Progress life indicator

assets/scripts/game.lua

@@ -3,6 +3,8 @@ local game = {}
 function game.load()
 	-- Configuration
 	math.randomseed(os.time())
+	PADDING = 50
+	game.lifes = 3
 	local width, height = love.window.getDesktopDimensions( display )
 	game.window = { width = width , height = height }
 	game.canvas = { width = width, height = 2880 }

assets/scripts/gui/controls.lua

@@ -3,21 +3,20 @@ local controls = {}
 local BUTTONS = {}
 
 function controls.load(game)
-	local padding = 50
 	-- Button left
-  	local img_button_left = love.graphics.newImage('assets/sprites/hui/button_left.png')
-	local left_x = padding
-	local left_y = (game.window.height / 3 * 2) - img_button_left:getHeight() - padding
+  	local img_button_left = love.graphics.newImage('assets/sprites/gui/button_left.png')
+	local left_x = PADDING
+	local left_y = (game.window.height / 3 * 2) - img_button_left:getHeight() - PADDING
 	controls.new_button('button_left', left_x, left_y, img_button_left)
 	-- Button right
-  	local img_button_right = love.graphics.newImage('assets/sprites/hui/button_right.png')
-	local right_x = game.window.width - (img_button_right:getWidth() / 2) - padding
-	local right_y = (game.window.height / 3 * 2) - img_button_right:getHeight() - padding
+  	local img_button_right = love.graphics.newImage('assets/sprites/gui/button_right.png')
+	local right_x = game.window.width - (img_button_right:getWidth() / 2) - PADDING
+	local right_y = (game.window.height / 3 * 2) - img_button_right:getHeight() - PADDING
 	controls.new_button('button_right', right_x, right_y, img_button_right)
 	-- Button up
-	local img_button_up = love.graphics.newImage('assets/sprites/hui/button_up.png')
-	local up_x = game.window.width - (img_button_up:getWidth() / 2) - padding
-	local up_y = (game.window.height / 3) - img_button_up:getHeight() - padding
+	local img_button_up = love.graphics.newImage('assets/sprites/gui/button_up.png')
+	local up_x = game.window.width - (img_button_up:getWidth() / 2) - PADDING
+	local up_y = (game.window.height / 3) - img_button_up:getHeight() - PADDING
 	controls.new_button('button_up', up_x, up_y, img_button_up)
 end
 

assets/scripts/gui/life.lua

@@ -0,0 +1,59 @@
+local anim8 = require 'assets/scripts/vendor/anim8'
+local tools = require 'assets/scripts/tools'
+
+local life = {}
+
+function life.load(game)
+	local PADDING = 50
+	-- Up
+  	life.top = {
+  		x = PADDING,
+  		y = PADDING, 
+  		img = love.graphics.newImage('assets/sprites/gui/life_top.png'),
+  		num_frames = 2
+  	}
+  	g = anim8.newGrid(life.top.img:getWidth() / life.top.num_frames, life.top.img:getHeight(), life.top.img:getWidth(), life.top.img:getHeight())
+  	life.top.animation = anim8.newAnimation(g('1-' .. life.top.num_frames, 1), 1)
+  	life.top.animation:gotoFrame(1)
+  	life.top.animation:pause()
+  	-- Down
+  	life.down = {
+  		img = love.graphics.newImage('assets/sprites/gui/life_down.png'),
+  		x = PADDING,
+  		y = life.top.y + life.top.img:getHeight()
+  	}
+  	-- Indicator
+  	life.indicator = {
+  		x_shaft = life.down.x + (life.down.img:getWidth() / 2),
+		y_shaft = life.down.y + (life.down.img:getHeight() / 2),
+		x_target = life.top.x + (life.top.img:getWidth() / 2 / life.top.num_frames),
+		y_target = life.top.y + (life.top.img:getHeight() / 2),
+		width = 10,
+		color = {0, 0, 0},
+		angle = 230,
+		move_up = false
+  	}
+  	life.indicator.radius = tools.distance(life.indicator.x_shaft, life.indicator.y_shaft, life.indicator.x_target, life.indicator.y_target)
+  	love.graphics.setLineWidth(life.indicator.width)
+end
+
+function life.update(dt, game)
+	life.top.animation:update(dt) 
+	-- 1 230 240
+	if game.life == 3 then
+	end	
+  	life.indicator.x_target, life.indicator.y_target = tools.circle_position(life.indicator.angle, life.indicator.radius, life.indicator.x_shaft, life.indicator.y_shaft)
+end
+
+function life.draw()
+	-- Background top
+	life.top.animation:draw(life.top.img, life.top.x, life.top.y)
+	-- Indicator
+  	love.graphics.setColor(life.indicator.color)
+	love.graphics.line(life.indicator.x_shaft, life.indicator.y_shaft, life.indicator.x_target, life.indicator.y_target)
+  	love.graphics.setColor(255, 255, 255)
+	-- Background down
+	love.graphics.draw(life.down.img, life.down.x, life.down.y)
+end
+
+return life

assets/scripts/tools.lua

@@ -71,4 +71,15 @@ function tools.print_r(t)
     print()
 end
 
+function tools.distance(x1, y1, x2, y2)
+  local dx = x1 - x2
+  local dy = y1 - y2
+  return math.sqrt ( dx * dx + dy * dy )
+end
+
+function tools.circle_position(angle, radius, x_center, y_center)
+    local angle_temp = angle * math.pi / 180
+    return x_center + radius * math.cos(angle_temp), y_center + radius * math.sin(angle_temp)
+end
+
 return tools