773 lines
16 KiB
C
773 lines
16 KiB
C
#include "griddleDefs.h"
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void
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executeInclude(
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char *filename)
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{
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fileList *newFile;
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if (announceIncludes) {
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fprintf(stderr, "->%s\n", filename);
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fflush(stderr);
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}
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newFile = typeAlloc(fileList);
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newFile->next = inputStack;
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newFile->saveName = currentFileName;
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newFile->saveLine = currentLineNumber;
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newFile->fyle = currentInput;
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inputStack = newFile;
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if ((currentInput = fopen(filename, "r")) == NULL) {
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error("unable to open include file '%s'\n", filename);
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exit(1);
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}
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currentFileName = filename;
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currentLineNumber = 1;
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free(filename);
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}
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value *evaluate(expression *expr);
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void
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executeAssignment(
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symbol *name,
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expression *expr)
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{
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if (name->type != NON_SYM && name->type != VARIABLE_SYM) {
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error("illegal assignment to '%s'\n", name->name);
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} else {
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if (name->type == VARIABLE_SYM)
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freeValue(name->def.value);
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name->type = VARIABLE_SYM;
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name->def.value = evaluate(expr);
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}
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}
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void
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fillByte(
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byte *buf,
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int offset,
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int value)
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{
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buf[offset] = value & 0xFF;
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}
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void
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fillWord(
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byte *buf,
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int offset,
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int value)
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{
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buf[offset ] = (value >> 8) & 0xFF;
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buf[offset + 1] = value & 0xFF;
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}
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void
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fillLong(
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byte *buf,
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int offset,
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long value)
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{
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buf[offset ] = (value >> 24) & 0xFF;
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buf[offset + 1] = (value >> 16) & 0xFF;
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buf[offset + 2] = (value >> 8) & 0xFF;
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buf[offset + 3] = value & 0xFF;
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}
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value *buildNumber(int val);
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value *
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nextValue(
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exprList **dataptr)
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{
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exprList *data;
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value *val;
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if (dataptr == NULL || *dataptr == NULL)
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return(buildNumber(0));
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data = *dataptr;
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val = evaluate(data->expr);
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*dataptr = data->nextExpr;
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return(val);
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}
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value *
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nextIntValue(
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exprList **dataptr)
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{
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value *val;
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val = nextValue(dataptr);
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if (!isInteger(val))
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val = buildNumber(0);
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return(val);
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}
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char *
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nextStringValue(
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exprList **dataptr)
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{
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value *val;
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char *result;
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if (dataptr == NULL || *dataptr == NULL)
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return(NULL);
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val = nextValue(dataptr);
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if (isString(val))
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result = (char *)(val->value);
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else
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result = NULL;
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freeValue(val);
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return(result);
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}
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int
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contNum(
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valueType vtype)
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{
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if (vtype == VAL_AVATAR) return (1);
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else if (vtype == VAL_OBJECT) return (2);
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else return (0);
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}
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void
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adjustValue(
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value *val)
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{
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if (indirFile != NULL && val->value < -1000)
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val->value -= globalIdAdjustment;
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}
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void
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fillField(
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byte *buf,
