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using System;
using Mundus.Data;
using Mundus.Data.Superlayers.Mobs;
using Mundus.Data.SuperLayers;
using Mundus.Service.SuperLayers;
using Mundus.Service.Tiles;
namespace Mundus.Service.Mobs.Controllers {
public static class MobMovement {
private static Random rnd = new Random();
/// <summary>
/// Moves all mobs that have a RndMovementRate of more than one on a random tile
/// in a 3x3 radius (including the tile they are currently on)
/// </summary>
public static void MoveRandomlyAllMobs() {
foreach(var superLayer in LI.AllSuperLayers())
{
for (int y = 0; y < MapSizes.CurrSize; y++)
{
for (int x = 0; x < MapSizes.CurrSize; x++)
{
MobTile mob = superLayer.GetMobLayerTile(y, x);
if (mob != null) {
// Checks validity of RndMovementRate and descides if a mob will move to another tile
if (mob.RndMovementRate > 0 && rnd.Next(0, mob.RndMovementRate) == 1)
{
int newYPos = rnd.Next(mob.YPos - 1, mob.YPos + 2);
int newXPos = rnd.Next(mob.XPos - 1, mob.XPos + 2);
ChangeMobPosition(mob, newYPos, newXPos, MapSizes.CurrSize);
}
}
}
}
}
}
public static void ChangeMobPosition(MobTile mob, int yPos, int xPos, int mapSize) {
if (InBoundaries(yPos, xPos)) {
if (CanWalkAt(mob, yPos, xPos)) {
ChangeMobPosition(mob, yPos, xPos);
}
}
}
public static void MovePlayer(int yPos, int xPos, int mapSize) {
ChangeMobPosition(MI.Player, yPos, xPos, mapSize);
}
private static void ChangeMobPosition(MobTile mob, int yPos, int xPos) {
// Mob is removed from his current superlayer and in the end is added to the new one
// Note: mob could not move, but will still be removed and readded to the superlayer
mob.CurrSuperLayer.RemoveMobFromPosition(mob.YPos, mob.XPos);
// If mob can go down a layer from a hole
if (mob.CurrSuperLayer.GetGroundLayerTile(yPos, xPos) == null &&
HeightController.GetLayerUnderneathMob(mob) != null)
{
if (HeightController.GetLayerUnderneathMob(mob).GetMobLayerTile(yPos, xPos) == null)
{
mob.CurrSuperLayer = HeightController.GetLayerUnderneathMob(mob);
}
}
// If mob can go down a layer from non-solid ground
else if (!mob.CurrSuperLayer.GetGroundLayerTile(yPos, xPos).Solid &&
HeightController.GetLayerUnderneathMob(mob) != null)
{
if (HeightController.GetLayerUnderneathMob(mob).GetMobLayerTile(yPos, xPos) == null)
{
mob.CurrSuperLayer = HeightController.GetLayerUnderneathMob(mob);
}
}
// If mob can climb up
else if (mob.CurrSuperLayer.GetStructureLayerTile(yPos, xPos) != null &&
HeightController.GetLayerAboveMob(mob).GetMobLayerTile(yPos, xPos) == null)
{
// Mobs can only climb to the superlayer on top of them, if
// there is a climable structure and there is a "hole" on top of the climable structure
if (mob.CurrSuperLayer.GetStructureLayerTile(yPos, xPos).IsClimable &&
HeightController.GetLayerAboveMob(mob) != null)
{
// The ground above isn't solid or doesnt exist and there are no mobs on top
if (HeightController.GetLayerAboveMob(mob).GetGroundLayerTile(yPos, xPos) == null ||
!HeightController.GetLayerAboveMob(mob).GetGroundLayerTile(yPos, xPos).Solid)
{
mob.CurrSuperLayer = HeightController.GetLayerAboveMob(mob);
}
else {
// TODO: add a message to log
}
}
}
mob.YPos = yPos;
mob.XPos = xPos;
mob.CurrSuperLayer.SetMobAtPosition(mob, yPos, xPos);
}
private static bool CanWalkAt(MobTile mob, int yPos, int xPos) {
//Mobs can only walk on free ground (no structure or mob) or walkable structures
return (mob.CurrSuperLayer.GetStructureLayerTile(yPos, xPos) == null ||
mob.CurrSuperLayer.GetStructureLayerTile(yPos, xPos).IsWalkable) &&
(mob.CurrSuperLayer.GetMobLayerTile(yPos, xPos) == null ||
mob.CurrSuperLayer.GetMobLayerTile(yPos, xPos) == mob);
}
// Returns if the chosen new location is inside the map
private static bool InBoundaries(int yPos, int xPos) {
return yPos >= 0 && xPos >= 0 && yPos < MapSizes.CurrSize && xPos < MapSizes.CurrSize;
}
}
}
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