/*
* Checks whatever the line of sight between two game entities is clear or not
* precision describes how many iterations of collision checks are done per call
* */
public static bool checkLineOfSight(GameEntity start, GameEntity end, int precision)
{
//create a vector2 with a position of an "imaginary bullet" - a bullet on its path from the entity
//to the position of the player
Vector2 imaginaryBulletPosition = start.Position;
//divide the distance into 10 steps - not super precise,but enough for quick detection
Vector2 iStep = (end.Position - start.Position) / (float)precision;
//do the collision check for each step
for (int i = 0; i < precision; i++)
{
if (Collisions.checkWallsCollisionsSimple(imaginaryBulletPosition, MapManager.Instance.currentMap))
{
return(false);
}
imaginaryBulletPosition += iStep;
}
//return true if there was no collision along the way
return(true);
}
public override void Tick(float dt)
{
base.Tick(dt);
GamePadData data = GamePad.GetData(0);
float analogX = 0.0f;
float analogY = 0.0f;
//d-pad movement,emulating analog movement of the sticks
if (Input2.GamePad0.Right.Down)
{
analogX = 1.0f;
}
else if (Input2.GamePad0.Left.Down)
{
analogX = -1.0f;
}
if (Input2.GamePad0.Up.Down)
{
analogY = -1.0f;
}
else if (Input2.GamePad0.Down.Down)
{
analogY = 1.0f;
}
//if the left stick is moving,then use values read from the stick
if (data.AnalogLeftX > 0.2f || data.AnalogLeftX < -0.2f || data.AnalogLeftY > 0.2f || data.AnalogLeftY < -0.2f)
{
analogX = data.AnalogLeftX;
analogY = data.AnalogLeftY;
}
//calculate the position
/*if(analogX>0)
* {
* Position = new Vector2 (Position.X + 0.1f, Position.Y);
* }else if(analogX<0)
* {
* Position = new Vector2 (Position.X - 0.1f, Position.Y);
* }
*
* if(analogY>0)
* {
* Position = new Vector2 (Position.X + Position.Y- 0.1f);
* }else if(analogY<0)
* {
* Position = new Vector2 (Position.X, Position.Y + 0.1f);
* }*/
Vector2 proposedChange;
if (analogX != 0.0f)
{
proposedChange = new Vector2(analogX / 10f, 0.0f);
if (!Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref proposedChange))
{
Position += proposedChange;
}
}
if (analogY != 0.0f)
{
proposedChange = new Vector2(0.0f, -analogY / 10f);
if (!Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref proposedChange))
{
Position += proposedChange;
}
}
//rotate according to the right analog stick, or if it's not moving, then according the the left stick
// so basically if you are not pointing the player in any direction with the right stick he is going to point in the walking direction
//or if both sticks are not moving,then use the analogX and analogY values(d-pad movement)
// OR do autoaim if enabled
if (data.AnalogRightX > 0.2f || data.AnalogRightX < -0.2f || data.AnalogRightY > 0.2f || data.AnalogRightY < -0.2f)
{
var angleInRadians = FMath.Atan2(-data.AnalogRightX, -data.AnalogRightY);
playerBodySprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
}
else if (!Game.autoAim && (data.AnalogLeftX > 0.2f || data.AnalogLeftX < -0.2f || data.AnalogLeftY > 0.2f || data.AnalogLeftY < -0.2f))
{
var angleInRadians = FMath.Atan2(-data.AnalogLeftX, -data.AnalogLeftY);
playerBodySprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
}
else if (!Game.autoAim && (analogX != 0.0f || analogY != 0.0f))
{
var angleInRadians = FMath.Atan2(-analogX, -analogY);
playerBodySprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
}
else if (Game.autoAim)
{
GameEntity e;
if (Collisions.findNearestEnemy(Player.Instance, 8.0f, out e))
{
Vector2 distance = (Player.Instance.Position - e.Position).Normalize();
var angleInRadians = FMath.Atan2(distance.X, -distance.Y);
playerBodySprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
}
else
{
var angleInRadians = FMath.Atan2(-analogX, -analogY);
playerBodySprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
}
}
}
public override void Tick(float dt)
