RenderSystem

Rendering system for drawing entities to canvas.

TCanvasCanvas type for rendering Renders all visible entities with RenderComponent to the target canvas. Handles z-ordering and shape rendering.

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Namespace: enjin2

Header: include/enjin2/ui/systems.hpp

Public Methods

RenderSystem(TCanvas *targetCanvas)

Constructor with target canvas.

targetCanvasCanvas to render to

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virtual void update(float dt) override

Update rendering.

dtTime since last update in seconds

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virtual int getPriority() const override const

Get system priority (rendering should run last)

Priority value

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Private Methods

void renderEntity(Entity entity)

Render individual entity.

entityEntity to render

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void renderShape(const PositionComponent &pos, const SizeComponent *size, const RenderComponent &render, const ShapeComponent &shape)

Render shape component.

posPosition component sizeSize component (may be null) renderRender component shapeShape component

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void renderRectangle(const PositionComponent &pos, const SizeComponent &size, const RenderComponent &render)

Render simple rectangle.

posPosition component sizeSize component renderRender component

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