Mouse Collision with Sprite and with Image Examples
Posted: Tue Jun 24, 2008 1:05 pm
I have been picking some of the best brains here and using a little of mine own to formulate these examples. I had planned to write a PBCards.dll with a nice shiny new deck for my new card game. I still might...
But I have had help chunking these together for anyone who wants to learn how to click on a sprite or on an image and get info.
Without having to have a declared procedure to check the Image Gadget to do so...
You will need to download the following file which has very low res images for these examples:
http://www.bluemesapc.com/Downloads/cursor.zip
I put the graphics in a folder called DECK/ where I was, you may have to modify that small bit of code.
The collision checking procedure in all these examples is called CheckBump() One of them is a bit simpler since I used CASE statements
First Example [[ SPRITE 2 SPRITE collision returning value and doing something to the sprite ]]
Second Example uses ImageGadgets... in a windowed screen and still returns values:
Note that this one has two different CheckBump() examples to use... I wasn't getting fancy; I simply like to use Select Case if I can... it seems in my mind to execute faster!
What I would love to do is used a Structure or Linked List to both check collision and get info... I have to learn how to use that!
But I have had help chunking these together for anyone who wants to learn how to click on a sprite or on an image and get info.
Without having to have a declared procedure to check the Image Gadget to do so...
You will need to download the following file which has very low res images for these examples:
http://www.bluemesapc.com/Downloads/cursor.zip
I put the graphics in a folder called DECK/ where I was, you may have to modify that small bit of code.
The collision checking procedure in all these examples is called CheckBump() One of them is a bit simpler since I used CASE statements
First Example [[ SPRITE 2 SPRITE collision returning value and doing something to the sprite ]]
Code: Select all
; mouse collision with sprite 2 sprite example
; Ralph W Dunn
Enumeration
#AS
#BJ
#QH
#CURSOR
#BACK
EndEnumeration
Global x
Global y
UsePNGImageDecoder()
If InitSprite() = 0 Or InitKeyboard() = 0
MessageRequester("Error", "Can't open DirectX 7 or later", 0)
End
EndIf
InitMouse()
Procedure CheckBump()
R1 = 0
R2 = 0
R3 = 0 ; make sure all flags are reset
; *** Remember: X and Y were GLOBAL so we just check them against other sprites
R1 = SpriteCollision(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2, #AS, 180, 200) ; ace location
R2 = SpriteCollision(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2, #BJ, 330, 200) ; blue joker location
R3 = SpriteCollision(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2, #QH, 480, 200) ; queen hearts location
If R1 <> 0
StartDrawing(ScreenOutput())
DrawText(330,10,"ACE of SPADES...")
StopDrawing()
DisplaySprite(#AS, 180, 200)
EndIf
If R2 <> 0
StartDrawing(ScreenOutput())
DrawText(330,10,"Blue Joker... ")
StopDrawing()
DisplaySprite(#BJ, 330, 200)
EndIf
If R3 <> 0
StartDrawing(ScreenOutput())
DrawText(330,10,"Da Queen of HEARTS!!!")
StopDrawing()
DisplaySprite(#QH, 480, 200)
EndIf
EndProcedure
Procedure CheckBump2()
; ** same as the other using SELECT
R1 = 0
R2 = 0
R3 = 0 ; make sure all flags are reset
; *** Remember: X and Y were GLOBAL so we just check them against other sprites
If SpriteCollision(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2, #AS, 180, 200) ; ace location
RR = 1
ElseIf SpriteCollision(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2, #BJ, 330, 200) ; blue joker location
RR = 2
ElseIf SpriteCollision(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2, #QH, 480, 200) ; queen hearts location
RR = 3
EndIf
Select RR
Case 1
StartDrawing(ScreenOutput())
DrawText(330,10,"LOSER...")
StopDrawing()
DisplaySprite(#AS, 180, 200)
Case 2
StartDrawing(ScreenOutput())
DrawText(330,10,"WINNER!")
StopDrawing()
DisplaySprite(#BJ, 330, 200)
Case 3
StartDrawing(ScreenOutput())
DrawText(330,10,"LOSER...")
