int main()
{
GsDispEnv my_dispenv;
GsDrawEnv my_drawenv;
GsLine my_line;
GsSprite my_sprite;
GsRectangle colorbox;
GsDot my_dot;
unsigned short pad1;
unsigned int WasL2=0, WasR2=0, WasL1=0, WasR1=0, WasSelect = 0;
int x, y;
PSX_InitEx(PSX_INIT_NOBIOS);
GsInit();
GsClearMem();
SetVBlankHandler(my_vblank_handler);
// This has to be interlaced
GsSetVideoModeEx(640, 480, EXAMPLES_VMODE, 0, 1, 0);
my_dispenv.x = 0;
my_dispenv.y = 0;
GsSetDispEnv(&my_dispenv);
my_drawenv.dither = 0;
my_drawenv.draw_on_display = 1;
my_drawenv.x = 0;
my_drawenv.y = 0;
my_drawenv.w = 640;
my_drawenv.h = 512;
my_drawenv.ignore_mask = 0;
my_drawenv.set_mask = 0;
GsSetDrawEnv(&my_drawenv);
GsSetList(primitive_list);
load_ui_graphics();
while(GsIsDrawing());
colorbox.x = 0;
colorbox.y = 0;
colorbox.w = 640;
colorbox.h = 511;
colorbox.r = 255;
colorbox.g = 255;
colorbox.b = 255;
colorbox.attribute = 0;
GsSortRectangle(&colorbox);
sort_color_boxes();
my_sprite.x = 0;
my_sprite.y = 0;
my_sprite.tpage = 10;
my_sprite.u = 0;
my_sprite.v = 0;
my_sprite.attribute = 0;
my_sprite.cx = 640;
my_sprite.cy = 480;
my_sprite.r = my_sprite.g = my_sprite.b = NORMAL_LUMINOSITY;
my_sprite.scalex = my_sprite.scaley = 0;
my_sprite.w = 16;
my_sprite.h = 24;
GsDrawList();
while(GsIsDrawing());
// Backup 32x32 area
MoveImage(cursor_x, cursor_y, 992, 0, 32, 32);
my_dot.attribute = 0;
while(1)
{
while(speed_counter)
{
old_cursor_x = cursor_x;
old_cursor_y = cursor_y;
// Restore 32x32 area
MoveImage(992, 0, old_cursor_x, old_cursor_y, 32, 32);
while(GsIsDrawing());
PSX_ReadPad(&pad1, NULL);
if(pad1 & PAD_LEFT)
cursor_x-=cursor_speed;
if(pad1 & PAD_RIGHT)
cursor_x+=cursor_speed;
if(pad1 & PAD_UP)
cursor_y-=cursor_speed;
if(pad1 & PAD_DOWN)
cursor_y+=cursor_speed;
if(cursor_x <= 0)
cursor_x = 0;
if(pad1 & PAD_CROSS)
{
if(cursor_y >= 384)
{
y = (cursor_y - 384) >> 4;
x = cursor_x >> 6;
current_color[0] = paint_colors[(y * 10)+x][0];
current_color[1] = paint_colors[(y * 10)+x][1];
current_color[2] = paint_colors[(y * 10)+x][2];
}
else
{
switch(brush_type)
{
case 0:
if(cursor_y >= 384)
{
break;
}
my_dot.r = current_color[0];
my_dot.g = current_color[1];
my_dot.b = current_color[2];
my_dot.x = cursor_x;
my_dot.y = cursor_y;
GsSortDot(&my_dot);
break;
case 1:
if(cursor_y >= 380)
{
break;
}
my_dot.r = current_color[0];
my_dot.g = current_color[1];
my_dot.b = current_color[2];
my_dot.x = cursor_x + 1;
my_dot.y = cursor_y;
GsSortDot(&my_dot);
my_dot.x++;
GsSortDot(&my_dot);
my_dot.y++;
my_dot.x-=2;
GsSortDot(&my_dot);
my_dot.x++;
GsSortDot(&my_dot);
my_dot.x++;
GsSortDot(&my_dot);
my_dot.x++;
GsSortDot(&my_dot);
my_dot.y++;
my_dot.x-=2;
GsSortDot(&my_dot);
my_dot.x++;
