Oh, my mistake. I thought "vector" referred to the STL container class, not the grid. But it's fixed 
Hello All!
I am currently writing a game that uses a double buffering system. It is a tile game and as such, I have tiles of bitmaps with a vector (hline, vline) grid. This works fine and dandy, except when I open my options menu. The options menu is a seperate class that recieves the buffer that I was using for my double buffering system to use as a background. After I pass the buffer (that may or may not be the problem) I can no longer see any of my vector graphics. I have tested this by drawing a big rect and before the options menu it appears, during and after the otpions menu it doesn't. Is there some form of incompatability that I am just not aware of?
Thanks
]]>I recommend you post the code relating to this problem.
--- Kris Asick (Gemini)
--- http://www.pixelships.com
Without code it is kind of difficult to understand what might be the problem.
Please post the code that deals is revelant to the menu switching.
It works until this point:
menu = new CMenu(filename, challenge, buffer);
int ret = menu->loop();
if(ret == OK)
{
cleanUp();
setupGame(menu->getChallenge());
setupBitmap(menu->getFile());
}
delete menu;
menu = NULL;
This is the constructor of my CMenu class:
CMenu::CMenu(string name, int chal, BITMAP *back)
{
background = back;
challenge = chal;
file = name;
state = LOOP;
init();
}
From this point on, no vector graphics will appear.
]]>Probably something to do with CMenu::Init(), but you should show the code for your bitmap tile class as well.
Or, if you don't mind, you should attach all of your code into a ZIP/RAR file and post that.
You'd be surprised how completely unrelated a problem can be to where it occurs.
--- Kris Asick (Gemini)
--- http://www.pixelships.com
Also, use code tags when you post it.
]]>Here is my CMenu::init() function. If there is a problem, I assume that it is here. The only different thing about this is the use of alpha blending for effect, maybe I need to turn alpha mode off afterwards?
| 1 | void CMenu::init() |
| 2 | { |
| 3 | //bitmap init |
| 4 | okButton = NULL; |
| 5 | cancelButton = NULL; |
| 6 | imageText = NULL; |
| 7 | challengeText = NULL; |
| 8 | optionSquare = NULL; |
| 9 | optionsBack = NULL; |
| 10 | buffer = NULL; |
| 11 | imageHighlight = NULL; |
| 12 | easyText = NULL; |
| 13 | mediumText = NULL; |
| 14 | hardText = NULL; |
| 15 | |
| 16 | okButton = load_bitmap("images/okButton.bmp", NULL); |
| 17 | cancelButton = load_bitmap("images/cancelButton.bmp", NULL); |
| 18 | imageText = load_bitmap("images/imageText.bmp", NULL); |
| 19 | challengeText = load_bitmap("images/challengeText.bmp", NULL); |
| 20 | easyText = load_bitmap("images/challengeText.bmp", NULL); |
| 21 | mediumText = load_bitmap("images/challengeText.bmp", NULL); |
| 22 | hardText = load_bitmap("images/challengeText.bmp", NULL); |
| 23 | |
| 24 | //sprite sheet |
| 25 | imageSelect = load_bitmap("images/sheet.bmp", NULL); |
| 26 | |
| 27 | buffer = create_bitmap(SCREEN_W, SCREEN_H); |
| 28 | optionsBack = create_bitmap(SCREEN_W, SCREEN_H); |
| 29 | optionSquare = create_bitmap(SCREEN_W - 10, 200); |
| 30 | BITMAP *alpha = create_bitmap(SCREEN_W, SCREEN_H); |
| 31 | imageHighlight = create_bitmap(130, 130); |
| 32 | |
| 33 | //initialize them |
| 34 | clear_bitmap(buffer); |
| 35 | clear_to_color(alpha, makecol(200, 200, 200)); |
| 36 | clear_to_color(optionSquare, makecol(82, 120, 189)); |
| 37 | clear_to_color(imageHighlight, makecol(25, 25, 25)); |
| 38 | |
| 39 | //prep options for trans |
| 40 | int x, y, c, a; |
| 41 | //set the alpha channel blend values |
| 42 | drawing_mode(DRAW_MODE_TRANS, NULL, 0, 0); |
| 43 | set_write_alpha_blender(); |
| 44 | //blend the two bitmap alpha channels |
| 45 | for (y=0; y<alpha->h; y++) { |
| 46 | for (x=0; x<alpha->w; x++) { |
| 47 | //grab the pixel color |
| 48 | c = getpixel(alpha, x, y); |
| 49 | a = getr(c) + getg(c) + getb(c); |
| 50 | //find the middle alpha value |
| 51 | a = MID(0, a/2-128, 255); |
| 52 | //copy the alpha-enabled pixel to the sprite |
| 53 | putpixel(optionsBack, x, y, a); |
| 54 | } |
| 55 | } |
| 56 | destroy_bitmap(alpha); |
| 57 | } |
]]>
You haven't posted a single line of code that has anything to do with vectors.
[append]
But yeah, drawing_mode needs to be called again with DRAW_MODE_SOLID.
You haven't posted a single line of code that has anything to do with vectors.
Irrelevant. Me writing a line of code to draw a vector graphic will do nothing to show that it does not show up.
At any rate:
But yeah, drawing_mode needs to be called again with DRAW_MODE_SOLID.
this was the fix. Thank you
]]>Oh, my mistake. I thought "vector" referred to the STL container class, not the grid. But it's fixed