ACBob's ZimZam

css-test

This is a page to test the styling of my website, and the various things styled.

Tested here:

Table Test Test Test
Test 1 Test Test
Test 2 Test Test
Test 3 Test Test 
This is a code block!
It doesn't contain any code.
But keep reading, and you'll see that I do infact have code in my code blocks.

Try C++ on for size (Meegreef raycasting, circa. Nov 27, 2021)!

#include "raycast.hpp"
#include "utility/vector.hpp"
#include "world/world.hpp"

CPointedThing::CPointedThing() : m_pBlock( nullptr ), m_vPosition( 0 ) {}

CVoxRaycast::CVoxRaycast() : m_vPosition( 0 ), m_vDirection( 0 ), m_fLength( 0 ) {}

CPointedThing CVoxRaycast::Cast( CWorld *pChunkMan, bool bUseCollision )
{
    Vector3f vRay = m_vPosition;
    Vector3f vOtherRay; // for figuring out normal

    const float step = 0.01;
    float i          = 0;

    block_t *pBlock = nullptr;
    while ( i <= m_fLength )
    {
        vOtherRay = vRay;
        vRay      = m_vPosition + m_vDirection * i;
        i += step;
        pBlock = pChunkMan->BlockAtWorldPos( vRay );

        if ( bUseCollision )
        {
            if ( pChunkMan->TestSelectPointCollision( vRay ) )
                break;
        }
        else
        {
            if ( pBlock != nullptr && pBlock->GetType() != AIR )
                break;
        }
    }

    // if we reached the end of the ray, we didn't hit anything
    if ( i >= m_fLength )
    {
        pBlock = nullptr;
        vRay   = m_vPosition + m_vDirection * m_fLength;
        i = m_fLength;
    }

    CPointedThing pointedThing;
    pointedThing.m_vPosition = Vector3f( ceil( vRay.x ), ceil( vRay.y ), ceil( vRay.z ) );
    pointedThing.m_pBlock    = pBlock;
    pointedThing.m_vNormal   = vOtherRay.Floor() - vRay.Floor();
    pointedThing.m_fDistance = i;
    return pointedThing;
}