#include <GL/glew.h>

#include "wrapper/Attributes.h"

Attributes& Attributes::addFloat(int count) {
    attributes.add({count, sizeof (float), GL_FLOAT, false});
    return *this;
}

Attributes& Attributes::addColor4() {
    attributes.add({4, sizeof (unsigned char), GL_UNSIGNED_BYTE, true});
    return *this;
}

Attributes& Attributes::addSpacer(int count, int size) {
    attributes.add({count, size, -1, false});
    return *this;
}

void Attributes::set() const {
    int size = 0;
    for(const Attribute& a : attributes) {
        size += a.count * a.size;
    }
    int index = 0;
    int offset = 0;
    for(const Attribute& a : attributes) {
        if(a.type != -1) {
            glVertexAttribPointer(index, a.count, a.type, a.normalized, size, static_cast<char*> (0) + offset);
            glEnableVertexAttribArray(index);
        }
        offset += a.count * a.size;
        index++;
    }
}