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Aminet 22
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Aminet 22 (1997)(GTI - Schatztruhe)[!][Dec 1997].iso
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Aminet
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util
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BeyondTheDark.lha
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BeyondTheDark
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Developer
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Qix
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Qix.c
< prev
Wrap
C/C++ Source or Header
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1995-04-05
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10KB
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368 lines
/* Qix Library */
#include <exec/memory.h>
#include <exec/execbase.h>
#include <libraries/iffparse.h>
#include <dos/dosextens.h>
#include <utility/tagitem.h>
#include <graphics/gfxbase.h>
#include <intuition/intuitionbase.h>
#include <clib/macros.h>
#define __USE_SYSBASE 42
#include <proto/dos.h>
#include <proto/exec.h>
#include <proto/graphics.h>
#include <proto/intuition.h>
#include <proto/utility.h>
#include <math.h>
#include <BTD.h>
struct IntuitionBase *IntuitionBase;
struct GfxBase *GfxBase;
struct Library *UtilityBase;
/* #define DEBUG YES */
#ifdef DEBUG
void KPrintF(char *,...);
#define DEBUG_PRINTF(a,b) KPrintF(a,b);
#define DEBUG_PRINT(a) KPrintF(a)
#else
#define DEBUG_PRINTF(a,b)
#define DEBUG_PRINT(a)
#endif
#define QTAG(o) (BTD_Client+(o))
#define QP_Seconds QTAG(0)
#define QP_Lines QTAG(1)
#define QP_Colors QTAG(2)
#define MAX_SECONDS 360L /* seconds until a new graphic is plotted */
#define MAX_LINES 255L
#define DEF_SECONDS 60L
#define DEF_LINES 10L
#define DEF_COLORS 8L
#define MAX_COLORS 256L
#define BORDER 5L
struct BTDInteger QixIntParams[] =
{
QP_Seconds,"Patternchange",BTDPT_INTEGER,DEF_SECONDS,1L,MAX_SECONDS,TRUE,
QP_Lines,"Lines",BTDPT_INTEGER,DEF_LINES,4L,MAX_LINES,TRUE,
QP_Colors,"Colors",BTDPT_INTEGER,DEF_COLORS,4L,MAX_COLORS,TRUE
};
struct BTDNode *QixParams[] =
{
&QixIntParams[0].BI_Node,
&QixIntParams[1].BI_Node,
&QixIntParams[2].BI_Node,NULL
};
struct BTDInfo QixInfo =
{
BTDI_Revision,MAKE_ID('Q','I','X',' '),
"Qix Line Blanker","One of those lonely standard modules","Markus Illenseer 1994",
QixParams
};
char MyBlankerName[] = "qix.btd";
char MyBlankerID[] = "Qix Line Blanker V" VERSION "." REVISION " for BTD";
