Cool fairy lights

data/scripts/animation.lua

@@ -10,11 +10,17 @@ function Animation:New(anim_data)
 	o.subframe = 0
 	o.frame = 1
 
+  o.draw = true
+
  setmetatable(o, self)
  self.__index = self
  return o
 end
 
+function Animation:Switch(status)
+  self.draw = status
+end
+
 function Animation:ChangeTo(anim_data)
 	if anim_data.path == self.path
 	then
@@ -26,6 +32,7 @@ end
 
 -- to manually handle what frame
 function Animation:DrawFrame(frame, x, y, rotate, sx, sy)
+    if self.draw then
   	if frame > self.frames then
   		frame = self.frames
   	end
@@ -42,6 +49,7 @@ function Animation:DrawFrame(frame, x, y, rotate, sx, sy)
   		sy
   	)
   end
+end
 
 -- to linearly animate
 function Animation:Animate()
@@ -63,6 +71,7 @@ end
 
 -- to draw the current frame
 function Animation:Draw(x, y, rotate, sx, sy)
+    if self.draw then
   	local x = x or 0
   	local y = y or 0
   	local sx = sx or 1
@@ -76,3 +85,4 @@ function Animation:Draw(x, y, rotate, sx, sy)
   		sy
   	)
   end
+end

data/scripts/entities/fairy.lua

@@ -14,7 +14,7 @@ Fairy = Entity:New(x,y)
   o:getBoundingBox(o.body)
 
 
-  o.lightRange = 55
+  o.lightRange = 0
 	o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
 
   table.insert(LoadedEntities,o)
@@ -35,18 +35,22 @@ function Fairy:Smart()
   local distance_y = self.target.y - self.pos.y
   local angle = GetAngleFromVector(distance_x,distance_y)
   local distance = math.sqrt(distance_x ^ 2 + distance_y ^ 2)
+
   if distance < self.range then
     self.vel.x = 0
     self.vel.y = 0
   else
-    self.vel.x = math.cos(angle)*self.speed*distance/(8*game.scale)
-    self.vel.y = math.sin(angle)*self.speed*distance/(8*game.scale)
+    self.vel.x = math.cos(angle)*self.speed*distance/8
+    self.vel.y = math.sin(angle)*self.speed*distance/8
   end
 
+  local random_angle = 45
   local particle_data = {
       animation = animation.particle.fairy,
-      direction = angle-math.rad(180),
-      speed = self.speed*distance/(16*game.scale)
+      direction = angle-math.rad(180+math.random(-random_angle,random_angle)),
+      speed = self.speed*distance/20,
+      light = 60,
+      min_light = 5
   }
 
   Particle:New(self.pos.x,self.pos.y,particle_data)

data/scripts/entities/particle.lua

@@ -15,6 +15,12 @@ Particle = Entity:New(x,y)
   o.sprite_alpha = particle_data.sprite_alpha or o.sprite_alpha
   o.sprite_flip = particle_data.sprite_flip or o.sprite_flip
 
+  if particle_data.light ~= nil then
+    o.light = CreateLight(o.pos.x,o.pos.y,particle_data.light)
+    o.max_light = particle_data.light
+    o.min_light = particle_data.min_light or 0
+  end
+
   o.animation_active = particle_data.animation_active or false
 
   o.time = 0.5
@@ -40,7 +46,17 @@ Particle = Entity:New(x,y)
  	return o
  end
 
+function Particle:Smart()
+  if self.light ~= nil then
+    self.light.pos.x = self.pos.x-self.target_offset.x
+    self.light.pos.y = self.pos.y-self.target_offset.y
+  end
+end
+
 function Particle:Kill()
+  if self.light ~= nil then
+    KillLight(self.light)
+  end
 	if self.id ~= nil then
 		for _, e in pairs(LoadedParticles) do
 			if e.id > self.id then
@@ -56,15 +72,18 @@ function Particle:HandleAnimation()
   self.body:Animate()
   self.timer = self.timer + current_dt
   self.sprite_alpha = (self.time-self.timer)/self.time
+  if self.light ~= nil then
+    self.light.range = math.max(self.min_light,self.sprite_alpha*self.max_light)
+  end
   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
+    self.pos.x = self.pos.x + self.vel.x * self.sprite_alpha
   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
+    self.pos.y = self.pos.y + self.vel.y * self.sprite_alpha
   end
 end

data/scripts/entities/player.lua

@@ -165,6 +165,14 @@ function Player:HandleAnimation()
 	if self.move_x ~= 0 then self.sprite_flip.x = math.sign(self.move_x) end
 
 	-- animation priority
+  if self.dashTimer > 0 then
+    self.body:Switch(false)
+    self.mask:Switch(false)
+  else
+    self.body:Switch(true)
+    self.mask:Switch(true)
+  end
+
   if self.vel.y > 1.25 then
 		self.body = self.body:ChangeTo(animation.nancy.fall)
 		self.mask = self.mask:ChangeTo(self.maskType.fall)

data/scripts/entity.lua

@@ -32,6 +32,11 @@ function Entity:Smart()
 end
 
 function Entity:Kill()
+	-- remove attached lights
+	if self.light ~= nil then
+		KillLight(self.light)
+	end
+	-- remove self
 	if self.id ~= nil then
 		for _, e in pairs(LoadedEntities) do
 			if e.id > self.id then

data/scripts/lights.lua

@@ -18,11 +18,24 @@ function CreateLight(x,y,range,lum,flicker)
 	o.dim = 0
 	o.flicker_speed = flicker_speed or 60/12
 	o.flicker_time = 0
-	table.insert(Lights,o)
 
+	table.insert(Lights,o)
+	o.id = #Lights
 	return o
 end
 
+function KillLight(light)
+	if light.id ~= nil then
+		for _, e in pairs(Lights) do
+			if e.id > light.id then
+				e.id = e.id - 1
+			end
+		end
+		table.remove(Lights,light.id)
+	end
+	light = nil
+end
+
 function SetDarkness()
 	love.graphics.setColor(0,0,0,1)
 	love.graphics.rectangle("fill",0,0,game.width	,game.height)