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using System;
using Celesteia.Game.Components.Items;
using Celesteia.Resources.Types;
using Celesteia.UI.Properties;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using MonoGame.Extended.Input;
using MonoGame.Extended.TextureAtlases;
namespace Celesteia.UI.Elements.Game {
public class InventorySlot : Clickable {
public const float SLOT_SIZE = 64f;
public const float SLOT_SPACING = 16f;
public InventorySlot(Rect rect) {
SetRect(rect);
}
public InventorySlot SetNewRect(Rect rect) {
SetRect(rect);
return this;
}
// SELECTION
private bool _selected = false;
public InventorySlot SetSelected(bool selected) {
_selected = selected;
return this;
}
public bool GetSelected() {
return _selected;
}
// INVENTORY REFERENCE PROPERTIES
private Inventory _inventory;
private int _slot;
public InventorySlot SetReferenceInventory(Inventory inventory) {
_inventory = inventory;
return this;
}
public InventorySlot SetSlot(int slot) {
_slot = slot;
return this;
}
// DRAWING PROPERTIES
private Texture2D _texture;
private TextureAtlas _patches;
private int _patchSize;
public InventorySlot SetTexture(Texture2D texture) {
_texture = texture;
return this;
}
public InventorySlot SetPatches(TextureAtlas patches, int size) {
if (_texture != null) {
_patchSize = size;
_patches = patches;
}
return this;
}
// TEXT PROPERTIES
private TextProperties _text;
public InventorySlot SetTextProperties(TextProperties text) {
_text = text;
return this;
}
public InventorySlot SetText(string text) {
_text.SetText(text);
return this;
}
// CLICKING PROPERTIES
private ClickEvent _onMouseDown = null;
private ClickEvent _onMouseUp = null;
public delegate void ItemHoverEvent(ItemType type);
private ItemHoverEvent _onMouseIn = null;
private HoverEvent _onMouseOut = null;
public InventorySlot SetOnMouseDown(ClickEvent func) {
_onMouseDown = func;
return this;
}
public InventorySlot SetOnMouseUp(ClickEvent func) {
_onMouseUp = func;
return this;
}
public InventorySlot SetOnMouseIn(ItemHoverEvent func) {
_onMouseIn = func;
return this;
}
public InventorySlot SetOnMouseOut(HoverEvent func) {
_onMouseOut = func;
return this;
}
public override void OnMouseDown(MouseButton button, Point position) {
base.OnMouseDown(button, position);
_onMouseDown?.Invoke(button, position);
}
public override void OnMouseUp(MouseButton button, Point position) {
base.OnMouseUp(button, position);
_onMouseUp?.Invoke(button, position);
}
public override void OnMouseIn() {
base.OnMouseIn();
if (_inventory.GetSlot(_slot) != null) _onMouseIn?.Invoke(_inventory.GetSlot(_slot).Type);
}
public override void OnMouseOut() {
base.OnMouseOut();
_onMouseOut?.Invoke();
}
private Rectangle GetScaledTriangle(Rectangle r, float scale) {
int newWidth = (int)Math.Round(r.Width * scale);
int newHeight = (int)Math.Round(r.Height * scale);
return new Rectangle(
(int)Math.Round(r.X + ((r.Width - newWidth) / 2f)),
(int)Math.Round(r.Y + ((r.Height - newHeight) / 2f)),
newWidth,
newHeight
);
}
Rectangle rectangle;
Rectangle itemRectangle;
Rectangle textRectangle;
ItemStack inSlot;
Color slightlyTransparent = new Color(255, 255, 255, 100);
public override void Draw(SpriteBatch spriteBatch)
{
if (_inventory == null) return;
rectangle = GetRectangle();
itemRectangle = GetScaledTriangle(rectangle, .6f);
textRectangle = GetScaledTriangle(rectangle, .4f);
// Draw the slot's texture.
if (_patches != null) ImageUtilities.DrawPatched(spriteBatch, rectangle, _patches, _patchSize, _selected ? Color.DarkViolet : Color.White);
else spriteBatch.Draw(GetTexture(spriteBatch), rectangle, null, Color.White);
// Draw item if present.
inSlot = _inventory.GetSlot(_slot);
if (inSlot != null) {
spriteBatch.Draw(inSlot.Type.Sprite, itemRectangle, Color.White);
if (inSlot.Amount > 1) TextUtilities.DrawAlignedText(spriteBatch, textRectangle, _text.GetFont(), $"{inSlot.Amount}", _text.GetColor(), _text.GetAlignment(), _text.GetFontSize());
} else TextUtilities.DrawAlignedText(spriteBatch, rectangle, _text.GetFont(), $"{_slot + 1}", slightlyTransparent, TextAlignment.Center, 24f);
}
public Texture2D GetTexture(SpriteBatch spriteBatch) {
if (_texture == null) {
_texture = new Texture2D(spriteBatch.GraphicsDevice, 1, 1);
_texture.SetData(new[] { Color.Gray });
}
return _texture;
}
public InventorySlot Clone() {
return new InventorySlot(GetRect())
.SetReferenceInventory(_inventory)
.SetOnMouseDown(_onMouseDown)
.SetOnMouseUp(_onMouseUp)
.SetOnMouseIn(_onMouseIn)
.SetOnMouseOut(_onMouseOut)
.SetSlot(_slot)
.SetTextProperties(_text)
.SetTexture(_texture)
.SetPatches(_patches, _patchSize);
}
}
}
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