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  1. //#include <windows.h>
  2. #include "dxlib.h"
  3.  
  4. #define CX                      1024
  5. #define CY                      768
  6. #define BPP                     16
  7. #define WHITE           GetColor( 255, 255, 255 )
  8. #define GRAY(a)         GetColor( a, a, a )
  9.  
  10. #define ACCELL          7.5
  11. #define GRAVITY         15.0
  12. #define CSLOPE          7.5
  13. #define RESIST          2.5
  14. #define JUMP            300.0
  15. #define FERROR          2.5
  16. #define PSIZE           8
  17.  
  18. double GetSlope( VECTOR* fdata, int numdata, int x );
  19. double GetFloor( VECTOR* fdata, int numdata, int x );
  20.  
  21. int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrev, LPSTR lpCmdLine, int nCmdShow)
  22. {
  23.         SetGraphMode( CX, CY, BPP );
  24.         ChangeWindowMode( TRUE );
  25.         if( DxLib_Init() == -1 )        return -1;
  26.         SetDrawScreen( DX_SCREEN_BACK );
  27.  
  28.         VECTOR floors[] = { { 0, 64, 0 }, { 100, 64, 0 }, { 200, 96, 0 }, { 250, 104, 0 },
  29.                 { 500, 32, 0 }, { 800, 32, 0 }, { 1000, 256, 0 }, { 1500, 128, 0 }, { 2000, 64, 0 },
  30.                 { 2500, 96, 0 }, { 3000, 128, 0 }, { 3200, 160, 0 }, { 3400, 10, 0 }, { 5000, 64, 0 } };
  31.         int elements = sizeof(floors) / sizeof(VECTOR);
  32.         VECTOR player = { 50, 100, 0 };
  33.         VECTOR vec = { 0, 0 };
  34.         int cam_x;
  35.         double floor_y;
  36.         int pre_time, cur_time;
  37.         double past_time;
  38.         int bOnTheFloor = FALSE;
  39.         int bDrawAll = TRUE;
  40.         int bPreDKey = FALSE;
  41.         int bPreSPKey = FALSE;
  42. 		int i;
  43.  
  44.         pre_time = GetCurrentTime();
  45.         while ( ProcessMessage() != -1 )        {
  46.                 if ( CheckHitKey( KEY_INPUT_ESCAPE ) )
  47.                         break;
  48.                 if ( CheckHitKey( KEY_INPUT_D ) ) {
  49.                         if ( !bPreDKey )
  50.                                 bDrawAll = !bDrawAll;
  51.                         bPreDKey = TRUE;
  52.                 }
  53.                 else
  54.                         bPreDKey = FALSE;
  55.                 cur_time  = GetCurrentTime();
  56.                 past_time = (double)( cur_time - pre_time) / 1000.0;
  57.                 pre_time  = cur_time;
  58.  
  59.                 if ( CheckHitKey( KEY_INPUT_RIGHT ) )                                   vec.x += ( bOnTheFloor ? ACCELL : (ACCELL * 0.25) );
  60.                 if ( CheckHitKey( KEY_INPUT_LEFT ) )                                    vec.x -= ( bOnTheFloor ? ACCELL : (ACCELL * 0.25) );
  61.                 if ( bOnTheFloor ) {
  62.                         vec.x -= GetSlope( floors, elements, player.x ) * CSLOPE;
  63.                         if ( GetSlope( floors, elements, player.x ) * vec.x < 0.0 )
  64.                                 vec.y -= abs( GetSlope( floors, elements, player.x ) * 500 );
  65.                 }
  66.                 if ( vec.x > 0.0 ) {
  67.                         if ( ( vec.x -= ( bOnTheFloor ? RESIST : (RESIST * 0.25) ) ) < 0.0 )    vec.x = 0.0;
  68.                 }
  69.                 if ( vec.x < 0.0 ) {
  70.                         if ( ( vec.x += ( bOnTheFloor ? RESIST : (RESIST * 0.25) ) ) > 0.0 )    vec.x = 0.0;
  71.                 }
  72.  
  73.                 if ( CheckHitKey( KEY_INPUT_SPACE ) ) {
  74.                         if ( !bPreSPKey && bOnTheFloor )
  75.                                 vec.y = JUMP;
  76.                         bPreSPKey = TRUE;
  77.                 }
  78.                 else
  79.                         bPreSPKey = FALSE;
  80.                 player.x += vec.x * past_time;
  81.                 player.y += vec.y * past_time;
  82.  
  83.                 vec.y -= GRAVITY;
  84.  
  85.                 floor_y = GetFloor( floors, elements, player.x );
  86.                 if ( floor_y + FERROR > player.y ) {
  87.                         player.y = floor_y;
  88.                         vec.y = 0.0;
  89.                         bOnTheFloor = TRUE;
  90.                 }
  91.                 else {
  92.                         bOnTheFloor = FALSE;
  93.                 }
  94.  
  95.                 cam_x = player.x - (CX >> 1);
  96.  
  97.                 ClearDrawScreen();
  98.  
  99.                 for ( i = 0; i < elements - 1; i++ ) {
  100.                         DrawLine( floors[i].x - cam_x, CY - floors[i].y, floors[i+1].x - cam_x, CY - floors[i+1].y, WHITE );
  101.                 }
  102.                 if ( bDrawAll ) {
  103.                         for ( i = floors[0].x; i < floors[elements - 1].x; i++ ) {
  104.                                 DrawLine( i - cam_x, CY - GetFloor( floors, elements, i ), i - cam_x, CY, GRAY( 64 ) );
  105.                         }
  106.                 }
  107.                 DrawBox( player.x - PSIZE - cam_x, CY - player.y - (PSIZE << 1), player.x + PSIZE - cam_x, CY - player.y, GetColor( 128, 128, 255 ), TRUE );
  108.  
  109.                 DrawFormatString( 0, 0, WHITE, "← →で移動" );
  110.                 DrawFormatString( 0, 24, WHITE, "スペースキーでジャンプ" );
  111.                 DrawFormatString( 0, 48, WHITE, "重い時は\"D\"キーで地面非表示" );
  112.  
  113.                 ScreenFlip();
  114.         }
  115.  
  116.         DxLib_End();
  117.  
  118.         return 0;
  119. }
  120.  
  121. double GetSlope( VECTOR* fdata, int numdata, int x ) {
  122.         double slope;
  123. 		int i;
  124.  
  125.         for ( i = 0; i < numdata - 1; i++ ) {
  126.                 if ( fdata[i].x <= x && x < fdata[i+1].x )
  127.                         break;
  128.         }
  129.         if ( i >= numdata - 1 )
  130.                 slope = 0;
  131.         else
  132.                 slope = (double)(fdata[i+1].y - fdata[i].y) / (double)(fdata[i+1].x - fdata[i].x);
  133.  
  134.         return slope;
  135. }
  136.  
  137. double GetFloor( VECTOR* fdata, int numdata, int x ) {
  138.         double floor_y;
  139. 		int i;
  140.  
  141.         for ( i = 0; i < numdata - 1; i++ ) {
  142.                 if ( fdata[i].x <= x && x < fdata[i+1].x )
  143.                         break;
  144.         }
  145.         if ( i >= numdata - 1 )
  146.                 floor_y = -1000;
  147.         else
  148.                 floor_y = (double)(fdata[i+1].y - fdata[i].y) / (double)(fdata[i+1].x - fdata[i].x) * (double)(x - fdata[i].x) + fdata[i].y;
  149.  
  150.         return floor_y;
  151. }
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https://ideone.com/HnWrH
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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