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exprList *data,
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field *aField,
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value *(*nextInt)(),
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char *(*nextString)(),
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value *(*nextBit)())
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{
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int i, j;
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int offset, bitOffset;
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int len;
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value *val;
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char *string;
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byte *bitString;
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int bitLength;
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int bufIndex;
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byte theBit;
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offset = aField->offset & 0x3FFF;
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if (indirFile != NULL && offset == IDENT_OFFSET)
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return;
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bitOffset = aField->offset >> 14;
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for (i=0; i<aField->dimension; ++i) {
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switch (aField->type) {
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Case FIELD_ENTITY:
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val = (*nextInt)(&data);
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adjustValue(val);
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fillLong(buf, offset + 6*i, val->value);
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fillWord(buf, offset + 6*i + 4, contNum(val->dataType));
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freeValue(val);
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Case FIELD_AVAID:
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val = (*nextInt)(&data);
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if (val->dataType != VAL_AVATAR && val->dataType !=
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VAL_INTEGER)
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error("illegal avatar id value\n");
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adjustValue(val);
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fillLong(buf, offset + 4*i, val->value);
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freeValue(val);
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Case FIELD_OBJID:
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val = (*nextInt)(&data);
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if (val->dataType != VAL_OBJECT && val->dataType !=
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VAL_INTEGER)
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error("illegal object id value\n");
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adjustValue(val);
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fillLong(buf, offset + 4*i, val->value);
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freeValue(val);
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Case FIELD_REGID:
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val = (*nextInt)(&data);
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if (val->dataType != VAL_REGION && val->dataType !=
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VAL_INTEGER)
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error("illegal region id value\n");
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adjustValue(val);
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fillLong(buf, offset + 4*i, val->value);
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freeValue(val);
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Case FIELD_BIN31:
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val = (*nextInt)(&data);
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fillLong(buf, offset + 4*i, val->value);
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freeValue(val);
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Case FIELD_FATWORD:
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val = (*nextInt)(&data);
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fillWord(buf, offset + 4*i, val->value & 0xFF);
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fillWord(buf, offset + 4*i + 2, (val->value >> 8) &
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0xFF);
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freeValue(val);
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Case FIELD_BIN15:
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val = (*nextInt)(&data);
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fillWord(buf, offset + 2*i, val->value);
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freeValue(val);
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Case FIELD_WORDS:
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string = (*nextString)(&data);
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if (string != NULL)
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for (; i<aField->dimension && string != NULL
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&& string[i] != '\0'; ++i)
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fillWord(buf, offset + i*2, string[i]);
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for (; i<aField->dimension; ++i)
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fillWord(buf, offset + i*2, ' ');
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free(string);
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Case FIELD_BYTE:
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val = (*nextInt)(&data);
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fillByte(buf, offset + i, val->value);
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freeValue(val);
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Case FIELD_CHARACTER:
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string = (*nextString)(&data);
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if (string != NULL)
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for (; i<aField->dimension && string != NULL
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&& string[i] != '\0'; ++i)
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fillByte(buf, offset + i, string[i]);
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for (; i<aField->dimension; ++i)
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fillByte(buf, offset + i, ' ');
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freeValue(string);
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Case FIELD_VARSTRING:
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string = (*nextString)(&data);
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if (string != NULL) {
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len = strlen(string);
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fillWord(buf, offset, len);
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for (; i<aField->dimension && string != NULL
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&& string[i] != '\0'; ++i)
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fillByte(buf, offset+2+i, string[i]);
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free(string);
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} else
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fillWord(buf, offset, 0);
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i = aField->dimension;
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Case FIELD_BIT:
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val = (*nextBit)(&data);
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if (isInteger(val)) {
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bufIndex = offset + ((i+bitOffset)>>3);
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theBit = 1 << (7 - ((i+bitOffset)&7));
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if (val->value & 1)
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buf[bufIndex] |= theBit;
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else
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buf[bufIndex] &= ~theBit;
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} else if (val->dataType == VAL_BITSTRING) {
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bitString = (byte *)val->value;
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bitLength = *bitString++;
