--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sgoex.c	Sat Dec 11 21:25:28 2010 +0900
@@ -0,0 +1,409 @@
+/*
+  スプライト管理関数
+*/
+
+//#include<libps.h>
+#include <stdio.h>
+#include <SDL.h>
+#include "SDL_image.h"
+#include "SDL_opengl.h"
+#include "texture.h"
+#include "object.h"
+#include "tree_controll.h"
+#include "sgoex.h"
+#include "trace.h"
+#include "syokika.h"
+#include "LoadSprite.h"
+
+
+#define OT_LENGTH	1	/*  オーダリングテーブル */
+#define MAXOBJ    320		/*スプライト表示上限 */
+
+#define TRUE	1
+#define FALSE	0
+
+
+//static u_short tpage;
+//static SDL_Rect rect;
+
+//static int nActiveBuff;		/*ばふぁ */
+// int i;				/* Multi-purpose */
+//static int pageno;
+
+//static int padd;
+
+static const int sgo_tpx[12] =
+{ 0, 64, 128, 192, 256, 320, 0, 64, 128, 192, 256, 320 };
+static const int sgo_tpy[12] = { 0, 0, 0, 0, 0, 0, 256, 256, 256, 256, 256, 256 };
+
+/*  sgo.h  独自の変数形  */
+SpriteTable sptable[DEFOBJ];
+// static SpriteView spview[MAXOBJ];
+
+#define IMAGE_ADJUSTMENT (0) 
+
+/**
+ * 一つの画像をpageno(page number)で区切るtexture_page_offsetで
+ * pagenoに対応した領域のx,yを用意しておく。PlayStationではpageno
+ * で区切る必要があったのだろうが、PS2では全く意味はなさない。
+ */
+static const struct texture_page_offset {
+    int x;
+    int y;
+} texpage_offset[] = {
+    {0, 0}, {128 + IMAGE_ADJUSTMENT, 0}, {256 + IMAGE_ADJUSTMENT, 0}, {384 + IMAGE_ADJUSTMENT, 0}};
+
+/*-------------------------------------------------------------
+  関数プロトタイプ
+  ---------------------------------------------------------------*/
+
+void DefSpriteEx(int number, short middlex, short middley)
+{
+    sptable[number].mx = middlex;
+    sptable[number].my = middley;
+}
+
+
+void SDL_GL_Enter2DMode()
+{
+    //	SDL_Surface *sc = SDL_GetVideoSurface();
+
+    /* Note, there may be other things you need to change,
+       depending on how you have your OpenGL state set up.
+    */
+    glPushAttrib(GL_ENABLE_BIT);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_CULL_FACE);
+    glEnable(GL_TEXTURE_2D);
+
+    /* This allows alpha blending of 2D textures with the scene */
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+    glViewport(0, 0, screen->w, screen->h);
+
+    glMatrixMode(GL_PROJECTION);
+    glPushMatrix();
+    glLoadIdentity();
+
+    glOrtho(0.0, (GLdouble)screen->w, (GLdouble)screen->h, 0.0, 0.0, 1.0);
+
+    glMatrixMode(GL_MODELVIEW);
+    glPushMatrix();
+    glLoadIdentity();
+
+    //	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+}
+
+
+void SDL_GL_Leave2DMode()
+{
+    glMatrixMode(GL_MODELVIEW);
+    glPopMatrix();
+
+    glMatrixMode(GL_PROJECTION);
+    glPopMatrix();
+
+    glPopAttrib();
+}
+
+
+static int power_of_two(int input)
+{
+    int value = 1;
+
+    while ( value < input ) {
+	value <<= 1;
+    }
+    return value;
+}
+
+
+void DefSprite(int number, const char *name, float w, float h, int color, OBJECT *obj)
+{
+    SURFACE *surfaces;
+    surfaces = search_node(obj, name);
+    if(surfaces == NULL)
+    {
+	fprintf(stderr, "can't get node\n");
+	printf("%s", name);
+	SDL_Quit();
