feat: delay each mob spawn in one wave

2 files changed, 70 insertions, 0 deletions

diff --git a/config.lua b/config.lua
index 46db5f3..22d06d2 100644
--- a/config.lua
+++ b/config.lua
@@ -39,6 +39,10 @@ config = {
         size = 20,
     },
 
+    wave = {
+        mobSummonDelay = 1,
+    },
+
     initialMapSize = 7,
     extendedMapSize = 5,
 
diff --git a/logic/MobSpawn.lua b/logic/MobSpawn.lua
new file mode 100644
index 0000000..6029fc4
--- /dev/null
+++ b/logic/MobSpawn.lua
@@ -0,0 +1,66 @@
+local Enemy = require "objects.Enemy"
+local roomData = require "data.roomData"
+local translator = require "i18n.translator"
+
+local MobSpawn = {}
+
+function MobSpawn.waveNumber(room)
+    return #roomData[room.dataName].waves
+end
+
+function MobSpawn.waves(room)
+    local data = roomData[room.dataName]
+    if data.waves then
+        -- initialize if no waves going on
+        if not room.currentWave then
+            room.currentWave = 1
+        elseif room.currentWave <= #data.waves then
+            local waveData = data.waves[room.currentWave]
+
+            -- pre-wave actions
+            if not room.waveStarted then
+                speaker.speak(translator.T(waveData.message or "waveStart"))
+                room.waveStarted = true
+            end
+
+            -- only when all enemies are spawned and killed
+            -- move on to next wave
+            local waveFinished = MobSpawn.doOneWave(waveData.mobs, room)
+            if waveFinished then
+                room.currentWave = room.currentWave + 1
+                room.waveStarted = false -- 重置状态
+            end
+        else
+            room.currentWave = nil
+            return true -- 所有波次完成
+        end
+        return false
+    end
+    return true
+end
+
+function MobSpawn.doOneWave(mobs, room)
+    if not room.currentWaveMobIndex then
+        room.currentWaveMobIndex = 1
+        room.doNotSummonTill = G.time
+    elseif room.currentWaveMobIndex <= #mobs and G.time >= room.doNotSummonTill then
+        local enemyName = mobs[room.currentWaveMobIndex]
+        if enemyName then
+            local enemy = Enemy:new(enemyName, "anyDoor")
+            table.insert(room.objects.enemies, enemy)
+            enemy:placeInRoom(room)
+        end
+        room.currentWaveMobIndex = room.currentWaveMobIndex + 1
+        room.doNotSummonTill = G.time + config.wave.mobSummonDelay
+    end
+
+    -- 如果所有怪物都已经生成，返回 true，通知 waves 进入下一波
+    if room.currentWaveMobIndex > #mobs
+        and #room.objects.enemies == 0 then
+        room.currentWaveMobIndex = nil
+        return true
+    end
+    return false
+end
+
+return MobSpawn