2 files changed, 81 insertions, 9 deletions
diff --git a/src/objs/player.lua b/src/objs/player.lua
index 84e42f0..7812486 100644
--- a/src/objs/player.lua
+++ b/src/objs/player.lua
@@ -5,7 +5,12 @@ local PLAYER_JUMP_FORCE = 350
 local PLAYER_DASH_TIMER = 0.15
 local PLAYER_DASH_COOLDOWN = 0.5
 
-register_comp("Player", TAGCOMP)
+local COYOTE = 0.1
+
+register_comp("Player", function(player)
+  player.jump_input_timer = 0
+  player.grounded_timer = 0
+end)
 
 local function player_normal_state_init(state)
   state.dash_cooldown = 0
@@ -31,14 +36,13 @@ local function player_normal_state_update(player, state, dt)
     player.sprite:set_tag("idle")
   end
 
-  if player.box:touching_down() then
-    if is_input_just_pressed("Jump") then
+  if player.grounded_timer > 0 then
+    if player.jump_input_timer > 0 then
       player.vy = -PLAYER_JUMP_FORCE
     end
-  else
-    if is_input_just_released("Jump") and player.vy < -100 then
-      player.vy = -100
-    end
+  end
+  if not is_input_pressed("Jump") and player.vy < -100 then
+    player.vy = -100
   end
 
   if state.dash_cooldown <= 0 and is_input_just_pressed("Dash") then
@@ -75,6 +79,16 @@ function player_update_sys(player, dt)
   if player.vx ~= 0 then
     player.scalex = sign(player.vx)
   end
+
+  player.jump_input_timer = player.jump_input_timer - dt
+  if is_input_just_pressed("Jump") then
+    player.jump_input_timer = COYOTE
+  end
+
+  player.grounded_timer = player.grounded_timer - dt
+  if player.box:touching_down() then
+    player.grounded_timer = COYOTE
+  end
 end
 
 function new_player(x, y)
@@ -86,7 +100,7 @@ function new_player(x, y)
     offsetx = -4,
     offsety = -6,
     layers = {},
-    mask = {"Hard"},
+    mask = { "Hard" },
   })
 
   add_comp(ent, "Sprite", "res/img/player.ase", {
@@ -108,4 +122,3 @@ function new_player(x, y)
 
   return ent
 end
-
diff --git a/src/objs/specks.lua b/src/objs/specks.lua
new file mode 100644
index 0000000..a3a21c5
--- /dev/null
+++ b/src/objs/specks.lua
@@ -0,0 +1,59 @@
+Speck_Sys = {}
+Speck_Sys.__index = Speck_Sys
+
+function Speck_Sys.new(texture)
+  local self = setmetatable({}, Speck_Sys)
+
+  self.data = {
+    size = 0,
+    pos = {},
+    vel = {},
+
+    lifetime = {},
+    lifetime_max = {},
+
+    scale_start = {},
+    scale_end = {}
+  }
+
+  self.scale_curve = lerp
+  self.scale_min = 1
+  self.scale_max = 1
+
+  self.scale_end_min = 1
+  self.scale_end_max = 1
+
+  self.texture = texture
+end
+
+function Speck_Sys:process(dt)
+  local data = self.data
+
+  for i = 1, data.size do
+    -- dead particles skip
+    if data.lifetime[i] <= 0 then
+      goto next_speck_process
+    end
+
+    data.pos[i].x = data.pos[i].x + data.vel[i].x * dt
+    data.pos[i].y = data.pos[i].y + data.vel[i].y * dt
+
+    data.lifetime[i] = data.lifetime[i] - dt
+
+    ::next_speck_process::
+  end
+end
+
+function Speck_Sys:draw()
+  local scale_curve = self.scale_curve
+  local data = self.data
+
+  for i = 1, data.size do
+    local anim = data.lifetime[i] / data.lifetime_max[i]
+    local scale = scale_curve(self.scale_start, self.scale_end, anim)
+
+    lg.draw(
+      self.texture, data.pos[i].x, data.pos[i].y
+    )
+  end
+end