Lighting system

data/scripts.lua

@@ -11,6 +11,7 @@ require "data/scripts/collision"
 require "data/scripts/level"
 -- data
 require "data/scripts/camera"
+require "data/scripts/lights"
 require "data/scripts/objects"
 -- UI functions
 require "data/scripts/debug"

data/scripts/debug.lua

@@ -1,4 +1,11 @@
 function DebugUI()
+
+for _, light in pairs(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)
+end	
+	
 love.graphics.print("time: "..fps_total..", fps: "..fps_draw..", frametime: "..math.floor(current_dt* 1000).."ms", 10*textScale, 0*textScale, 0, textScale)
 
     love.graphics.setColor(1,1,1)

data/scripts/entities/kupo.lua

@@ -19,6 +19,10 @@ Kupo = Entity:New(x,y)
   o.bow_frames = 6
   o.bow_extraframes = 18
 	o.bow_aim_frames = 8
+  	
+  	o.lightRange = o.range
+	o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
+  	
  	setmetatable(o, self)
  	self.__index = self
 

data/scripts/entities/player.lua

@@ -11,6 +11,7 @@
  		x = 0,
  		y = 0
  	}
+ 	
  	-- constants
    	o.acc = 45
  	o.friction = 20
@@ -20,7 +21,9 @@
  	o.maxSpeed = 600
  	o.jumpMaxSpeed = 9.5
  	o.zeroSpeed = 0.001
- 	-- bools
+ 	o.lightRange = 20
+ 	
+ 	-- status
  	o.isJumping = false
  	o.isOnGround = 0
  	o.coyoteValue = 5
@@ -31,7 +34,12 @@
 
    	-- sprite
  	o.sprite_offset = {x = 8, y = 16}
-  o.target_offset = {x = 4, y = 12}
+  	o.target_offset = {x = 0, y = 12}
+  	
+  	-- lights
+  	o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
+  	
+  	
  	setmetatable(o, self)
  	self.__index = self
 
@@ -78,6 +86,9 @@ function Player:Smart()
 end
 
 function Player:HandleAnimation()
+	-- move light to position, :D
+	self.light.pos.x = self.pos.x - self.target_offset.x 
+	self.light.pos.y = self.pos.y - self.target_offset.y
 	
 	-- flip sprite to look in the direction is moving
 	if self.vel.x ~= 0 then self.sprite_flip.x = math.sign(self.vel.x) end

data/scripts/lights.lua

@@ -0,0 +1,65 @@
+Lights = {}
+LightTimer = 0
+
+function CreateDarkness()
+	return love.graphics.newCanvas(game.width/2, game.height/2)
+end
+
+function CreateLight(x,y,range)
+	local o = {}
+	o.pos = {
+		x = x,
+		y = y
+	}
+	o.range = range
+	o.flicker = 0
+	table.insert(Lights,o)
+	return o
+end
+
+function DoDarkness()
+	love.graphics.setColor(0,0,0)
+	love.graphics.rectangle("fill",0,0,game.width,game.height)
+end
+
+function DoLights()
+	LightTimer = LightTimer + 1
+	
+	if LightTimer >= 3 then
+		LightTimer = LightTimer - 3
+		for _, light in pairs(Lights) do
+			light.flicker = math.random(-1,1)
+		end	
+	end
+	
+	love.graphics.setBlendMode("replace")
+	-- first, border
+	love.graphics.setColor(1,1,1)
+	for _, light in pairs(Lights) do
+		
+		love.graphics.circle(
+			"fill", 
+			light.pos.x - Camera.pos.x,
+			light.pos.y - Camera.pos.y,
+			light.range + light.flicker + 1
+		)		
+	end	
+	love.graphics.setColor(0,0,0,0)
+	-- then, light
+	for _, light in pairs(Lights) do	
+		love.graphics.circle(
+			"fill", 
+			light.pos.x - Camera.pos.x,
+			light.pos.y - Camera.pos.y,
+			light.range + light.flicker
+		)			
+	end
+	love.graphics.setBlendMode("alpha")
+end
+
+function DoBorder()
+end
+
+function DrawDarkness()
+	love.graphics.draw(Canvas.Darkness, 0, 0, 0, 1, 1)
+end

main.lua

@@ -17,13 +17,16 @@ function love.load()
 		paused = false
 	}
 	require "data/scripts"
+	Canvas = {
+		Darkness = CreateDarkness()
+	}
 	Camera.width = game.width
 	Camera.height = game.height
 	levelList = {"level1","2","3","ewae","tileset"}
 	levelNum = 1
 	currLevel = levelList[levelNum]
 	LevelLoadTiles()
-	main_Player = Player:New(1220,220)
+	main_Player = Player:New(0,20)
 	LoadedEntities = {}
 	table.insert(LoadedEntities,main_Player)
 	table.insert(LoadedEntities,Kupo:New(450,100))
@@ -45,10 +48,15 @@ function love.update(dt)
 	current_dt = dt
 
 	-- saveproof to game resize
+	if game.width ~= love.graphics.getWidth() or game.height ~= love.graphics.getHeight() then
 		game.width = love.graphics.getWidth()
 		game.height = love.graphics.getHeight()
   		Camera.height = game.height
 		Camera.width = game.width
+		Canvas.Darkness:release()
+		Canvas.Darkness = CreateDarkness()
+	end
+	
 	-- GAME STEP
 	if not do_pause then
 		SetCollisionFlags(main_Player)
@@ -104,6 +112,7 @@ end
 function love.draw()
 	-- GAME WORLD
 	love.graphics.scale(game.scale,game.scale)
+	love.graphics.setColor(1,1,1,1)
 	LevelDisplayBackground()
 	for _, enty in pairs(LoadedEntities) do
 		enty:HandleAnimation()
@@ -115,14 +124,19 @@ function love.draw()
 	-- Save color
 	local pcr, pcg, pcb, pca = love.graphics.getColor()
 	
-	-- HUD
+	love.graphics.setCanvas(Canvas.Darkness)
+	DoDarkness()
+	DoLights()
+	DoBorder()
+
+	-- reset to screen
+	love.graphics.setColor(1,1,1,1)
+	love.graphics.setCanvas()
 	love.graphics.scale(1,1)
+	DrawDarkness()	
+	-- HUD
 	-- Scale control
-	if game.height > game.width then
-		textScale = game.height/480/2
-	else
-		textScale = game.width/640/2
-	end
+	textScale = 0.5
 	
 	--debug
 	if debug then DebugUI() end

to_do.txt

@@ -0,0 +1,15 @@
+MAKE LIGHTING SYSTEM
+  Updates:
+   LOVE HAS CANVASES!!!
+   
+MAKE ARROW CANVAS SO THAT ARROWS WHEN STUCK CAN BE STORED AS IMAGE AND ARE NOT LAGGY!!!
+
+DRAW GIANT ANIMALS AS POWER SOURCE
+
+DO FAIRY
+
+DO FLIES
+
+DO DAMAGE TO PLAYER
+
+DO UI