add slow trap

ReadMe.md

@@ -36,3 +36,7 @@ cmake --build build --target install
 # 体积过大
 
 游戏最后的可执行文件和库是经过压缩的（先`strip`再`upx`），最后结果超出1M很正常。
+
+# 游戏截图
+
+![snapshot](./snapshot/snapshot.png)

game/HowToPlay.txt

@@ -0,0 +1,25 @@
+# InfinitShoot
+
+## 游戏介绍
+
+玩家扮演一个枪手，要尽可能地在怪物的围攻中活下来
+
+## 游戏玩法
+
+左键射击，wasd移动
+
+## 游戏内容
+
+游戏中的敌人会向你移动，想办法击杀或者躲开它们。
+
+游戏中存在三种类型的子弹：
+
+* 普通子弹：玩家初始的子弹，射速最快，伤害中等，但是没有特殊效果
+* 火焰子弹：射速最慢，但是伤害最高，附加怪物火焰效果
+* 冰冻子弹：射速中等，伤害中等，可以冻住怪物，冰冻期间触碰怪物不会受到伤害
+
+特殊效果子弹通过击杀20个敌人后从空投中获得。
+
+空投中除了子弹，还有回血的道具，吃完后立刻回血。
+
+游戏中的敌人尸体在一定时间后会腐烂，踩在腐烂的尸体上将会极大地减少玩家的速度

game/constants.lua

@@ -7,18 +7,23 @@ _M.SoundName = {
     PlayerHurt = "PLAYER_HURT",
     MonsterHurt = "MONSTER_HURT",
     GameOver = "GAMEOVER",
+    HpRecover = "HPRECOVER",
+    PickupGun = "PickupGun",
 }
 
 _M.TileSize = 32
 _M.PlayerInfo = {
-    velocity = 250,
+    velocity = 200,
-    hp = 100,
+    hp = 50,
 }
+_M.PlayerSlowSpeed = 50
+
 _M.MonsterInfo = {
     velocity = 100,
     hp = 50,
     damage = 10,
 }
+_M.MonsterDissolveTime = 5
 _M.RoleColliBox = {
     w = 14,
     h = 32,
@@ -49,9 +54,6 @@ _M.MonsetHpBarInfo= {
     width = _M.TileSize,
     height = 5,
 }
-_M.GunInfo = {
-    cooldown = 0.1
-}
 
 _M.BulletType = {
     Normal = 1,
@@ -69,20 +71,20 @@ _M.BulletInfo = {
     [_M.BulletType.Ice] = {
         damage = 5,
         velocity = 400,
-        cooldown = 0.1,
+        cooldown = 0.2,
         initNum = 100,
     },
     [_M.BulletType.Fire] = {
         damage = 7,
         velocity = 600,
-        cooldown = 0.1,
+        cooldown = 0.4,
         fireDamage = 1,
         initNum = 100,
     },
 }
 
 _M.BulletEffectTime = {
-    IceTime = 2,
+    IceTime = 5,
     FireTime = 2,
 }
 _M.RoleState = {
@@ -90,7 +92,7 @@ _M.RoleState = {
     Ice = 2,
     Fire = 3,
 }
-_M.SupplyFalldownKillNum = 120
+_M.SupplyFalldownKillNum = 20
 
 _M.SupplyType = {
     IceGun = 1,
@@ -98,8 +100,8 @@ _M.SupplyType = {
     HpRecover = 3,
 }
 _M.SupplyItem = {
-    [_M.SupplyType.IceGun] = { num = 100 },
+    [_M.SupplyType.IceGun] = { num = 50},
-    [_M.SupplyType.FireGun] = { num = 100 },
+    [_M.SupplyType.FireGun] = { num = 50},
     [_M.SupplyType.HpRecover] = { recover = 50},
 }
 

game/content.lua

@@ -34,11 +34,16 @@ _M.GameStateEnum = {
     Gaming = 3,
 }
 
+_M.HpRecoverListAnim = {}
+
 _M.GameState = _M.GameStateEnum.ShowLogo
 
 ---@type table<Entity>
 _M.MonsterList = {}
 
+---@type table<Entity>
+_M.MonsterCorpseList = {}
+
 _M.MonsterBirthNum = 0
 
 _M.MonsterBirthCountDown = 0

game/ecs.lua

@@ -117,7 +117,8 @@ local ComponentType = {
     Animator = 11,
     State = 12,
     Supply = 13,
-    Image = 14,
+    SlowTrap = 14,
+    Image = 15,
 }
 
