WWScreen.c 7.2 KB

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  1. /*****************************************************************************/
  2. /* ここから */
  3. /*****************************************************************************/
  4. #include "WWScreenP.h"
  5. /*****************************************************************************/
  6. /* メンバ関数の定義 */
  7. /*****************************************************************************/
  8. /*===========================================================================*/
  9. /* プライベートなもの */
  10. /*===========================================================================*/
  11. static int WWScreenCharacter_GetHorizontal(WWScreenCharacter sc)
  12. { return (sc->horizontal); }
  13. static int WWScreenCharacter_GetVertical(WWScreenCharacter sc)
  14. { return (sc->vertical); }
  15. static WWPalette WWScreenCharacter_GetPalette(WWScreenCharacter sc)
  16. { return (sc->palette); }
  17. static WWCharacter WWScreenCharacter_GetCharacter(WWScreenCharacter sc)
  18. { return (sc->character); }
  19. static int WWScreenCharacter_SetHorizontal(WWScreenCharacter sc, int f)
  20. { return (sc->horizontal = f); }
  21. static int WWScreenCharacter_SetVertical(WWScreenCharacter sc, int f)
  22. { return (sc->vertical = f); }
  23. static WWPalette WWScreenCharacter_SetPalette(WWScreenCharacter sc,
  24. WWPalette palette)
  25. { return (sc->palette = palette); }
  26. static WWCharacter WWScreenCharacter_SetCharacter(WWScreenCharacter sc,
  27. WWCharacter c)
  28. { return (sc->character = c); }
  29. static WWScreenCharacter WWScreenCharacter_Create(int horizontal, int vertical,
  30. WWPalette palette,
  31. WWCharacter character)
  32. {
  33. WWScreenCharacter screen_character;
  34. screen_character = (WWScreenCharacter)malloc(sizeof(_WWScreenCharacter));
  35. if (screen_character == NULL)
  36. Error("WWScreenCharacter", "Cannot allocate memory.");
  37. WWScreenCharacter_SetHorizontal(screen_character, horizontal);
  38. WWScreenCharacter_SetVertical(screen_character, vertical);
  39. WWScreenCharacter_SetPalette(screen_character, palette);
  40. WWScreenCharacter_SetCharacter(screen_character, character);
  41. return (screen_character);
  42. }
  43. static WWScreenCharacter WWScreenCharacter_Destroy(WWScreenCharacter
  44. screen_character)
  45. {
  46. if (screen_character == NULL) return (NULL);
  47. free(screen_character);
  48. return (NULL);
  49. }
  50. static WWScreenCharacter WWScreen_GetScreenCharacter(WWScreen s, int x, int y)
  51. {
  52. return (s->screen_characters[y * WWScreen_GetWidth(s) + x]);
  53. }
  54. static WWScreenCharacter WWScreen_SetScreenCharacter(WWScreen s, int x, int y,
  55. WWScreenCharacter sc)
  56. {
  57. return (s->screen_characters[y * WWScreen_GetWidth(s) + x] = sc);
  58. }
  59. /*===========================================================================*/
  60. /* パブリックなもの */
  61. /*===========================================================================*/
  62. int WWScreen_GetNumber(WWScreen s) { return (s->number); }
  63. int WWScreen_GetHorizontal(WWScreen s, int x, int y)
  64. { return (WWScreen_GetScreenCharacter(s, x, y)->horizontal); }
  65. int WWScreen_GetVertical(WWScreen s, int x, int y)
  66. { return (WWScreen_GetScreenCharacter(s, x, y)->vertical); }
  67. WWPalette WWScreen_GetPalette(WWScreen s, int x, int y)
  68. { return (WWScreen_GetScreenCharacter(s, x, y)->palette); }
  69. WWCharacter WWScreen_GetCharacter(WWScreen s, int x, int y)
  70. { return (WWScreen_GetScreenCharacter(s, x, y)->character); }
  71. int WWScreen_SetNumber(WWScreen s, int n) { return (s->number = n); }
  72. int WWScreen_SetHorizontal(WWScreen s, int x, int y, int f)
  73. { return (WWScreen_GetScreenCharacter(s, x, y)->horizontal = f); }
