(BUGGY) Base for powerup system

Requires latest commit of asset branch.

Attempts to implement a powerup system.
Transition effects (normal->powerup and vice versa) TBA.
Powerups expiring works, but they still instantly turn back in the next tick.

src/Sphere.lua

@@ -38,9 +38,14 @@ function Sphere:new(sphereGroup, deserializationTable, color, shootOrigin, shoot
 		self.boostCombo = false
 		self.shootOrigin = nil
 		self.shootTime = nil
+        self.currentPowerup = nil
+		self.powerupTime = nil
 		self.effects = {}
 		self.gaps = gaps or {}
-		self.ghostTime = nil
+        self.ghostTime = nil
+		self.powerupTime = nil
+		-- this should be per-level in the future
+		self.powerupCooldown = 3
     end
 
 	self.entity = sphereEntity or SphereEntity(self:getPos(), self.color)
@@ -89,6 +94,28 @@ function Sphere:update(dt)
 		end
 	end
 
+    -- Base for powerup system
+    -- TODO: De-hardcode stuff in this block of code
+    self.powerupCooldown = self.powerupCooldown - dt
+    if math.random() >= 0.75 then
+		if not self.currentPowerup and self.powerupCooldown >= 0 then
+			self.currentPowerup = "time"
+            self.entity:setSprite(self.currentPowerup)
+			-- also dehardcode this in the future
+            self.powerupTime = 3 - dt
+			--_Debug.console:print("Powerup added")
+        else
+			self.powerupCooldown = 15
+            self.powerupTime = self.powerupTime - dt
+			if self.powerupTime <= 0 then
+				self.currentPowerup = nil
+                self.entity:setSprite()
+				self.powerupTime = nil
+				--_Debug.console:print("Powerup removed")
+			end
+        end
+	end
+
 	-- Update the effects.
 	for i, effect in ipairs(self.effects) do
 		-- If it has to infect...
@@ -633,6 +660,9 @@ function Sphere:deserialize(t)
 	self.shootOrigin = t.shootOrigin and Vec2(t.shootOrigin.x, t.shootOrigin.y) or nil
 	self.shootTime = t.shootTime
 	self.ghostTime = t.ghostTime
+	self.currentPowerup = t.currentPowerup
+	self.powerupTime = t.powerupTime
+	self.powerupCooldown = t.powerupCooldown
 
 	self.effects = {}
 	if t.effects then

src/SphereEntity.lua

@@ -26,12 +26,13 @@ function SphereEntity:new(pos, color)
 	if _Game.runtimeManager.options:getColorblindMode() and self.config.colorblindSprite then
         self.sprite = _Game.resourceManager:getSprite(self.config.colorblindSprite)
     end
+	self.shouldRotate = true
 	self.particle = self.config.idleParticle and _Game:spawnParticle(self.config.idleParticle, pos)
 end
 
 
 
----Gets the current sprite which is dependant on Colorblind Mode.
+---Gets the current sprite which is dependent on Colorblind Mode.
 ---@return Sprite
 function SphereEntity:getSprite()
 	if _Game.runtimeManager.options:getColorblindMode() and self.config.colorblindSprite then
@@ -42,6 +43,39 @@ function SphereEntity:getSprite()
 end
 
 
+---Sets the current sprite to whatever powerup is specified.
+---@param powerup? string Defaults to `nil`, which resets the sphere.
+---@param shouldRotate? boolean Defaults to `true`. If `powerup` is nil, this will always be true.
+function SphereEntity:setSprite(powerup, shouldRotate)
+	if not powerup then
+		powerup = nil
+    end
+	if not shouldRotate then
+		shouldRotate = true
+    end
+
+	if shouldRotate then
+		self.shouldRotate = shouldRotate
+    end
+	if powerup then
+		if _Game.runtimeManager.options:getColorblindMode() and self.config.colorblindPowerupSprites[powerup] then
+			self.sprite = _Game.resourceManager:getSprite(self.config.colorblindPowerupSprites[powerup])
+		else
+			self.sprite = _Game.resourceManager:getSprite(self.config.powerupSprites[powerup])
+		end
+    else
+        -- fallback to defaults
+		-- should rotate regardless of shouldRotate setting
+		self.shouldRotate = true
+		if _Game.runtimeManager.options:getColorblindMode() and self.config.colorblindSprite then
+			self.sprite = _Game.resourceManager:getSprite(self.config.colorblindSprite)
+		else
+			self.sprite = _Game.resourceManager:getSprite(self.config.sprite)
+		end
+	end
+end
+
+
 
 ---Moves the sphere entity to a given location.
 ---@param pos Vector2 The new position of this Sphere Entity.