 _M.ComponentType = ComponentType
@@ -430,6 +431,9 @@ function _M.CreateGunComponent(type, bulletNum)
     o.SetType = function(self, type)
         self.type = type or constants.BulletType.Normal
         self.bulletNum = constants.BulletInfo[self.type].initNum
+        o.cdTimer = timer.CreateTimer(constants.BulletInfo[type].cooldown, -1, function()
+            o.canShoot = true
+        end)
     end
 
     o.GetBulletNum = function(self)
@@ -521,6 +525,36 @@ function _M.CreateSupplyComponent(type)
 end
 
 
+---@class SlowTrapComponent:Component
+---@field IsEnable function
+---@field StartDissolve function
+
+---@return SupplyComponent
+function _M.CreateSlowTrapComponent()
+    local o = { isActive = true, name = ComponentType.SlowTrap, isEnable = false, parent = nil }
+    ---@type Timer
+    o.timer = nil
+    o.StartDissolve = function(self)
+        self.timer = timer.CreateTimer(constants.MonsterDissolveTime, 1, function()
+            self.isEnable = true
+            ---@type ImageComponent
+            local image = self:GetParent():GetComponent(ComponentType.Image)
+            if image then
+                image.row = 12
+                image.col = 0
+            end
+        end)
+    end
+    o.IsEnable = function(self) return self.isEnable end
+    o.Update = function(self)
+        if self.timer then
+            self.timer:Update()
+        end
+    end
+    return _M.CreateComponent(o)
+end
+
+
 ---@class StateComponent:Component
 ---@field rect Rect
 
@@ -575,6 +609,9 @@ function _M.CreateStateComponent(state)
             local oldHp = roleProp.hp
             roleProp.hp = roleProp.hp - constants.BulletInfo[constants.BulletType.Fire].fireDamage
             if oldHp > 0 and roleProp.hp <= 0 then
+                local slowTrap = _M.CreateSlowTrapComponent()
+                self:GetParent():SetComponent(slowTrap)
+                slowTrap:StartDissolve()
                 content.Score = content.Score + 1
                 helpfuncs.IncKillNum()
             end
@@ -634,7 +671,6 @@ function _M.CreateAnimatorComponent(ani)
     return _M.CreateComponent(o)
 end
 
-
 ---@return Entity
 ---@param pos Point
 ---@param damage number
@@ -665,7 +701,7 @@ function _M.CreatePlayer(pos)
     entity:SetComponent(_M.CreateImageComponent(content.Tilesheet, 0, 0))
     entity:SetComponent(_M.CreateRolePropComponent(constants.PlayerInfo.hp, constants.PlayerInfo.velocity))
     entity:SetComponent(_M.CreateDirectionComponent(0))
-    entity:SetComponent(_M.CreateGunComponent(constants.BulletType.Fire))
+    entity:SetComponent(_M.CreateGunComponent(constants.BulletType.Normal))
     entity:SetComponent(_M.CreateColliBoxComponent(constants.RoleColliBox))
     entity:SetComponent(_M.CreateInvincibleComponent(constants.Invincible))
     entity:SetComponent(_M.CreateStateComponent())
@@ -699,5 +735,4 @@ function _M.CreateSupply(type, pos)
     return entity
 end
 
