From 2ec9cc77982829237fccc35dc49c6a7f910260c8 Mon Sep 17 00:00:00 2001
From: koz01 <koz01@pccpit1v203-096-040.vsb.cz>
Date: Wed, 27 Oct 2021 09:41:58 +0200
Subject: [PATCH] fix add deltaT to simulation computationh
---
src/main/java/lab/BulletAnimated.java | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/src/main/java/lab/BulletAnimated.java b/src/main/java/lab/BulletAnimated.java
index 729c7c0..d8b709e 100644
--- a/src/main/java/lab/BulletAnimated.java
+++ b/src/main/java/lab/BulletAnimated.java
@@ -62,18 +62,19 @@ public class BulletAnimated implements DrawableSimulable, Collisionable{
double strenghtOfCannon = cannon.getStrength() * STRENGTH_CANNON_COEFICIENT/100.;
speed = speed
.add(new Point2D(Math.cos(cannonAngle) * strenghtOfCannon, Math.sin(cannonAngle) * strenghtOfCannon)
- .multiply(1 / mass));
+ .multiply(deltaT / mass));
} else if (!hitToGround) {
accelerate = false;
Point2D airResistanceforce = new Point2D(
-1. / 2 * crossSectionalArea * Constants.AIR_DENSITY * dragCoefficient * Math.pow(speed.getX(), 2),
-1. / 2 * crossSectionalArea * Constants.AIR_DENSITY * 0.47 * Math.pow(speed.getY(), 2));
Point2D acceleration = new Point2D(-airResistanceforce.getX() * mass,
- (-Constants.GRAVITATIONAL_ACCELERATION + airResistanceforce.getY()) * mass);
- speed = speed.add(acceleration.multiply(timeStep / 1000));
+ (-Constants.GRAVITATIONAL_ACCELERATION/30 + airResistanceforce.getY()) * mass);
+ speed = speed.add(acceleration.multiply(deltaT));
+ System.out.println("speed"+ speed);
}
if (!hitToGround) {
- position = position.add(speed);
+ position = position.add(speed.multiply(deltaT*1000));
if (!accelerate && position.getY() <= size / 2) {
hitToGround = true;
position = new Point2D(position.getX(), size / 2);
--
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