#include <world.h>
#include <getPos.h>
#include <screen.h>
#include <collisionDetection.h>
void addZombie(){
	if(getOpenPos()){
		int attempts=0;
		while (attempts<=10){
			if(getOpenPos()){
				if((openPos.y > allEntities[0].curYpos+5 || openPos.y < allEntities[0].curYpos-5) || (openPos.x > allEntities[0].curXpos+5 || openPos.x < allEntities[0].curXpos-5)) {
					attempts=0;
					break;
				}
				else{
					getOpenPos();
					attempts++;
				}
			}	
			else{
				attempts=0;
				break;
			}
		}
		if (attempts<10){
			int i;
			for(i=0;i<MAX_ENTITIES-1;i++){
				if(!allEntities[i].isAlive){
					struct Entity zombie;
					zombie.curYpos=openPos.y;
					zombie.curXpos=openPos.x;
					zombie.nextYpos=openPos.y;
					zombie.nextXpos=openPos.x;
					zombie.type="zombie";
					zombie.symbol='Z';
					zombie.isAlive=1;
					allEntities[i]=zombie;
					mvwaddch(viewportWin, allEntities[i].curYpos, allEntities[i].curXpos, allEntities[i].symbol);
					wnoutrefresh(viewportWin);
					doupdate();
					break;
				}
			}
		}
	}
}

void moveZombies(){
	int i;
	for(i=1;i<MAX_ENTITIES;i++){
		if(allEntities[i].isAlive){	 
			int moveCheck = rand()%20;
			if(moveCheck==1){
				getNextPos(allEntities[i].curYpos,allEntities[i].curXpos,allEntities[0].curYpos,allEntities[0].curXpos);
				allEntities[i].nextYpos = nextPos.y;
				allEntities[i].nextXpos = nextPos.x;
		
				char charAtNextPos=mvwinch(viewportWin,allEntities[i].nextYpos,allEntities[i].nextXpos);
				if(charAtNextPos!='@' && charAtNextPos!=' '){
						allEntities[i].nextYpos = allEntities[i].curYpos;
						allEntities[i].nextXpos = allEntities[i].curXpos;
				}	
				
				if(allEntities[i].nextYpos < 1 || allEntities[i].nextYpos>viewportWinRows-2){
						allEntities[i].nextYpos = allEntities[i].curYpos;
				}
				if(allEntities[i].nextXpos < 1 || allEntities[i].nextXpos>viewportWinCols-2){
						allEntities[i].nextXpos = allEntities[i].curXpos;
				}
			}	
		}
	}	
}