{
//base.Tick(dt);
if (Player.Instance == null)
{
}
else
{
setCameraPosition();
}
//check bullet delay
if (Bullet.bulletDelay > 0)
{
Bullet.bulletDelay--;
}
//check buttons
if (Input2.GamePad0.Cross.Down || Input2.GamePad0.R.Down)
{
if (Bullet.bulletDelay == 0 && Player.Instance.ammo > 0)
{
SoundSystem.Instance.Play("shot.wav");
Bullet bullet = new Bullet();
bulletList.Add(bullet);
World.AddChild(bullet);
Bullet.bulletDelay = 2;
Player.Instance.ammo--;
//update player's sprite
Player.Instance.playerBodySprite.TileIndex1D = Player.Instance.animationFrame;
Player.Instance.animationFrame = (Player.Instance.animationFrame + 1) % Player.Instance.playerBodySprite.TextureInfo.NumTiles.X;
}
}
//check buttons
if (Input2.GamePad0.Cross.Release || Input2.GamePad0.R.Release)
{
//update player's sprite
Player.Instance.playerBodySprite.TileIndex1D = 0;
}
//check start button(for pause menu)
if (Input2.GamePad0.Start.Press)
{
this.paused = true;
SceneManager.Instance.pushScene(PauseScene.Instance);
}
// pinch-to-zoom
//only check for multitouch points if device supports more than one touch point
if (Input2.Touch.MaxTouch > 1)
{
//only proceed if the user is actually touching both points
if (Input2.Touch.GetData(0)[0].Down && Input2.Touch.GetData(0)[1].Down)
{
//first touch point
Vector2 touch1 = Director.Instance.CurrentScene.GetTouchPos(0);
//second touch point
Vector2 touch2 = Director.Instance.CurrentScene.GetTouchPos(1);
//reset the distance measure if the screen has just been touched
if (Input2.Touch.GetData(0)[0].Press || Input2.Touch.GetData(0)[1].Press)
{
multitouchDistance = touch1.Distance(touch2);
}
else
{
var newDistance = touch1.Distance(touch2);
cameraHeight += (multitouchDistance - newDistance);
this.Camera2D.SetViewFromHeightAndCenter(cameraHeight, Player.Instance.Position);
}
}
}
//check if the player has collected any ammo packs
AmmoItem ammoItemToRemove;
if (Collisions.checkAmmoPackCollisions(Player.Instance, ammoList, out ammoItemToRemove))
{
Game.Instance.EffectsLayer.AddChild(new ammoMarker(ammoItemToRemove.Position));
SoundSystem.Instance.Play("ammoclip.wav");
World.RemoveChild(ammoItemToRemove, true);
ammoList.Remove(ammoItemToRemove);
Player.Instance.ammo = (int)FMath.Clamp((Player.Instance.ammo + 50), 100, 100);
ammoItemToRemove.Die();
}
if (Player.Instance.Health <= 0)
{
Background.RemoveAllChildren(true);
Foreground.RemoveAllChildren(true);
EffectsLayer.RemoveAllChildren(true);
World.RemoveAllChildren(true);
Interface.RemoveAllChildren(true);
SceneManager.Instance.changeSceneTo(GameOverScene.Instance);
//Sce.PlayStation.HighLevel.GameEngine2D.Scheduler.Instance.Unschedule(Scene, gameTick);
//Sce.PlayStation.HighLevel.GameEngine2D.Scheduler.Instance.Schedule(Scene, gameoverTick, 0.0f, false);
}
}
public override void Tick(float dt)
{
Enemy tempEnemy;
//check the collision with the walls
if (Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref step))
{
//play a sound
SoundSystem.Instance.Play("wallhit2.wav");
float scale = 0.5f;
//try a texture in place of the bullethole
SpriteUV bulletHole = new SpriteUV();
bulletHole.TextureInfo = new TextureInfo(fireTexture);
bulletHole.Scale = new Vector2(0.15f, 0.15f);
bulletHole.Color = Colors.Black;
bulletHole.CenterSprite(new Vector2(0.5f, 0.5f));
bulletHole.Position = Position + step;
//remove the bulletHole after half a second
bulletHole.ScheduleInterval((at) => bulletHole.Parent.RemoveChild(bulletHole, true), 0.5f, -1);
//add the bullethole to the background
Game.Instance.Background.AddChild(bulletHole);
//remove this bullet
this.Parent.RemoveChild(this, true);
Game.Instance.bulletList.Remove(this);
//die
this.Die();
}
else if (Collisions.checkEnemiesCollisions(this, Game.Instance.enemyList, step, out tempEnemy))
{
//reduce the health of the enemy the bullet hit
tempEnemy.health -= bulletDamage;
float scale = 0.5f;
//particles!