GsSortDot(&my_dot);
break;
}
}
GsDrawList();
while(GsIsDrawing());
}
if((pad1 & PAD_R2) && !WasR2)
{
cursor_speed++;
WasR2 = 1;
}
if((pad1 & PAD_L2) && !WasL2)
{
cursor_speed--;
WasL2 = 1;
}
if(!(pad1 & PAD_R2))
WasR2 = 0;
if(!(pad1 & PAD_L2))
WasL2 = 0;
if((pad1 & PAD_R1) && !WasR1)
{
brush_type++;
WasR1 = 1;
}
if((pad1 & PAD_L1) && !WasL1)
{
brush_type--;
WasL1 = 1;
}
if((pad1 & PAD_SELECT) && !WasSelect)
{
my_sprite.attribute ^= (ENABLE_TRANS | TRANS_MODE(0));
my_dot.attribute ^= (ENABLE_TRANS | TRANS_MODE(0));
WasSelect = 1;
}
if(!(pad1 & PAD_SELECT))
WasSelect = 0;
if(!(pad1 & PAD_R1))
WasR1 = 0;
if(!(pad1 & PAD_L1))
WasL1 = 0;
if(cursor_speed <= 0)
cursor_speed = 1;
if(cursor_speed >= 8)
cursor_speed = 7;
if(brush_type <= 0)
brush_type = 0;
if(brush_type > 1)
brush_type = 1;
// Backup 32x32 area
MoveImage(cursor_x, cursor_y, 992, 0, 32, 32);
while(GsIsDrawing());
// if(cursor_x != old_cursor_x || cursor_y != old_cursor_y)
// {
// printf("cx = %d, cy = %d, cursor_speed = %d, brush_type = %d\n",
// cursor_x, cursor_y, cursor_speed, brush_type);
my_sprite.x = cursor_x;
my_sprite.y = cursor_y;
GsSortSimpleSprite(&my_sprite);
GsDrawList();
while(GsIsDrawing());
// }
speed_counter--;
}
void game_run()
{
int x, y, a, b, c;
unsigned short padbuf;
while(speed_counter > 0)
{
scc++;
if(vibration_cntdown > 0)
{
printf("vibration = %d\n", vibration_cntdown);
pad_enable_vibration(0);
pad_set_vibration(0, 0xFF, 0x80);
vibration_cntdown--;
if(vibration_cntdown == 0)
pad_set_vibration(0, 0, 0);
}
PSX_ReadPad(&padbuf, NULL);
if(scc == 5 && !game_over)
{
if(snake_dir <= SNAKE_DIR_RIGHT)
{
if(padbuf & PAD_UP)
snake_dir = SNAKE_DIR_UP;
if(padbuf & PAD_DOWN)
snake_dir = SNAKE_DIR_DOWN;
}
else
{
if(padbuf & PAD_LEFT)
snake_dir = SNAKE_DIR_LEFT;
if(padbuf & PAD_RIGHT)
snake_dir = SNAKE_DIR_RIGHT;
}
for(y = 0; y < 29; y++)
for(x = 0; x < 40; x++)
{
if(snake_array[y][x] == snake_size)
{
switch(snake_dir)
{
case SNAKE_DIR_LEFT:
b = y;
a = x-1;
break;
case SNAKE_DIR_RIGHT:
b = y;
a = x+1;
break;
case SNAKE_DIR_UP:
b = y-1;
a = x;
break;
case SNAKE_DIR_DOWN:
b = y+1;
a = x;
break;
}
c = check_snake_collision(a,b);
if(c)
{
snake_array[b][a] = snake_size+1;
if(c==2)
{
snake_size++;
score+=100;
//printf("%d\n", score);
SsKeyOn(2);
new_apple();
}
}
else
{
vibration_cntdown = 10;
game_over = 1;
SsKeyOff(0);
SsKeyOn(1);
scc = 0;
}
if(snake_array[y][x] == 1 && c!=2)
snake_array[y][x] = 0;
goto out_of_collision_checking;
}
}
out_of_collision_checking:
for(y = 0; y < 29; y++)
for(x = 0; x < 40; x++)
if(snake_array[y][x]&&snake_array[y][x]<0x80&&c!=2)
snake_array[y][x]--;
scc = 0;
}
else if(game_over)
{
scc++;
if(scc >= 510)
