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About hstubbs3

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  1. Collection of Models question

    If there is some limit on the number of objects, you could allocate a static array, and then loop through it when you need to edit / draw /etc ( just skip any of the objects / pointers that are "null" or otherwise aren't valid at the time.. ) otherwise - creating a dynamic container - vector, list, etc.. and iterate on it.. it sounds like you are getting accessviolation exception trying to go beyond bounds of the original array? or how are you trying to create the array of buffers ( or use it - where is the exception coming from ?? )
  2. Spherical gradient

    for the 2nd part of the question - move the center point without affecting the gradient itself... Just move the center point... example - your new 'center' is (0, .5 , 0) .. so subtract .5 from Y and look up the value there.. Generalized, a function f of vertex P [ f(p) ]can be solved at a new 'center' c using f(p - c) .. Written out longform this means substituting ( pX - cX ) everywhere you were using just X before, same with Y and Z. As for the 1st part.. should just be sqrt(x^2 + y^2 + z^2 ) - the gradients would change according to sphere radius.. like layers of an onion.. So ( 0,0,0 ) is black core.. ( 0, 1, 0 ) is white point ( "north pole" )
  3. [OOP] Two classes that can acces each other's members

    Oops.. forgot the last bit as well... So - if any combatant needs info on another combatant, it just accesses the base-class ( or higher class through an interface / virtual function ).. No combatant knows or cares what is "brains" - only if they are "friend" or "foe" or if they're attacking, etc.. etc..
  4. [OOP] Two classes that can acces each other's members

    "Player" and "Enemy" don't sound like distinct classes to me - they are "combatant" "Combatant" has speed, position, possibly weapons, inventory, etc.. Then "Player" is a class derived from "Combatant" - uses input (keyboard,mouse, etc.) to change animations, positions, etc. And "Enemy" is also class derived from "Combatant" - but this uses AI to drive it... This would also allow later for AI characters to fight on either side, or possibly have multiple factions... And networked / LAN players could be derived as well...
  5. Super Mario Kart Theory?

    It was a camera "trick" of sorts - the Super NES had "mode 7" to handle the character sprites, scaling and what-not... The track was just raycast, probably tile-based too. . . The was a DOS shareware game that had similar look/feel to Super Mario Kart - Wacky Wheels . . you might be able to find source codes and such googling for that..
  6. Making a personal guitar hero

    there's filters you can try and pull out the guitar part.. otherwise, maybe if you just used MIDI of the songs?? as for the note storage... why not MP3, with a file containing the offsets for each note, so the prog knows how long to cut out the song if you screw up.
  7. Home Recording

    I'd say you have a good bet.. then again, just check dell.com 's support section for your system's specs..
  8. Collision detection formula math

    without double-checking the equation (b/c working in a factory just sucks it out of you... ) there's 3 possible scenarios.. not 2.. a) no intersection - iirc your square root will be imaginary (so first check make sure that whats under it isn't negative...) b) 1 intersection (square root is 0) - the moving circle becomes *tangent* to the second one at some instant.. c) 2 intersections - (square root +/-) - first collision is smallest t > 0 . negative t means movement backwards...
  9. What license should I use?

    um... the FreeWare one... :-P ie - somewhere in your distribution you put the license agreement (something along the terms of - this software is MINE and all shall hail me for writing it, but you can pass this piece of programmed excellence freely. . . in fact, you should do so, because then when you see my name on another awesome game you will not question its quality. . and NO you may not get the source code for this project or reverse engineer it for any purpose. ... ) EDIT - darn it, i was too busy being egotistical and got beat .. . lol
  10. why does DX3D 9 not like my code :-(

    as for the For loop... ok, so i'm an idiot... but even fixing that i still have an issue... first-chance exception - Microsoft C++ exception: long at memory location 0x0012fd08 ... somewhere in DrawPrimitive ... the prorated loop was originally intended to limit to about 50fps . . . i was gonna eventually animate these things. . then it was crashing out on an unhandled exception so i put a messagebox in there and it was crazy.. lol. . so yeah.. . 1000 is way too long to wait usually... but still kinda lost.. Oops.. . left out setstreamsource .. . heh... ok. . so now i don't have exceptions,.... still just black.. got to check the winding of the polys or something i guess... thanks for the help tho ....
  11. why does DX3D 9 not like my code :-(

