Program Listing for File renderSystem.cpp

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#include "renderSystem.h"
#include "cameraComponent.h"
#include "transformComponent.h"
#include "meshComponent.h"
#include "textureComponent.h"

void prism::scene::RenderSystem::update()
{
    if (renderer->isRenderingActive()) {
        renderer->beginFrame();

        auto cameras = scene->getEntitiesWithAll<TransformComponent, CameraComponent>();
        for (auto camera : cameras) {
            CameraComponent* cameraComponent = scene->getComponent<CameraComponent>(camera);
            if (cameraComponent->isActive) {
                TransformComponent* transformComponent = scene->getComponent<TransformComponent>(camera);
                renderer->updateCamera(transformComponent, cameraComponent);
            }
        }
        uint32_t i = 0;
        auto forRenderingEntites = scene->getEntitiesWithAll<TransformComponent, MeshComponent>();
        for (auto entity : forRenderingEntites) {
            renderer->updateObjectTransform(scene->getComponent<TransformComponent>(entity), i++);
        }

        renderer->beginRender();

        renderer->bindDefault();
        i = 0;
        for (auto entity : forRenderingEntites) {
            renderer->bindTransform(i++);
            if (scene->getComponent<TextureComponent>(entity) == nullptr) {
                renderer->pushTextureId(INVALID_TEXTURE);
            }
            else {
                renderer->pushTextureId(scene->getComponent<TextureComponent>(entity)->texture);
            }
            renderer->drawMesh(scene->getComponent<MeshComponent>(entity)->mesh);
        }


        renderer->endRender();
        renderer->endFrame();

     }
}