Index|iOS|Android|Windows Phone|Forums|Java|.NET
Label: corona android iphone ipad building error inmobi problem display screen View image tableView failed object physics touch button game lua config event listener

Multiple object Drag

I have to objects that go in to different hitSpots (left wing and right wing to a rocket ship) 

1
2
3
4
5
6
7
8
9
10
11
12
13

local wingl = display.newImageRect("wingL.png", 67, 67)
wingl.x = 100; wingl.y = 360
 
local wingr = display.newImageRect("wingR.png", 67, 67)
wingr.x = 200; wingr.y = 360
 
local hitspotR = display.newImageRect("hitSpot.png", 44, 74)
hitspotR.x = 183; hitspotR.y = 690
hitspotR.alpha = .3
 
local hitspotL = display.newImageRect("hitSpot.png", 44, 74)
hitspotL.x = 120; hitspotL.y = 690
hitspotL.alpha = .3

Where are leftX, leftY, rightX and rightY defined?

What code are you using for the right wing? This code will only test the left hitspot:

if hitTestObjects(t, hitspotL) == true then

I defined leftX , leftY, rightX, and rightY on top. For the right wing I have a hitSpotR.

should I then wright something like this if hitTestObjects(t, hitspotL, hitspotR) == true then

Here is the full code so you can take a look.. 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91

local leftX = 100
local leftY = 360
 
local rightX = 200
local rightY = 360
 
local screenW = display.contentWidth
local screenH = display.contentHeight
 
local BG = display.newImageRect("background.png", 1024, 768)
BG.x = screenW/2;  BG.y = screenH/2 
 
 
local body = display.newImageRect("Body.png", 46, 149)
body.x = 150; body.y = 650
 
local planet = display.newImageRect("Planet.png", 114, 114)
planet.x = 150; planet.y = 150
 
local wingl = display.newImageRect("wingL.png", 67, 67)
wingl.x = 100; wingl.y = 360
 
local wingr = display.newImageRect("wingR.png", 67, 67)
wingr.x = 200; wingr.y = 360
 
local hitspotR = display.newImageRect("hitSpot.png", 44, 74)
hitspotR.x = 183; hitspotR.y = 690
hitspotR.alpha = .3
 
local hitspotL = display.newImageRect("hitSpot.png", 44, 74)
hitspotL.x = 120; hitspotL.y = 690
hitspotL.alpha = .3
 
 
function hitTestObjects(obj1, obj2)
        local left = obj1.contentBounds.xMin <= obj2.contentBounds.xMin and obj1.contentBounds.xMax >= obj2.contentBounds.xMin
        local right = obj1.contentBounds.xMin >= obj2.contentBounds.xMin and obj1.contentBounds.xMin <= obj2.contentBounds.xMax
        local up = obj1.contentBounds.yMin <= obj2.contentBounds.yMin and obj1.contentBounds.yMax >= obj2.contentBounds.yMin
        local down = obj1.contentBounds.yMin >= obj2.contentBounds.yMin and obj1.contentBounds.yMin <= obj2.contentBounds.yMax
        return (left or right) and (up or down)
end
 
local function dragWing(_e)
        local t = _e.target
        
        local phase = _e.phase
        if _e.phase == "began" then
                
        
        
        local parent = t.parent
                
                display.getCurrentStage():setFocus( t )
                
                t.isFocus = true
                
                t.x0 = _e.x - t.x
                t.y0 = _e.y - t.y
        elseif t.isFocus then
                if "moved" == phase then
        
                        t.x = _e.x - t.x0
                        t.y = _e.y - t.y0
 
        elseif "ended" == phase or "cancelled" == phase then
        
          if hitTestObjects(t, hitspotL) == true then
                         
                                
                                display.getCurrentStage():setFocus( nil )
                                t.isFocus = false               
                                
                else
                             print ( "missed target" )
                                wingl.x = leftX
                                wingl.y = leftY
                                
                                wingr.x = rightX
                                wingr.y = rightY
                                display.getCurrentStage():setFocus( nil )
                                 t.isFocus = false
                    end
                end
        end     
        
        return true
 
end
 
wingl:addEventListener("touch", dragWing)
wingr:addEventListener("touch", dragWing)

