bool addNewSurvivor(){
unsigned int wall = rand()%4;
Position p;
if(wall == 0){
p = (Position){ GRID_WIDTH-1, rand()%20 };
}
else if(wall== 1){
p = (Position){ rand()%30, 0 };
}
else if(wall == 2){
p = (Position){ rand()%30, GRID_HEIGHT-1};
}
else{
p = (Position){ 0, rand()%20 };
}
if(getEntityAt(p) == NULL){
grid[p.x][p.y] = createSurvivor(p);
return true;
}
else{
return false;
}
}
bool shoot(Entity shooter, Position shotAt){
if(getEntityAt(shotAt)->type == ET_ZOMBIE){
if(shooter->remainingPoints > 0){
//if the random number is greater than the number of moves, the shot hits
unsigned int distance = calculateDistance(shooter->position, shotAt);
if((rand()%50) > distance + score*.1){
//hit
Entity e = grid[shotAt.x][shotAt.y];
grid[shotAt.x][shotAt.y] = NULL;
score++;
freeEntity(e);
}
else{
//miss
}
shooter->remainingPoints -= 1;
return true;
}
else{
return false;
}
}
else{
return false;
}
}
//Draws the entities into the world
void drawEntities() {
Entity entityTemp;
for(int i = 0; i < getEntityNum(); i++) {
entityTemp = getEntityAt(i);
PlaceModel(*entityTemp.mesh, entityTemp.position.x, entityTemp.position.y, entityTemp.position.z, entityTemp.scale.x, entityTemp.scale.y, entityTemp.scale.z, entityTemp.angle);
}
}
void moveZombie(Entity z){
int r = rand()%4;
Position p = z->position;
Entity target = NULL;
for(signed int x = ( (signed int) p.x ) - 5; x <= ( (signed int) p.x ) + 5; x++) {
if(x < 0 || x >= GRID_WIDTH) {
continue;
}
for(signed int y = ( (signed int) p.y ) - 5; y <= ( (signed int) p.y ) + 5; y++) {
if(y < 0 || y >= GRID_HEIGHT) {
continue;
}
Entity e = getEntityAt((Position) { (unsigned int) x, (unsigned int) y });
if(e && e->type == ET_SURVIVOR) {
if(target) {
Position o = getPosition(target);
Position u = getPosition(e);
if(calculateDistance(p, u) < calculateDistance(p, o)) {
target = e;
}
}
else {
target = e;
}
}
}
}
if(target) {
Position o = getPosition(target);
if(calculateDistance(p, o) == 1) {
// Attack
target->remainingHealth--;
if(target->remainingHealth == 0) {
// Convert the heretics
NumSurvivors--;
score -= 3;
target->type = ET_ZOMBIE;
}
}
else if(o.y < p.y) {
p.y--;
}
else if(o.y > p.y) {
p.y++;
}
else if(o.x < p.x) {
p.x--;
}
else if(o.x > p.x) {
p.x++;
}
}
else {
if(r == 0){
p.x--;
}
else if(r==1){
p.y++;
}
else if(r==2){
p.x++;
}
else{
p.y--;
}
if(p.x >= GRID_WIDTH){
p.x = z->position.x;;
}
if(p.y >= GRID_HEIGHT){
p.y = z->position.y;
}
}
if(z->position.x != p.x || z->position.y != p.y) {
move(z,p);
}
}