LONG MyBlankerLibInit(void)
{
if (GfxBase=(struct GfxBase *)OpenLibrary("graphics.library",37L))
{
if (IntuitionBase=(struct IntuitionBase *)OpenLibrary("intuition.library",37L))
{
if (UtilityBase=OpenLibrary("utility.library",37L)) return TRUE;
CloseLibrary (&IntuitionBase->LibNode);
}
CloseLibrary (&GfxBase->LibNode);
}
return FALSE;
}
void MyBlankerLibFree(void)
{
CloseLibrary (UtilityBase);
CloseLibrary (&IntuitionBase->LibNode);
CloseLibrary (&GfxBase->LibNode);
}
#define check_bounds(qp, val, del, min, max) \
{ \
if ((val) <= min) { \
*(del) = (Random((qp),(qp)->qp_delta)) +1 + (qp)->qp_offset; \
} else if ((val) >= (max)) { \
*(del) = -(Random((qp),(qp)->qp_delta))+1 - (qp)->qp_offset; \
} \
} \
typedef struct {
LONG x,y;
} point;
struct QixStruct
{
struct BTDDrawInfo *BTDDrawInfo;
LONG qp_Seconds;
LONG qp_Time;
LONG qp_Left; /* Left Offset of our Rect */
LONG qp_Top; /* Top Offset of our Rect */
LONG qp_Width; /* Width of our Rect */
LONG qp_Height; /* Height of our Rect */
LONG qp_pix;
LONG qp_first;
LONG qp_last;
LONG qp_dx1;
LONG qp_dy1;
LONG qp_dx2;
LONG qp_dy2;
LONG qp_x1;
LONG qp_y1;
LONG qp_x2;
LONG qp_y2;
LONG qp_offset;
LONG qp_delta;
LONG qp_nlines;
LONG qp_ncolors;
point *qp_lineq;
LONG hs_RandN,hs_RandF,hs_RandI;
};
struct BTDInfo *QueryMyBlanker(void)
{
return &QixInfo;
}
void __regargs InitRandom(struct QixStruct *QP,ULONG Instance)
{
ULONG Time[2];
CurrentTime (&Time[0],&Time[1]);
QP->hs_RandN=(LONG)Time[0];
if (Time[1]<1024L) Time[1]|=1;
else Time[1]>>=10;
Time[1]^=Instance;
QP->hs_RandF=4*Time[1]+1;
QP->hs_RandI=2*Time[1]+1;
}
WORD __regargs Random(struct QixStruct *QP,WORD Max)
{
QP->hs_RandN=QP->hs_RandF*QP->hs_RandN+QP->hs_RandI;
if (QP->hs_RandN<0L) QP->hs_RandN=-QP->hs_RandN;
return (WORD)(QP->hs_RandN%Max);
}
#define FindTagData(l,t,d) GetTagData((t),(d),(l))
/* rainbow colors */
#define NUM_RAINBOW_COLORS 6
UBYTE RBRed[NUM_RAINBOW_COLORS+1] = {0xFF,0xFF,0x00,0x00,0x00,0xFF,0xFF};
UBYTE RBGreen[NUM_RAINBOW_COLORS+1] = {0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00};
UBYTE RBBlue[NUM_RAINBOW_COLORS+1] = {0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00};
struct QixStruct *InitMyBlanker(struct TagItem *TagList)
{
LONG Seconds,Lines,Colors;
struct QixStruct *QP;
struct BTDDrawInfo *BTDDrawInfo;
ULONG *Error,Dummy,Index,Instance;
if ((BTDDrawInfo=(struct BTDDrawInfo *)
FindTagData(TagList,BTD_DrawInfo,NULL))==NULL) return NULL;
Error=(LONG *)FindTagData(TagList,BTD_Error,(ULONG)&Dummy);
