add animated sprites

src/states/main.lua

@@ -20,8 +20,8 @@ function MainState:enter(_, host_socket)
 	local systems = {
 		require("systems.physics"),
 		require("systems.map"),
-		require("systems.player"),
 		require("systems.sprite"),
+		require("systems.player"),
 		require("systems.screen-scaler")
 	}
 

src/systems/debug.lua

@@ -4,7 +4,7 @@ local rgb = require("helpers.rgb")
 local DRAW_GRID = false
 local GRID_COLOR = rgb(30, 30, 30)
 
-local DRAW_COLLIDERS = false
+local DRAW_COLLIDERS = true
 local COLLIDER_COLOR = rgb(200, 20, 200)
 
 function Debug:drawColliders()

src/systems/physics.lua

@@ -2,8 +2,7 @@ local Physics = {}
 local bump = require("lib.bump")
 local Vec = require("lib.brinevector")
 
--- TODO: Tweak bump world `cellSize` at runtime,
--- when the map switches
+-- TODO: Tweak bump world `cellSize` at runtime, when the map switches
 
 function Physics:init()
 	self.bump = bump.newWorld()

src/systems/player.lua

@@ -99,6 +99,12 @@ function Player:update(dt)
 				e.bolt_count = e.bolt_count + 1
 			end
 		end
+
+		if e.acc.x ~= 0 or e.acc.y ~= 0 then
+			e.sprite.variant = "walk"
+		else
+			e.sprite.variant = "idle"
+		end
 	end
 end
 
@@ -142,7 +148,7 @@ function Player:spawnPlayer()
 		bolt_speed = 2000,
 		bolt_cooldown = 0.2,
 		bolt_friction = 0.98,
-		collider = {-6, -6, 6, 6}
+		collider = {-5, -5, 4, 8}
 	}
 end
 

src/systems/sprite.lua

@@ -22,12 +22,12 @@ local function loadAsepriteSprite(path)
 	for _, frame in ipairs(ase.header.frames) do
 		for _, chunk in ipairs(frame.chunks) do
 			if chunk.type == FRAME_DATA_CHUNK then
-				print("frame data")
 				local cel = chunk.data
 				local buffer = love.data.decompress("data", "zlib", cel.data)
 				local data = love.image.newImageData(cel.width, cel.height, "rgba8", buffer)
 				local image = love.graphics.newImage(data)
 				local canvas = love.graphics.newCanvas(sprite.width, sprite.height)
+				canvas:setFilter("nearest")
 
 				-- you need to draw in a canvas before.
 				-- frame images can be of different sizes
@@ -58,8 +58,17 @@ local function loadAsepriteSprite(path)
 		end
 	end
 
-	pprint(tags)
-	pprint(frames)
+	for _, tag in pairs(tags) do
+		local variant = {}
+		sprite.variants[tag.name] = variant
+		for i=tag.from,tag.to do
+			table.insert(variant, frames[i])
+		end
+	end
+
+	if not sprite.variants.default then
+		sprite.variants.default = {frames[0]}
+	end
 
 	return sprite
 end
@@ -71,10 +80,40 @@ function Sprite:addToWorld(group, e)
 	if group ~= "sprite" then return end
 end
 
-function Sprite:draw()
+function Sprite:update(dt)
 	for _, e in ipairs(self.pool.groups.sprite.entities) do
-		love.graphics.setColor(1, 1, 1)
-		love.graphics.circle("fill", e.pos.x, e.pos.y, 10)
+		if e.sprite.name and all_sprites[e.sprite.name] then
+			local spritesheet = all_sprites[e.sprite.name]
+			local variant = spritesheet.variants[e.sprite.variant or "default"]
+			e.sprite.timer = (e.sprite.timer or 0) + dt
+
+			if variant then
+				if e.sprite.timer > 0.1 then
+					e.sprite.timer = e.sprite.timer % 0.1
+					e.sprite.frame = (e.sprite.frame or 1)  % #variant + 1
+				end
+			end
+		end
+	end
+end
+
+function Sprite:draw()
+	love.graphics.setColor(1, 1, 1)
+	for _, e in ipairs(self.pool.groups.sprite.entities) do
+		local spritesheet = all_sprites[e.sprite.name]
+		if spritesheet then
+			if e.sprite.variant ~= e.sprite.last_variant then
+				e.sprite.frame = 1
+			end
+			local variant = spritesheet.variants[e.sprite.variant or "default"]
+			if variant then
+				local frame = variant[e.sprite.frame]
+				love.graphics.draw(frame.image, e.pos.x-spritesheet.width/2, e.pos.y-spritesheet.height/2)
+			end
+				e.sprite.last_variant = e.sprite.variant
+		else
+			love.graphics.circle("fill", e.pos.x, e.pos.y, 10)
+		end
 	end
 end