hge_tut03.cpp
资源名称:hge181.rar [点击查看]
上传用户:jnfxsk
上传日期:2022-06-16
资源大小:3675k
文件大小:4k
源码类别:
游戏引擎
开发平台:
Visual C++
- /*
- ** Haaf's Game Engine 1.8
- ** Copyright (C) 2003-2007, Relish Games
- ** hge.relishgames.com
- **
- ** hge_tut03 - Using helper classes
- */
- // Copy the files "particles.png", "menu.wav",
- // "font1.fnt", "font1.png" and "trail.psi" from
- // the folder "precompiled" to the folder with
- // executable file. Also copy hge.dll and bass.dll
- // to the same folder.
- #include "....includehge.h"
- #include "....includehgesprite.h"
- #include "....includehgefont.h"
- #include "....includehgeparticle.h"
- // Pointer to the HGE interface.
- // Helper classes require this to work.
- HGE *hge=0;
- // Pointers to the HGE objects we will use
- hgeSprite* spr;
- hgeSprite* spt;
- hgeFont* fnt;
- hgeParticleSystem* par;
- // Handles for HGE resourcces
- HTEXTURE tex;
- HEFFECT snd;
- // Some "gameplay" variables
- float x=100.0f, y=100.0f;
- float dx=0.0f, dy=0.0f;
- const float speed=90;
- const float friction=0.98f;
- // Play sound effect
- void boom() {
- int pan=int((x-400)/4);
- float pitch=(dx*dx+dy*dy)*0.0005f+0.2f;
- hge->Effect_PlayEx(snd,100,pan,pitch);
- }
- bool FrameFunc()
- {
- float dt=hge->Timer_GetDelta();
- // Process keys
- if (hge->Input_GetKeyState(HGEK_ESCAPE)) return true;
- if (hge->Input_GetKeyState(HGEK_LEFT)) dx-=speed*dt;
- if (hge->Input_GetKeyState(HGEK_RIGHT)) dx+=speed*dt;
- if (hge->Input_GetKeyState(HGEK_UP)) dy-=speed*dt;
- if (hge->Input_GetKeyState(HGEK_DOWN)) dy+=speed*dt;
- // Do some movement calculations and collision detection
- dx*=friction; dy*=friction; x+=dx; y+=dy;
- if(x>784) {x=784-(x-784);dx=-dx;boom();}
- if(x<16) {x=16+16-x;dx=-dx;boom();}
- if(y>584) {y=584-(y-584);dy=-dy;boom();}
- if(y<16) {y=16+16-y;dy=-dy;boom();}
- // Update particle system
- par->info.nEmission=(int)(dx*dx+dy*dy)*2;
- par->MoveTo(x,y);
- par->Update(dt);
- return false;
- }
- bool RenderFunc()
- {
- // Render graphics
- hge->Gfx_BeginScene();
- hge->Gfx_Clear(0);
- par->Render();
- spr->Render(x, y);
- fnt->printf(5, 5, HGETEXT_LEFT, "dt:%.3fnFPS:%d (constant)", hge->Timer_GetDelta(), hge->Timer_GetFPS());
- hge->Gfx_EndScene();
- return false;
- }
- int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
- {
- hge = hgeCreate(HGE_VERSION);
- hge->System_SetState(HGE_LOGFILE, "hge_tut03.log");
- hge->System_SetState(HGE_FRAMEFUNC, FrameFunc);
- hge->System_SetState(HGE_RENDERFUNC, RenderFunc);
- hge->System_SetState(HGE_TITLE, "HGE Tutorial 03 - Using helper classes");
- hge->System_SetState(HGE_FPS, 100);
- hge->System_SetState(HGE_WINDOWED, true);
- hge->System_SetState(HGE_SCREENWIDTH, 800);
- hge->System_SetState(HGE_SCREENHEIGHT, 600);
- hge->System_SetState(HGE_SCREENBPP, 32);
- if(hge->System_Initiate()) {
- // Load sound and texture
- snd=hge->Effect_Load("menu.wav");
- tex=hge->Texture_Load("particles.png");
- if(!snd || !tex)
- {
- // If one of the data files is not found, display
- // an error message and shutdown.
- MessageBox(NULL, "Can't load one of the following files:nMENU.WAV, PARTICLES.PNG, FONT1.FNT, FONT1.PNG, TRAIL.PSI", "Error", MB_OK | MB_ICONERROR | MB_APPLMODAL);
- hge->System_Shutdown();
- hge->Release();
- return 0;
- }
- // Create and set up a sprite
- spr=new hgeSprite(tex, 96, 64, 32, 32);
- spr->SetColor(0xFFFFA000);
- spr->SetHotSpot(16,16);
- // Load a font
- fnt=new hgeFont("font1.fnt");
- // Create and set up a particle system
- spt=new hgeSprite(tex, 32, 32, 32, 32);
- spt->SetBlendMode(BLEND_COLORMUL | BLEND_ALPHAADD | BLEND_NOZWRITE);
- spt->SetHotSpot(16,16);
- par=new hgeParticleSystem("trail.psi",spt);
- par->Fire();
- // Let's rock now!
- hge->System_Start();
- // Delete created objects and free loaded resources
- delete par;
- delete fnt;
- delete spt;
- delete spr;
- hge->Texture_Free(tex);
- hge->Effect_Free(snd);
- }
- // Clean up and shutdown
- hge->System_Shutdown();
- hge->Release();
- return 0;
- }