if ((QP=AllocVec(sizeof(struct QixStruct),MEMF_PUBLIC|MEMF_CLEAR))==NULL)
{
*Error=BTDERR_Memory;
return NULL;
}
Lines=FindTagData(TagList,QP_Lines,DEF_LINES);
Seconds=FindTagData(TagList,QP_Seconds,DEF_SECONDS);
Colors=FindTagData(TagList,QP_Colors,DEF_COLORS);
Instance=FindTagData(TagList,BTD_Instance,0L);
if (!QP->qp_lineq)
{
if ((QP->qp_lineq=(point *)AllocVec((Lines%2==0?Lines:Lines+1)*sizeof(point),MEMF_PUBLIC|MEMF_CLEAR))==NULL)
{
*Error=BTDERR_Memory;
return NULL;
}
}
InitRandom(QP,Instance);
QP->BTDDrawInfo=BTDDrawInfo;
QP->qp_Left=QP->BTDDrawInfo->BDI_Left;
QP->qp_Top=QP->BTDDrawInfo->BDI_Top;
QP->qp_Width=QP->BTDDrawInfo->BDI_Width;
QP->qp_Height=QP->BTDDrawInfo->BDI_Height;
QP->qp_nlines=(Lines%2==0?Lines:Lines+1);
QP->qp_ncolors=Colors;
QP->qp_Seconds= Seconds;
QP->qp_delta=16;
QP->qp_offset = (LONG)(QP->qp_delta / 3);
QP->qp_last = 0;
QP->qp_pix = Random(QP,Colors);
QP->qp_x1 = Random(QP,QP->qp_Width)+1;
QP->qp_y1 = Random(QP,QP->qp_Height)+1;
QP->qp_x2 = Random(QP,QP->qp_Width)+1;
QP->qp_y2 = Random(QP,QP->qp_Height)+1;
QP->qp_dx1 = Random(QP,QP->qp_delta) + QP->qp_offset;
QP->qp_dy1 = Random(QP,QP->qp_delta) + QP->qp_offset;
QP->qp_dx2 = Random(QP,QP->qp_delta) + QP->qp_offset;
QP->qp_dy2 = Random(QP,QP->qp_delta) + QP->qp_offset;
if (QP->qp_ncolors>NUM_RAINBOW_COLORS)
{
LONG ColNum,Col,RBCol;
UBYTE *Red,*Green,*Blue,*Changed;
Red=BTDDrawInfo->BDI_Red;
Green=BTDDrawInfo->BDI_Green;
Blue=BTDDrawInfo->BDI_Blue;
Changed=BTDDrawInfo->BDI_Changed;
ColNum=QP->qp_ncolors/NUM_RAINBOW_COLORS+1L;
Index=0L;
for (RBCol=0L; RBCol<NUM_RAINBOW_COLORS; RBCol++)
{
if (RBCol==(QP->qp_ncolors%NUM_RAINBOW_COLORS)) ColNum--;
for (Col=0L; Col<ColNum; Col++)
{
Red[BTDDrawInfo->BDI_Pens[Index]]=RBRed[RBCol]+((RBRed[RBCol+1]-RBRed[RBCol])*Col)/ColNum;
Green[BTDDrawInfo->BDI_Pens[Index]]=RBGreen[RBCol]+((RBGreen[RBCol+1]-RBGreen[RBCol])*Col)/ColNum;
Blue[BTDDrawInfo->BDI_Pens[Index]]=RBBlue[RBCol]+((RBBlue[RBCol+1]-RBBlue[RBCol])*Col)/ColNum;
Changed[BTDDrawInfo->BDI_Pens[Index++]]=TRUE;
}
}
}
else
for (Index=0L; Index<QP->qp_ncolors; Index++)
{
BTDDrawInfo->BDI_Red[BTDDrawInfo->BDI_Pens[Index]]=RBRed[Index];
BTDDrawInfo->BDI_Green[BTDDrawInfo->BDI_Pens[Index]]=RBGreen[Index];
BTDDrawInfo->BDI_Blue[BTDDrawInfo->BDI_Pens[Index]]=RBBlue[Index];
BTDDrawInfo->BDI_Changed[BTDDrawInfo->BDI_Pens[Index]]=TRUE;
}
DEBUG_PRINT("Qix: Init ready\n");
return QP;
}
void EndMyBlanker(struct QixStruct *QP)
{
DEBUG_PRINT("Qix: FreeMem\n");
FreeVec (QP->qp_lineq);
FreeVec (QP);
}
