Esempio n. 1
0
        private void SpawnParticle(float lerpLife, Vector2 position)
        {
            float _newLife     = Particle.GetLerpValueWithVariation(_life.Values, _lifeVariation.Values, lerpLife);
            float _newQuantity = Particle.GetLerpValueWithVariation(_quantity.Values, _quantityVariation.Values, lerpLife);
            float _newWidth    = Particle.GetLerpValueWithVariation(_width.Values, _widthVariation.Values, lerpLife);
            float _newHeight;

            if (_keepAspectRatio == false)
            {
                _newHeight = Particle.GetLerpValueWithVariation(_height.Values, _heightVariation.Values, lerpLife);
            }
            else
            {
                _newHeight = _newWidth;
            }
            float _newVelocity     = Particle.GetLerpValueWithVariation(_velocity.Values, _velocityVariation.Values, lerpLife);
            float _newWeight       = Particle.GetLerpValueWithVariation(_weight.Values, _weightVariation.Values, lerpLife);
            float _newSpin         = Particle.GetLerpValueWithVariation(_spin.Values, _spinVariation.Values, lerpLife);
            float _newMotionRandom = Particle.GetLerpValueWithVariation(_motionRandom.Values, _motionRandomVariation.Values, lerpLife);
            float _newOpacity      = Particle.GetLerpValueWithVariation(_opacity.Values, _opacityVariation.Values, lerpLife);
            float _newEmissionAngle;

            if (_useEmitterAngle)
            {
                _newEmissionAngle = MathHelper.ToRadians((_emitterEmissionAngle + Particle.GetRandomVariationValue(_emitterEmissionRange)));
            }
            else
            {
                _newEmissionAngle = MathHelper.ToRadians(Particle.GetLerpValueWithVariation(_emissionAngle.Values, _emissionRange.Values, lerpLife));
            }
            float _newRedTint   = MathHelper.Clamp(Particle.GetLerpValueWithVariation(_redTint.Values, _redTintVariation.Values, lerpLife), 0, 1);
            float _newGreenTint = MathHelper.Clamp(Particle.GetLerpValueWithVariation(_greenTint.Values, _greenTintVariation.Values, lerpLife), 0, 1);
            float _newBlueTint  = MathHelper.Clamp(Particle.GetLerpValueWithVariation(_blueTint.Values, _blueTintVariation.Values, lerpLife), 0, 1);
            float _rotation;

            if (_particleOrientationType == ParticleOrientationType.Random)
            {
                _rotation = Randomizer.AngleInDegrees();
            }
            else
            {
                _rotation = _fixedParticleOrientationAngle;
            }

            Particle _newParticle;

            // if no more place, add a new particle
            if (_freeParticles.Count == 0)
            {
                _newParticle = new Particle();
                _particles.Add(_newParticle);
            }
            //else use a free slot
            else
            {
                _newParticle = _freeParticles.Dequeue();
            }
            int tile = _tileDefault;

            if (TileUseRandom == true)
            {
                int tileTotal = TileRows * TileCols - TileTotalOffset;
                tile = Randomizer.Integer(0, tileTotal - 1);
            }
            // change the settings
            _newParticle.ModifiyParticle(this, _material, tile, _keepAspectRatio, _particleOrientationType, _newLife, _newWidth, _newHeight, _newVelocity, _newWeight, _newSpin, _newMotionRandom, _newEmissionAngle,
                                         position, _rotation, _newRedTint, _newGreenTint, _newBlueTint, _newOpacity, _texturePivot, true, overLifeSettings);
            // activate it
            _newParticle.IsActive = true;
        }