It would be more like:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

local function dragWing(_e)
        local t = _e.target
        
        local phase = _e.phase
        if _e.phase == "began" then
                
        
        
        local parent = t.parent
                
                display.getCurrentStage():setFocus( t )
                
                t.isFocus = true
                
                t.x0 = _e.x - t.x
                t.y0 = _e.y - t.y
        elseif t.isFocus then
                if "moved" == phase then
        
                        t.x = _e.x - t.x0
                        t.y = _e.y - t.y0
 
        elseif "ended" == phase or "cancelled" == phase then
        
          if (hitTestObjects(t, hitspotL) == true) or (hitTestObjects(t, hitspotR) == true) then
                         
                                
                                display.getCurrentStage():setFocus( nil )
                                t.isFocus = false               
                                
                else
                             print ( "missed target" )
                                wingl.x = leftX
                                wingl.y = leftY
                                
                                wingr.x = rightX
                                wingr.y = rightY
                                display.getCurrentStage():setFocus( nil )
                                 t.isFocus = false
                    end
                end
        end     
        
        return true
 
end

Thank you so much Rob!!! You are the best!! Good luck with your truck.

My truck wouldn't start a couple weeks back because the battery was to dirty and it didn't recognize the connection.

Thanks!

Jake

My truck problems is fuel related. Its either a clogged fuel filter, bad fuel sending unit or a bad fuel pump.

Hey Rob how can you help me with a print statement telling if the right wing has been "repaired" or left wing

In this area 

1
2
3
4
5

  elseif "ended" == phase or "cancelled" == phase then
        
          if (hitTestObjects(t, hitspotL) == true) or (hitTestObjects(t, hitspotR) == true) then
                         
                               print("target hit")

I thought you might want to do that.

1
2
3
4
5
6
7
8
9
10

local hitLeft = hitTestObjects(t, hitspotL)
local hitRight = hitTestObjects(t, hitspotR)
 
if (hitLeft == true) or (hitRight == true) then
    if hitLeft then
           print("left")
    else
           print("right")
    end
                               print("target hit")

Thank you so much Rob! You are the man!

Now How can I tell print a statement telling me that both wings have been placed in each hit spot?

Like for instance if I place the right wing its hit spot and then the left wing in its hit spot I want a print statement telling me that the rocket has been fixed... So that I can replace the body and the wings with a put together rocket ship..

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

local hitLeft = hitTestObjects(t, hitspotL)
local hitRight = hitTestObjects(t, hitspotR)
 
if (hitLeft == true) or (hitRight == true) then
    if hitLeft then
           print("left")
    else
           print("right")
    end
    print("target hit")
 
    if hitLeft and hitRight then
        print("both wings in place")
    end
 
end

How come it doesn't work when I add a removeSelf to it?

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

if (hitLeft == true) or (hitRight == true) then
                                if hitLeft then
                                        print("left")
                                        wingl:removeSelf()
                                        --rocketShip:play("rocketShip leftWing")
                                else
                                          print("right")
                                          wingr:removeSelf()
                                          --rocketShip:play("rocketShip rightWing")
                                end
                    
                    if hitLeft and hitRight then
                                --rocketShip:play("rocketShip repairedShip")
                             print("both wings in place")
                    end  
                   

I want to give the player the feeling wings are being attached

I THINK I SOLVED IT!! give me two shakes of a lames tail to mess around.

I SOLVED IT!! CHECK IT OUT ROB!! 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127

display.setStatusBar( display.HiddenStatusBar ) -- HIDE STATUS BAR
 
local loqsprite = require('loq_sprite')
 
local leftX = 100
local leftY = 360
 
local rightX = 200
local rightY = 360
 
local screenW = display.contentWidth
local screenH = display.contentHeight
 
local BG = display.newImageRect("background.png", 1024, 768)
BG.x = screenW/2;  BG.y = screenH/2 
 
