81 lines
8.8 KiB
C
81 lines
8.8 KiB
C
#include <windows.h>
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#include <d3d11.h>
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#include <d3dcompiler.h>
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#include <math.h>
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#include <stdint.h>
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#include <string.h>
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typedef struct { float p[3], n[3], u[2], c[4]; } V3D;
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static ID3D11Device* g_dev; static ID3D11DeviceContext* g_ctx;
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static IDXGISwapChain* g_sc; static ID3D11RenderTargetView* g_rtv;
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static ID3D11VertexShader* g_vs; static ID3D11PixelShader* g_ps;
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static ID3D11InputLayout* g_il; static ID3D11Buffer* g_cb;
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static int key_l=0,key_r=0,key_u=0,key_d=0,key_sp=0;
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static int dead=0, score=0;
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static float px=0, py=0, speed=0.4f;
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#define NOBS 15
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static float ox[NOBS],oy[NOBS],oz[NOBS],osz[NOBS];
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static int oa[NOBS],oc=0; static float st=0;
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static void Init(HWND h){
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HRESULT hr;DXGI_SWAP_CHAIN_DESC sd;memset(&sd,0,sizeof(sd));sd.BufferCount=2;sd.BufferDesc.Format=DXGI_FORMAT_R8G8B8A8_UNORM;sd.BufferDesc.RefreshRate.Numerator=60;sd.BufferUsage=DXGI_USAGE_RENDER_TARGET_OUTPUT;sd.OutputWindow=h;sd.SampleDesc.Count=1;sd.Windowed=TRUE;sd.SwapEffect=DXGI_SWAP_EFFECT_DISCARD;
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D3D_FEATURE_LEVEL fl=D3D_FEATURE_LEVEL_11_0,gt;hr=D3D11CreateDeviceAndSwapChain(NULL,D3D_DRIVER_TYPE_HARDWARE,NULL,0,&fl,1,D3D11_SDK_VERSION,&sd,&g_sc,&g_dev,>,&g_ctx);if(FAILED(hr))return;
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ID3D11Texture2D*bb=NULL;hr=g_sc->lpVtbl->GetBuffer(g_sc,0,&IID_ID3D11Texture2D,(void**)&bb);if(FAILED(hr)||!bb)return;hr=g_dev->lpVtbl->CreateRenderTargetView(g_dev,(ID3D11Resource*)bb,NULL,&g_rtv);bb->lpVtbl->Release(bb);if(FAILED(hr))return;
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const char*vs="cbuffer CB:register(b0){float4x4 WVP;};struct I{float3 p:POSITION;float3 n:NORMAL;float2 u:TEXCOORD;float4 c:COLOR;};struct O{float4 p:SV_POSITION;float4 c:COLOR;};O main(I i){O o;o.p=mul(float4(i.p,1),WVP);o.c=i.c;return o;}";
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const char*ps="float4 main(float4 p:SV_POSITION, float4 c:COLOR):SV_Target{return c;}";
