mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
synced 2026-09-29 18:28:19 +03:00
144 lines
3.4 KiB
C
144 lines
3.4 KiB
C
/*
|
|
* sprite_draw.c: スプライト再描画各種
|
|
*
|
|
* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
|
|
* 1998- <masaki-c@is.aist-nara.ac.jp>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
/* $Id: sprite_draw.c,v 1.1 2003/11/09 15:06:12 chikama Exp $ */
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "portab.h"
|
|
#include "system.h"
|
|
#include "ags.h"
|
|
#include "graphics.h"
|
|
#include "surface.h"
|
|
#include "ngraph.h"
|
|
#include "sprite.h"
|
|
|
|
/*
|
|
指定の sprite (の現在のCG)を surface0 に書く
|
|
@param sp: 描画するスプライト
|
|
@param r : 再描画する領域
|
|
*/
|
|
int nt_sp_draw(sprite_t *sp, MyRectangle *r) {
|
|
if (sp == NULL) return NG;
|
|
|
|
return nt_sp_draw2(sp, sp->curcg, r);
|
|
}
|
|
|
|
/*
|
|
指定の spriteの指定のCGを surface0 に書く
|
|
(このインターフェイスはもう不要?)
|
|
|
|
@param sp: 描画するスプライト
|
|
@param cg: 描画するCG
|
|
@param r : 再描画する領域
|
|
*/
|
|
int nt_sp_draw2(sprite_t *sp, cginfo_t *cg, MyRectangle *r) {
|
|
surface_t update;
|
|
int sx, sy, w, h, dx, dy;
|
|
|
|
if (cg == NULL) return NG;
|
|
if (cg->sf == NULL) return NG;
|
|
|
|
// 更新領域の確定
|
|
update.width = r->width;
|
|
update.height = r->height;
|
|
sx = 0;
|
|
sy = 0;
|
|
dx = sp->cur.x - r->x;
|
|
dy = sp->cur.y - r->y;
|
|
w = cg->sf->width;
|
|
h = cg->sf->height;
|
|
|
|
if (!gr_clip(cg->sf, &sx, &sy, &w, &h, &update, &dx, &dy)) {
|
|
return NG;
|
|
}
|
|
|
|
dx += r->x;
|
|
dy += r->y;
|
|
|
|
if (cg->sf->alpha) {
|
|
// alpha map がある場合
|
|
gre_BlendUseAMap(sf0, dx, dy,
|
|
sf0, dx, dy,
|
|
cg->sf, sx, sy, w, h,
|
|
cg->sf, sx, sy,
|
|
sp->blendrate);
|
|
} else {
|
|
if (sp->blendrate == 255) {
|
|
// alpha値指定が無い場合
|
|
gr_copy(sf0, dx, dy, cg->sf, sx, sy, w, h);
|
|
} else if (sp->blendrate > 0) {
|
|
// alpha値指定がある場合
|
|
gre_Blend(sf0, dx, dy,
|
|
sf0, dx, dy,
|
|
cg->sf, sx, sy, w, h,
|
|
sp->blendrate);
|
|
}
|
|
}
|
|
|
|
SACT_DEBUG("do update no=%d, sx=%d, sy=%d, w=%d, h=%d, dx=%d, dy=%d\n",
|
|
sp->no, sx, sy, w, h, dx, dy);
|
|
|
|
return OK;
|
|
}
|
|
|
|
// BlendScreenによる描画
|
|
int nt_sp_draw_scg(sprite_t *sp, MyRectangle *r) {
|
|
surface_t update;
|
|
cginfo_t *cg;
|
|
int sx, sy, w, h, dx, dy;
|
|
|
|
if (sp == NULL) return NG;
|
|
|
|
cg = sp->curcg;
|
|
|
|
if (cg == NULL) return NG;
|
|
if (cg->sf == NULL) return NG;
|
|
|
|
// 更新領域の確定
|
|
update.width = r->width;
|
|
update.height = r->height;
|
|
sx = 0;
|
|
sy = 0;
|
|
dx = sp->cur.x - r->x;
|
|
dy = sp->cur.y - r->y;
|
|
w = cg->sf->width;
|
|
h = cg->sf->height;
|
|
|
|
if (!gr_clip(cg->sf, &sx, &sy, &w, &h, &update, &dx, &dy)) {
|
|
return NG;
|
|
}
|
|
|
|
dx += r->x;
|
|
dy += r->y;
|
|
|
|
gre_BlendScreen(sf0, dx, dy,
|
|
sf0, dx, dy,
|
|
cg->sf, sx, sy, w, h);
|
|
|
|
SACT_DEBUG("do update no=%d, sx=%d, sy=%d, w=%d, h=%d, dx=%d, dy=%d\n",
|
|
sp->no, sx, sy, w, h, dx, dy);
|
|
|
|
return OK;
|
|
}
|