  74. int WWScreen_SetVertical(WWScreen s, int x, int y, int f)
  75. { return (WWScreen_GetScreenCharacter(s, x, y)->vertical = f); }
  76. WWPalette WWScreen_SetPalette(WWScreen s, int x, int y, WWPalette palette)
  77. { return (WWScreen_GetScreenCharacter(s, x, y)->palette = palette); }
  78. WWCharacter WWScreen_SetCharacter(WWScreen s, int x, int y, WWCharacter c)
  79. { return (WWScreen_GetScreenCharacter(s, x, y)->character = c); }
  80. int WWScreen_GetWidth( WWScreen s) { return (s->width ); }
  81. int WWScreen_GetHeight(WWScreen s) { return (s->height); }
  82. int WWScreen_GetRollX( WWScreen s) { return (s->roll_x); }
  83. int WWScreen_GetRollY( WWScreen s) { return (s->roll_y); }
  84. int WWScreen_SetWidth( WWScreen s, int n) { return (s->width = n); }
  85. int WWScreen_SetHeight(WWScreen s, int n) { return (s->height = n); }
  86. int WWScreen_SetRollX( WWScreen s, int r) { return (s->roll_x = r); }
  87. int WWScreen_SetRollY( WWScreen s, int r) { return (s->roll_y = r); }
  88. /* カラーマップの色(0~7)を返す(透明色は-1を返す) */
  89. int WWScreen_GetPixel(WWScreen screen, int x, int y)
  90. {
  91. int cx, cy, px, py;
  92. int pixel;
  93. WWCharacter character;
  94. WWPalette palette;
  95. /* x,y 座標が範囲外のときは,ロールオーバーする */
  96. /* (スクリーンの端と端は,つながっている) */
  97. while (x < 0) x += WWScreen_GetWidth( screen) * 8;
  98. while (y < 0) y += WWScreen_GetHeight(screen) * 8;
  99. x = x % (WWScreen_GetWidth( screen) * 8);
  100. y = y % (WWScreen_GetHeight(screen) * 8);
  101. cx = x / 8; cy = y / 8;
  102. px = x % 8; py = y % 8;
  103. if (WWScreen_GetHorizontal(screen, cx, cy)) px = 7 - px;
  104. if (WWScreen_GetVertical( screen, cx, cy)) py = 7 - py;
  105. character = WWScreen_GetCharacter(screen, cx, cy);
  106. palette = WWScreen_GetPalette(screen, cx, cy);
  107. pixel = WWCharacter_GetPixel(character, px, py);
  108. pixel = WWPalette_GetMappedColor(palette, pixel);
  109. return (pixel);
  110. }
  111. WWScreen WWScreen_Create(int number, int width, int height,
  112. WWPalette initial_palette,
  113. WWCharacter initial_character)
  114. {
  115. WWScreen screen;
  116. WWScreenCharacter sc;
  117. int x, y;
  118. screen = (WWScreen)malloc(sizeof(_WWScreen));
  119. if (screen == NULL) Error("WWScreen_Create", "Cannot allocate memory.");
  120. WWScreen_SetNumber(screen, number);
  121. WWScreen_SetWidth( screen, width);
  122. WWScreen_SetHeight(screen, height);
  123. WWScreen_SetRollX( screen, 0);
  124. WWScreen_SetRollY( screen, 0);
  125. screen->screen_characters =
  126. (WWScreenCharacter *)malloc(sizeof(WWScreenCharacter) *
  127. screen->width * screen->height);
  128. for (y = 0; y < screen->height; y++) {
  129. for (x = 0; x < screen->width; x++) {
  130. sc = WWScreenCharacter_Create(0, 0, initial_palette, initial_character);
  131. WWScreen_SetScreenCharacter(screen, x, y, sc);
  132. }
  133. }
  134. return (screen);
  135. }
  136. WWScreen WWScreen_Destroy(WWScreen screen)
  137. {
  138. int x, y;
  139. WWScreenCharacter sc;
  140. if (screen == NULL) return (NULL);
  141. for (y = 0; y < screen->height; y++) {
  142. for (x = 0; x < screen->width; x++) {
  143. sc = WWScreen_GetScreenCharacter(screen, x, y);
  144. WWScreen_SetScreenCharacter(screen, x, y, WWScreenCharacter_Destroy(sc));
  145. }
  146. }
  147. if (screen->screen_characters) free(screen->screen_characters);
  148. free(screen);
  149. return (NULL);
  150. }
  151. /*****************************************************************************/
  152. /* ここまで */
  153. /*****************************************************************************/
  154. /*****************************************************************************/
  155. /* End of File. */
  156. /*****************************************************************************/