Explosions and TNT block and entity

[xoft]

If you want to do it as an IF statement:

BLOCKTYPE BlockType = GetBlock(a_BlockX, a_BlockY, a_BlockZ);
if ((BlockType == E_BLOCK_WATER) || (BlockType == E_BLOCK_STATIONARY_WATER) || (BlockType == ...))

If you want to do it more intelligently, do a switch:

switch (GetBlock(a_BlockX, a_BlockY, a_BlockZ)
{
	case E_BLOCK_STATIONARY_WATER:
	case E_BLOCK_WATER:
	{
		// TNT in these blocks doesn't do environmental damage
		break;
	}

	default:
	{
		// Destroy the neighboring blocks:
		for (int y = 0; y < ExplosionSizeInt; y++) ...
	}
}