    thx for the tag thingy.. . still lost on the error though :-/ might just try and simplify until it works... meh. .
  12. I'm just lost... I'm just messing around with some code (i'm more noob than I realised... ) that's supposed to render several squares (32x32 px) in just white using 2 triangles per... and its just not working... first I was getting a read access violation trying to lock my vertex buffer, which is stored in a global pointer (never mind how evil that is, give me a break) ... in my message pump i had a call to a function called render_frame() that would copy the vertex list to the buffer for rendering. . . the buffer is created in winmain ... debugging just stopped at buffer->lock(0,0,(void**)pVoid,0); (in render_frame() ) with the violation address being pVoid + 0x10 .. ?? .... I moved the contents of render_frame to just be in winmain's message loop, and now i just get first-chance exception - long at memory location. . i think its &pVoid.. I'm just confused by that all. . anyways, here my code. . . note - I currently do get a window which is just black, 640x480 ... that much of my code works (its framework from me following a tut on d3d9 .. ) //we'll include windows and directX headers in luci.h! #include "luci.h" #define NUM_BOXES 15 #define CUSTOMFVF (D3DFVF_XYZRHW | D3DFVF_DIFFUSE) struct myvertex{ FLOAT x,y,z,rhw; DWORD color;}; struct MyMove { FLOAT x, y; }; struct MyBox{ FLOAT left, up, right, down; MyMove V; DWORD color; } ; // color=D3DCOLOR_XRGB(0, 0, 255) MyBox TheBoxes[NUM_BOXES]; myvertex BoxPolys[NUM_BOXES][6]; int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int CmdShow) { if(LuciCreateMainWindow(hInstance, CmdShow, false,640,480)) return 1; initD3D(); LPDIRECT3DVERTEXBUFFER9 triangle_buf=NULL; d3ddev->CreateVertexBuffer(6*NUM_BOXES*sizeof(myvertex),0,CUSTOMFVF, D3DPOOL_MANAGED,&triangle_buf,NULL); int b=0; float screen_x=8; float screen_y=8; for(int y=0; y<(NUM_BOXES/15)+1; y++) { screen_y+=40; screen_x=8; for(int x=0; x<15; x++) { screen_x+=40; TheBoxes[b].left=screen_x-16.0f; TheBoxes[b].up=y-16.0f; TheBoxes[b].right=x+16.0f; TheBoxes[b].down=y+16.0f; TheBoxes[b].color=D3DCOLOR_XRGB(255, 255, 255); b++; } } MSG msg; DWORD starting_point; bool DeviceLost=false; HRESULT DeviceErrCode; while( TRUE ) { starting_point = GetTickCount(); if(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { if (msg.message == WM_QUIT) break; TranslateMessage(&msg); DispatchMessage(&msg); } if(DeviceLost) { DeviceErrCode = d3ddev->TestCooperativeLevel(); if(DeviceErrCode == D3DERR_DEVICENOTRESET) { if(d3ddev->Reset(&d3dpp)==D3D_OK) DeviceLost=false; } } if(!DeviceLost) { for(int i=0; i<NUM_BOXES; i++) { BoxPolys[i][0].color=BoxPolys[i][1].color=TheBoxes[i].color; BoxPolys[i][2].color=BoxPolys[i][5].color=TheBoxes[i].color; BoxPolys[i][0].x=TheBoxes[i].left; BoxPolys[i][0].y=TheBoxes[i].up; BoxPolys[i][1].x=TheBoxes[i].right; BoxPolys[i][1].y=TheBoxes[i].up; BoxPolys[i][2].x=TheBoxes[i].left; BoxPolys[i][2].y=TheBoxes[i].down; BoxPolys[i][3]=BoxPolys[i][2]; BoxPolys[i][4]=BoxPolys[i][1]; BoxPolys[i][5].x=TheBoxes[i].right; BoxPolys[i][5].y=TheBoxes[i].down; } //triangle creation code VOID *pVoid; triangle_buf->Lock(0,0,(void**)&pVoid,0); memcpy(pVoid,BoxPolys,sizeof(BoxPolys)); triangle_buf->Unlock(); d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0,0), 1.0f, 0); d3ddev->BeginScene(); d3ddev->DrawPrimitive(D3DPT_TRIANGLELIST,0,NUM_BOXES*2); d3ddev->EndScene(); if(d3ddev->Present(NULL, NULL, NULL, NULL)!=D3D_OK) { DeviceLost=true; } } while((GetTickCount() - starting_point) < 1000) ; } triangle_buf->Release(); closeD3D(); // LuciMB(L"Exiting Now"); return msg.wParam; } LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { case WM_DESTROY: { PostQuitMessage(0); return 0; } break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } [Edited by - hstubbs3 on June 21, 2008 8:50:01 PM]
  13. Screen space movement

    they're moving the same vector in world-space, but on-screen that translates into moving away from the 'vanishing point' . . if the character should really be moving per the screen and isn't in the middle, you'd have to skew Z axis movement towards the camera .... ie - "right" is right and "left" is left.. .but down is vector pointing towards camera's projection into the movement plane, and up its opposite... i mean, if camera is at (0,10,0) and movement is considered on the ground plane then you're pointing at (0,0,0) wait.. i just went cross-eyed... Whheeeeeeeeee!
  14. create a fighting game

    you should be more specific..... wait.. hell no. . I got a better one... never mind visual studio.. isn't there an open source project that lets you make your own 2d fighting game stuff??? spekin de which. .. you mean MK1 right??? don't you need actors for that? and video cameras? ? ?