Interface And Graphics :: Collision Detection And DirectDraw?
Aug 28, 2009
I'm using DirectDraw to create a (very) simple little movement game... (so far not really a game, but hey, gotta start somewhere) And I'm having a little trouble with my collision detection... ok, it's probably not conventional collision detection, but I'm just learning so far...I have a few surfaces set up etcetc, and have animated a sprite on a tile based background... but the problem is whenever I collide with a certain tile (which I've set as unpassable) from the top or the left, it screws the position of my player immensely... this is quite a headache as I can't seem to see a problem...
ps. Another thing, I can't seem to be able to open my pictures without using the entire directory.
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May 22, 2010
I want to be able to do collision detection with graphics and a picturebox. I have a character that is moving on the screen and I have drawn both the background and the character using graphics. I have put a picturebox in place of the block that is suppose to be like a square which the character has to jump over. How would I do this?
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Nov 28, 2008
I found a tutorial for DirectDraw online and can get a sprite shown on the screen. Problem is that when I try to make the edges transparent nothing I have tried works. Here is the code
Code:
Public Sub InitializeGraphics()
GraphicsCard = New Device 'This will initi
[code]......
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Sep 23, 2011
We have a GIS application that has some performance issues. It creates and sends an image to a web browser. We start with a Bing Maps imager, add complex polygons (complete with transparent fill), save the finished image as a PNG, and send it to the browser.
The idea has come up that we could possibly install a graphics card and use DirectX or OpenGL to improve performance. I believe this would be the case even though we ultimately generate an image instead of sending the data the the screen. I believe our processes could still make use of the API and the hardware acceleration it provides. Our process is not unlike what CGI film makers do to render individuals frames of a film, though we simply render a single image and send it, as opposed to the hundreds of thousands of images needed for a single CGI film.
So my question is: would a powerful graphics card and use of DirectDraw or OpenGL provide us a worthwhile performance boost? It can take us 20-30 seconds to render a more complex map. Which is a long time to wait on a web page...
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Aug 22, 2009
What is the best way for collision detection? I keep trying but I have failed every time.I want my player to not be able to go through my pictureboxes/obstacles from ALL sides.I have 2 player movement down but now I need collision detection. I am trying to save player2's location with a timer using a variable for the location then check if player2 (picturebox2) intersects with picturebox3. If it does then picturebox2 will go back to the location.
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Nov 8, 2009
I need help with collision detection in visual basic. I am trying to detect when a picture box hits another picture box. The code I'm using is very simple because I'm very much a beginner.
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If Math.Abs(PictureBox2.Left - PictureBox1.Right) And Math.Abs(PictureBox2.Top - PictureBox1.Bottom) Then
MessageBox.Show("You Are Dead")
End If
End Sub
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Apr 28, 2009
I am trying to do simple collision detection in VB.NET using picture boxes, I have a fixed picturebox, (colour Green), and a moving picturebox, (colour Red). I can manage the collision detection OK, but how do make the movingpicture box bounce off the fixed picturebox and at the right angle? In the following code the moving picturebox sometimes passes right through the fixed one, but not everytime.
ublic Class Form1
Private RedXSpeed As Single = 5
Private RedYSpeed As Single = 5
[code].....
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Feb 23, 2012
Let me just start off saying that I'm generally new to all programming so if my coding is painful to read I understand. I am currently working on a project that relies on perfect or near perfect collision detection, and I'm not sure whats wrong but sometimes the object being moved completly passes through the object it is supposed to collide at. Here's my coding relating to collision detection so far:
[Code]...
Also, the object, toon, is set to jump with a timer at an interval of 45. Any input regarding how I could make the overall collsion detection better or if I didnt provide the right section of code let me know.
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Dec 21, 2011
i have 3 PicBoxes on a form. PicBox1=sprite PicBox2=Block1 PicBox3=Block2 I have figured out sprite movement on key down and have figured out simple collision detection for all 4 sides of Block1. My question(s) are:
is there an ideal way to create a method that can be called to handle the collision for all future PicBox's added instead of writting code independently for each key press and each NewBlock along with all 4 sides of the NewBlocks?If I created 100 PicBoxes as obsticles too create a maze type game for my Sprite to navigate through?