+	exit(1);
+    }
+    sptable[number].w = w;
+    sptable[number].h = h;
+    sptable[number].color = (color & 32);
+    sptable[number].mx = w / 2;
+    sptable[number].my = h / 2;
+    sptable[number].tex_w = power_of_two(sptable[number].w);
+    sptable[number].tex_h = power_of_two(sptable[number].h);
+    texMinX[number] = 0.0f;
+    texMinY[number] = 0.0f;
+    texMaxX[number] = (GLfloat)sptable[number].w / sptable[number].tex_w;
+    texMaxY[number] = (GLfloat)sptable[number].h / sptable[number].tex_h;  
+    printf("texMaxX = %f, w = %d, tex_w = %d\n",
+	   texMaxX[number], sptable[number].w, sptable[number].tex_w);
+    sptable[number].texture = surfaces->texture;
+}
+
+void PutSprite(int zorder, short x, short y, int number)
+{
+    glBindTexture(GL_TEXTURE_2D, (GLuint)sptable[number].texture);
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glBegin(GL_QUADS);
+    glTexCoord2f(texMinX[number],texMinY[number]); glVertex2i((GLuint)x,   (GLuint)y  );
+    glTexCoord2f(texMinX[number],texMaxY[number]); glVertex2i((GLuint)x, (GLuint)(y+sptable[number].tex_h)  );
+    glTexCoord2f(texMaxX[number],texMaxY[number]); glVertex2i((GLuint)(x+sptable[number].tex_w),   (GLuint)(y+sptable[number].tex_h));
+    glTexCoord2f(texMaxX[number],texMinY[number]); glVertex2i((GLuint)(x+sptable[number].tex_w), (GLuint)y);
+    glEnd();
+    glDisable(GL_BLEND);
+}
+
+void PutSpriteEx(int number, int x, int y, float scalex, float scaley, float angle)
+{
+    SpriteTable *m = &sptable[number];
+    x -= m->w;
+    y -= m->h;
+
+    SDL_GL_Enter2DMode();
+    glEnable(GL_TEXTURE_2D);
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glBindTexture(GL_TEXTURE_2D, (GLuint)sptable[number].texture);
+    glTranslatef(x + m->w/2, y + m->h/2, 0.0);
+    glRotatef(angle, 0.0, 0.0, 1.0);
+    glScalef(scalex, scaley, 1.0);
+    glBegin(GL_TRIANGLE_STRIP);
+    {
+	glTexCoord2f(texMinX[number], texMinY[number]); glVertex2i(-m->w/2, -m->h/2);
+	glTexCoord2f(texMaxX[number], texMinY[number]); glVertex2i( m->w/2, -m->h/2);
+	glTexCoord2f(texMinX[number], texMaxY[number]); glVertex2i(-m->w/2,  m->h/2);
+	glTexCoord2f(texMaxX[number], texMaxY[number]); glVertex2i( m->w/2,  m->h/2);
+    }
+    glEnd();
+    glDisable(GL_TEXTURE_2D);
+    glDisable(GL_BLEND);
+    SDL_GL_Leave2DMode();
+    //  SDL_GL_SwapBuffers();
+}
+
+
+
+struct SGO_PAD pad[2];
+
+#ifdef ENABLE_TRACEMODE
+extern int runmode;
+#endif				//ENABLE_TRACEMODE
+
+/* コントローラ状態の読み込み */
+void Pad(SDL_Joystick *joy)
+{
+    Sint16 axis;
+
+    SDL_JoystickUpdate();
+  
+    if(SDL_JoystickGetButton(joy,PS2_CROSS)==SDL_PRESSED)
+	pad[0].k0++;
+    else
+	pad[0].k0=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_CIRCLE)==SDL_PRESSED)
+	pad[0].k1++;
+    else
+	pad[0].k1=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_SQUARE)==SDL_PRESSED)
+	pad[0].k3++;
+    else
+	pad[0].k3=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_TRIANGLE)==SDL_PRESSED)
+	pad[0].k4++;
+    else
