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Added particle system

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This commit is contained in:
Simon Lübeß
2022-02-13 23:56:58 +01:00
parent 7f11b982ee
commit f49acf34a1
3 changed files with 213 additions and 29 deletions
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Sandbox/src/Rocket.bf
+79 -28
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@@ -20,6 +20,9 @@ namespace Sandbox
private Vector2 _speed;
private Vector2 _position;
private Vector2 _direction;
private Line2D _rocketLine;
private float _rotation = -MathHelper.PiOverTwo;
@@ -31,45 +34,93 @@ namespace Sandbox
public int Score = 0;
public Vector2 Position => _position;
public Vector2 Direction => _direction;
ParticleSystem _particleSystem ~ delete _;
public this()
{
_rocketTexture = new Texture2D("content/RocketGame/Rocket.dds");
_rocketTexture.SamplerState = SamplerStateManager.PointClamp;
_particleSystem = new ParticleSystem(1024)
{
LiveTime = 1.0f,
LiveTimeVariance = 0.5f,
Emit = true,
};
}
public void Update(GameTime gameTime)
{
FlightSpeed = Dead ? 0.0f : 2.0f;
if (Dead && Input.IsKeyPressing(Key.Space))
do
{
Dead = false;
Started = false;
_speed = .Zero;
Score = 0;
}
else if (!Started)
{
_position = .Zero;
FlightSpeed = Dead ? 0.0f : 2.0f;
if (Input.IsKeyPressing(Key.Space))
Started = true;
else
return;
if (Dead && Input.IsKeyPressing(Key.Space))
{
Dead = false;
Started = false;
_speed = .Zero;
Score = 0;
}
else if (!Started)
{
_position = .Zero;
if (Input.IsKeyPressing(Key.Space))
Started = true;
else
break;
}
UpdatePosition(gameTime);
if (Started)
CheckDead();
}
UpdateParticles(gameTime);
}
private void UpdateParticles(GameTime gameTime)
{
_particleSystem.Position = Position - Direction * 0.4f;
_particleSystem.EmissionDirection = -Direction;
_particleSystem.EmissionVelocity = FlightSpeed * 2;
_particleSystem.EmissionAngle = MathHelper.PiOverFour / 2;
_particleSystem.Emit = !Dead;
if (Input.IsKeyPressing(Key.Space))
{
_particleSystem.EmissionRate = 100;
_particleSystem.EmissionSize = 0.125f;
_particleSystem.EmissionSizeVariance = 0.025f;
_particleSystem.EmmisionColor = .(255, 106, 0);
}
else if (Input.IsKeyReleasing(Key.Space))
{
_particleSystem.EmissionRate = 10;
_particleSystem.EmissionSize = 0.075f;
_particleSystem.EmissionSizeVariance = 0.025f;
_particleSystem.EmmisionColor = .(140, 126, 93);
}
UpdatePosition(gameTime);
_particleSystem.Update(gameTime);
if (Started)
CheckDead();
}
public void Draw()
{
Renderer2D.DrawQuad(_position, .One, _rotation, _rocketTexture, .White);
}
_particleSystem.Draw();
Line2D rocketLine;
Renderer2D.DrawQuad(Vector3(_position, 5), .One, _rotation, _rocketTexture, .White);
}
private void UpdatePosition(GameTime gameTime)
{
@@ -91,8 +142,8 @@ namespace Sandbox
_rotation = ang;
Vector2 dir = Vector2.Normalize(_speed + .(10, 0));
rocketLine = .(_position - dir / 2.8f, _position + dir / 2.4f);
_direction = Vector2.Normalize(_speed + .(10, 0));
_rocketLine = .(_position - _direction / 2.8f, _position + _direction / 2.4f);
}
const float worldBorder = 2.1f;
@@ -136,17 +187,17 @@ namespace Sandbox
Line2D topR = .(topTip, topRight);
Line2D topL = .(topTip, topLeft);
if ((bottomR.Intersects(rocketLine) case .Intersection) ||
(bottomL.Intersects(rocketLine) case .Intersection) ||
(topR.Intersects(rocketLine) case .Intersection) ||
(topL.Intersects(rocketLine) case .Intersection))
if ((bottomR.Intersects(_rocketLine) case .Intersection) ||
(bottomL.Intersects(_rocketLine) case .Intersection) ||
(topR.Intersects(_rocketLine) case .Intersection) ||
(topL.Intersects(_rocketLine) case .Intersection))
{
Dead = true;
}
if (!Dead)
{
if (Line2D(bottomTip, topTip).Intersects(rocketLine) case .Intersection)
if (Line2D(bottomTip, topTip).Intersects(_rocketLine) case .Intersection)
{
scoreLine = @obs.Index;
}