Implement multiple stages

bundle/main.lua

@@ -16,7 +16,7 @@ local missile_speed_max = 0.25
 local unreflected_missiles = nil
 local unreflected_missiles_allowed = nil
 local unreflected_missiles_allowed_ramp_up = 10
-local unreflected_missiles_max = 7
+local unreflected_missiles_max = nil
 
 local cities = nil
 local city_radius = 0.05
@@ -32,6 +32,7 @@ local enemy_max_shoot = 10
 local enemy_inaccuracy = 0.05
 
 local intro_duration = 1
+local outro_duration = 0.5
 
 local stage = 1
 
@@ -43,7 +44,7 @@ local scale = nil
 
 local time = nil
 
-local states = {title = 0, intro = 1, gameplay = 2}
+local states = {title = 0, intro = 1, outro = 2, gameplay = 3}
 local state = nil
 
 font = require("font")
@@ -76,43 +77,83 @@ function fromScreenCoordinate(x, y)
 end
 
 function startStage()
-	movePaddle(window_width / 2)
-
 	missiles = {}
 	unreflected_missiles = 0
 	unreflected_missiles_allowed = 0
-	cities = {}
 	explosions = {}
 	enemies = {}
 	time = 0
 
-	spawnCities()
-	spawnEnemy(0.1, 0.1)
-	spawnEnemy(0.2, 0.1)
-	spawnEnemy(0.3, 0.1)
+	-- First row
+	if stage >= 3 then
+		spawnEnemy(0.1, 0.1)
+	end
+	if stage >= 2 then
+		spawnEnemy(0.2, 0.1)
+		spawnEnemy(0.3, 0.1)
+	end
 	spawnEnemy(0.4, 0.1)
 	spawnEnemy(0.5, 0.1)
 	spawnEnemy(0.6, 0.1)
-	spawnEnemy(0.7, 0.1)
-	spawnEnemy(0.8, 0.1)
-	spawnEnemy(0.9, 0.1)
-	spawnEnemy(0.15, 0.2)
-	spawnEnemy(0.25, 0.2)
+	if stage >= 2 then
+		spawnEnemy(0.7, 0.1)
+		spawnEnemy(0.8, 0.1)
+	end
+	if stage >= 3 then
+		spawnEnemy(0.9, 0.1)
+	end
+
+	-- Second row
+	if stage >= 3 then
+		spawnEnemy(0.15, 0.2)
+	end
+	if stage >= 2 then
+		spawnEnemy(0.25, 0.2)
+	end
 	spawnEnemy(0.35, 0.2)
 	spawnEnemy(0.45, 0.2)
 	spawnEnemy(0.55, 0.2)
 	spawnEnemy(0.65, 0.2)
-	spawnEnemy(0.75, 0.2)
-	spawnEnemy(0.85, 0.2)
+	if stage >= 2 then
+		spawnEnemy(0.75, 0.2)
+	end
+	if stage >= 3 then
+		spawnEnemy(0.85, 0.2)
+	end
+
+	-- Third row
+	if stage >= 4 then
+		spawnEnemy(0.1, 0.3)
+		spawnEnemy(0.2, 0.3)
+		spawnEnemy(0.3, 0.3)
+		spawnEnemy(0.4, 0.3)
+		spawnEnemy(0.5, 0.3)
+		spawnEnemy(0.6, 0.3)
+		spawnEnemy(0.7, 0.3)
+		spawnEnemy(0.8, 0.3)
+		spawnEnemy(0.9, 0.3)
+	end
+
+	if stage == 3 or stage >= 5 then
+		unreflected_missiles_max = unreflected_missiles_max + 1
+	end
 
 	state = states.intro
 end
 
 function love.load()
 	math.randomseed(os.time())
+
 	local width, height = love.graphics.getDimensions()
 	setScreenDimensions(width, height)
 
+	movePaddle(window_width / 2)
+
+	unreflected_missiles_max = 1
+
+	cities = {}
+	spawnCities()
+
 	state = states.title
 end
 
@@ -295,7 +336,7 @@ function updateExplosions(dt)
 
 		explosion.remaining = explosion.remaining - dt
 
-		if explosion.remaining < explosion_duration * 0.2 then
+		if explosion.remaining < explosion_duration * 0.2 and state == states.gameplay then
 			-- Destroy cities within range
 			for _, city in ipairs(cities) do
 				local dx = city.x - explosion.x
@@ -353,8 +394,21 @@ function love.update(dt)
 			unreflected_missiles_allowed = unreflected_missiles_allowed + 1
 		end
 
-		if #explosions == 0 and #missiles == 0 and #enemies == 0 then
-			love.event.quit()
+		if #enemies == 0 then
+			state = states.outro
+			time = 0
+			explodeAllMissiles()
+		end
+	elseif state == states.outro then
+		updateMissiles(dt)
+		updateExplosions(dt)
+
+		if #explosions == 0 then
+			time = time + dt
+			if time >= outro_duration then
+				stage = stage + 1
+				startStage()
+			end
 		end
 	elseif state == states.intro then
 		time = time + dt
@@ -365,6 +419,15 @@ function love.update(dt)
 	end
 end
 
+function explodeAllMissiles()
+	for _, missile in ipairs(missiles) do
+		spawnExplosion(missile.x, missile.y)
+		-- Freeze the missile
+		missile.dx = 0
+		missile.dy = 0
+	end
+end
+
 function explodeAllReflected()
 	for _, missile in ipairs(missiles) do
 		if missile.reflected then
@@ -536,7 +599,7 @@ function drawTextCentered(y, text_scale, text)
 end
 
 function love.draw()
-	if state == states.gameplay or state == states.intro then
+	if state == states.gameplay or state == states.outro or state == states.intro then
 		drawCities()
 		drawWalls()
 		drawMissiles()