Camera2D

Class

Source: Camera2D.h

Description

2D camera for viewport management and smooth scrolling.

Manages the viewable area of a scene, providing bounds clamping and smooth follow-target behavior. The camera sits at a fixed position until instructed to follow a target; its X/Y coordinates are negated to become the Renderer's X/Y offset (so content scrolls "under" the camera).

Bounds are enforced per-axis; if no bounds are set the camera is unclamped on that axis. A target X or Y position outside bounds is clamped before the camera moves.

Camera2D does not own a Renderer. Call apply(renderer) to push the camera transform after updating.

TIP

Camera2D does not own a Renderer. Call apply(renderer) to push the camera transform after updating.

Methods

void setBounds(pixelroot32::math::Scalar minX, pixelroot32::math::Scalar maxX)

void setVerticalBounds(pixelroot32::math::Scalar minY, pixelroot32::math::Scalar maxY)

void setPosition(pixelroot32::math::Vector2 position)

void followTarget(pixelroot32::math::Scalar targetX)

void followTarget(pixelroot32::math::Vector2 target)

pixelroot32::math::Scalar getX() const

pixelroot32::math::Scalar getY() const

pixelroot32::math::Vector2 getPosition() const

void apply(Renderer& renderer) const

Description:

Pushes the camera transform into the renderer (sets display offset).

void apply(Renderer& renderer, const pixelroot32::math::Vector2& effectOffset) const

Description:

Pushes camera transform + effect offset into the renderer.

Parameters:

• renderer: The renderer to push the transform into.
• effectOffset: Additional offset from CameraEffectsSystem (added to camera position before negation).

void setViewportSize(int width, int height)