//create and start the particle emmiter
/*Particles fire_node= new Particles( 10 );
* ParticleSystem fire = fire_node.ParticleSystem;
*
* fire.TextureInfo = new TextureInfo( fireTexture );
* fire.Emit.Velocity = step;
* fire.Emit.VelocityVar = new Vector2( 2.0f, 2.0f );
* fire.Emit.ForwardMomentum = 0.0f;
* fire.Emit.AngularMomentun = 0.0f;
* fire.Emit.LifeSpan = 0.5f;
* fire.Emit.WaitTime = 0.0f;
* float s = 0.0f;
* fire_node.Position = Position+step;
* fire.Emit.PositionVar = new Vector2(s,s);
* fire.Emit.ColorStart = Colors.Red;
* fire.Emit.ColorStartVar = new Vector4(0.0f,0.0f,0.0f,0.0f);
* fire.Emit.ColorEnd = Colors.Red;
* fire.Emit.ColorEndVar = new Vector4(0.2f,0.0f,0.0f,0.0f);
* fire.Emit.ScaleStart = 0.3f * scale;
* fire.Emit.ScaleStartRelVar = 0.2f;
* fire.Emit.ScaleEnd = 0.6f * scale;
* fire.Emit.ScaleEndRelVar = 0.2f;
* fire.Simulation.Fade = 0.5f;
* fire.Simulation.Gravity = 0.0f;
*
* fire.Emit.Transform = fire_node.GetWorldTransform();
* fire.Emit.TransformForVelocityEstimate = fire_node.GetWorldTransform();
* fire.RenderTransform = Director.Instance.CurrentScene.GetWorldTransform(); // most probably identity
*
* Director.Instance.CurrentScene.AddChild(fire_node);
*
* Director.Instance.CurrentScene.RegisterDisposeOnExit(fire);
*
* //remove the particle emmiter after 0.5 seconds
* fire_node.ScheduleInterval((at) => Director.Instance.CurrentScene.RemoveChild(fire_node,true),0.5f,1);
*/
this.Parent.RemoveChild(this, true);
Game.Instance.bulletList.Remove(this);
this.Die();
}
else
{
//no collisions with anything,move the bullet
Position += step;
}
}
public BasicEnemy(Vector2 pos, TextureInfo tex)
{
Position = pos;
sprite = new SpriteTile();
sprite.TextureInfo = tex;
sprite.Position = pos;
sprite.TileIndex2D = new Vector2i(0, 0);
sprite.CenterSprite(new Vector2(0.4f, 0.5f));
sprite.Scale = new Vector2(2.0f, 2.0f);
//set up the random vector
randomMovement = Support.rand.NextVector2(-0.01f, 0.01f);
//update the animation frames
sprite.Schedule((dt) => {
if (FrameCount % 2 == 0)
{
//if attacking,use all animation frames
if (attacking)
{
//deal damage to the player
if (FrameCount % damageDelay == 0)
{
Player.Instance.Health -= damage;
}
animationFrame = (animationFrame + 1) % 25;
}
else
{
//if not,then use first three animation frames
animationFrame = (animationFrame + 1) % 4;
}
//assign the correct tileindex
sprite.TileIndex1D = animationFrame;
//if close to the player,then follow,otherwise move randomly
if (Player.Instance.Position.Distance(sprite.Position) < 6.0f &&
Collisions.checkLineOfSight(this, Player.Instance))
{
isMovingRandomly = false;
step = (Player.Instance.Position - sprite.Position).Normalize() / 15.0f;
//check if should be attacking
if (Collisions.checkCollisionBetweenEntities(this, Player.Instance))
{
//check if is not attacking already
if (attacking == false)
{
attacking = true;
//manualy skip the frames
animationFrame = 4;
}
}
else
{
//make sure that attacking is set to false
attacking = false;
}
}
else
{
//player is not within range, move randomly
isMovingRandomly = true;
step = randomMovement;
}
}
//advance the position by the given Vector2 step
sprite.Position += step;
//only move when not attacking
if (!attacking)
{
//collision detection on the X axis
//create a vector 2 containing a proposed change to the position
Vector2 proposedChange = new Vector2(step.X, 0.0f) * speedModifier;
//temporary game entity to contain the entity the enemy might have collided with
GameEntity tempEntity;
//check wall collisions and then collisions with other enemies
if (!Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref proposedChange) && !Collisions.efficientCollisionsCheck(this, proposedChange, out tempEntity))
{
//no collision, so we can change the position
Position += proposedChange / speedModifier;
}
else if (isMovingRandomly)
{
//collided with something,but if the enemy should be moving randomly, then let it move
randomMovement.X = -randomMovement.X;
}
//collision detection on the Y axis
proposedChange = new Vector2(0.0f, step.Y) * speedModifier;
if (!Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref proposedChange) && !Collisions.efficientCollisionsCheck(this, proposedChange, out tempEntity))
{
Position += proposedChange / speedModifier;
}
else if (isMovingRandomly)
{
randomMovement.Y = -randomMovement.Y;
}
//position changed, so we need to remove the entity from the QuadTree and add again
//this is because the entity might be in the wrong place in the QuadTree and removing and re-adding is the only way to fix that
Game.Instance.quadTree.removeEntity(this);
Game.Instance.quadTree.insert(this);
}
//rotate the sprite to face the direction of walking
var angleInRadians = -FMath.Atan2(step.X, step.Y);
sprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
//correct for the fact that the sprite is rotated in the texture file
sprite.Rotation = sprite.Rotation.Rotate(90.0f);
}, -1);
//create a shadow texture - temporarily disabled
//SpriteUV shadow = new SpriteUV(new TextureInfo(Bullet.fireTexture));
//shadow.CenterSprite(new Vector2(0.5f,0.5f));
//shadow.Color = Sce.PlayStation.HighLevel.GameEngine2D.Base.Math.SetAlpha(Colors.Black,0.5f);
//calculate the bounds for the entire sprite
bounds = new Bounds2();
sprite.GetlContentLocalBounds(ref bounds);
bounds = new Bounds2(bounds.Min * 0.5f, bounds.Max * 0.5f);
}
