187 lines
3.8 KiB
C++
187 lines
3.8 KiB
C++
/*=========================================================================
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function.cpp
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Author: PKG
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Created:
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Project: Spongebob
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Purpose:
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Copyright (c) 2000 Climax Development Ltd
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===========================================================================*/
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/*----------------------------------------------------------------------
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Includes
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-------- */
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#include "function.h"
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#ifndef _LEXER_H
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#include "lexer.h"
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#endif
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#ifndef _PARSER_H
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#include "parser.h"
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#endif
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/* Std Lib
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------- */
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#include <stdio.h>
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#include <string.h>
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/* Data
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---- */
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/*----------------------------------------------------------------------
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Tyepdefs && Defines
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------------------- */
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/*----------------------------------------------------------------------
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Structure defintions
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-------------------- */
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struct FunctionDef
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{
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char *m_name;
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int m_argCount;
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};
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/*----------------------------------------------------------------------
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Function Prototypes
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------------------- */
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/*----------------------------------------------------------------------
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Vars
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---- */
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static FunctionDef s_functionNames[]=
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{
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{ "setCharacterAnimation", 2 }, // characterId,animationId
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{ "setText", 2 }, // characterId,textId
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{ "giveItem", 1 }, // itemId
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{ "gotItem", 1 }, // itemId
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{ "setResponseOptions", 1 }, // optionsId
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{ "getResponse", 0 }, //
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{ "drawSprite", 4 }, // frame,x,y,ot
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{ "getFrameTime", 0 }, //
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};
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static int s_functionCount=sizeof(s_functionNames)/sizeof(FunctionDef);
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extern mylexer s_lexer;
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extern myparser s_parser;
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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extern int lookupFunctionName(char *_name)
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{
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int i;
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FunctionDef *fp;
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fp=s_functionNames;
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for(i=0;i<s_functionCount;i++)
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{
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if(strcmp(fp->m_name,_name)==0)
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{
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return i;
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}
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fp++;
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}
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printf("Unknown function name _%s\n",_name);
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s_lexer.error();
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return -1;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns: Argument count for the requestion function
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---------------------------------------------------------------------- */
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extern int getFunctionArgCount(int _functionNumber)
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{
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return s_functionNames[_functionNumber].m_argCount;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns: A treenode that contains all of the functions arguments
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---------------------------------------------------------------------- */
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extern CTreeNode *getFunctionArgs(int _functionNumber)
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{
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int argCount,i;
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int tokenType;
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argCount=s_functionNames[_functionNumber].m_argCount;
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if(argCount)
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{
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CTreeNode *base;
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base=NULL;
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for(i=0;i<argCount;i++)
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{
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tokenType=s_parser.yygettoken();
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switch(tokenType)
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{
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case VARIABLE:
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{
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int var;
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var=*((int*)s_parser.yylvalptr);
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if(base)
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base=new CTreeNode(STMT_LIST,base,new CTreeNode(VARIABLE_EXPR,(int)var));
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else
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base=new CTreeNode(STMT_LIST,new CTreeNode(VARIABLE_EXPR,(int)var));
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break;
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}
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case VALUE:
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{
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signed short value;
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value=*((signed short*)s_parser.yylvalptr);
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if(base)
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base=new CTreeNode(STMT_LIST,base,new CTreeNode(VALUE_EXPR,(int)value));
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else
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base=new CTreeNode(STMT_LIST,new CTreeNode(VALUE_EXPR,(int)value));
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break;
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}
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default:
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printf("UNEXPECTED TOKEN '%s' FOR ARGUMENT %d\n",s_lexer.yytext,i+1);
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s_lexer.error();
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break;
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}
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if(i<argCount-1)
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{
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if(s_parser.yygettoken()!=COMMA)
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{
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printf("EXPETCING ',' BUT FOUND '%s'\n",s_lexer.yytext);
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s_lexer.error();
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break;
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}
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}
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}
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return base;
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}
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return new CTreeNode(EMPTY_STMT);
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}
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/*===========================================================================
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end */
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