我正在创建一个使用Corona练习编码的2D游戏，我遇到了问题。游戏中其中一个敌人的背部形状像一个颠簸的滑道（有点像），当我的角色击中敌人的背部时，它开始滑离屏幕。当敌人被击中时，游戏切换到另一个屏幕并切换回来。
https://www.youtube.com/watch?v=xGoZ1jEG0YA&feature=youtu.be
这是一个显示正在发生的事情的视频，在大约40或45秒后你会看到角色开始滑动。
我已尝试过多种方法来解决这个问题，敌人和玩家的弹跳因子都设置为零。我尝试将玩家x坐标的linearVelocity设置为零，但这不起作用。这是我的碰撞检测代码。
function spawnEnemies()
temp = math.random(1, 4)
enemy = display.newSprite(beetle, beetleSequenceData)
enemy.x = _R + 100
enemy.y = _CY
enemy.hasBeenScored = false
physics.addBody(enemy, "dynamic", physicsData:get("beetle"))
enemy.xScale = -1
enemy.id = "enemy"
enemy.isFixedRotation = true
enemy:play()
group:insert(enemy)
enemy2 = display.newSprite(vulture, vultureSequenceData)
enemy2.x = _R + 100
enemy2.y = _CY - (enemy2.height * 0.25)
enemy2.hasBeenScored = false
physics.addBody(enemy2, "dynamic", physicsData:get("vulture"))
enemy2.xScale = -1
enemy2.gravityScale = -0.01
enemy2.id = "enemy2"
enemy2.isFixedRotation = true
enemy2:play()
specialGroup:insert(enemy2)
enemy3 = display.newSprite(scorpion, scorpionSequenceData)
enemy3.x = _R + 100
enemy3.y = _CY
enemy3.hasBeenScored = false
physics.addBody(enemy3, "dynamic", physicsData:get("scorpion"))
enemy3.xScale = -1
enemy3.id = "enemy3"
enemy3.isFixedRotation = true
enemy3:play()
group:insert(enemy3)
enemy4 = display.newSprite(bee, beeSequenceData)
enemy4.x = _R + 100
enemy4.y = _CY - (enemy4.height * 0.25)
enemy4.hasBeenScored = false
physics.addBody(enemy4, "dynamic", floatingEnemies:get("bee"))
enemy4.xScale = -1
enemy4.gravityScale = -0.01
enemy4.id = "enemy4"
enemy4.isFixedRotation = true
enemy4:play()
specialGroup:insert(enemy4)
if temp == 1 then
enemy2:removeSelf()
enemy3:removeSelf()
enemy4:removeSelf()
elseif temp == 2 then
enemy:removeSelf()
enemy3:removeSelf()
enemy4:removeSelf()
elseif temp == 3 then
enemy:removeSelf()
enemy2:removeSelf()
enemy4:removeSelf()
else
enemy:removeSelf()
enemy2:removeSelf()
enemy3:removeSelf()
end
end
function moveEnemies()
for a = group.numChildren, 1, -1 do
if group[a].x < 100 then
if group[a].hasBeenScored == false then
updateScore()
group[a].hasBeenScored = true
end
end
if group[a].x > _L - 100 then
group[a].x = group[a].x - 8
else
group:remove(group[a])
end
end
for b = specialGroup.numChildren, 1, -1 do
if specialGroup[b].x < 100 then
if specialGroup[b].hasBeenScored == false then
specialUpdateScore()
specialGroup[b].hasBeenScored = true
end
end
if specialGroup[b].x > _L - 100 then
specialGroup[b].x = specialGroup[b].x - 8
else
specialGroup:remove(specialGroup[b])
end
end
end
function onCollision(event)
local function removeOnPlayerHit(obj1, obj2)
if(obj1 ~= nil and obj1.id == "enemy") then
display.remove(obj1)
end
if(obj2 ~= nil and obj2.id == "enemy") then
display.remove(obj2)
end
if(obj1 ~= nil and obj1.id == "enemy2") then
display.remove(obj1)
end
if(obj2 ~= nil and obj2.id == "enemy2") then
display.remove(obj2)
end
if(obj1 ~= nil and obj1.id == "enemy3") then
display.remove(obj1)
end
if(obj2 ~= nil and obj2.id == "enemy3") then
display.remove(obj2)
end
if(obj1 ~= nil and obj1.id == "enemy4") then
display.remove(obj1)
end
if(obj2 ~= nil and obj2.id == "enemy4") then
display.remove(obj2)
end
end
local function showPlayerHit()
local tmr_onPlayerHit = timer.performWithDelay(1, playerHit, 1)
end
if event.phase == "began" then
if((event.object1.id == "enemy" or event.object1.id == "enemy2" or event.object1.id == "enemy3" or event.object1.id == "enemy4") and event.object2.id == "character") then
showPlayerHit()
removeOnPlayerHit(event.object1, nil)
elseif(event.object1.id == "character" and (event.object2.id == "enemy" or event.object2.id == "enemy2" or event.object2.id == "enemy3" or event.object2.id == "enemy4")) then
showPlayerHit()
removeOnPlayerHit(nil, event.object2)
end
end
end
答案 0 :(得分：0)
我刚刚为你简化了代码
-- utility function
function isInArray(a, s, t)
local g = {}
for k, v in pairs(a) do
if t then
if v ~= s then
table.insert(g, v)
end
else
if v == s then
return true
end
end
end
return t and (#g > 0 and g or false) or false
end
-- this will hold all the enemies names
local enemies = {}
-- this function creates all the enemies
function createEnemies(name, number)
for i = 1, number do
table.insert(enemies, i, name..i)
end
end
-- now lets create the enemies, 4 enemies in total with the name enemy+n
-- e.g. enemy1, enemy2 etc.. for value of number
createEnemies('enemy', 4)
function onCollision(event)
local function removeOnPlayerHit(obj1, obj2)
-- see if either of the arguments are nil
local objects = isInArray({obj1, obj2}, nil, true)
-- now check if objects contains any of the objects
if next(objects) then
-- if it does cycle through them
for i = 1, #objects do
-- now check against all the enemies
if isInArray(enemies, objects[i].id) then
-- now remove the objects
display.remove(objecta[i])
end
end
end
end
local function showPlayerHit()
local tmr_onPlayerHit = timer.performWithDelay(1, playerHit, 1)
end
if event.phase == "began" then
if isInArray(enemies, event.object1.id) and event.object2.id == "character" then
showPlayerHit()
removeOnPlayerHit(event.object1, nil)
elseif isInArray(enemies, event.object2.id) and event.object1.id == "character" then
showPlayerHit()
removeOnPlayerHit(nil, event.object2)
end
end
end