
+	return doorTile != NULL;
+}
+
+bool DoorInteractGoal::canContinueToUse()
+{
+	return !passed;
+}
+
+void DoorInteractGoal::start()
+{
+	passed = false;
+	doorOpenDirX = (float) (doorX + 0.5f - mob->x);
+	doorOpenDirZ = (float) (doorZ + 0.5f - mob->z);
+}
+
+void DoorInteractGoal::tick()
+{
+	float newDoorDirX = (float) (doorX + 0.5f - mob->x);
+	float newDoorDirZ = (float) (doorZ + 0.5f - mob->z);
+	float dot = doorOpenDirX * newDoorDirX + doorOpenDirZ * newDoorDirZ;
+	if (dot < 0)
+	{
+		passed = true;
+	}
+}
+
+DoorTile *DoorInteractGoal::getDoorTile(int x, int y, int z)
+{
+	int tileId = mob->level->getTile(x, y, z);
+	if (tileId != Tile::door_wood_Id) return NULL;
+	return (DoorTile *) Tile::tiles[tileId];
+}