RenderSystem.cpp

#include "RenderSystem.h"
#include <GLFW/glfw3.h>

RenderSystem::RenderSystem(int width, int height) {
    projection = glm::ortho(0.0f, static_cast<float>(width), static_cast<float>(height), 0.0f, -1.0f, 1.0f);

    sr.Init();
}

double prevTime = glfwGetTime();

void RenderSystem::tick(World* world, float deltaTime) 
{
    t += glfwGetTime() - prevTime;
    prevTime = glfwGetTime();
    
    sr.SetTime(t);
    
    world->each<Sprite>([&](Entity* ent, ComponentHandle<Sprite> sprite) {

        //cout << "render" << endl;

        ComponentHandle<Transform> transform = ent->get<Transform>();

        Texture texture = textureManager.GetTexture(sprite->filepath);

        if (sprite->visible) {

            if (sprite->autoSize) {
                sr.DrawSprite(texture, projection, transform->position, texture.GetSize(), transform->rotation, sprite->color, sprite->shaderName);
            }
            else {
                sr.DrawSprite(texture, projection, transform->position, sprite->size, transform->rotation, sprite->color, sprite->shaderName);
            }
        }

    });
}