/// <summary>
/// Checks if rotRectangle blocks the Path from position in direction
/// </summary>
/// <param name="position"></param>
/// <param name="direction"></param>
/// <param name="rotRectangle"></param>
/// <returns></returns>
public static bool CheckCollision(Vector2 position, Vector2 direction, float width, RotRectangle rotRectangle)
{
//Vector2 direction = target - position;
float angle = (float)Math.Atan(direction.Y / direction.X);
RotRectangle line = new RotRectangle(0, position + direction / 2, new Vector2(direction.Length() / 2, width / 2));
line.Rotate(angle);
return(CheckCollision(rotRectangle, line));
}
private bool CheckCollisions(RotRectangle hitbox)
{
//if (worldObjects.Count == 0) return false;
foreach (RotRectangle playerSpawnPosition in spawnPositons)
{
if (CollisionCheck.CheckCollision(hitbox, playerSpawnPosition))
{
return(true);
}
}
return(false);
}
public Animation(AnimationType animationType, RotRectangle hitbox)
{
this.animationType = animationType;
timeExisting = new TimeSpan(0, 0, 0, 0, 0);
this.hitbox = hitbox;
currentFrame = 0;
switch (animationType)
{
case AnimationType.Explosion:
repeating = false;
frameTime = new TimeSpan(0, 0, 0, 0, 100);
frameCount = 11;
spritesheet = TextureCollection.Instance.GetTexture(TextureType.Explosion_Animation);
break;
case AnimationType.Flamethrower:
repeating = true;
frameTime = new TimeSpan(0, 0, 0, 0, 100);
frameCount = 10;
spritesheet = TextureCollection.Instance.GetTexture(TextureType.Active_FlamethrowerAnimation);
break;
case AnimationType.Zombie_Slow:
repeating = true;
frameTime = new TimeSpan(0, 0, 0, 0, 150);
frameCount = 8;
spritesheet = TextureCollection.Instance.GetTexture(TextureType.Enemy_Zombie_Slow_Animation);
break;
case AnimationType.Zombie_Fast:
repeating = true;
frameTime = new TimeSpan(0, 0, 0, 0, 150);
frameCount = 8;
spritesheet = TextureCollection.Instance.GetTexture(TextureType.Enemy_Zombie_Fast_Animation);
break;
case AnimationType.Shockwave:
repeating = false;
frameCount = 7;
frameTime = new TimeSpan(0, 0, 0, 0, 500 / 7);
spritesheet = TextureCollection.Instance.GetTexture(TextureType.Active_ShockwaveAnimation);
break;
}
animationOffset = new Vector2((spritesheet.Width / frameCount) / 2, spritesheet.Height / 2);
}
public TrapLauncher(Scene scene, Player player, int objectID) : base(scene, player, objectID)
{
damage = 200;
resetLivingTimer = 8;
resetActivationCooldownTimer = 5;
texture = TextureCollection.Instance.GetTexture(TextureType.Active_Trap);
hitbox = new RotRectangle(0, player.Hitbox.Center, new Vector2(texture.Width / 2, texture.Height / 2));
isExploded = false;
explosionAnimation = new Animation(AnimationType.Explosion, hitbox);
soundExplosion = SoundCollection.Instance.GetSoundInstance(SoundType.RocketLauncher_Explosion);
soundTrapLaunch = SoundCollection.Instance.GetSoundInstance(SoundType.Trap_Launch);
UpdateVolume();
}
public FlameThrower(Scene scene, Player player, int objectID) : base(scene, player, objectID)
{
damage = 400;
resetActivationCooldownTimer = 6;
resetLivingTimer = 4;
damagePerTick = (int)(damage / (resetLivingTimer * 4));
texture = TextureCollection.Instance.GetTexture(TextureType.Active_FlameThrower);
hitbox = new RotRectangle(0, new Vector2((player.Hitbox.Corners[1].X + player.Hitbox.Corners[2].X) / 2, player.Hitbox.Corners[2].Y - texture.Height / 2), new Vector2(texture.Width / 2, texture.Height / 2));
damageTick = false;