--[[
local body = display.newImageRect("Body.png", 46, 149)
body.x = 150; body.y = 650
]]
 
local rfactory = loqsprite.newFactory("rocketShip")
local rocketShip = rfactory:newSpriteGroup()
rocketShip.x = 30; rocketShip.y = 432
rocketShip:play("rocketShip body")
 
atrace(xinspect(rocketShip:getSpriteNames()))
 
local planet = display.newImageRect("Planet.png", 114, 114)
planet.x = 150; planet.y = 150
 
local wingl = display.newImageRect("wingL.png", 67, 67)
wingl.x = 100; wingl.y = 360
 
local fixL = display.newImageRect("wingL.png", 67, 67)
fixL.x = 132; fixL.y = 680
fixL.alpha = 0
 
local fixR = display.newImageRect("wingR.png", 67, 67)
fixR.x = 172; fixR.y = 680
fixR.alpha = 0
 
local wingr = display.newImageRect("wingR.png", 67, 67)
wingr.x = 200; wingr.y = 360
 
local hitspotR = display.newImageRect("hitSpot.png", 44, 74)
hitspotR.x = 183; hitspotR.y = 690
hitspotR.alpha = 0
 
local hitspotL = display.newImageRect("hitSpot.png", 44, 74)
hitspotL.x = 120; hitspotL.y = 690
hitspotL.alpha = 0
 
function hitTestObjects(obj1, obj2)
        local left = obj1.contentBounds.xMin <= obj2.contentBounds.xMin and obj1.contentBounds.xMax >= obj2.contentBounds.xMin
        local right = obj1.contentBounds.xMin >= obj2.contentBounds.xMin and obj1.contentBounds.xMin <= obj2.contentBounds.xMax
        local up = obj1.contentBounds.yMin <= obj2.contentBounds.yMin and obj1.contentBounds.yMax >= obj2.contentBounds.yMin
        local down = obj1.contentBounds.yMin >= obj2.contentBounds.yMin and obj1.contentBounds.yMin <= obj2.contentBounds.yMax
        return (left or right) and (up or down)
end
 
local function dragWing(_e)
        local t = _e.target
        
        local phase = _e.phase
        if _e.phase == "began" then
                
        
        
        local parent = t.parent
                
                display.getCurrentStage():setFocus( t )
                
                t.isFocus = true
                
                t.x0 = _e.x - t.x
                t.y0 = _e.y - t.y
        elseif t.isFocus then
                if "moved" == phase then
        
                        t.x = _e.x - t.x0
                        t.y = _e.y - t.y0
 
        elseif "ended" == phase or "cancelled" == phase then
        
         local hitLeft = hitTestObjects(t, hitspotL)
                 local hitRight = hitTestObjects(t, hitspotR)
 
                        if (hitLeft == true) or (hitRight == true) then
                                if hitLeft then
                                        print("fixed left")
                                        wingl:removeSelf()
                                        fixL.alpha = 1
                                else
                                          print("fixed right")
                                          wingr:removeSelf()
                                          fixR.alpha = 1
                                
                                end
                    
                    if hitLeft and hitRight then
 
                             print("both wings in place")
                    end  
                   
                                display.getCurrentStage():setFocus( nil )
                                t.isFocus = false               
                                
                else
                             print ( "missed target" )
                                wingl.x = leftX
                                wingl.y = leftY
                                
                                wingr.x = rightX
                                wingr.y = rightY
                                display.getCurrentStage():setFocus( nil )
                                 t.isFocus = false
                    end
                end
        end     
        
        return true
 
end
 
wingl:addEventListener("touch", dragWing)
wingr:addEventListener("touch", dragWing)
views:1731 update：2011/10/4 8:06:35
 热门文章
GameCenter LeaderBoards and Achievements Enabled Through OpenFeint
send message and call to a person
Forum: Report Spam + PM
[INSTALL_PARSE_FAILED_NO_CERTIFICATES]
[SOLVED] Director ERROR: Failed to execute new( params ) function on 'screen1'
Too many (200) local variables
Corona SVG Level Builder released. Drag and drop physics level editor with Inkscape and SVG.
Small bug in Collectible Items example
Pivot Joints and apparent elasticity
Can't make removeSelf() delayed
 相关文章
Need your App Videos
Detecting the ACTUAL screensize of the device
OpenFeint in Android game
Choppy loops using .mp3?
URGENT - Universal Build Job [PAID]
Static Body Collision
Need help to deauthorize
Need a Droid 2, Droid X or Nexus S tester!
Build for distribution with CFBundleIdentifier in build.settings
How to detect a swipe?
corona forums © 2003-2011