115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*****************************************************************************/
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/* ここから */
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/*****************************************************************************/
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#include "WWCharacterP.h"
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/*****************************************************************************/
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/* メンバ関数の定義 */
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/*****************************************************************************/
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int WWCharacter_GetNumber(WWCharacter c)
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{
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if (c == NULL) Error("WWCharacter_GetNumber()", "WWCharacter is NULL.");
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return (c->number);
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}
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int WWCharacter_SetNumber(WWCharacter c, int n)
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{
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if ((n < 0) || (n >= 512))
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Error("WWCharacter_SetNumber()", "Invalid range.");
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return (c->number = n);
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}
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WWCharacter WWCharacter_Create(int number, unsigned char * bitmap)
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{
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WWCharacter character;
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character = (WWCharacter)malloc(sizeof(_WWCharacter));
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if (character == NULL)
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Error("WWCharacter_Create", "Cannot allocate memory.");
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WWCharacter_SetNumber(character, number);
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WWCharacter_SetBitmap(character, bitmap);
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return (character);
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}
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WWCharacter WWCharacter_Destroy(WWCharacter character)
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{
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if (character == NULL)
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Error("WWCharacter_Destroy()", "WWCharacter is NULL.");
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free(character);
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return (NULL);
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}
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int WWCharacter_SetBitmap(WWCharacter character, unsigned char * bitmap)
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{
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int i;
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if (character == NULL)
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Error("WWCharacter_SetBitmap()", "WWCharacter is NULL.");
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for (i = 0; i < 16; i++) {
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if (bitmap == NULL) {
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character->bitmap[i] = 0x00;
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} else {
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character->bitmap[i] = bitmap[i];
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}
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}
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return (0);
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}
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#include <stdio.h>
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int WWCharacter_GetPixel(WWCharacter character, int x, int y)
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{
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if (character == NULL)
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Error("WWCharacter_GetPixel()", "WWCharacter is NULL.");
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if ((x < 0) || (x > 7))
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Error("WWCharacter_GetPixel()", "x is invalid value.");
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if ((y < 0) || (y > 7))
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Error("WWCharacter_GetPixel()", "y is invalid value.");
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/* ビットマップは2ビットでぴとつのピクセルに対応する． */
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/* 2ビットの値が，palette の色に対応する． */
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/* bitmap は unsigned char bitmap[16]; に定義してある． */
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/* パレット色(0～3)を返す */
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return ( (character->bitmap[y * 2 + x / 4] >> ((x % 4) * 2)) & 0x03 );
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}
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int WWCharacter_SetPixel(WWCharacter character, int x, int y, int pixel)
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{
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unsigned char p;
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if (character == NULL)
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Error("WWCharacter_SetPixel()", "WWCharacter is NULL.");
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if ((x < 0) || (x > 7))
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Error("WWCharacter_SetPixel()", "x is invalid value.");
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if ((y < 0) || (y > 7))
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Error("WWCharacter_SetPixel()", "y is invalid value.");
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if ((pixel < 0) || (pixel > 3))
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Error("WWCharacter_SetPixel()", "Invalid pixel.");
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p = ((unsigned char)pixel) & 0x03;
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p = p << ((x % 4) * 2);
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character->bitmap[y * 2 + x / 4] &= ~(0x03 << ((x % 4) * 2));
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character->bitmap[y * 2 + x / 4] |= p;
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return (pixel);
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}
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/*****************************************************************************/
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/* ここまで */
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/*****************************************************************************/
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/*****************************************************************************/
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/* End of File. */
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/*****************************************************************************/
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