gameplay.c

来自「bbs server linux平台下软件源码」· C语言 代码 · 共 174 行

#include"gamedefs.h"
#include"gamedraw.h"
#include"gameinit.h"
#include"gameplay.h"
#include"screens.h"

extern BoxPoint *GameTargetData;
extern int TargetPointNum;      //  Target Point Number
extern int BoxPointNum;         //  Target Point Number
extern int PadBaseX, PadBaseY;  //  Pad Base X, Y

extern BoxPoint WorkerPoint;    //  Worker Current Position

extern char *GamePad;           //  Game Pad Map
extern int PadWidth, PadHeight; //  Game Pad Width, Height

BoxPoint PadDiff[MaxDiff];
int PadDiffNum = 0;

Boolean addiff(int x, int y)
{
    if (PadDiffNum >= MaxDiff)
        return FALSE;
    PadDiff[PadDiffNum].x = x;
    PadDiff[PadDiffNum].y = y;
    PadDiffNum++;
    return TRUE;
}

void showdiff(void)
{
    int i;

    for (i = 0; i < PadDiffNum; i++)
        DrawCell(PadDiff[i].x, PadDiff[i].y);
    worker(WorkerPoint.x, WorkerPoint.y);
}

void cleardiff(void)
{
    PadDiffNum = 0;
}

void movebox(int x, int y, int xoff, int yoff)
{
    char *ptr, *target;

    ptr = GamePad + y * PadWidth + x;
    target = ptr + xoff + yoff * PadWidth;
    if (PadSpace != *target && PadTarget != *target)
        return;
    if (0 == (PadBox & *ptr))
        return;
    *target++ |= PadBox;
    *target |= PadBox;
    *ptr++ &= ~PadBox;
    *ptr &= ~PadBox;
}

/*Boolean workermove(Direction dir)*/
int workermove(int dir)
{
    Boolean b_rtn;
    char other, target;
    char *ptr;
    int x, y, xoff, yoff;

    b_rtn = 0;
    x = WorkerPoint.x;
    y = WorkerPoint.y;
    ptr = GamePad + y * PadWidth + x;
    switch (dir) {
    case East:
        xoff = 2;
        yoff = 0;
        break;                  //      2 space for each cell
    case West:
        xoff = -2;
        yoff = 0;
        break;
    case North:
        xoff = 0;
        yoff = -1;
        break;
    case South:
        xoff = 0;
        yoff = 1;
        break;
    default:
        return 0;               //      break;
    }
    target = *(ptr + xoff + yoff * PadWidth);
    other = *(ptr + ((xoff + yoff * PadWidth) << 1));
    if (PadSpace == target || PadTarget == target)
        b_rtn = 1;
    else if (PadBox & target) {
        if (PadSpace == other || PadTarget == other) {
            addiff(x + xoff * 2, y + yoff * 2);
            movebox(x + xoff, y + yoff, xoff, yoff);
            b_rtn = 2;
        } else
            b_rtn = 0;
    } else
        b_rtn = 0;
    if (b_rtn) {
        addiff(x, y);
        addiff(x + xoff, y + yoff);
        WorkerPoint.x = x + xoff;
        WorkerPoint.y = y + yoff;
    }
    return b_rtn;
}

void regretmove(dir)
{
    int x, y, xoff, yoff;
    int bmovebox = 0;

    x = WorkerPoint.x;
    y = WorkerPoint.y;
    if (dir > 8) {
        dir -= 8;
        bmovebox = 1;
    }
    switch (dir) {
    case East:
        xoff = 2;
        yoff = 0;
        break;                  //      2 space for each cell
    case West:
        xoff = -2;
        yoff = 0;
        break;
    case North:
        xoff = 0;
        yoff = -1;
        break;
    case South:
        xoff = 0;
        yoff = 1;
        break;
    default:
        return;                 //      break;
    }
    addiff(x + xoff, y + yoff);
    addiff(x, y);
    addiff(x - xoff, y - yoff);
    WorkerPoint.x = x - xoff;
    WorkerPoint.y = y - yoff;
    if (bmovebox)
        movebox(x + xoff, y + yoff, -xoff, -yoff);
}

Boolean wingame(void)
{
    int i, x, y, num;
    char *ptr;

    num = 0;
    for (i = 0; i < TargetPointNum; i++) {
        x = GameTargetData[i].x;
        y = GameTargetData[i].y;
        ptr = GamePad + x + y * PadWidth;
        if ((*ptr & PadTarget) && (*ptr & PadBox))
            num++;
        else
            break;
    }
    if (num != TargetPointNum)
        return FALSE;
    else
        return TRUE;
}