}/* read_number */ /* * z_read, read a line of input and (in V5+) store the terminating key. * * zargs[0] = address of text buffer * zargs[1] = address of token buffer * zargs[2] = timeout in tenths of a second (optional) * zargs[3] = packed address of routine to be called on timeout * */ internal static void z_read() { zword[] buffer = new zword[General.INPUT_BUFFER_SIZE]; zword addr; zword key; zbyte max, size; zbyte c; int i; /* Supply default arguments */ if (Process.zargc < 3) { Process.zargs[2] = 0; } /* Get maximum input size */ addr = Process.zargs[0]; FastMem.LOW_BYTE(addr, out max); if (main.h_version <= ZMachine.V4) { max--; } if (max >= General.INPUT_BUFFER_SIZE) { max = (zbyte)(General.INPUT_BUFFER_SIZE - 1); } /* Get initial input size */ if (main.h_version >= ZMachine.V5) { addr++; FastMem.LOW_BYTE(addr, out size); } else { size = 0; } /* Copy initial input to local buffer */ for (i = 0; i < size; i++) { addr++; FastMem.LOW_BYTE(addr, out c); buffer[i] = Text.translate_from_zscii(c); } buffer[i] = 0; /* Draw status line for V1 to V3 games */ if (main.h_version <= ZMachine.V3) { Screen.z_show_status(); } /* Read input from current input stream */ key = Stream.stream_read_input( max, buffer, /* buffer and size */ Process.zargs[2], /* timeout value */ Process.zargs[3], /* timeout routine */ true, /* enable hot keys */ main.h_version == ZMachine.V6); /* no script in V6 */ if (key == CharCodes.ZC_BAD) { return; } /* Perform save_undo for V1 to V4 games */ if (main.h_version <= ZMachine.V4) { FastMem.save_undo(); } /* Copy local buffer back to dynamic memory */ for (i = 0; buffer[i] != 0; i++) { if (key == CharCodes.ZC_RETURN) { buffer[i] = Text.unicode_tolower(buffer[i]); } FastMem.storeb((zword)(Process.zargs[0] + ((main.h_version <= ZMachine.V4) ? 1 : 2) + i), Text.translate_to_zscii(buffer[i])); } /* Add null character (V1-V4) or write input length into 2nd byte */ if (main.h_version <= ZMachine.V4) { FastMem.storeb((zword)(Process.zargs[0] + 1 + i), 0); } else { FastMem.storeb((zword)(Process.zargs[0] + 1), (byte)i); } /* Tokenise line if a token buffer is present */ if (key == CharCodes.ZC_RETURN && Process.zargs[1] != 0) { Text.tokenise_line(Process.zargs[0], Process.zargs[1], 0, false); } /* Store key */ if (main.h_version >= ZMachine.V5) { Process.store(Text.translate_to_zscii(key)); } }/* z_read */