void AnimMyBlanker(struct QixStruct *QP)
{
ULONG Seconds,Micros;
struct BTDDrawInfo *BTDDrawInfo;
CurrentTime (&Seconds,&Micros);
if (Seconds>=QP->qp_Time)
{
QP->qp_Time=Seconds+QP->qp_Seconds;
QP->qp_dx1 = Random(QP,QP->qp_delta) + QP->qp_offset;
QP->qp_dy1 = Random(QP,QP->qp_delta) + QP->qp_offset;
QP->qp_dx2 = Random(QP,QP->qp_delta) + QP->qp_offset;
QP->qp_dy2 = Random(QP,QP->qp_delta) + QP->qp_offset;
}
QP->qp_first = (QP->qp_last + 2) % QP->qp_nlines;
if(QP->qp_first<0) QP->qp_first=0;
if(QP->qp_first>QP->qp_nlines) QP->qp_first=QP->qp_nlines;
QP->qp_x1 += QP->qp_dx1;
QP->qp_y1 += QP->qp_dy1;
QP->qp_x2 += QP->qp_dx2;
QP->qp_y2 += QP->qp_dy2;
check_bounds(QP, QP->qp_x1, &QP->qp_dx1, QP->qp_Left, QP->qp_Width+QP->qp_Left);
check_bounds(QP, QP->qp_y1, &QP->qp_dy1, QP->qp_Top, QP->qp_Height+QP->qp_Top);
check_bounds(QP, QP->qp_x2, &QP->qp_dx2, QP->qp_Left, QP->qp_Width+QP->qp_Left);
check_bounds(QP, QP->qp_y2, &QP->qp_dy2, QP->qp_Top, QP->qp_Height+QP->qp_Top);
if(QP->qp_x1>=QP->qp_Width+QP->qp_Left) QP->qp_x1=QP->qp_Width+QP->qp_Left-QP->qp_delta*2;
if(QP->qp_x1<=QP->qp_Left) QP->qp_x1=QP->qp_Left+QP->qp_delta*2;
if(QP->qp_x2>=QP->qp_Width+QP->qp_Left) QP->qp_x2=QP->qp_Width+QP->qp_Left-QP->qp_delta*2;
if(QP->qp_x2<=QP->qp_Left) QP->qp_x2=QP->qp_Left+QP->qp_delta*2;
if(QP->qp_y1>=QP->qp_Height+QP->qp_Top) QP->qp_y1=QP->qp_Height+QP->qp_Top-QP->qp_delta*2;
if(QP->qp_y1<=QP->qp_Top) QP->qp_y1=QP->qp_Top+QP->qp_delta*2;
if(QP->qp_y2>=QP->qp_Height+QP->qp_Top) QP->qp_y2=QP->qp_Height+QP->qp_Top-QP->qp_delta*2;
if(QP->qp_y2<=QP->qp_Top) QP->qp_y2=QP->qp_Top+QP->qp_delta*2;
BTDDrawInfo= QP->BTDDrawInfo;
SetAPen(BTDDrawInfo->BDI_RPort,BTD_BgPen);
Move(BTDDrawInfo->BDI_RPort,QP->qp_lineq[QP->qp_first].x, QP->qp_lineq[QP->qp_first].y);
Draw(BTDDrawInfo->BDI_RPort,QP->qp_lineq[QP->qp_first + 1].x, QP->qp_lineq[QP->qp_first + 1].y);
SetAPen(BTDDrawInfo->BDI_RPort,BTDDrawInfo->BDI_Pens[QP->qp_pix]);
if (QP->qp_pix++ > QP->qp_ncolors) QP->qp_pix = 0;
Move(BTDDrawInfo->BDI_RPort,QP->qp_x1,QP->qp_y1);
Draw(BTDDrawInfo->BDI_RPort,QP->qp_x2,QP->qp_y2);
QP->qp_lineq[QP->qp_last].x = QP->qp_x1;
QP->qp_lineq[QP->qp_last].y = QP->qp_y1;
QP->qp_last++;
if (QP->qp_last >= QP->qp_nlines) QP->qp_last = 0;
QP->qp_lineq[QP->qp_last].x = QP->qp_x2;
QP->qp_lineq[QP->qp_last].y = QP->qp_y2;
QP->qp_last++;
if (QP->qp_last >= QP->qp_nlines) QP->qp_last = 0;
}
ULONG PenCountMyBlanker(struct TagItem *TagList)
{
ULONG colors;
colors=FindTagData(TagList,QP_Colors,DEF_COLORS);
return colors;
}