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for (j=0; j < bitLength && i+j <
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aField->dimension; ++j) {
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bufIndex = offset + ((i+j+bitOffset)>>3);
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theBit = 1 << (7 - ((i+j+bitOffset)&7));
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if ((bitString[j>>3] >> (7-(j&7))) & 1)
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buf[bufIndex] |= theBit;
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else
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buf[bufIndex] &= ~theBit;
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}
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for (i+=bitLength; i<aField->dimension; ++i) {
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bufIndex = offset + ((i+bitOffset)>>3);
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theBit = 1 << (7 - ((i+bitOffset)&7));
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buf[bufIndex] &= ~theBit;
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}
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} else
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error("invalid data type for bit field\n");
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freeValue(val);
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}
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}
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if (data != NULL)
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error("too many initialization values\n");
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}
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void
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fillPrototype(
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byte *buf,
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fieldList *fields,
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int class)
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{
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while (fields != NULL) {
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fillField(buf, fields->field->initValues, fields->field,
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nextIntValue, nextStringValue, nextValue);
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fields = fields->nextField;
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}
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}
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void
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fillProperty(
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byte *buf,
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property *prop,
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fieldList *fields,
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int class)
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{
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while (fields != NULL) {
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if (fields->field->name == prop->fieldName) {
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fillField(buf, prop->data, fields->field,
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nextIntValue, nextStringValue, nextValue);
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return;
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} else {
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fields = fields->nextField;
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}
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}
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if (class > 1)
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fillProperty(buf, prop, classDefs[0]->fields, -1);
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else
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error("no match for field '%s'\n", prop->fieldName->name);
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}
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void
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fillData(buf, fields, properties, class)
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byte *buf;
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fieldList *fields;
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propertyList *properties;
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int class;
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{
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while (properties != NULL) {
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fillProperty(buf, properties->property, fields, class);
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properties = properties->nextProp;
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}
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}
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object *
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initObject(class, globalId)
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int class;
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int globalId;
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{
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object *result;
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objectList *buildObjectList();
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int i;
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if (indirectPass == 1) {
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if (class == CLASS_REGION)
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indirTable[indirRegion].region = globalId;
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result = NULL;
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} else {
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result = typeAlloc(object);
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result->class = class;
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result->stateVector = byteAlloc(classDefs[class+1]->size);
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for (i=0; i<classDefs[class+1]->size; ++i)
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result->stateVector[i] = classDefs[class+1]->prototype[i];
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if (class > 1)
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fillLong(result->stateVector, 4, class);
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fillLong(result->stateVector, 0, globalId);
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}
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return(result);
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}
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object *
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generateObject(class, tail)
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int class;
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objectTail *tail;
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{
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value *val;
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int globalId;
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object *result;
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if (tail->idExpr == NULL || indirFile != NULL) {
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globalId = -globalIdCounter++;
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} else {
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val = evaluate(tail->idExpr);
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if (!isInteger(val) || val->value <= 0) {
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error("illegal global id number\n");
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return(NULL);
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}
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globalId = val->value;
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freeValue(val);
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}
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result = initObject(class, globalId);
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if (indirectPass != 1)
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fillData(result->stateVector, classDefs[class+1]->fields,
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tail->properties, class);
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return(result);
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}
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void
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outputRawObject(obj)
