Spaced Trail code

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

src/sig/JavaProjectTemplate.java

@@ -2,6 +2,7 @@ package sig;
 
 import sig.engine.AnimatedSprite;
 import sig.engine.Color;
+import sig.engine.Font;
 import sig.engine.Key;
 import sig.engine.Panel;
 import sig.engine.Sprite;
@@ -13,20 +14,17 @@ import java.util.List;
 class Player{
 	AnimatedSprite spr=new AnimatedSprite("player.png",32,32);
 	double x=200,y=200;
-
-	double animationFrame=0;
-	double animationSpd=2; //Animation Speed will be 2 frames per second
 	int TAIL_SPACING=32;
 
-	List<Tail> tail = new ArrayList<Tail>();
-	List<PositionMarker> path = new ArrayList<PositionMarker>();
+	List<Tail> tail = new ArrayList<Tail>(); //The tail container
+	List<PositionMarker> path = new ArrayList<PositionMarker>(); //The invisible trail container
 }
 
 class Tail{
 	double x,y;
 	Tail(List<PositionMarker> tailTrail,int TAIL_SPACING){
 		for (int i=0;i<TAIL_SPACING;i++) {
-			tailTrail.add(new PositionMarker());
+			tailTrail.add(new PositionMarker()); //When a tail is created, we create TAIL_SPACING number of trail markers as well.
 		}
 	}
 }
@@ -59,20 +57,17 @@ public class JavaProjectTemplate {
 			t.y=prev_tail_y;
 			prev_tail_x=prevpos_x;
 			prev_tail_y=prevpos_y;
-		}
+		} //Generates a very dense invisible trail.
 		for (int i=0;i<pl.tail.size();i++) {
 			Tail t = pl.tail.get(i);
 			t.x=pl.path.get(i*pl.TAIL_SPACING).x;
-			t.y=pl.path.get(i*pl.TAIL_SPACING).y;
+			t.y=pl.path.get(i*pl.TAIL_SPACING).y; //Each tail will get placed along the index of an invisible trail based on its position in the tail container.
 		}
 	}
 
 	public void updateGame(double fElapsedTime) {
 		//Put game update logic in here.
 
-		//Player sprite will animate.
-		pl.animationFrame+=pl.animationSpd*fElapsedTime;
-
 		//Allow player movement using WASD keys.
 		if (Key.isHeld(KeyEvent.VK_A)) {
 			pl.x-=200*fElapsedTime;
@@ -103,8 +98,10 @@ public class JavaProjectTemplate {
 		for (int i=0;i<pl.tail.size();i++) {
 			Tail t = pl.tail.get(i);
 			game.FillCircle(t.x+22, t.y+22, 10, Color.BLUE);
-			game.Draw_Circle((int)t.x+22, (int)t.y+22, 10, Color.BLACK);
+			game.Draw_Circle((int)t.x+22, (int)t.y+22, 10, Color.BLACK); //Draw our tail at the proper location.
 		}
+
+		game.Draw_Text_Ext(4, 4, "SPACE to create more tail", Font.PROFONT_36, Color.RED);
 	}
 
 	public static void main(String[] args) {