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ID3DBlob*b1,*b2,*e;D3DCompile(vs,(UINT)strlen(vs),NULL,NULL,NULL,"main","vs_5_0",0,0,&b1,&e);if(e){e->lpVtbl->Release(e);e=NULL;}D3DCompile(ps,(UINT)strlen(ps),NULL,NULL,NULL,"main","ps_5_0",0,0,&b2,&e);if(e){e->lpVtbl->Release(e);e=NULL;}if(!b1||!b2)return;
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g_dev->lpVtbl->CreateVertexShader(g_dev,b1->lpVtbl->GetBufferPointer(b1),b1->lpVtbl->GetBufferSize(b1),NULL,&g_vs);g_dev->lpVtbl->CreatePixelShader(g_dev,b2->lpVtbl->GetBufferPointer(b2),b2->lpVtbl->GetBufferSize(b2),NULL,&g_ps);
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D3D11_INPUT_ELEMENT_DESC el[4];memset(el,0,sizeof(el));el[0].SemanticName="POSITION";el[0].Format=DXGI_FORMAT_R32G32B32_FLOAT;el[0].InputSlotClass=D3D11_INPUT_PER_VERTEX_DATA;el[1].SemanticName="NORMAL";el[1].AlignedByteOffset=12;el[1].Format=DXGI_FORMAT_R32G32B32_FLOAT;el[1].InputSlotClass=D3D11_INPUT_PER_VERTEX_DATA;el[2].SemanticName="TEXCOORD";el[2].AlignedByteOffset=24;el[2].Format=DXGI_FORMAT_R32G32_FLOAT;el[2].InputSlotClass=D3D11_INPUT_PER_VERTEX_DATA;el[3].SemanticName="COLOR";el[3].AlignedByteOffset=32;el[3].Format=DXGI_FORMAT_R32G32B32A32_FLOAT;el[3].InputSlotClass=D3D11_INPUT_PER_VERTEX_DATA;
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g_dev->lpVtbl->CreateInputLayout(g_dev,el,4,b1->lpVtbl->GetBufferPointer(b1),b1->lpVtbl->GetBufferSize(b1),&g_il);b1->lpVtbl->Release(b1);b2->lpVtbl->Release(b2);
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D3D11_BUFFER_DESC cbd;memset(&cbd,0,sizeof(cbd));cbd.ByteWidth=256;cbd.Usage=D3D11_USAGE_DEFAULT;cbd.BindFlags=D3D11_BIND_CONSTANT_BUFFER;g_dev->lpVtbl->CreateBuffer(g_dev,&cbd,NULL,&g_cb);
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}
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static void Cube(float cx,float cy,float cz,float s,float cr,float cg,float cb){
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V3D v[24];float f[6][4][3]={{{-1,-1,-1},{1,-1,-1},{1,1,-1},{-1,1,-1}},{{1,-1,-1},{1,-1,1},{1,1,1},{1,1,-1}},{{1,-1,1},{-1,-1,1},{-1,1,1},{1,1,1}},{{-1,-1,1},{-1,-1,-1},{-1,1,-1},{-1,1,1}},{{-1,1,-1},{1,1,-1},{1,1,1},{-1,1,1}},{{-1,-1,1},{1,-1,1},{1,-1,-1},{-1,-1,-1}}};float nm[6][3]={{0,0,-1},{1,0,0},{0,0,1},{-1,0,0},{0,1,0},{0,-1,0}};
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for(int fi=0;fi<6;fi++)for(int vi=0;vi<4;vi++){int i=fi*4+vi;v[i].p[0]=f[fi][vi][0]*s+cx;v[i].p[1]=f[fi][vi][1]*s+cy;v[i].p[2]=f[fi][vi][2]*s+cz;v[i].n[0]=nm[fi][0];v[i].n[1]=nm[fi][1];v[i].n[2]=nm[fi][2];v[i].c[0]=cr;v[i].c[1]=cg;v[i].c[2]=cb;v[i].c[3]=1;}
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uint32_t ix[36];for(int fi=0;fi<6;fi++){int b=fi*4;ix[fi*6]=b;ix[fi*6+1]=b+1;ix[fi*6+2]=b+2;ix[fi*6+3]=b;ix[fi*6+4]=b+2;ix[fi*6+5]=b+3;}
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ID3D11Buffer*vb,*ib;D3D11_BUFFER_DESC bd;D3D11_SUBRESOURCE_DATA sd;memset(&bd,0,sizeof(bd));memset(&sd,0,sizeof(sd));bd.ByteWidth=sizeof(V3D)*24;bd.Usage=D3D11_USAGE_DEFAULT;bd.BindFlags=D3D11_BIND_VERTEX_BUFFER;sd.pSysMem=v;g_dev->lpVtbl->CreateBuffer(g_dev,&bd,&sd,&vb);bd.ByteWidth=sizeof(uint32_t)*36;bd.BindFlags=D3D11_BIND_INDEX_BUFFER;sd.pSysMem=ix;g_dev->lpVtbl->CreateBuffer(g_dev,&bd,&sd,&ib);
