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using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using V3.Camera;
using V3.Objects;
namespace V3.Map
{
/// <summary>
/// Manager for loading and drawing game maps. Also holds information about map attributes.
/// </summary>
[SuppressMessage("ReSharper", "UnusedMember.Global")]
public interface IMapManager
{
/// <summary>
/// A list of map areas (rectangle-sized).
/// </summary>
List<Area> Areas { get; }
/// <summary>
/// Size of the shown map in pixels.
/// </summary>
Point SizeInPixel { get; }
/// <summary>
/// Size of the map in tiles. (Some tiles are cut off at the edges.)
/// </summary>
Point SizeInTiles { get; }
/// <summary>
/// Size of a single tile in pixels.
/// </summary>
Point TileSize { get; }
/// <summary>
/// Number of cells the pathfinding grid consists of.
/// </summary>
Point PathfindingGridSize { get; }
/// <summary>
/// Size of a single cell of the pathfinding grid in pixels.
/// </summary>
Point PathfindingCellSize { get; }
/// <summary>
/// File name of the loaded map (without suffix).
/// </summary>
string FileName { get; }
/// <summary>
/// Efficiently draw the floor layer. Only draw the tiles seen by the camera.
/// </summary>
/// <param name="spriteBatch"></param>
/// <param name="camera"></param>
void DrawFloor(SpriteBatch spriteBatch, ICamera camera);
/// <summary>
/// Load a map file and create the map layers and pathfinding information.
/// </summary>
/// <param name="fileName">Name of the map file (without suffix).</param>
void Load(string fileName);
/// <summary>
/// Returns all objects in the objects layer.
/// </summary>
/// <returns>List of all static game objects imported from the map.</returns>
List<IGameObject> GetObjects();
/// <summary>
/// Returns the pathfinding grid for passing to the pathfinder.
/// </summary>
/// <returns>A grid used for pathfinding.</returns>
PathfindingGrid GetPathfindingGrid();
/// <summary>
/// Efficiently draw the pathfinding grid. For debugging purposes.
/// </summary>
/// <param name="spriteBatch">Sprite batch used.</param>
/// <param name="camera">Current camera for calculating the shown screen.</param>
void DrawPathfindingGrid(SpriteBatch spriteBatch, ICamera camera);
/// <summary>
/// Draws the minimap to specified position.
/// </summary>
/// <param name="spriteBatch">Sprite batch used.</param>
/// <param name="position">Where to draw the minimap and which size.</param>
void DrawMinimap(SpriteBatch spriteBatch, Rectangle position);
/// <summary>
/// Automatically creates an initial population from the map data and returns it.
/// </summary>
/// <param name="creatureFactory">Factory for creating creatues.</param>
/// <param name="pathfinder">Pathfinder is used for checking collisions when creating creatures.</param>
/// <returns>Initial population in a list.</returns>
List<ICreature> GetPopulation(CreatureFactory creatureFactory, Pathfinder pathfinder);
}
}
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