public RenderSystem(GraphicsDevice graphics)
{
this.graphics = graphics;
spriteBatch = new SpriteBatch(graphics);
blackSquare = new RenderableSpriteComponent()
{
Texture = "square",
Tint = Color.Black
};
greySquare = new RenderableSpriteComponent()
{
Texture = "square",
Tint = new Color(Color.Black, 0.7f)
};
targetLine = new RenderableSpriteComponent()
{
Texture = "square",
Tint = new Color(Color.Gold, 0.7f),
};
targetIndicator = new RenderableSpriteComponent()
{
Texture = "targetIndicator"
};
}
/// <summary>
/// Draws mutli tile sprite to screen
/// </summary>
/// <param name="sprite">sprite to draw</param>
/// <param name="pos">relative screen position</param>
/// <param name="relAnchor">anchor of multi tile entity</param>
void DrawSpriteMultiTile(RenderableSpriteComponent sprite, Position pos, Position relAnchor, int width)
{
var localOffset = pos - relAnchor;
if (sprite.FlippedHorizontally)
{
localOffset.X = width - 1 - localOffset.X;
}
Point texLocation = new Point(localOffset.X * Util.TileSize, localOffset.Y * Util.TileSize);
Point size = new Point(Util.TileSize, Util.TileSize);
Rectangle sourceRect = new Rectangle(texLocation, size);
SpriteEffects effects = sprite.FlippedHorizontally ? SpriteEffects.FlipHorizontally : SpriteEffects.None;
spriteBatch.Draw(TextureManager.GetTexture(sprite.Texture), Util.WorldToScreenPosition(pos), sourceRect, sprite.Tint, 0f, Vector2.Zero, Vector2.One, effects, 0f);
}
public void RenderWorld(RenderTarget2D renderTarget)
{
floorSprite = new RenderableSpriteComponent()
{
Texture = Util.CurrentFloor.FloorTexture
};
graphics.SetRenderTarget(renderTarget);
spriteBatch.Begin(); //:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
graphics.Clear(Color.White);
// seen by player
var seenPositions = Util.CurrentFloor.GetSeenPositions().ToArray();
Position playerPos = Util.GetPlayerPos();
Floor floor = Util.CurrentFloor;
// camera capped to floor
int minX = Math.Max(0, Math.Min(floor.Width - Util.WorldViewTileWidth, playerPos.X - Util.WorldViewTileWidth / 2));
int minY = Math.Max(0, Math.Min(floor.Height - Util.WorldViewTileHeight, playerPos.Y - Util.WorldViewTileHeight / 2));
// camera uncapped
//int minX = playerPos.X - Util.WorldViewTileWidth / 2;
//int minY = playerPos.Y - Util.WorldViewTileHeight / 2;
min = new Position(minX, minY);
for (int y = 0; y < Util.WorldViewTileHeight; y++)
{
for (int x = 0; x < Util.WorldViewTileWidth; x++)
{
var relScreenPos = new Position(x, y);
var worldPos = min + relScreenPos;
Tile tile = floor.GetTile(worldPos);
if (FogOfWarEnabled && !tile.Discovered)
{
DrawSprite(blackSquare, relScreenPos);
continue;
}
if (tile.Terrain == 0)
{
DrawSprite(floorSprite, relScreenPos);
}
else
{
var sprite = EntityManager.GetComponent <RenderableSpriteComponent>(tile.Terrain);
if (sprite != null && sprite.Visible)
{
DrawSprite(sprite, relScreenPos);
}
}
if (tile.Structure != 0)
{
var sprite = EntityManager.GetComponent <RenderableSpriteComponent>(tile.Structure);
if (sprite != null && sprite.Visible)
{
var multiTileC = EntityManager.GetComponent <MultiTileComponent>(tile.Structure);
if (multiTileC == null)
{
DrawSprite(sprite, relScreenPos);
}
else
{
var relAnchor = multiTileC.Anchor - min;
DrawSpriteMultiTile(sprite, relScreenPos, relAnchor, multiTileC.Width);
}
}
}
if (FogOfWarEnabled && !seenPositions.Contains(worldPos))
{
DrawSprite(greySquare, relScreenPos);
continue;
}
if (tile.Items != null && tile.Items.Count > 0)
{
var sprite = EntityManager.GetComponent <RenderableSpriteComponent>(tile.Items.Last());
if (sprite != null && sprite.Visible)
{
DrawSprite(sprite, relScreenPos);
}
}
if (tile.Character != 0)
{
//Log.Data(DescriptionSystem.GetDebugInfoEntity(tile.Character));
var sprite = EntityManager.GetComponent <RenderableSpriteComponent>(tile.Character);
if (sprite != null && sprite.Visible)
{
var multiTileC = EntityManager.GetComponent <MultiTileComponent>(tile.Character);
if (multiTileC == null)
{
DrawSprite(sprite, relScreenPos);
}
else
{
var relAnchor = multiTileC.Anchor - min;
DrawSpriteMultiTile(sprite, relScreenPos, relAnchor, multiTileC.Width);
}
}
}
if (tile.DebugInfo.Length > 0)
{
spriteBatch.DrawString(Util.SmallFont, tile.DebugInfo, Util.WorldToScreenPosition(relScreenPos), Color.Red);
}
}
}
// draw target line if necessary
if (InputManager.Instance.GetCurrentDomain() == InputManager.CommandDomain.Targeting)
{
var targetPos = EntityManager.GetComponent <TransformComponent>(Util.TargetIndicatorID).Position;
var line = Util.CurrentFloor.GetLine(playerPos, targetPos, true);
if (line.Count > 1)
{
line.RemoveAt(0); // don't draw square on player unless targeting self
}
foreach (var pos in line)
{
DrawSprite(targetLine, pos - min);
}
DrawSprite(targetIndicator, targetPos - min);
}
spriteBatch.End(); //:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
graphics.SetRenderTarget(null);
}
/// <summary>
/// Draws sprite to screen
/// </summary>
/// <param name="sprite">sprite to draw</param>
/// <param name="pos">relative screen position</param>
void DrawSprite(RenderableSpriteComponent sprite, Position pos)
{
SpriteEffects effects = sprite.FlippedHorizontally ? SpriteEffects.FlipHorizontally : SpriteEffects.None;
spriteBatch.Draw(TextureManager.GetTexture(sprite.Texture), Util.WorldToScreenPosition(pos), null, sprite.Tint, 0f, Vector2.Zero, Vector2.One, effects, 0f);
}
