/// <summary>
///
/// </summary>
/// <param name="scene"></param>
/// <param name="pos">position</param>
/// <param name="owner">owner gameobject ex. cCharacter</param>
/// <param name="direction">normalized vector of direction</param>
public cBullet(cGameObject owner, BulletBreed breed, Vector2f pos, Vector2f direction) : base(owner.Scene, pos)
{
this.owner = owner;
this.breed = breed;
this.alive = true;
this.alpha = 255.0f;
// proci határozza meg, hogy milyen alaplap foglalat és milyen RAM!!
this.heading = direction;
this.Bounds = new AABB();
this.Bounds.SetDims(new Vector2f(1.0f, 1.0f));
this.oppositeDir = new Vector2f(-this.heading.X * breed.slugLength, -this.heading.Y * breed.slugLength);
this.intersection = new Vector2f(0.0f, 0.0f);
this.Bounds.SetPosByTopLeft(pos);
this.velocity.X = this.heading.X * breed.startSpeed;
this.velocity.Y = this.heading.Y * breed.startSpeed;
orientation = AppMath.GetAngleOfVector(heading);
this.sprite = new Sprite(this.breed.sprite); // bullet_yellow_sm; bullet_light_gree
this.sprite.Rotation = (float)AppMath.RadianToDegress(this.orientation);
}
public override void BuildVertexBuffer(float alpha)
{
uint multiplier = 4;
uint vNum = ((uint)pool.CountActive * multiplier) + 1;
//vertices.Clear();
vertices.Resize(vNum);
float division = 2.0f;
Vector2u uSize = this.renderStates.Texture.Size;
float tSizeX = uSize.X;
float tSizeY = uSize.Y;
Vector2f halfDims = new Vector2f();
for (int i = 0; i < pool.CountActive; ++i)
{
Particle p = pool.get(i);
halfDims.X = p.Dims.X / division;
halfDims.Y = p.Dims.Y / division;
p.ViewPos = AppMath.Interpolate(p.Pos, p.LastPos, alpha);
uint vertexIndex = (uint)i * multiplier;
Vector2f v0Pos = new Vector2f(p.ViewPos.X - halfDims.X,
p.ViewPos.Y - halfDims.Y);
Vector2f v1Pos = new Vector2f(p.ViewPos.X + halfDims.X,
p.ViewPos.Y - halfDims.Y);
Vector2f v2Pos = new Vector2f(p.ViewPos.X + halfDims.X,
p.ViewPos.Y + halfDims.Y);
Vector2f v3Pos = new Vector2f(p.ViewPos.X - halfDims.X,
p.ViewPos.Y + halfDims.Y);
// if want rotation included:
Transform rot = Transform.Identity;
rot.Rotate((float)AppMath.RadianToDegress(p.Rotation), p.ViewPos);
v0Pos = rot.TransformPoint(v0Pos);
v1Pos = rot.TransformPoint(v1Pos);
v2Pos = rot.TransformPoint(v2Pos);
v3Pos = rot.TransformPoint(v3Pos);
// END of rotation code
// Top-left
Vertex v0 = new Vertex(
v0Pos,
p.Color,
new Vector2f(0.0f, 0.0f)
);
// Top-right
Vertex v1 = new Vertex(
v1Pos,
p.Color,
new Vector2f(tSizeX, 0.0f)
);
// Bottom-right
Vertex v2 = new Vertex(
v2Pos,
p.Color,
new Vector2f(tSizeX, tSizeY)
);
//Bottom-left
Vertex v3 = new Vertex(
v3Pos,
p.Color,
new Vector2f(0.0f, tSizeY)
);
vertices[vertexIndex + 0] = v0;
vertices[vertexIndex + 1] = v1;
vertices[vertexIndex + 2] = v2;
vertices[vertexIndex + 3] = v3;
}
}
