Created Particles, added fairy particle, added more entity methods like kill() and entity id

data/scripts/entities/particle.lua

@@ -0,0 +1,48 @@
+Particle = Entity:New(x,y)
+
+ function Particle:New(x,y,animation,rotation,speed)
+ 	local o = Entity:New(x,y)
+
+ 	o.pos = {x = x, y = y}
+  o.speed = speed or 0
+  o.sprite_rotation = rotation or 0
+
+  o.time = 0.5
+  o.timer = 0
+
+  o.vel = {
+    x = o.speed * math.cos(o.sprite_rotation),
+    y = o.speed * math.sin(o.sprite_rotation)
+  }
+
+  -- animations
+  o.body = Animation:New(animation)
+  
+  table.insert(LoadedEntities,o)
+  o.id = #LoadedEntities
+
+ 	setmetatable(o, self)
+ 	self.__index = self
+ 	return o
+ end
+
+function Particle:Smart()
+
+end
+
+function Particle:HandleAnimation()
+  self.body:Animate()
+  self.timer = self.timer + current_dt
+  self.sprite_alpha = (self.time-self.timer)/self.time
+  if self.sprite_alpha < 0 then self:Kill() end
+  self:Draw(self.body)
+end
+
+function Particle:DoPhysics()
+  if not self:isCollidingAt(self.pos.x + self.vel.x, self.pos.y, objects.collisions) then
+    self.pos.x = self.pos.x + self.vel.x
+  end
+  if not self:isCollidingAt(self.pos.x, self.pos.y + self.vel.y, objects.collisions) then
+    self.pos.y = self.pos.y + self.vel.y
+  end
+end