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object *obj;
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{
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int i;
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if (obj == NULL)
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return;
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fprintf(rawFile, "/%d ", obj->class);
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for (i=0; i<classDefs[obj->class+1]->size; ++i) {
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if ((i & 31) == 31)
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fprintf(rawFile, "\\\n");
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fprintf(rawFile, "%02x", obj->stateVector[i]);
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}
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fprintf(rawFile, "\n");
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}
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int
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fieldCode(ftype)
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fieldType ftype;
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{
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if (ftype == FIELD_REGID)
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return(0);
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else if (ftype == FIELD_AVAID)
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return(1);
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else if (ftype == FIELD_OBJID)
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return(2);
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else
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return(-1);
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}
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int
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relativeId(id, contnum)
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int id;
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int contnum;
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{
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char scratchName[15];
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symbol *scratchSymbol;
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symbol *lookupSymbol();
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sprintf(scratchName, "%c_%d", contCode(contnum), id);
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scratchSymbol = lookupSymbol(scratchName);
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if (scratchSymbol->type != VARIABLE_SYM) {
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if (id < -1000 || 0 < id) {
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error("undefined %c %d\n", contCode(contnum), id);
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return(0);
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} else
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return(id);
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} else
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return(scratchSymbol->def.value->value);
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}
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void
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shiftField(aField, buf, adjust)
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field *aField;
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byte *buf;
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int adjust;
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{
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int i;
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int offset;
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int val;
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offset = aField->offset & 0x3FFF;
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for (i=0; i<aField->dimension; ++i) {
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if (aField->type == FIELD_ENTITY) {
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val = getLong(buf, offset + 6*i);
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if (val < -1000)
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fillLong(buf, offset + 6*i, val - adjust);
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else if (assignRelativeIds)
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fillLong(buf, offset + 6*i,
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relativeId(val, getWord(buf, offset +
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6*i + 4)));
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} else if (aField->type == FIELD_AVAID || aField->type ==
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FIELD_OBJID || aField->type == FIELD_REGID) {
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val = getLong(buf, offset + 4*i);
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if (val < -1000)
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fillLong(buf, offset + 4*i, val - adjust);
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else if (assignRelativeIds)
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fillLong(buf, offset + 4*i, relativeId(val,
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fieldCode(aField->type)));
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}
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}
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}
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void
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shiftRelativeGlobalIds(obj, adjust)
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object *obj;
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int adjust;
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{
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fieldList *fields;
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if (obj->class > 1) {
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fields = classDefs[0]->fields;
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while (fields != NULL) {
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shiftField(fields->field, obj->stateVector, adjust);
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fields = fields->nextField;
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}
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}
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fields = classDefs[obj->class+1]->fields;
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while (fields != NULL) {
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shiftField(fields->field, obj->stateVector, adjust);
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fields = fields->nextField;
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}
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}
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void
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generateScratchId(class, id, relativeId)
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int class;
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int id;
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int relativeId;
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{
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char scratchName[15];
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symbol *scratchSymbol;
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valueType vtype;
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value *buildValue();
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symbol *lookupSymbol();
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sprintf(scratchName, "%c_%d", contCode(class), id);
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scratchSymbol = lookupSymbol(scratchName);
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scratchSymbol->type = VARIABLE_SYM;
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if (class == 0)
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vtype = VAL_REGION;
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else if (class == 1)
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vtype = VAL_AVATAR;
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else
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vtype = VAL_OBJECT;
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scratchSymbol->def.value = buildValue(vtype, relativeId);
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}
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void
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executeRawline(
