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using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using V3.Camera;
using V3.Data;
using V3.Objects.Sprite;
namespace V3.Objects
{
/// <summary>
/// A moving game object.
/// </summary>
public interface ICreature : IGameObject
{
string Name { get; }
Vector2 InitialPosition { set; }
int Life { get; }
int MaxLife { get; }
int Speed { get; }
int Attack { get; }
int AttackRadius { get; }
int SightRadius { get; }
TimeSpan TotalRecovery { get; }
TimeSpan Recovery { get; set; }
/// <summary>
/// Area where the creature is standing. Used for collisions.
/// </summary>
/// <summary>
/// Where you can click to select the creature.
/// </summary>
Rectangle SelectionRectangle { get; }
bool IsSelected { get; set; }
ICreature IsAttacking { get; set; }
IBuilding IsAttackingBuilding { get; set; }
MovementDirection MovementDirection { get; set; }
MovementState MovementState { get; set; }
Faction Faction { get; }
bool IsDead { get; }
bool IsUpgraded { get; set; }
/// <summary>
/// Creature takes specific amount of damage. Substracted from Life.
/// </summary>
/// <param name="damage">TakeDamage taken.</param>
void TakeDamage(int damage);
/// <summary>
/// Give command to move to desired destination. Not instant movement.
/// </summary>
/// <param name="destination">Destination in pixels.</param>
void Move (Vector2 destination);
//void ImportentMove(IGameObject creature);
/// <summary>
/// Draws a static non-animated sprite (for HUD) at specified position.
/// </summary>
/// <param name="spriteBatch">Sprite batch used for drawing.</param>
/// <param name="position">Position where to draw the sprite.</param>
void DrawStatic(SpriteBatch spriteBatch, Point position);
/// <summary>
/// Update the creature behaviour and animation.
/// </summary>
void Update(GameTime gameTime, ICreature playerCharacter,
bool rightButtonPressed, Vector2 rightButtonPosition, Quadtree quadtree, ICamera camera);
/// <summary>
/// Change the equipment/sprite of the creature to something other.
/// If in debug mode the function throws an exception if the creature does not have the specified equipment slots.
/// </summary>
/// <param name="equipmentType">Which part of the equipment should be changed.</param>
/// <param name="sprite">Which sprite to use instead.</param>
void ChangeEquipment(EquipmentType equipmentType, ISpriteCreature sprite);
/// <summary>
/// Sets back the position of the creature to its state when created.
/// </summary>
void ResetPosition();
/// <summary>
/// Plays the specified animation fully, but only once.
/// </summary>
/// <param name="animation">For which movement state the animation should be played.</param>
/// <param name="duration">How long (or how slow) should the animation be?</param>
void PlayAnimationOnce(MovementState animation, TimeSpan duration);
/// <summary>
/// Heals the creature. Can not go over MaxLife.
/// </summary>
/// <param name="amount">How much HP the creature gains.</param>
void Heal(int amount);
/// <summary>
/// Creature gets more life and maxlife. Used for testing in Techdemo.
/// </summary>
/// <param name="modifier">Multiplyier for Life.</param>
void Empower(int modifier);
/// <summary>
/// Save this creature’s data to a CreatureData object.
/// </summary>
/// <returns>the CreatureData object with the status of this creature</returns>
CreatureData SaveData();
/// <summary>
/// Restore the creature's state from the given data.
/// </summary>
/// <param name="data">the state of the creature to restore</param>
void LoadData(CreatureData data);
/// <summary>
/// Restore the creature's references to other creatures from the given data.
/// </summary>
/// <param name="data">the state of the creature to restore</param>
/// <param name="creatures">the list of all creatures by ID</param>
void LoadReferences(CreatureData data, Dictionary<int, ICreature> creatures);
}
}
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