Rehandled Darkness and Lights. Refactored lots of stuff. Rewritten shaders.

code/collision.lua

@@ -1,4 +1,10 @@
 Collision = {}
+
+LoadedObjects.Collisions = {}
+LoadedObjects.Platforms = {}
+LoadedObjects.Ladders = {}
+LoadedObjects.Hazards = {}
+
 --[[
 	Collision
 

code/darkness.lua

@@ -0,0 +1,44 @@
+Darkness = {}
+Canvas = {}
+
+function Darkness.Create()
+	Darkness.width = game.width/game.scale
+	Darkness.height = game.height/game.scale
+	Canvas.Darkness = love.graphics.newCanvas(
+		Darkness.width,
+		Darkness.height
+	)
+end
+
+function Darkness.Recreate()
+	Canvas.Darkness:release()
+	Darkness.Create()
+end
+
+function Darkness.Reset()
+	love.graphics.setCanvas(Canvas.Darkness)
+  love.graphics.setBlendMode("replace")
+	love.graphics.setColor(0.1,0.1,0.1,1)
+	love.graphics.rectangle(
+		"fill",
+		0,
+		0,
+		Darkness.width,
+		Darkness.height
+	)
+	love.graphics.setCanvas()
+end
+
+function Darkness.DrawStart()
+	Darkness.Reset()
+	love.graphics.setCanvas(Canvas.Darkness)
+end
+
+function Darkness.DrawEnd()
+	love.graphics.setCanvas()
+	love.graphics.setBlendMode("alpha")
+  love.graphics.setColor(1,1,1,1)
+	love.graphics.draw(Canvas.Darkness)
+end
+
+Darkness.Create()

code/debug.lua

@@ -1,6 +1,6 @@
 function DebugUI()
 	local mouse_x, mouse_y = love.mouse.getPosition()
-	for _, light in pairs(Lights) do
+	for _, light in pairs(LoadedObjects.Lights) do
 		love.graphics.print(light.pos.x,light.pos.x,light.pos.y)
 		love.graphics.print(light.pos.y,light.pos.x,light.pos.y+20)
 		love.graphics.print(light.pos.x,light.pos.x,light.pos.y+40)

code/entities/cursed_book.lua

@@ -27,7 +27,7 @@ CursedBook = Entity:New(x,y)
 
   -- light
   o.light_range = 500
-  o.light = CreateLight(o.pos.x,o.pos.y,o.light_range,2,HEX2RGB("#fe00d1"))
+  o.light = Light:New(o.pos.x,o.pos.y,o.light_range,2,HEX2RGB("#fe00d1"))
 
   table.insert(LoadedObjects.Entities,o)
   o.id = #LoadedObjects.Entities

code/entities/decoration.lua

@@ -14,7 +14,7 @@ function Decoration:New(x,y,animation,lightRange)
 
   if lightRange ~= nil then
     o.lightRange = lightRange
-    o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
+    o.light = Light:New(o.pos.x,o.pos.y,o.lightRange)
   end
 
   table.insert(LoadedObjects.Entities,o)

code/entities/fairy.lua

@@ -20,7 +20,7 @@ Fairy = Entity:New(x,y)
 
   -- light
   o.light_range = 80
-  o.light = CreateLight(o.pos.x,o.pos.y,o.light_range,nil,HEX2RGB("#fed100"))
+  o.light = Light:New(o.pos.x,o.pos.y,o.light_range,nil,HEX2RGB("#fed100"))
 
   -- timer
   o.particle_timer = 0

code/entities/hook_anchor.lua

@@ -27,6 +27,8 @@ function HookAnchor:HandleAnimation()
 end
 
 function HookAnchor:DrawBackground()
+  Entity.DrawBackground(self)
+  love.graphics.setColor(1,1,1,1)
   love.graphics.circle(
     "line",
     -Camera.pos.x + self.pos.x,

code/entities/kupo.lua

@@ -28,7 +28,7 @@ Kupo = Entity:New(x,y)
   o.hostile = true
 
   o.lightRange = o.range/2
-	o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
+	o.light = Light:New(o.pos.x,o.pos.y,o.lightRange)
 
   table.insert(LoadedObjects.Entities,o)
   o.id = #LoadedObjects.Entities

code/entities/particle.lua

@@ -1,4 +1,5 @@
 Particle = Entity:New(x,y)
+LoadedObjects.Particles = {}
 
  function Particle:New(x,y,particle_data)
  	local o = Entity:New(x,y)
@@ -31,7 +32,7 @@ Particle = Entity:New(x,y)
     o.lightRange = particle_data.light
     local flicker = particle_data.light_flicker or nil
     local color = particle_data.light_color or nil
-    o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange,flicker,color)
+    o.light = Light:New(o.pos.x,o.pos.y,o.lightRange,flicker,color)
   end
 
