Function circle

source/src/rendergl.cpp:275–289

}

void circle(GLuint tex, float x, float y, float r, float tx, float ty, float tr, int subdiv)
{
    glBindTexture(GL_TEXTURE_2D, tex);
    glBegin(GL_TRIANGLE_FAN);
    glTexCoord2f(tx, ty);
    glVertex2f(x, y);
    loopi(subdiv+1)
    {
        float c = cosf(PI2 * i / float(subdiv)), s = sinf(PI2 * i / float(subdiv));
        glTexCoord2f(tx + tr*c, ty + tr*s);
        glVertex2f(x + r*c, y + r*s);
    }
    glEnd();
    xtraverts += subdiv+2;
}

void dot(int x, int y, float z)
{