Package org.collebol.engine.gui.graphics.renderer

Class CameraRenderer

java.lang.Object

org.collebol.engine.gui.graphics.renderer.Renderer

org.collebol.engine.gui.graphics.renderer.CameraRenderer

public class CameraRenderer
extends Renderer

Render objects within the canvas of the camera. Change the position of the camera and the view will change.

Since:

1.0-dev

Author:

ColleBol - contact@collebol.org

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CameraRenderer.TextBuilder

Constructor Summary

Constructors

Constructor	Description
CameraRenderer(EJGEngine e)

Method Summary

Modifier and Type	Method	Description
void	renderBatchObjects(Map<Integer,List<GameObject>> gameObjects)	Render a Map with a List of GameObjects as Batch.
void	renderLight(int id, GameLocation location, float radius, float[] color)	Render light relative to the camera.
void	renderObject(GameObject gameObject)	Render a GameObject relative to the Camera.
void	renderObjects(List<GameObject> gameObjects)	Render GameObjects relative to the Camera.
void	renderText(CameraRenderer.TextBuilder textBuilder)	Render text relative to the camera.
void	showCoordinates()	Displays various coordinates and camera information on the screen.
void	showGridLines()	Renders grid lines on the screen based on the camera's position and zoom level.
void	showOriginPoint()	Renders the origin point of the camera on the screen.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CameraRenderer

public CameraRenderer(EJGEngine e)

Method Details

renderObjects

public void renderObjects(List<GameObject> gameObjects)

Render GameObjects relative to the Camera.

Parameters:

gameObjects -

renderBatchObjects

public void renderBatchObjects(Map<Integer,List<GameObject>> gameObjects)

Render a Map with a List of GameObjects as Batch. This will improve performance a lot.

Parameters:

gameObjects -

See Also:

• Batch
• TextureRenderer.renderBatch(Batch, boolean)

renderObject

public void renderObject(GameObject gameObject)

Render a GameObject relative to the Camera.

Parameters:

gameObject -

renderText

public void renderText(CameraRenderer.TextBuilder textBuilder)

Render text relative to the camera.

Parameters:

textBuilder -

renderLight

public void renderLight(int id,
 GameLocation location,
 float radius,
 float[] color)

Render light relative to the camera.

Parameters:

location - the game location of the light

radius - radius of the light (how big)

color - the color of the light, example: new float[]{ 1.0f, 1.0f, 1.0f, 1.0f }

showOriginPoint

public void showOriginPoint()

Renders the origin point of the camera on the screen.

This method uses OpenGL to draw a red point at the camera's origin and a circle around it.

showCoordinates

public void showCoordinates()

Displays various coordinates and camera information on the screen.

This method retrieves the current camera and mouse positions, and renders text on the screen showing the mouse game location, camera-origin game location, mouse panel position, camera-origin panel position, camera zoom level, and camera rotation.

showGridLines

public void showGridLines()

Renders grid lines on the screen based on the camera's position and zoom level.

This method calculates the starting positions for the grid lines based on the camera's offset and origin. It then uses OpenGL to draw yellow grid lines across the screen and blue diagonal lines forming a square.