+	pad[0].k4=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_L1)==SDL_PRESSED)
+	pad[0].l1++;
+    else
+	pad[0].l1=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_R1)==SDL_PRESSED)
+	pad[0].r1++;
+    else
+	pad[0].r1=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_L2)==SDL_PRESSED)
+	pad[0].l2++;
+    else
+	pad[0].l2=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_R2)==SDL_PRESSED)
+	pad[0].r2++;
+    else
+	pad[0].r2=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_START)==SDL_PRESSED)
+	pad[0].st++;
+    else
+	pad[0].st=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_SELECT)==SDL_PRESSED)
+	pad[0].se++;
+    else
+	pad[0].se=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_L3)==SDL_PRESSED)
+	pad[0].l3++;
+    else
+	pad[0].l3=0;
+  
+    if(SDL_JoystickGetButton(joy,PS2_R3)==SDL_PRESSED)
+	pad[0].r3++;
+    else
+	pad[0].r3=0;
+    //x
+    axis=SDL_JoystickGetAxis(joy,0);
+    if(axis>=3200){
+	pad[0].left=0;
+	pad[0].right++;
+    }
+    else if(axis<=-3200){
+	pad[0].right=0;
+	pad[0].left++;
+    }
+    else {
+	pad[0].right=0;
+	pad[0].left=0;
+    }
+    //y
+    axis=SDL_JoystickGetAxis(joy,1);
+    if(axis>=3200){
+	pad[0].up=0;
+	pad[0].down++;
+    }
+    else if(axis<=-3200){
+	pad[0].down=0;
+	pad[0].up++;
+    }
+    else {
+	pad[0].down=0;
+	pad[0].up=0;
+    }
+
+    if ((pad[0].l1 != 0) && (pad[0].r1 != 0) &&
+	(pad[0].l2 != 0) && (pad[0].r2 != 0) &&
+	(pad[0].st != 0) && (pad[0].se != 0)) {
+	pad[0].quit = 1;
+    } else {
+	pad[0].quit = 0;
+    }
+	
+}
+
+
+void keybord()
+{
+    SDL_PumpEvents();
+    Uint8 *keys = SDL_GetKeyState(NULL);
+
+    if (keys[SDLK_UP]) {
+	pad[0].up++;
+    } else {
+	pad[0].up = 0;
+    }
+    if (keys[SDLK_DOWN]) {
+	pad[0].down++;
+    } else {
+	pad[0].down = 0;
+    }
+
+    if (keys[SDLK_RIGHT]) {
+	pad[0].right++;
+    } else {
+	pad[0].right = 0;
+    }
+
+    if (keys[SDLK_LEFT]) {
+	pad[0].left++;
+    } else {
+	pad[0].left = 0;
+    }
+
+    if (keys[SDLK_a]) {
+	pad[0].k0++;
+    } else {
+	pad[0].k0 = 0;
+    }
+
+    if (keys[SDLK_z]) {
+	pad[0].k1++;
+    } else {
+	pad[0].k1 = 0;
+    }
+
+    if (keys[SDLK_s]) {
+	pad[0].k3++;
+    } else {
+	pad[0].k3 = 0;
+    }
+    
+    if (keys[SDLK_x]) {
+	pad[0].k4++;
+    } else {
+	pad[0].k4 = 0;
+    }
+
+    if (keys[SDLK_r]) {
+	pad[0].r2++;
+    } else {
+	pad[0].r2 = 0;
+    }
+
+    if (keys[SDLK_e]) {
+	pad[0].r1++;
+    } else {
+	pad[0].r1 = 0;
+    }
+
+    if (keys[SDLK_w]) {
+	pad[0].l1++;
+    } else {
+	pad[0].l1 = 0;
+    }
+
+    if (keys[SDLK_q]) {
+	pad[0].l2++;
+    } else {
+	pad[0].l2 = 0;
+    }
+
+    // START ボタンは Return が似合う気がする
+    //if(keys[SDLK_1])
+    if (keys[SDLK_RETURN]) {
+	pad[0].st++;
+    } else {
+	pad[0].st = 0;
+    }
+
+    if (keys[SDLK_2]) {
+	pad[0].se++;
+    } else {
+	pad[0].se = 0;
+    }
+
+    if (keys[SDLK_ESCAPE]) {
+	SDL_Quit();
+	exit(1);
+	//pad[0].st = 1;
+	//pad[0].se = 1;
+    }
+
+    if (keys[SDLK_0]) {
+	pad[0].quit = 1;
+    } else {
+	pad[0].quit = 0;
+    }
+}
+