Quick Cocos2dx 初步战斗

呵呵，图片先来一发：

最近懒，很懒，连我自己都觉得有点可耻了。

但是实在没有什么东西啊，温水煮青蛙的什么的。

吐槽完成，以上。

目前完成了简单的战斗部分，AI还需要抽出来。

然后突然之间想到手游的帧频是60fps/s，然后就放弃了之前比较平滑的CCMoveTo，换成了每帧去计算坐标。

还增加了掉血计算与表现，与死亡逻辑处理。

虽然处理得不是很干净，但是这个是后续需要优化的部分。

本次的主要用到的知识点：

framework.scheduler

framework.transition

写这篇blog的目的是在于给自己一点动力，能够一步一个脚印去记录自己。

主要更新的代码部分：

GameUnit.lua:增加了死亡逻辑处理

GameUnit.lua

local GameUnit = class("GameUnit", function()
    return display.newNode()
end)
local scheduler = import("framework.scheduler")
local Progress = import("app.views.Progress")

function GameUnit:ctor(hero)
    -- body
    local clas = hero.class
    cc.EventProxy.new(hero, self)
        :addEventListener(clas.CHANGE_STATE_EVENT, handler(self, self.onStateChange))
        :addEventListener(clas.KILL_EVENT, handler(self, self.onKilled))
        :addEventListener(clas.HP_CHANGED_EVENT, handler(self, self.onHpChanged))
        :addEventListener(clas.EXP_CHANGED_EVENT, handler(self, self.onExpChanged))

    self.player = hero
    self:initDisplay()
end

function GameUnit:onStateChange( event )
    self:updateShapeDisplay(self.player:getState())
end

--更新角色显示{"anim_walk","anim_eat","anim_placeladder","anim_idle","anim_ladderwalk","anim_laddereat","anim_death"}
function GameUnit:updateShapeDisplay(state)
    local animname = "anim_idle"
    if state == "walking" then
        animname = "anim_walk"
    elseif state == "firing" then
        animname = "anim_eat"
    elseif state == "dead" then
        animname = "anim_death"
    end
    printInfo("GameUnit state changed to %s playing : %s", state, animname)
    if self.shape ~= nil then
        local animation = self.shape:getAnimation()
        animation:setSpeedScale(0.6)
        animation:play(animname)
        self:setPosition(self.player:getX(), self.player:getY())
        self:setScaleX(self.player:getDirection())
        
    end

    if self.player:isDead() then
        scheduler.performWithDelayGlobal(handler(self, self.autoRemove), 1.5)
    end
end

function GameUnit:onKilled( event)
    -- body
end

function GameUnit:onHpChanged( event )
    self.hpbar:setProgress(self.player:getHp()/self.player:getMaxHp() * 100)
    
end

function GameUnit:autoRemove()
    local action = CCFadeTo:create(1.0, 0.0)
    transition.execute(self.shape, action, {
        onComplete = function( )
            self:removeSelf()
        end
        })
end

function GameUnit:onExpChanged( event )
    -- body
end

--初始化显示
function GameUnit:initDisplay()
    -- 角色外观
    local shape = CCArmature:create(self.player:getRes())
    self.shape = shape
       self:updateShapeDisplay(self.player:getState())
       shape:setAnchorPoint(CCPoint(0.5,0))
       self:addChild(shape)

    --角色血条
    self.hpbar = Progress.new("progres_bg.png","progress.png")
    self.hpbar:pos(0.5, shape:getContentSize().height)
    self:addChild(self.hpbar)
end
--传入|更新数据
function GameUnit:setData()
    -- body
end
--取得数据
function GameUnit:getData()
    return self.hero
end
--添加事件:重复利用这个对象的时候会用到
function GameUnit:addEvents()
    -- body
end
--移除事件:重复利用这个对象的时候会用到
function GameUnit:removeEvents()
    -- body
end

return GameUnit

PlayerController.lua：增加了伤害跳字，优化了角色移动的计算方式

local PlayerController = class("PlayerController")

function PlayerController:ctor()
end

function PlayerController:initEventListener(hero)
end

function PlayerController:tick(spMaps)
    ---更新数据
    --[[
    for name,sp in ipairs(spMaps) do
        if sp:getAI() == nil then
            sp:setAI(ai)
        end
    end]]
    local  enemy
    local me = app:getObject("me")    
    local mytarget = me:getTarget()
    if mytarget == nil then
        me:searchTarget()
    end

    mytarget = me:getTarget()
    if mytarget == nil then
        printLog(10, "Win==============")
    else
        enemy = app:getObject(mytarget)
        if enemy:isDead() then
            printLog(10, "Win==============")
            return
        end
        local myShape
        local distance = self:dist(enemy:getX(),enemy:getY(), me:getX(), me:getY())
        if distance < me:getRadius() then
            if me:getState() == "walking" then--走动状态中的话进行待命
                myShape = spMaps[me:getId()]
                myShape:stopActionByTag(100)
                me:standby()
            elseif me:getState() == "idle" then--待命状态的话根据冷却时间判断是否攻击
                if me:canFire() then
                    me:fire(enemy)
                    local percent = math.random(0,10)
                    local stat_sp
                    if percent >= 6 then
                        stat_sp = self:getHarmSp(10,enemy:getX(),enemy:getY()+50)
                        enemy:decreaseHp(10)
                    else
                        stat_sp = self:getHarmSp(0,enemy:getX(),enemy:getY()+50)
                    end

                    local parent = display.getRunningScene()
                    assert(parent ~= nil, "parent is nil") 
                    assert(stat_sp ~= nil, "stat_sp is nil")
                    if stat_sp ~= nil and parent ~= nil then
                        parent:addChild(stat_sp)
                        transition.execute(stat_sp, CCMoveTo:create(1.0, CCPoint(enemy:getX()-50, enemy:getY()+150)), {
                            onComplete = function()
                                stat_sp:removeSelf()
                            end
                            })
                    end
                else
                    print("Cooling down....")
                end
            end
        else
            if me:getState() ~= "walking" then
                me:walk()
                myShape = spMaps[me:getId()]
                --[[local duration = distance/me:getSpeed()
                local action = CCMoveTo:create(duration,CCPoint(enemy:getX(),enemy:getY()))
                action:setTag(100)
                myShape:runAction(action)]]
            else
                me:updatePos()
            end
        end
    end
    --更新显示:用显示去更新数据，这个是不对的
    for key,sp in pairs(spMaps) do
        local data = app:getObject(key)
        if data ~= nil then
            sp:setPosition(data:getX(), data:getY())
            --[[data:setX(sp:getPositionX())
            data:setY(sp:getPositionY())]]
        end
    end
end

function PlayerController:getHarmSp( harm, posx, posy )
    local  sp 
    local harmstr = string.format("%d", harm)
    if harm > 0 then
        sp = CCNode:create()
        sp:pos(posx, posy)
        for i=1,#harmstr do
            local tempsp = display.newSprite("fight/"..string.sub(harmstr, i,i)..".png",(i-1)*30,0)
            local size = tempsp:getContentSize()
            printLog(1, "tempsp size w:%f h:%f", size.width, size.height)
            if tempsp ~= nil then
                sp:addChild(tempsp)
            end
        end
    else
        sp = display.newSprite("shanbix_wenzi.png", posx, posy)
    end
    return sp
end

function PlayerController:dist( ax,ay,bx,by )
    local dx,dy = ax - bx, ay - by
    return math.sqrt(dx*dx + dy*dy)
end

function PlayerController:useSkill(skill)
    self.view:useSkill(skill)
end

function PlayerController:control( view )
    -- body
    self.view = view
end

return PlayerController