[Code]...
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Apr 7, 2012
I'm designing a system to detect whether a projectile arc impacts a stationary square target. However, the detection is very limited and only seems to work if I use a while loop and a very large area, whereas if possible I'd prefer to animate it using a for loop and have the target somewhat smaller.Here's what I have at present:
Private Sub Timer2_Tick(sender As System.Object, e As System.EventArgs) Handles Timer2.Tick
If (Not errorState2) Then
[code].....
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Nov 7, 2011
I am currently working on a game with collisions. I am using a picturebox with an animated gif in the Image property. I am currently using the following function call to detect collision:
pictureboxPlayer.Bounds.IntersectsWith(pictureboxOfBadGuy.Bounds)
When an pictureboxOfBadGuy collides with some of the whitespace of my picturboxPlayer the above line returns true. Does anyone know if VB has detection for images within a pictureBox.
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May 29, 2010
I have two rectangles; a character and a block. The character is suppose to jump onto the block and then either jump off it or walk off it. I am really getting frustrated with this because I cannot get it to work.
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Jul 1, 2010
I have two questions.
1- I have two labels on a form, that I want to move randomly in the form. How can I do that?
2- How to work with collision detection in VB?
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Feb 25, 2012
I'm trying ot make a top down rpg, or pokemon like game, but I can't find any proper tutorials for collision detection. I have found one, but when I did it it doesn't seem to work properly, and I get errors everytime I go to the edge of the form. What I can do to make good collision detection for walls?
HTML Code:
Public Class Form1
Public Level1 As New clsLevel()
Public Dude As New clsSprite(Level1)
Dim CanWalk As Boolean = True
[Code] ......
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Aug 11, 2010
I have loaded two mesh's from .x files onto the screen, a map and a sprite. The sprite moves around, but because they aren't colliding the sprite goes straight through the mountains, and straight over the undulations. I have looked for a way to find the co-ordinates of a particular spot on the mesh, as I figured by finding the X and Z co-ordinates of the sprite, I could just set his Y co-ordinate to be the same as the map, and he would 'stick' to the ground... however I don't know if this is possible, and I haven't found it yet.
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Dec 28, 2010
Basically, i'm creating a space invaders like-game that is 2D Mario-themed (sprites used). I am using a panel for my enemies and Mario is being controlled by the movement of arrow keys and space button shoots.The problem is I can not make my bullets collide with the enemies to make them disappear.This piece of code is what i've got so far with the collision detection :
'*******************************************************************************************************
' Collision occurs whenever the pctShoot(podoboo) hits any of the enemy
' When blnTrue, both pctShoot and the enemy disappear '*******************************************************************************************************
[code]....
While I'm at it, i have another question in concern; but this is not really related to collision but:How do you make an object move down automatically using a timer but make it appear randomly??Like any space invader game, the enemies are shooting back at the hero to make it appear more challenging right?
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Jan 12, 2010
Lately I have been making a platformer game, just to experiment and see how it would work, and after making two very basic levels I realized that it would take a lot of code to include several or more platforms.
[Code]...
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Dec 7, 2010
how to do collision. my previous attempts involved trying to see if the player was touching -any- non-collidable object, but i've reversed it so that objects themselves detect if the player is interacting with them and respond appropriately. i still cannot find a way to completely stop the player from walking into walls, but this is what i have so far.
Public Class mymap
'movement function/class/etc?
Private Sub mymap_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
Dim Loc As Point
[code].....
is there a way to put a sub in a sub? see notes in the code above and hopefully you'll see what i mean.d last of the craziness, are global variables possible? i can't seem to find a tut on them. in the passable sub it doesn't recognize the tiles variable and says it isn't declared, though it is declared in the hedge1 sub.