{
if((padbuf & PAD_CROSS) && !cross_pressed)
{
game_setup();
cross_pressed = 1;
}
else if((padbuf & PAD_CIRCLE) && !circle_pressed)
{
circle_pressed = 1;
GsSetVideoMode(320, 240, pal_or_ntsc_selection());
game_setup();
}
if(!(padbuf & PAD_CROSS))
cross_pressed = 0;
if(!(padbuf & PAD_CIRCLE))
circle_pressed = 0;
}
}
speed_counter--;
}
if(screen_old)
{
game_rect.x = 0;
game_rect.y = 0;
game_rect.w = 320;
game_rect.h = 240;
game_rect.r = 0;
game_rect.g = 0;
game_rect.b = 0;
game_rect.attribute = 0;
GsSortRectangle(&game_rect);
game_sprite.x = 0;
game_sprite.y = 0;
game_sprite.w = 256;
game_sprite.h = 240;
game_sprite.u = 0;
game_sprite.v = 0;
game_sprite.r = NORMAL_LUMINOSITY;
game_sprite.g = NORMAL_LUMINOSITY;
game_sprite.b = NORMAL_LUMINOSITY;
game_sprite.tpage = 5;
game_sprite.attribute = COLORMODE(COLORMODE_16BPP);
GsSortSimpleSprite(&game_sprite);
game_sprite.x += 256;
game_sprite.w = 64;
game_sprite.tpage = 9;
GsSortSimpleSprite(&game_sprite);
game_rect.w = 8;
game_rect.h = 8;
game_rect.attribute = ENABLE_TRANS | TRANS_MODE(0);
for(y = 0; y < 29; y++)
{
for(x = 0; x < 40; x++)
{
game_rect.x = x * 8;
game_rect.y = y * 8;
if(snake_array[y][x] >= 1 && snake_array[y][x] <= 0x7F)
{
game_rect.r = 0;
game_rect.g = 255;
game_rect.b = 0;
GsSortRectangle(&game_rect);
}
else if(snake_array[y][x] == 0x80)
{
game_rect.r = 255;
game_rect.g = 0;
game_rect.b = 255;
GsSortRectangle(&game_rect);
}
else if(snake_array[y][x] == 0x81)
{
game_rect.r = 0;
game_rect.g = 0;
game_rect.b = 128;
GsSortRectangle(&game_rect);
}
}
}
sprintf(string_buf, "SCORE: %d", score);
game_print(string_buf, 0, 232);
if(game_over)
{
game_rect.w = 320;
game_rect.h = 240;
game_rect.x = 0;
game_rect.y = 0;
if(scc<=255)x=scc;else x=255;
game_rect.r = x;
game_rect.g = x;
game_rect.b = x;
game_rect.attribute = ENABLE_TRANS|TRANS_MODE(2);
GsSortRectangle(&game_rect);
if(scc>=300)
{
game_center_print("GAME OVER!", 160, 120);
}
if(scc>=420)
game_center_print("WHAT DO YOU WANT TO DO NOW?", 160, 136);
if(scc>=450)
game_center_print("PRESS X TO RESTART THE GAME.",160, 152);
if(scc>=480)
game_center_print("PRESS O FOR PAL/NTSC SELECTION SCREEN.",160,168);
if(scc>=510)
game_center_print("MADE WITH PSXSDK BY GIUSEPPE GATTA, 2010", 160, 200);
}
GsDrawList();
// While the graphic synthesizer (video card) is drawing
// just sleep.
while(GsIsDrawing());
// Swap drawing and display Y position, and swap list array
// to use. In this way we achieve a double buffer.
if(game_dispenv.y == 0)
{
game_dispenv.y = 256;
game_drawenv.y = 0;
}
else
{
game_dispenv.y = 0;
game_drawenv.y = 256;
}
GsSetDispEnv(&game_dispenv);
GsSetDrawEnv(&game_drawenv);
screen_old = 0;
}
}
