Slick2D - Entities and rendering
- by Zarkopafilis
I have been trying to create my very first game for quite a while, followed some tutorials and stuff, but I am stuck at creating my entity system. I have made a class that extends the Entity class and here it is:
public class Lazer extends Entity{//Just say that it is some sort of bullet
private Play p;//Play class(State)
private float x;
private float y;
private int direction;
public Lazer(Play p, float x , float y, int direction){
this.p = p;
this.x = x;
this.y = y;
this.direction = direction;
p.ent.add(this);
}
public int getDirection(){
return direction; //this one specifies what value will be increased (x/y) at update
}
public float getX(){
return x;
}
public float getY(){
return y;
}
public void setY(float y){
this.y = y;
}
public void setX(float x){
this.x = x;
}
}
The class seems pretty good , after speding some hours googling what would be the right thing.
Now, on my Play class. I cant figure out how to draw them. (I have added them to an arraylist) On the update method , I update the lazers based on their direction:
public void moveLazers(int delta){
for(int i=0;i<ent.size();i++){
Lazer l = ent.get(i);
if(l.getDirection() == 1){
l.setX(l.getX() + delta * .1f);
}else if(l.getDirection() == 2){
l.setX(l.getX() - delta * .1f);
}else if(l.getDirection() == 3){
l.setY(l.getY() + delta * .1f);
}else if(l.getDirection() == 4){
l.setY(l.getY() - delta * .1f);
}
}
}
Now , I am stuck at the render method. Anyway , is this the correct way of doing this or do I need to change stuff? Also I need to know if collision detection needs to be in the update method. Thanks in advance ~ Teo Ntakouris