StopDrawing()
DisplaySprite(#QH, 480, 200)
EndSelect
EndProcedure
OpenScreen(800,600, 16, "Card Game 0")
LoadSprite(#AS, "C:\Program Files\PureBasic\DEVEL\CARDZ\DECK\out.png")
LoadSprite(#BJ, "C:\Program Files\PureBasic\DEVEL\CARDZ\DECK\tap.png")
LoadSprite(#QH, "C:\Program Files\PureBasic\DEVEL\CARDZ\DECK\out.png")
LoadSprite(#CURSOR, "C:\Program Files\PureBasic\DEVEL\CARDZ\DECK\cursor.png");, #PB_Sprite_Alpha) ; Load nice small Logo 32 X 32
LoadSprite(#BACK, "C:\Program Files\PureBasic\DEVEL\CARDZ\DECK\b1.png")
Repeat
FlipBuffers()
ClearScreen(RGB(0,0,0))
DisplaySprite(#BACK, 180, 200)
DisplaySprite(#BACK, 330, 200)
DisplaySprite(#BACK, 480, 200)
ExamineMouse()
ExamineKeyboard()
x = MouseX()
y = MouseY()
DisplayTransparentSprite(#CURSOR, x-SpriteWidth(0)/2, y-SpriteHeight(0)/2)
Result = 0
If MouseButton(#PB_MouseButton_Left)
;CheckBump()
CheckBump2()
EndIf
Until KeyboardPushed(#PB_Key_Escape)
End
Code: Select all
; mouse collision with image example
; Ralph W Dunn
Global outchunk$
UsePNGImageDecoder()
#J= "DECK\"
DataSection
Image1:
IncludeBinary #J + "out.png"
Image2:
IncludeBinary #J + "tap.png"
Image3:
IncludeBinary #J + "out.png"
Image4:
IncludeBinary #J + "b1.png"
EndDataSection
Global Dim cardpos(3,3)
Global Dim cards.l(3) ;holds imageId's indexed by card#
Global Dim cardid.s(3)
cards(0)= CatchImage(#PB_Any, ?Image1) ; Ace Spades
cards(1)= CatchImage(#PB_Any, ?Image2)
cards(2)= CatchImage(#PB_Any, ?Image3)
Image4 = CatchImage(#PB_Any, ?Image4)
;arrange cards
cardPos(0,0) = 1 :cardPos(0,1) = 180 :cardPos(0,2) = 150 : cardid(0) = "YOU LOOSE"
cardPos(1,0) = 2 :cardPos(1,1) = 330 :cardPos(1,2) = 150 : cardid(1) = "WINNER"
cardPos(2,0) = 3 :cardPos(2,1) = 480 :cardPos(2,2) = 150 : cardid(2) = "LOOSER"
Procedure CheckBump(XX,YY)
For h = 0 To 2
Debug "reading: "+Str(h)
cardid = cardPos(h,w)
Xloc = cardPos(h,w+1)
Yloc = cardPos(h,w+2)
cardid$ = cardid(h)
Select XX
Case Xloc To Xloc + 140
Select YY
Case Yloc To Yloc + 200
Debug "CARD: "+Str(cardid)
Debug "** THAT CARD IS "+cardid$
StartDrawing(WindowOutput(0))
DrawImage(ImageID(cards(h)), Xloc, Yloc)
DrawText(350,10,"That Card: "+cardid$)
StopDrawing()
Delay(350) ; necessary to see the card
EndSelect
EndSelect
Next
EndProcedure
OpenWindow(0, 0, 0, 800, 600, "CARD Drawing Test")
Repeat
StartDrawing(WindowOutput(0))
DrawText(350,10," ") ; i am far too lazy to clear the screen
For Crd = 0 To 2
DrawImage(ImageID(Image4), cardPos(Crd,1), cardPos(Crd,2))
Next
StopDrawing()
event = WaitWindowEvent() ; WaitWindowEvent(22)
Gadget = EventGadget()
Type = EventType()
Window = EventWindow()
Select Event
Case #PB_Event_Gadget
Debug "Event: "+Str(#PB_Event_Gadget)
Case #PB_Event_Menu
Debug "Menu: "+Str(#PB_Event_Menu)
Case #WM_LBUTTONDOWN
Debug "LM button pressed..."
xx = WindowMouseX(0)
yy = WindowMouseY(0)
checkbump(xx,yy)
EndSelect
Until Event = #PB_Event_CloseWindow
End
What I would love to do is used a Structure or Linked List to both check collision and get info... I have to learn how to use that!