//The camera cage keeps players from reaching the edge of the screen
public int SetupCameraCage()
{
var cameraCage = EntityManager.GetEntityManager().NewEntity();
// var renderComponentCage = new RenderComponentBuilder()
//// .Position((int)((int)viewportDimensions.X * 0.5), (int)(viewportDimensions.Y * 0.5), 2)
// .Position(0, 0, 2)
// .Dimensions((int)(viewportDimensions.X * 0.8), (int)(viewportDimensions.Y * 0.8))
// .Fixed(true).Build();
var cageSprite = new SpriteComponent()
{
SpriteName = "dot"
};
var collisionComponentCage = new CollisionComponent()
{
IsCage = true,
};
var offsetComponent = new RenderOffsetComponent()
{
Offset = new Vector2((float)(viewportDimensions.X * 0.25), (float)(viewportDimensions.Y * 0.25))
};
// ComponentManager.Instance.AddComponentToEntity(renderComponentCage, cameraCage);
// ComponentManager.Instance.AddComponentToEntity(cageSprite, cameraCage);
ComponentManager.Instance.AddComponentToEntity(collisionComponentCage, cameraCage);
ComponentManager.Instance.AddComponentToEntity(offsetComponent, cameraCage);
return(cameraCage);
}
// This method will render all the entities that are associated
// with the render component. 1. we use our Component manager instance
// to get all the entities with RenderComponent and then we render them.
// we use the spritebach to draw all the entities.
private void DrawEntities(SpriteBatch spriteBatch)
{
Dictionary <int, IComponent> renderableEntities =
ComponentManager.Instance.GetEntitiesWithComponent(typeof(RenderComponent));
foreach (var entity in renderableEntities)
{
PositionComponent positionComponent = ComponentManager.GetEntityComponentOrDefault <PositionComponent>(entity.Key);
if (positionComponent == null)
{
continue;
}
SpriteComponent sprite = ComponentManager.GetEntityComponentOrDefault <SpriteComponent>(entity.Key);
if (sprite == null)
{
continue;
}
RenderComponent renderComponent = entity.Value as RenderComponent;
RenderOffsetComponent offsetComponent = ComponentManager.GetEntityComponentOrDefault <RenderOffsetComponent>(entity.Key);
MoveComponent moveComponent = ComponentManager.GetEntityComponentOrDefault <MoveComponent>(entity.Key);
int zIndex = positionComponent.ZIndex;
Vector2 offset = offsetComponent?.Offset ?? default(Vector2);
float angle = moveComponent?.Direction ?? 0;
Rectangle destinationRectangle =
new Rectangle(
(int)(positionComponent.Position.X + offset.X),
(int)(positionComponent.Position.Y + offset.Y),
(int)(RenderComponentHelper.GetDimensions(renderComponent).Width *sprite.Scale),
(int)(RenderComponentHelper.GetDimensions(renderComponent).Height *sprite.Scale)
);
// render the sprite only if it's visible (sourceRectangle) intersects
// with the viewport.
KeyValuePair <int, IComponent> camera = ComponentManager.Instance.GetEntitiesWithComponent(typeof(CameraViewComponent)).First();
CameraViewComponent cameraViewComponent = camera.Value as CameraViewComponent;
if (cameraViewComponent.View.Intersects(destinationRectangle))
{
var spriteCrop = new Rectangle(
sprite.Position,
new Point(sprite.TileWidth, sprite.TileHeight)
);
spriteBatch.Draw(
texture: sprite.Sprite,
destinationRectangle: destinationRectangle,
sourceRectangle: spriteCrop,
color: Color.White * sprite.Alpha,
rotation: (float)angle,
origin: new Vector2(x: sprite.TileWidth / 2, y: sprite.TileHeight / 2),
effects: SpriteEffects.None,
layerDepth: (float)zIndex / SystemConstants.LayerDepthMaxLimit
//layerDepth is a float between 0-1, as a result ZIndex will have a dividend (i.e. limit)
);
}
}
}
public ButtonBuilder Offset(float x, float y)
{
_offsetComponent = new RenderOffsetComponent
{
Offset = new Vector2(x, y)
};
return(this);
}
//The camera cage keeps players from reaching the edge of the screen
public int SetupCameraCage()
{
var cameraCage = EntityManager.GetEntityManager().NewEntity();
var renderComponentCage = new RenderComponent()
{
DimensionsComponent = new DimensionsComponent()
{
Width = (int)(viewportDimensions.X * 0.8),
Height = (int)(viewportDimensions.Y * 0.8)
},
Fixed = true
};
var position = new PositionComponent()
{
Position = new Vector2(0, 0),
ZIndex = 2
};
var cageSprite = new SpriteComponent()
{
SpriteName = "dot"
};
var collisionComponentCage = new CollisionComponent()
{
IsCage = true,
};
var offsetComponent = new RenderOffsetComponent()
{
Offset = new Vector2((float)(viewportDimensions.X * 0.25), (float)(viewportDimensions.Y * 0.25))
};
ComponentManager.Instance.AddComponentToEntity(renderComponentCage, cameraCage);
// ComponentManager.Instance.AddComponentToEntity(cageSprite, cameraCage);
ComponentManager.Instance.AddComponentToEntity(position, cameraCage);
ComponentManager.Instance.AddComponentToEntity(collisionComponentCage, cameraCage);
ComponentManager.Instance.AddComponentToEntity(offsetComponent, cameraCage);
return(cameraCage);
}
