vecs.cpp

#include "vecs.h"

RASTER::RASTER(const unsigned long *_rasterWidth,
               const unsigned long *_rasterHeight) {
  width = *_rasterWidth;
  height = *_rasterHeight;
  area = width * height;
  surface = new unsigned int[area];
  zBuffer = new std::vector<PIXEL *>[area];
}

void RASTER::AddToZBuffer(unsigned int coord, PIXEL *pixel) {
  (zBuffer + coord)->push_back(pixel);
}

void RASTER::ClearRaster(unsigned int col) {
  for (unsigned int i = 0; i < area; i++) {
    *(surface + i) = col;
  }
}

void RASTER::EvaluateZ(CAMERA *camera) {
  for (unsigned int i = 0; i < area; i++) {
    float tempZ = camera->GetFarPlane();
    unsigned int col = 0xFF000000;

    for (PIXEL *p : (*(zBuffer + i))) {
      if (p->z < tempZ) {
        col = p->col;
        tempZ = p->z;
      }
    }
    surface[i] = col;
  }
}

void RASTER::CleanZ() {
  for (unsigned int i = 0; i < area; i++) {
    for (PIXEL *p : (*(zBuffer + i))) {
      delete p;
    }
    (zBuffer + i)->clear();
  }
}

unsigned int *RASTER::GetSurface() { return surface; }

unsigned int RASTER::GetWidth() { return width; }

unsigned int RASTER::GetHeight() { return height; }

unsigned int RASTER::GetArea() { return area; }