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Dec 28, 2010
i've looked up several tutorials on what i should do to create a collision detection, but im not too positive on how to function my ideas and convert them to code.Basically, i'm creating a space invaders like-game that is 2D Mario-themed (sprites used).I am using a panel for my enemies and Mario is being controlled by the movement of arrow keys and space button shoots.The problem is I can not make my bullets collide with the enemies to make them disappear. This piece of code is what i've got so far with the collision detection :
Code:
'*******************************************************************************************************************************************************
' Collision occurs whenever the pctShoot(podoboo) hits any of the enemy
' When blnTrue, both pctShoot and the enemy disappear
[code].....
While I'm at it, i have another question in concern; but this is not really related to collision but:How do you make an object move down automatically using a timer but make it appear randomly?Like any space invader game, the enemies are shooting back at the hero to make it appear more challenging right?(using Visual Basic 2008)
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Nov 19, 2010
Im working on a project that needs to print a report of one client.Everything went smooth untill i came across my multiline input text data.When i display it in the PrintPagePreview the text go's outside my page. Even when im printing it only the halve of my text is displayed. I googled and looked everywhere but i can't get a clear fix for it.
[Code]...
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Jan 22, 2011
I used to program with Visual Basic 6, so I have alot of old programs that I'm updating, plus I'm learning the new VB2008 methods. I'm writing a program that replaces the old "BitBlit" function which is no longer supported by Visual Basic 2008. It involves three picture boxes, one holds the sprite bitmap, a second holds the mask (silhouette) of the sprite bitmap, and a third has a background image.
[Code]...
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Aug 14, 2009
drawing text on a window which is not the current form's window.I remember doing this in Win32 api with getwindowdc(handle) to obtain a DC for the Window, then textout() on the DC.
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Jan 12, 2010
how to create a user interface in a game such as the application XFire using Visual Basic?
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Oct 19, 2008
I'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.
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Jan 12, 2011
Ok, I want to create a class that will handle a special rectangle graphic.In my form, I want to have two of these special rectangles. So, basically, I need two instances of that class in my form, right?I manage to initialize two, alright. But, how exactly am I supposed tomanage drawing/graphics etc in a class, and the results to be displayed in my form?
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Oct 29, 2008
Using graphics paths for designing...but am getting an error when trying to add a shape to : _shapelist.add(createshape())
It says : Value of type 'system.drawing.drawing2d.graphicspath' cannot be converted to '1-dimensional array of system.drawing.drawing2d.graphicspath'
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May 18, 2012
I was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?
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Apr 21, 2010
I'm trying to make a .dll that contains a lot of basic functionality that a program can use. Currently i am trying to use interfaces to make a lot of this functionallity independend of the program using it but i hit a snag. The Basic idea is that a programmer will create his own object using the interface discribed in my .DLL file. Then implements those functions as he likes. He can then instanciate a controller (found in the same DLL) and sends his custom object implementing the interface to that Controller. The controller can then be started and will take over all the work. I do not know what type of object is send to the controller and idealy i want to program it in such a fashion that i shouldn't care as long as the object send implements that interface.In code I am trying to achieve the following: (quite simplyfied)
.Dll:
Code:
Public Interface MyInterface '<----Decleration of the interfaceFunction GetData() As Integer
Function SetData(Data As Integer)
end interface
[code]....
this propperly. I know that the second i set the interface adaptor in the Controller VS comes nagging that it can not be converted to a "MyInterface" Class. Obviously i am doing something wrong. I can change the datatype that the controller expects to the "MyController" type but that would completely ruin the whole idea of flexibillity. I am hoping someone sees what i am trying to do and can point out where i made the thinking error.
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May 21, 2012
Is this where i would post a picture of my interface and get feedback on changes for easier use? If not is there someplace on this forum or any other forum to do this?
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Jan 19, 2011
So I decided to make my famous tile selector project, but instead of drawing in a form's graphics, do it inside a tabpage.Well, I managed to get it working, but it seems to... flicker.Normally, setting the form's DoubleBuffered property to True would help a lot there, but apparently, the tabpage has no such property.
When I invalidate the tabpage, I draw two images and fill one rectangle.Following past advice, those two images were created before, just once, and are stored in a variable so I don't create them every time I invalidate the tabpage.
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