   -- animations
@@ -44,8 +45,8 @@ Particle = Entity:New(x,y)
     end
   end
 
-  table.insert(LoadedParticles,o)
-  o.id = #LoadedParticles
+  table.insert(LoadedObjects.Particles,o)
+  o.id = #LoadedObjects.Particles
 
  	setmetatable(o, self)
  	self.__index = self

code/entities/player.lua

@@ -40,7 +40,7 @@
   	to = {x = 8, y = 0} -- gameworld pixels
   }
 
- 	o.lightRange = 10 -- screen pixels
+ 	o.lightRange = 40 -- screen pixels
 
  	-- status
   o.isDashing = false
@@ -66,7 +66,7 @@
   o:getBoundingBox(o.body,0,3,-1,-3)
 
   -- lights
-	o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
+	o.light = Light:New(o.pos.x,o.pos.y,o.lightRange)
 
   table.insert(LoadedObjects.Entities,o)
   o.id = #LoadedObjects.Entities

code/entity.lua

@@ -1,4 +1,5 @@
 Entity = {class = "Entity"}
+LoadedObjects.Entities = {}
 
 function Entity:New(x,y)
 	o = {}
@@ -250,7 +251,9 @@ function Entity:Debug()
 end
 
 function Entity:DrawBackground()
+
 end
+
 require "code/entities/kupo"
 require "code/entities/arrow"
 require "code/entities/decoration"

code/game.lua

@@ -9,7 +9,7 @@ function GameStep()
     end
   end
 
-  for _, particle in pairs(LoadedParticles) do
+  for _, particle in pairs(LoadedObjects.Particles) do
     particle:DoPhysics()
   end
   for _, enty in pairs(LoadedObjects.Entities) do
@@ -68,19 +68,21 @@ function GameDraw()
 
   -- prepare
   GameworldDrawPrepare()
+  GameWorldUpdateLights()
 
   -- background
   GameworldDrawBackground()
+  GameworldDrawLights()
   GameworldDrawEntitiesBackground()
 
   -- foreground
   GameworldDrawForeground()
-  if LevelData.properties.darkness then
-    GameworldDrawLighting()
-  end
   GameworldDrawParticles()
   GameworldDrawEntities()
 
+  if LevelData.properties.darkness then
+    GameworldDrawDarkness()
+  end
   -- end
   GameworldDrawEnd()
 

code/gameworld.lua

@@ -2,6 +2,7 @@ function GameworldDrawPrepare()
   if game_resize then
     Camera.height = game.height
     Camera.width = game.width
+    Darkness.Recreate()
   end
   pcr, pcg, pcb, pca = love.graphics.getColor()
 	love.graphics.scale(game.scale,game.scale)
@@ -72,24 +73,53 @@ function GameworldDrawForeground()
 	end
 end
 
-function GameworldDrawLighting()
-  if game_resize then
-    Canvas.Darkness:release()
-    Canvas.Darkness = CreateDarkness()
-    love.graphics.setCanvas(Canvas.Darkness)
-    SetDarkness()
-    love.graphics.setCanvas()
+function GameworldDrawDarkness()
+  Darkness.Reset()
+  Darkness.DrawStart()
+  love.graphics.setBlendMode("replace")
+  love.graphics.setColor(0,0,0,0)
+  for _, light in pairs(LoadedObjects.Lights) do
+  	if light.range ~= 0 then
+  		local position = {
+  			x = (light.pos.x - Camera.pos.x) / game.scale,
+  			y = (light.pos.y - Camera.pos.y) / game.scale
+  		}
+  		local range = (light.range + light.flicker) / game.scale
+  		love.graphics.circle(
+  				"fill",
+  				position.x,
+  				position.y,
+  				range
+  			)
+  	end
+  end
+  Darkness.DrawEnd()
+end
+
+function GameworldDrawLights()
+  for _, light in pairs(LoadedObjects.Lights) do
+  	if light.range ~= 0 then
+      love.graphics.setColor(light.color[1],light.color[2],light.color[3],1)
+
+      Shader.RadiusGradient:send("pos_x",- Camera.pos.x + light.pos.x)
+      Shader.RadiusGradient:send("pos_y",- Camera.pos.y + light.pos.y)
+      Shader.RadiusGradient:send("range",light.range)
+      Shader.RadiusGradient:send("scale",game.scale)
+
+      love.graphics.setShader(Shader.RadiusGradient)
+  		love.graphics.circle(
+  			"fill",
+  			- Camera.pos.x + light.pos.x,
+  			- Camera.pos.y + light.pos.y,
+  			light.range
+  		)
+      love.graphics.setShader()
+  	end
+  end
+end
+
+function GameWorldUpdateLights()
+  for _, light in pairs(LoadedObjects.Lights) do
+    light:Flicker()
   end
-
-  -- work on lighting canvas
-	love.graphics.setCanvas(Canvas.Darkness)
-	SetDarkness()
-	DoLights()
-	DoBorder()
-  -- apply to game canvas
-	love.graphics.setColor(1,1,1,1)
-	love.graphics.scale(game.scale,game.scale)
-	love.graphics.setCanvas()
-	DrawDarkness()
-	love.graphics.scale(1/game.scale,1/game.scale)
 end

