gameplay.c

来自「linux/unix环境下的建站系统」· C语言 代码 · 共 143 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(int 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;
}