tickTimer = new TimeSpan(0, 0, 0, 0, 0);
soundFlame = SoundCollection.Instance.GetSoundInstance(SoundType.FlameThrower);
UpdateVolume();
animation = new Animation(AnimationType.Flamethrower, hitbox);
}
public Shockwave(Scene scene, Player player, int objectID) : base(scene, player, objectID)
{
damage = 70;
resetActivationCooldownTimer = 2.5f;
resetLivingTimer = 0.5f;
collidedEntities = new List <Entity>();
textureShockwave = TextureCollection.Instance.GetTexture(TextureType.Active_Shockwave);
soundShockWave = SoundCollection.Instance.GetSoundInstance(SoundType.Shockwave);
UpdateVolume();
hitbox = new RotRectangle(player.Hitbox.RotationRad, player.Hitbox.Center, new Vector2(textureShockwave.Width / 2, textureShockwave.Height / 2));
animation = new Animation(AnimationType.Shockwave, hitbox);
// animation = new Animation(AnimationType.Explosion, new RotRectangle(hitbox.RotationRad, hitbox.Center /* -offset */, new Vector2(textureExplosion.Width / 2, textureExplosion.Height / 2)));
}
/// <summary>
/// Checks Collision of two rotated Rectangles
/// </summary>
/// <param name="r1"></param>
/// <param name="r2"></param>
/// <returns>True, if there is a collision</returns>
public static bool CheckCollision(RotRectangle r1, RotRectangle r2)
{
//Check if they are not in range of each other
if (r1.Offset.Length() + r2.Offset.Length() < (r1.Center - r2.Center).Length())
{
return(false);
}
else
{
//If they are in range of each other
//Use the seperating axis theorem (SAT) to check if they collide
Vector2 r1Axis1 = r1.Corners[3] - r1.Corners[0];
Vector2 r1Axis2 = r1.Corners[1] - r1.Corners[0];
Vector2 r2Axis1 = r2.Corners[3] - r2.Corners[0];
Vector2 r2Axis2 = r2.Corners[1] - r2.Corners[0];
//for each axis
//project the Corners of both rectangles on the axis and check if there is a gap between them
//if there is a gap then there is no colission
List <float> valuesR1 = new List <float>();
List <float> valuesR2 = new List <float>();
//r1Axis1
for (int i = 0; i < 4; i++)
{
valuesR1.Add(Vector2.Dot(r1.Corners[i], r1Axis1) / r1Axis1.LengthSquared());
}
for (int i = 0; i < 4; i++)
{
valuesR2.Add(Vector2.Dot(r2.Corners[i], r1Axis1) / r1Axis1.LengthSquared());
}
if (valuesR1.Min() > valuesR2.Max() || valuesR1.Max() < valuesR2.Min())
{
return(false);
}
//r1Axis2
valuesR1.Clear();
valuesR2.Clear();
for (int i = 0; i < 4; i++)
{
valuesR1.Add(Vector2.Dot(r1.Corners[i], r1Axis2) / r1Axis2.LengthSquared());
}
for (int i = 0; i < 4; i++)
{
valuesR2.Add(Vector2.Dot(r2.Corners[i], r1Axis2) / r1Axis2.LengthSquared());
}
if (valuesR1.Min() > valuesR2.Max() || valuesR1.Max() < valuesR2.Min())
{
return(false);
}
//r2Axis1
valuesR1.Clear();
valuesR2.Clear();
for (int i = 0; i < 4; i++)
{
valuesR1.Add(Vector2.Dot(r1.Corners[i], r2Axis1) / r2Axis1.LengthSquared());
}
for (int i = 0; i < 4; i++)
{
valuesR2.Add(Vector2.Dot(r2.Corners[i], r2Axis1) / r2Axis1.LengthSquared());
}
if (valuesR1.Min() > valuesR2.Max() || valuesR1.Max() < valuesR2.Min())
{
return(false);
}
//r2Axis2
valuesR1.Clear();
valuesR2.Clear();
for (int i = 0; i < 4; i++)
{
valuesR1.Add(Vector2.Dot(r1.Corners[i], r2Axis2) / r2Axis2.LengthSquared());
}
for (int i = 0; i < 4; i++)
{
valuesR2.Add(Vector2.Dot(r2.Corners[i], r2Axis2) / r2Axis2.LengthSquared());
}
if (valuesR1.Min() > valuesR2.Max() || valuesR1.Max() < valuesR2.Min())
{
return(false);
}
//if there is no gap on any axe the rectangles collide
return(true);
}
}