code/lights.lua

@@ -1,11 +1,7 @@
-Lights = {}
-LightTimer = 0
+Light = {}
+LoadedObjects.Lights = {}
 
-function CreateDarkness()
-	return love.graphics.newCanvas(game.width/game.scale, game.height/game.scale)
-end
-
-function CreateLight(x,y,range,flicker,color,lum)
+function Light:New(x,y,range,flicker,color,lum)
 	local o = {}
 	o.pos = {
 		x = x,
@@ -17,117 +13,35 @@ function CreateLight(x,y,range,flicker,color,lum)
 	o.flicker_value = flicker or 2
 	o.flicker = 0
 	o.dim = 0
-	o.flicker_speed = flicker_speed or 60/12
-	o.flicker_time = 0
+	o.flicker_time = 60/12
+	o.flicker_timer = 0
 
-	table.insert(Lights,o)
-	o.id = #Lights
+	table.insert(LoadedObjects.Lights,o)
+	o.id = #LoadedObjects.Lights
+
+	setmetatable(o, self)
+	self.__index = self
 	return o
 end
 
-function KillLight(light)
-	if light.id ~= nil then
-		for _, e in pairs(Lights) do
-			if e.id > light.id then
+function Light:Kill()
+	if self.id ~= nil then
+		for _, e in pairs(LoadedObjects.Lights) do
+			if e.id > self.id then
 				e.id = e.id - 1
 			end
 		end
-		table.remove(Lights,light.id)
+		table.remove(LoadedObjects.Lights,self.id)
 	end
-	light = nil
+	self = nil
 end
 
-function SetDarkness()
-	love.graphics.setCanvas(Canvas.Darkness)
+function Light:Flicker()
+	self.flicker_timer = self.flicker_timer + 1
 
-	love.graphics.setColor(0,0,0,1)
-	love.graphics.rectangle("fill",0,0,game.width	,game.height)
-
-	love.graphics.setCanvas()
-end
-
-function DoLights()
-
-	love.graphics.setCanvas(Canvas.Darkness)
-
-	for _, light in pairs(Lights) do
-	light.flicker_time = light.flicker_time + 1
-
-	if light.flicker_time >= light.flicker_speed then
-		light.flicker_time = light.flicker_time - light.flicker_speed
-			light.flicker = 0 + math.random(0,1)
-			light.flicker = math.min(math.max(light.flicker, -light.flicker_value),light.flicker_value)
-		end
+	if self.flicker_timer >= self.flicker_time then
+		self.flicker_timer = self.flicker_timer - self.flicker_time
+		self.flicker = math.random(0,1)
+		self.flicker = math.min(math.max(self.flicker, -self.flicker_value), self.flicker_value)
 	end
-
-	love.graphics.setBlendMode("replace")
-	for _, light in pairs(Lights) do
-		if light.range ~= 0 then
-			love.graphics.setColor(light.color[1],light.color[2],light.color[3],1)
-			local position = {
-				x = (light.pos.x - Camera.pos.x) / game.scale,
-				y = (light.pos.y - Camera.pos.y) / game.scale
-			}
-			local range = (1 + light.range + light.flicker) / game.scale
-			love.graphics.circle(
-				"fill",
-				position.x,
-				position.y,
-				range
-			)
-		end
-	end
-	love.graphics.setColor(0,0,0,0)
-	for _, light in pairs(Lights) do
-		if light.range ~= 0 then
-			local position = {
-				x = (light.pos.x - Camera.pos.x) / game.scale,
-				y = (light.pos.y - Camera.pos.y) / game.scale
-			}
-			local range = (light.range + light.flicker) / game.scale
-			love.graphics.circle(
-					"fill",
-					position.x,
-					position.y,
-					range
-				)
-		end
-	end
-
-	love.graphics.setBlendMode("alpha")
-	love.graphics.setColor(0,0,0,1)
-	Shaders.InsideLight:send("game_scale", game.scale)
-
-	for _, light in pairs(Lights) do
-		if light.range ~= 0 then
-			local position = {
-				x = (light.pos.x - Camera.pos.x) / game.scale,
-				y = (light.pos.y - Camera.pos.y) / game.scale
-			}
-			local range = (light.range + light.flicker) / game.scale
-			Shaders.InsideLight:send("light_color", light.color)
-			Shaders.InsideLight:send("light_pos", {position.x*game.scale, position.y*game.scale})
-			Shaders.InsideLight:send("range", range)
-			love.graphics.setShader(Shaders.InsideLight)
-			love.graphics.circle(
-				"fill",
-				position.x,
-				position.y,
-				range
-			)
-			love.graphics.setShader()
-		end
-	end
-
-	love.graphics.setCanvas()
-
-end
-
-function DoBorder()
-	love.graphics.setCanvas(Canvas.Darkness)
-	love.graphics.setCanvas()
-end
-
-function DrawDarkness()
-	love.graphics.draw(Canvas.Darkness, 0, 0, 0, 1/game.scale)
 end