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object *obj)
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{
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if (assignRelativeIds)
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generateScratchId(obj->class, getLong(obj->stateVector, 0),
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-1001 - objectCount);
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shiftRelativeGlobalIds(obj, objectCount - rawCount++);
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if (objectCount < MAXNOID)
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noidArray[objectCount++] = obj;
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}
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void
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freeObjectTail(tail)
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objectTail *tail;
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{
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propertyList *properties;
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propertyList *oldProperties;
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exprList *expr;
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exprList *oldExpr;
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properties = tail->properties;
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while (properties != NULL) {
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expr = properties->property->data;
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while (expr != NULL) {
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if (indirectPass == 1)
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freeExpr(expr->expr);
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oldExpr = expr;
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expr = expr->nextExpr;
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free(oldExpr);
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}
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free(properties->property);
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oldProperties = properties;
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properties = properties->nextProp;
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free(oldProperties);
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}
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free(tail);
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}
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void
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executeUse(className, tagName, tail)
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symbol *className;
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symbol *tagName;
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objectTail *tail;
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{
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object *ultimate;
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objectStub *buildObjectStub();
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if (className->type != CLASS_SYM)
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error("non-class identifier %s used for class name\n",
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className->name);
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else {
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ultimate = generateObject(className->def.class, tail);
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freeObjectTail(tail);
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if (ultimate != NULL && tagName != NULL) {
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if (ultimate->class == 0)
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globalIdAdjustment = 0;
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if (tagName->type == OBJECT_SYM)
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free(tagName->def.object);
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else if(tagName->type == VARIABLE_SYM)
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|
freeValue(tagName->def.value);
|
|
tagName->type = OBJECT_SYM;
|
|
tagName->def.object = buildObjectStub(ultimate);
|
|
}
|
|
/*#ifndef FRED*/
|
|
if (ultimate != NULL) {
|
|
if (ultimate->class == CLASS_DOOR ||
|
|
ultimate->class == CLASS_BUILDING)
|
|
sortObjects = TRUE;
|
|
else if (ultimate->class == CLASS_REGION)
|
|
flushNoidArray();
|
|
if (objectCount < MAXNOID && indirectPass != 1)
|
|
noidArray[objectCount++] = ultimate;
|
|
else if (indirectPass != 0)
|
|
error("more than 256 objects in region\n");
|
|
}
|
|
/*#endif*/
|
|
}
|
|
}
|
|
|
|
cmpObjects(ob1, ob2)
|
|
object **ob1;
|
|
object **ob2;
|
|
{
|
|
int class1, class2;
|
|
|
|
class1 = (*ob1)->class;
|
|
class2 = (*ob2)->class;
|
|
if (class1 == CLASS_REGION)
|
|
return(-1);
|
|
else if (class2 == CLASS_REGION)
|
|
return(1);
|
|
else if (class1 != CLASS_DOOR && class1 != CLASS_BUILDING &&
|
|
class2 != CLASS_DOOR && class2 != CLASS_BUILDING)
|
|
return(0);
|
|
else if (class1 != CLASS_DOOR && class1 != CLASS_BUILDING)
|
|
return(1);
|
|
else if (class2 != CLASS_DOOR && class2 != CLASS_BUILDING)
|
|
return(-1);
|
|
return(getLong((*ob1)->stateVector, X_OFFSET_OBJ) -
|
|
getLong((*ob2)->stateVector, X_OFFSET_OBJ));
|
|
}
|
|
|
|
flushNoidArray()
|
|
{
|
|
int i;
|
|
|
|
#ifndef FRED
|
|
if (indirectPass == 2) {
|
|
for (i=0; i<objectCount; ++i)
|
|
altNoidArray[i] = noidArray[i];
|
|
if (sortObjects)
|
|
qsort(altNoidArray, objectCount, sizeof(object *),
|
|
cmpObjects);
|
|
for (i=0; i<objectCount; ++i)
|
|
replaceIndirectArgs(altNoidArray[i], i);
|
|
}
|
|
sortObjects = FALSE;
|
|
#endif
|
|
for (i=0; i<objectCount; ++i) {
|
|
#ifndef FRED
|
|
if (griFile != NULL && indirectPass != 1)
|
|
dumpObject(noidArray[i]);
|
|
if (rawFile != NULL && indirectPass != 1)
|
|
outputRawObject(noidArray[i]);
|
|
#endif
|
|
freeObject(noidArray[i]);
|
|
}
|
|
objectCount = 0;
|
|
}
|
|
|
|
freeObject(obj)
|
|
object *obj;
|
|
{
|
|
free(obj->stateVector);
|
|
free(obj);
|
|
}
|
|
|
|
freeValue(val)
|
|
value *val;
|
|
{
|
|
if (val != NULL) {
|
|
if (val->dataType == VAL_STRING ||
|
|
val->dataType == VAL_BITSTRING)
|
|
free(val->value);
|
|
free(val);
|
|
}
|
|
}
|
|
|
|
void
|
|
executeDefine(classExpr, name, fields)
|
|
expression *classExpr;
|
|
char *name;
|
|
fieldList *fields;
|
|
{
|
|
value *val;
|
|
int class;
|
|
symbol *symb;
|
|
symbol *lookupSymbol();
|
|
int size;
|
|
|
|
val = evaluate(classExpr);
|
|
class = val->value;
|
|
if (!isInteger(val))
|
|
error("non-integer value used for class number\n");
|
|
else if (class < -1 || MAXCLASS <= class)
|
|
error("class value %d out of range\n", class);
|
|
else if (classDefs[class+1] != NULL)
|
|
error("class %d already defined\n", class);
|
|
else {
|
|
translate(name, ' ', '_');
|
|
symb = lookupSymbol(name);
|
|
symb->type = CLASS_SYM;
|
|
symb->def.class = class;
|
|
classDefs[class+1] = typeAlloc(classDescriptor);
|
|
size = computeFieldOffsets(fields, class);
|
|
classDefs[class+1]->size = size;
|
|
classDefs[class+1]->fields = fields;
|
|
classDefs[class+1]->className = symb;
|
|
classDefs[class+1]->prototype = (byte *)malloc(size);
|
|
fillPrototype(classDefs[class+1]->prototype, fields, class);
|
|
}
|
|
freeValue(val);
|
|
free(name);
|
|
}
|
|
|
|
int
|
|
computeFieldOffsets(fields, class)
|
|
fieldList *fields;
|
|
int class;
|
|
{
|
|
int offset;
|
|
int bitOffset;
|
|
field *aField;
|
|
|
|
if (class > 1)
|
|
offset = objectBase;
|
|
else
|
|
offset = 0;
|
|
if (fields == NULL)
|
|
return(offset);
|
|
|
|
bitOffset = 0;
|
|
while (fields != NULL) {
|
|
aField = fields->field;
|
|
aField->offset = offset + (bitOffset << 14);
|
|
|
|
if (class == -1)
|
|
objectBase = offset;
|
|
|
|
switch (aField->type) {
|
|
Case FIELD_ENTITY:
|
|
offset += 6 * aField->dimension;
|
|
|
|
Case FIELD_AVAID:
|
|
case FIELD_BIN31:
|
|
case FIELD_OBJID:
|
|
case FIELD_REGID:
|
|
case FIELD_FATWORD:
|
|
offset += 4 * aField->dimension;
|
|
|
|
Case FIELD_BIN15:
|
|
case FIELD_WORDS:
|
|
offset += 2 * aField->dimension;
|
|
|
|
Case FIELD_BYTE:
|
|
case FIELD_CHARACTER:
|
|
offset += aField->dimension;
|
|
|
|
Case FIELD_VARSTRING:
|
|
offset += aField->dimension + 2;
|
|
|
|
Case FIELD_BIT:
|
|
bitOffset += aField->dimension;
|
|
if (bitOffset > 15) {
|
|
offset += 2 * (bitOffset >> 4);
|
|
bitOffset -= (bitOffset & ~0xF);
|
|
}
|
|
}
|
|
|
|
if (aField->type != FIELD_BIT && bitOffset > 0) {
|
|
bitOffset = 0;
|
|
offset += 2;
|
|
} else if (aField->type != FIELD_CHARACTER &&
|
|
aField->type != FIELD_BYTE && (offset & 1) == 1)
|
|
++offset;
|
|
|
|
fields = fields->nextField;
|
|
}
|
|
if (bitOffset > 0)
|
|
offset += 2;
|
|
return(offset);
|
|
}
|