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UINT s2=sizeof(V3D),o=0;g_ctx->lpVtbl->IASetVertexBuffers(g_ctx,0,1,&vb,&s2,&o);g_ctx->lpVtbl->IASetIndexBuffer(g_ctx,ib,DXGI_FORMAT_R32_UINT,0);g_ctx->lpVtbl->DrawIndexed(g_ctx,36,0,0);ib->lpVtbl->Release(ib);vb->lpVtbl->Release(vb);
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}
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static void Spawn(void){for(int i=0;i<NOBS;i++){if(!oa[i]){oa[i]=1;ox[i]=-1.0f+(float)(rand()%200)/100.0f;oy[i]=-0.6f+(float)(rand()%120)/100.0f;oz[i]=1.95f;osz[i]=0.08f+(float)(rand()%80)/400.0f;oc++;return;}}}
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static void Frame(void){
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float dt=0.016f,spd=speed*dt;
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if(dead){if(key_sp){dead=0;score=0;speed=0.4f;px=py=0;oc=0;st=0;for(int i=0;i<NOBS;i++)oa[i]=0;}}
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else{
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if(key_l)px-=spd;if(key_r)px+=spd;if(key_u)py+=spd;if(key_d)py-=spd;
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if(px<-1.3f)px=-1.3f;if(px>1.3f)px=1.3f;if(py<-0.9f)py=-0.9f;if(py>0.9f)py=0.9f;
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st+=dt;if(st>0.6f/speed){Spawn();st=0;}
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for(int i=0;i<NOBS;i++){
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if(!oa[i])continue;oz[i]-=speed*dt;
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if(oz[i]<1.0f){oa[i]=0;oc--;score++;speed=0.4f+score*0.05f;if(speed>2.0f)speed=2.0f;}
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float dx=px>ox[i]?px-ox[i]:ox[i]-px;float dy=py>oy[i]?py-oy[i]:oy[i]-py;float dz=1.5f>oz[i]?1.5f-oz[i]:oz[i]-1.5f;
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float md=0.12f+osz[i];if(dx<md&&dy<md&&dz<md)dead=1;
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}
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}
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float fov=1.0f/tanf(0.4f),asp=1280.0f/720.0f;
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float mvp[16];memset(mvp,0,sizeof(mvp));
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mvp[0]=fov/asp;mvp[5]=-fov;mvp[10]=1;mvp[11]=-1;mvp[14]=0.1f;mvp[15]=1;
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float cl[4]={.08f,.1f,.14f,1};if(dead){cl[0]=.12f;cl[1]=.02f;cl[2]=.02f;}
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g_ctx->lpVtbl->OMSetRenderTargets(g_ctx,1,&g_rtv,NULL);g_ctx->lpVtbl->ClearRenderTargetView(g_ctx,g_rtv,cl);
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D3D11_VIEWPORT vp;memset(&vp,0,sizeof(vp));vp.Width=1280;vp.Height=720;vp.MaxDepth=1;g_ctx->lpVtbl->RSSetViewports(g_ctx,1,&vp);
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D3D11_RASTERIZER_DESC rd;memset(&rd,0,sizeof(rd));rd.FillMode=D3D11_FILL_SOLID;rd.CullMode=D3D11_CULL_NONE;ID3D11RasterizerState*rs;g_dev->lpVtbl->CreateRasterizerState(g_dev,&rd,&rs);g_ctx->lpVtbl->RSSetState(g_ctx,rs);