code/objects.lua

@@ -1,11 +1,4 @@
-LoadedObjects = {
-	Entities = {},
-
-	Collisions = {},
-	Platforms = {},
-	Ladders = {},
-	Hazards = {}
-}
+LoadedObjects = {}
 
 -- level functions
 function LoadedObjects.DrawCollisions()

code/require.lua

@@ -12,16 +12,19 @@ require "code/hex"
 require "code/in_out"
 
 -- classes
-require "code/audio"
-require "code/entity"
-require "code/animation"
-require "code/collision"
+require "code/objects"
 require "code/level"
 require "code/camera"
+require "code/animation"
+require "code/audio"
+
+-- objects
+require "code/entity"
+require "code/collision"
 require "code/lights"
-require "code/objects"
 
 -- functions
+require "code/darkness"
 require "code/debug"
 require "code/demo"
 require "code/keybind"

data/levels/level1.lua

@@ -2,7 +2,7 @@ return {
 	name = "test",
 	tileset = tileset.library,
 	properties = {
- 		darkness = false
+ 		darkness = true
 	},
 	tiles = {
 		{ 1, 4, 0, 0, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},

data/shaders.lua

@@ -1,52 +1,23 @@
-Shaders = {}
-Shaders.InsideLight = love.graphics.newShader[[
-  uniform vec2 light_pos;
-  uniform vec3 light_color;
+Shader = {}
+Shader.RadiusGradient = love.graphics.newShader[[
+  uniform float pos_x;
+  uniform float pos_y;
   uniform float range;
-  uniform float game_scale;
+  uniform float scale;
 
   vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords ){
 
     vec4 pixel = Texel(texture, texture_coords );//This is the current pixel color
 
-    float distance_x = light_pos.x - screen_coords.x;
-    float distance_y = light_pos.y - screen_coords.y;
-    float distance = sqrt( pow(distance_x,2) + pow(distance_y,2) ) / game_scale;
+    float distance_x = pos_x - screen_coords.x / scale;
+    float distance_y = pos_y - screen_coords.y / scale;
+    float distance = sqrt( pow(distance_x,2) + pow(distance_y,2) ) ;
     if (distance < range){
-      float alpha = 1-(distance/10);
-      pixel.a = alpha;
-      if (color.r<light_color.r){
-        color.r = light_color.r;
-      }
-      if (color.g<light_color.g){
-        color.g = light_color.g;
-      }
-      if (color.b<light_color.b){
-        color.b = light_color.b;
-      }
-    }
-    return pixel * color;
-  }
-]]
-
-Shaders.OutsideDark = love.graphics.newShader[[
-  uniform vec2 light_pos;
-  uniform float range;
-  uniform float game_scale;
-
-  vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords ){
-
-    vec4 pixel = Texel(texture, texture_coords );//This is the current pixel color
-
-    float distance_x = light_pos.x - screen_coords.x;
-    float distance_y = light_pos.y - screen_coords.y;
-    float distance = sqrt( pow(distance_x,2) + pow(distance_y,2) ) / game_scale;
-    if (distance < range){
-      float alpha = (distance/range);
+      float alpha = 1-(2*distance/range);
       if (pixel.a > alpha){
         pixel.a = alpha;
       }
     }
-    return pixel * color;
+    return pixel * color * color;
   }
 ]]

main.lua

@@ -22,20 +22,15 @@ function love.load()
 	game = {
 		scale = 2,
 		width = love.graphics.getWidth(),
-		height = love.graphics.getHeight(),
-		paused = false
+		height = love.graphics.getHeight()
 	}
 
 	require "code/require"
 
 	logPrint(loveInitLog)
 	loveInitLog = nil
-	Canvas = {
-		Darkness = CreateDarkness()
-	}
-	love.graphics.setCanvas(Canvas.Darkness)
-	SetDarkness()
-	love.graphics.setCanvas()
+	Canvas = {}
+	Darkness.Create()
 
 	Camera.width = game.width
 	Camera.height = game.height