-
 return _M

game/main.lua

@@ -66,7 +66,19 @@ end
 
 local function updateMonster()
     ---@param v Entity
-    for _, v in pairs(content.MonsterList) do
+    for i, v in pairs(content.MonsterList) do
+        if v:GetComponent(ECS.ComponentType.RoleProp):IsDie() then
+            table.insert(content.MonsterCorpseList, v)
+            content.MonsterList[i] = nil
+        else
+            v:Update()
+        end
+    end
+end
+
+local function updateMonsterCropse()
+    ---@param v Entity
+    for _, v in pairs(content.MonsterCorpseList) do
         v:Update()
     end
 end
@@ -85,7 +97,7 @@ local function collisionDeal()
     local playerPos = content.PlayerEntity:GetComponent(ECS.ComponentType.Transform).position
     ---@type Rect
     local playerColliBox = hazel.CreateRect(playerPos.x + playerBox.x, playerPos.y + playerBox.y, playerBox.w, playerBox.h)
-    ---@type m Entity
+    ---@type Entity
     for km, _ in pairs(content.MonsterList) do
         ---@type Entity
         local monster = content.MonsterList[km]
@@ -101,7 +113,10 @@ local function collisionDeal()
                                                      monsterBox.w, monsterBox.h)
             ---@type RolePropComponent
             local monsterRoleProp = monster:GetComponent(ECS.ComponentType.RoleProp)
-            if vmath.IsRectIntersect(playerColliBox, monsterColliBox) then
+            ---@type StateComponent
+            local mosnterState = monster:GetComponent(ECS.ComponentType.State):GetState()
+
+            if mosnterState ~= constants.RoleState.Ice and vmath.IsRectIntersect(playerColliBox, monsterColliBox) then
                 ---@type InvincibleComponent
                 local playerInvincible = content.PlayerEntity:GetComponent(ECS.ComponentType.Invincible)
                 if playerInvincible and not playerInvincible:IsInvincibleState() then
@@ -152,6 +167,10 @@ local function collisionDeal()
                     hazel.Sound.Play(constants.SoundName.MonsterHurt)
                     if monsterRoleProp:IsDie() then
                         if oldHp > 0 then
+                            ---@type SlowTrapComponent
+                            local slowTrap = ECS.CreateSlowTrapComponent()
+                            monster:SetComponent(slowTrap)
+                            slowTrap:StartDissolve()
                             content.Score = content.Score + 1
                             helpfunc.IncKillNum()
                         end
@@ -173,8 +192,16 @@ local function collisionDeal()
                 ---@type GunComponent
                 local gun = content.PlayerEntity:GetComponent(ECS.ComponentType.Gun)
                 local type = v:GetComponent(ECS.ComponentType.Supply).type
-                print(type)
                 if type == constants.SupplyType.HpRecover then
+                    local index = #content.HpRecoverListAnim + 1
+                    local hpRecoverAnim = animation.CreateAnimation(content.Tilesheet, {
+                        {row = 12, col = 1, time = 0.5},
+                    }, function()
+                        content.HpRecoverListAnim[index] = nil
+                    end)
+                    hpRecoverAnim:Play()
+                    table.insert(content.HpRecoverListAnim, index, hpRecoverAnim)
+                    hazel.Sound.Play(constants.SoundName.HpRecover)
                     ---@type RolePropComponent
                     local roleProp = content.PlayerEntity:GetComponent(ECS.ComponentType.RoleProp)
                     roleProp.hp = roleProp.hp + constants.SupplyItem[type].recover
@@ -184,13 +211,42 @@ local function collisionDeal()
                 elseif type == constants.SupplyType.IceGun then
                     gun:SetType(constants.BulletType.Ice)
                     gun.bulletNum = gun.bulletNum + constants.SupplyItem[type].num
+                    hazel.Sound.Play(constants.SoundName.PickupGun)
                 elseif type == constants.SupplyType.FireGun then
                     gun:SetType(constants.BulletType.Fire)
                     gun.bulletNum = gun.bulletNum + constants.SupplyItem[type].num
+                    hazel.Sound.Play(constants.SoundName.PickupGun)
                 end
             end
         end
     end
+
+    ---@type boolean
+    local isSlowed = False
+    ---@type RolePropComponent
+    local playerProp = content.PlayerEntity:GetComponent(ECS.ComponentType.RoleProp)
+    playerProp.speed = constants.PlayerSlowSpeed
+    ---@param mk number
+    ---@param corpse Entity
+    for mk, corpse in pairs(content.MonsterCorpseList) do
+        ---@type Point
+        local corpsePos = corpse:GetComponent(ECS.ComponentType.Transform).position
+        ---@type Rect
+        local corpseBox = corpse:GetComponent(ECS.ComponentType.ColliBox).rect
+        ---@type Rect
+        local corpseColliBox = hazel.CreateRect(corpsePos.x + corpseBox.x, corpsePos.y + corpseBox.y,
+                                                corpseBox.w, corpseBox.h)
+        ---@type SlowTrapComponent
+        local slowTrap = corpse:GetComponent(ECS.ComponentType.SlowTrap)
+        if slowTrap:IsEnable() and vmath.IsRectIntersect(corpseColliBox, playerColliBox) then
+            isSlowed = true
+            playerProp.speed = constants.PlayerSlowSpeed
+        end
+    end
+
+    if not isSlowed then
+        playerProp.speed = constants.PlayerInfo.velocity
+    end
 end
 
 local function showRestartHint()
@@ -218,8 +274,10 @@ end
 local function initGame()
     content.KillNum = 0
     content.Score = 0
+    content.HpRecoverListAnim = {}
     content.BulletList = {}
     content.MonsterList = {}
+    content.MonsterCorpseList = {}
     content.SupplyList = {}
     content.PlayerEntity = ECS.CreatePlayer(hazel.CreatePos(constants.TileSize * 16, constants.TileSize * 13))
     content.MonsterBirthNum = constants.MonsterBirthInitNum
@@ -297,6 +355,23 @@ local function drawNum(num, x, y)
     end
 end
 