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D3D11_DEPTH_STENCIL_DESC ds;memset(&ds,0,sizeof(ds));ds.DepthEnable=FALSE;ID3D11DepthStencilState*dss;g_dev->lpVtbl->CreateDepthStencilState(g_dev,&ds,&dss);g_ctx->lpVtbl->OMSetDepthStencilState(g_ctx,dss,0);
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g_ctx->lpVtbl->IASetPrimitiveTopology(g_ctx,D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);g_ctx->lpVtbl->VSSetShader(g_ctx,g_vs,NULL,0);g_ctx->lpVtbl->PSSetShader(g_ctx,g_ps,NULL,0);g_ctx->lpVtbl->IASetInputLayout(g_ctx,g_il);g_ctx->lpVtbl->VSSetConstantBuffers(g_ctx,0,1,&g_cb);g_ctx->lpVtbl->UpdateSubresource(g_ctx,(ID3D11Resource*)g_cb,0,NULL,mvp,0,0);
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if(dead){Cube(0,0,1.5f,0.4f,.9f,.1f,.1f);}
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else{
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Cube(px,py,1.5f,0.12f,.1f,.9f,.3f);
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for(int i=0;i<NOBS;i++){if(!oa[i])continue;float fl=.6f+.4f*sinf(oz[i]*8.0f);Cube(ox[i],oy[i],oz[i],osz[i],fl,.15f,.1f);}
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}
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if(rs)rs->lpVtbl->Release(rs);if(dss)dss->lpVtbl->Release(dss);g_sc->lpVtbl->Present(g_sc,1,0);
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}
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static LRESULT CALLBACK WP(HWND h,UINT m,WPARAM w,LPARAM l){switch(m){case WM_KEYDOWN:switch(w){case VK_LEFT:key_l=1;break;case VK_RIGHT:key_r=1;break;case VK_UP:key_u=1;break;case VK_DOWN:key_d=1;break;case 'A':key_l=1;break;case 'D':key_r=1;break;case 'W':key_u=1;break;case 'S':key_d=1;break;case VK_SPACE:key_sp=1;break;case VK_ESCAPE:PostQuitMessage(0);break;}break;case WM_KEYUP:switch(w){case VK_LEFT:key_l=0;break;case VK_RIGHT:key_r=0;break;case VK_UP:key_u=0;break;case VK_DOWN:key_d=0;break;case 'A':key_l=0;break;case 'D':key_r=0;break;case 'W':key_u=0;break;case 'S':key_d=0;break;case VK_SPACE:key_sp=0;break;}break;case WM_DESTROY:PostQuitMessage(0);return 0;}return DefWindowProcW(h,m,w,l);}
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int WINAPI WinMain(HINSTANCE hI,HINSTANCE,LPSTR,int){srand(42);WNDCLASSEXW wc;memset(&wc,0,sizeof(wc));wc.cbSize=sizeof(wc);wc.style=CS_CLASSDC;wc.lpfnWndProc=WP;wc.hInstance=hI;wc.lpszClassName=L"dodge";RegisterClassExW(&wc);HWND hwnd=CreateWindowW(L"dodge",L"Cube Dodge - WASD/Arrows move, Space restart",WS_OVERLAPPEDWINDOW,200,100,1280,720,NULL,NULL,hI,NULL);if(!hwnd)return -1;ShowWindow(hwnd,SW_SHOW);UpdateWindow(hwnd);Init(hwnd);MSG msg;while(1){while(PeekMessage(&msg,NULL,0,0,PM_REMOVE)){TranslateMessage(&msg);DispatchMessage(&msg);if(msg.message==WM_QUIT)goto done;}Frame();}done:if(g_cb)g_cb->lpVtbl->Release(g_cb);if(g_il)g_il->lpVtbl->Release(g_il);if(g_vs)g_vs->lpVtbl->Release(g_vs);if(g_ps)g_ps->lpVtbl->Release(g_ps);if(g_rtv)g_rtv->lpVtbl->Release(g_rtv);if(g_sc)g_sc->lpVtbl->Release(g_sc);if(g_ctx)g_ctx->lpVtbl->Release(g_ctx);if(g_dev)g_dev->lpVtbl->Release(g_dev);return 0;}
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