Techneck/code/source-c/default_terrain_generator.c

#include "world.h"

bool tc_generate_default_terrain_chunk(tc_worldgen_s *gen, tc_chunk_s *chunk)
{
    tc_block_s                  block;
    block.type_identifier           = 1 | TC_BLOCK_OPAQUE_BIT;
    block.position.x                = 0.0f;
    block.position.y                = 0.0f;
    block.position.z                = 0.0f;
    
    tc_block_s                  grass;
    grass.type_identifier           = 2 | TC_BLOCK_OPAQUE_BIT;
    
    if(chunk->position.y > 0) return true;
    
    uint32_t                    x_in_chunk              = 0;
    uint32_t                    y_in_chunk              = 0;
    uint32_t                    z_in_chunk              = 0;
    while(x_in_chunk < 32)
    {
        y_in_chunk                      = 0;
        while(y_in_chunk < 32)
        {
            z_in_chunk                      = 0;
            while(z_in_chunk < 32)
            {
                tc_set_block_in_chunk(chunk, x_in_chunk, y_in_chunk, z_in_chunk, block);
                ++z_in_chunk;
            }
            ++y_in_chunk;
        }
        ++x_in_chunk;
    }
    if(chunk->position.y == 0)
    {
        x_in_chunk          = 0;
        while(x_in_chunk < 32)
        {
            z_in_chunk                      = 0;
            while(z_in_chunk < 32)
            {
                tc_set_block_in_chunk(chunk, x_in_chunk, 31, z_in_chunk, grass);
                ++z_in_chunk;
            }
            ++x_in_chunk;
        }
    }
    
    return true;
}