+local function updateHpRecoverAnim()
+    for _, ani in pairs(content.HpRecoverListAnim) do
+        if ani:IsPlaying() then
+            ani:Update()
+            ---@type TileSheet
+            local tilesheet = ani:GetTilesheet()
+            ---@type Frame
+            local frame = ani:GetCurFrame()
+            ---@type Point
+            local pos = content.PlayerEntity:GetComponent(ECS.ComponentType.Transform).position
+            tilesheet:Draw(frame.col, frame.row,
+                        hazel.CreateRect(pos.x, pos.y - constants.TileSize - 5,
+                                            constants.TileSize, constants.TileSize))
+        end
+    end
+end
+
 local function updateRoles()
     ---@param monster Entity
     for _, monster in pairs(content.MonsterList) do
@@ -306,7 +381,7 @@ local function updateRoles()
             monster:RemoveComponent(ECS.ComponentType.Direction)
             monster:RemoveComponent(ECS.ComponentType.AI)
             monster:RemoveComponent(ECS.ComponentType.HpShow)
-            monster:RemoveComponent(ECS.ComponentType.ColliBox)
+            -- monster:RemoveComponent(ECS.ComponentType.ColliBox)
             monster:RemoveComponent(ECS.ComponentType.State)
             ---@type ImageComponent
             local image = monster:GetComponent(ECS.ComponentType.Image)
@@ -322,13 +397,15 @@ function GameStart()
     content.RestartHintTexture = hazel.LoadTexture("resources/RestartHint.png")
     content.LicensTexture = hazel.LoadTexture("resources/License.png")
     content.StartHintTexture = hazel.LoadTexture("resources/StartHint.png")
-    content.Tilesheet = hazel.CreateTileSheet(content.Texture, 3, 12)
+    content.Tilesheet = hazel.CreateTileSheet(content.Texture, 3, 13)
     content.NumberTexture = hazel.LoadTexture("resources/numbers.png")
     content.NumberTilesheet = hazel.CreateTileSheet(content.NumberTexture, 11, 1)
     hazel.Sound.Load("resources/gameover.wav", constants.SoundName.GameOver)
     hazel.Sound.Load("resources/player_hurt.wav", constants.SoundName.PlayerHurt)
     hazel.Sound.Load("resources/monster_hurt.wav", constants.SoundName.MonsterHurt)
     hazel.Sound.Load("resources/shoot.wav", constants.SoundName.Shoot)
+    hazel.Sound.Load("resources/hprecover.wav", constants.SoundName.HpRecover)
+    hazel.Sound.Load("resources/pickupgun.wav", constants.SoundName.PickupGun)
 
     initGame()
 
@@ -373,6 +450,7 @@ function GameLoop()
 
     if content.GameState == content.GameStateEnum.WaitStart or content.GameState == content.GameStateEnum.Gaming then
         drawFloors()
+        updateMonsterCropse()
         updateSupply()
         updateMonster()
         content.PlayerEntity:Update()
@@ -380,6 +458,7 @@ function GameLoop()
         collisionDeal()
         drawCurosr()
         updateRoles()
+        updateHpRecoverAnim()
     end
 
     ---@type RolePropComponent
@@ -395,8 +474,18 @@ function GameLoop()
         ---@type GunComponent 
         local gun = content.PlayerEntity:GetComponent(ECS.ComponentType.Gun)
         local x = hazel.GetCanvaSize().x - 128
+        content.Tilesheet:Draw(2, 11, hazel.CreateRect(x - 64, 22, 50, 50))
         drawNum(content.Score, x, 32)
         if gun then
+            ---@param type number
+            local type = gun.type
+            if type == constants.BulletType.Fire then
+                content.Tilesheet:Draw(1, 10, hazel.CreateRect(x - 64, 70, 50, 50))
+            elseif type == constants.BulletType.Ice then
+                content.Tilesheet:Draw(0, 10, hazel.CreateRect(x - 64, 80, 50, 50))
+            else
+                content.Tilesheet:Draw(1, 4, hazel.CreateRect(x - 64, 80, 50, 50))
+            end
             drawNum(gun:GetBulletNum(), x, 80)
         end
     end