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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.  
  43. 	pre_time = GetCurrentTime();
  44. 	while ( ProcessMessage() != -1 )	{
  45. 		if ( CheckHitKey( KEY_INPUT_ESCAPE ) )
  46. 			break;
  47. 		if ( CheckHitKey( KEY_INPUT_D ) ) {
  48. 			if ( !bPreDKey )
  49. 				bDrawAll = !bDrawAll;
  50. 			bPreDKey = TRUE;
  51. 		}
  52. 		else
  53. 			bPreDKey = FALSE;
  54. 		cur_time  = GetCurrentTime();
  55. 		past_time = (double)( cur_time - pre_time) / 1000.0;
  56. 		pre_time  = cur_time;
  57.  
  58. 		if ( CheckHitKey( KEY_INPUT_RIGHT ) )					vec.x += ( bOnTheFloor ? ACCELL : (ACCELL * 0.25) );
  59. 		if ( CheckHitKey( KEY_INPUT_LEFT ) )					vec.x -= ( bOnTheFloor ? ACCELL : (ACCELL * 0.25) );
  60. 		if ( bOnTheFloor ) {
  61. 			vec.x -= GetSlope( floors, elements, player.x ) * CSLOPE;
  62. 			if ( GetSlope( floors, elements, player.x ) * vec.x < 0.0 )
  63. 				vec.y -= abs( GetSlope( floors, elements, player.x ) * 500 );
  64. 		}
  65. 		if ( vec.x > 0.0 ) {
  66. 			if ( ( vec.x -= ( bOnTheFloor ? RESIST : (RESIST * 0.25) ) ) < 0.0 )	vec.x = 0.0;
  67. 		}
  68. 		if ( vec.x < 0.0 ) {
  69. 			if ( ( vec.x += ( bOnTheFloor ? RESIST : (RESIST * 0.25) ) ) > 0.0 )	vec.x = 0.0;
  70. 		}
  71.  
  72. 		if ( CheckHitKey( KEY_INPUT_SPACE ) ) {
  73. 			if ( !bPreSPKey && bOnTheFloor )
  74. 				vec.y = JUMP;
  75. 			bPreSPKey = TRUE;
  76. 		}
  77. 		else
  78. 			bPreSPKey = FALSE;
  79. 		player.x += vec.x * past_time;
  80. 		player.y += vec.y * past_time;
  81.  
  82. 		vec.y -= GRAVITY;
  83.  
  84. 		floor_y = GetFloor( floors, elements, player.x );
  85. 		if ( floor_y + FERROR > player.y ) {
  86. 			player.y = floor_y;
  87. 			vec.y = 0.0;
  88. 			bOnTheFloor = TRUE;
  89. 		}
  90. 		else {
  91. 			bOnTheFloor = FALSE;
  92. 		}
  93.  
  94. 		cam_x = player.x - (CX >> 1);
  95.  
  96. 		ClearDrawScreen();
  97.  
  98. 		for ( int i = 0; i < elements - 1; i++ ) {
  99. 			DrawLine( floors[i].x - cam_x, CY - floors[i].y, floors[i+1].x - cam_x, CY - floors[i+1].y, WHITE );
  100. 		}
  101. 		if ( bDrawAll ) {
  102. 			for ( i = floors[0].x; i < floors[elements - 1].x; i++ ) {
  103. 				DrawLine( i - cam_x, CY - GetFloor( floors, elements, i ), i - cam_x, CY, GRAY( 64 ) );
  104. 			}
  105. 		}
  106. 		DrawBox( player.x - PSIZE - cam_x, CY - player.y - (PSIZE << 1), player.x + PSIZE - cam_x, CY - player.y, GetColor( 128, 128, 255 ), TRUE );
  107.  
  108. 		DrawFormatString( 0, 0, WHITE, "← →で移動" );
  109. 		DrawFormatString( 0, 24, WHITE, "スペースキーでジャンプ" );
  110. 		DrawFormatString( 0, 48, WHITE, "重い時は\"D\"キーで地面非表示" );
  111.  
  112. 		ScreenFlip();
  113. 	}
  114.  
  115. 	DxLib_End();
  116.  
  117. 	return 0;
  118. }
  119.  
  120. double GetSlope( VECTOR* fdata, int numdata, int x ) {
  121. 	double slope;
  122.  
  123. 	for ( int i = 0; i < numdata - 1; i++ ) {
  124. 		if ( fdata[i].x <= x && x < fdata[i+1].x )
  125. 			break;
  126. 	}
  127. 	if ( i >= numdata - 1 )
  128. 		slope = 0;
  129. 	else
  130. 		slope = (double)(fdata[i+1].y - fdata[i].y) / (double)(fdata[i+1].x - fdata[i].x);
  131.  
  132. 	return slope;
  133. }
  134.  
  135. double GetFloor( VECTOR* fdata, int numdata, int x ) {
  136. 	double floor_y;
  137.  
  138. 	for ( int i = 0; i < numdata - 1; i++ ) {
  139. 		if ( fdata[i].x <= x && x < fdata[i+1].x )
  140. 			break;
  141. 	}
  142. 	if ( i >= numdata - 1 )
  143. 		floor_y = -1000;
  144. 	else
  145. 		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;
  146.  
  147. 	return floor_y;
  148. }
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https://ideone.com/ch2ww
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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