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#include <SDL.h>
#include "files.h"
#include "menu.h"
#include "draw.h"
#include "dfont.h"
SDL_Surface *menu_screen;
int Main_Menu(int *mission_number, SDL_Surface *screen)
{
SDL_Rect dest;
int command = 0;
int selected_button = BUTTON_PLAY;
int action;
Uint32 menu_colour = SDL_MapRGB(screen->format, 0, 200,0);
menu_screen = screen;
dest.x = 400; dest.y = 0; dest.w = 624; dest.h = 768;
Display_Mission(*mission_number);
while (! command)
{
Draw_Main_Menu(selected_button, menu_colour);
SDL_UpdateRects(menu_screen, 1, &dest);
action = Menu_Input();
if (action == BUTTON_ACTIVATE)
action = selected_button;
switch (action)
{
case BUTTON_PLAY: command = ACTION_MISSION; break;
case BUTTON_QUIT: command = ACTION_QUIT; break;
case BUTTON_PREV_MISSION:
selected_button = BUTTON_PREV_MISSION;
*mission_number = New_Mission(MISSION_PREVIOUS, *mission_number);
Display_Mission(*mission_number);
break;
case BUTTON_NEXT_MISSION:
selected_button = BUTTON_NEXT_MISSION;
*mission_number = New_Mission(MISSION_NEXT, *mission_number);
Display_Mission(*mission_number);
break;
case BUTTON_MOVE_UP:
selected_button--;
if (selected_button < BUTTON_PLAY)
selected_button = BUTTON_NEXT_MISSION;
break;
case BUTTON_MOVE_DOWN:
selected_button++;
if (selected_button > BUTTON_NEXT_MISSION)
selected_button = BUTTON_PLAY;
break;
}
SDL_Delay(100);
}
#ifdef DEBUG
printf("Returning menu command: %d\n", command);
#endif
return command;
}
int New_Mission(int next_prev, int old_mission)
{
FILE *mission_file;
char *mission_path;
char mission_filename[256];
int new_mission;
if (next_prev == MISSION_PREVIOUS)
{
new_mission = old_mission - 1;
if (new_mission < 0)
new_mission = 0;
}
else
{
new_mission = old_mission + 1;
}
#ifndef WIN32
snprintf(mission_filename, 256, "data/mission%d.dat", new_mission);
#else
sprintf(mission_filename, "data/mission%d.dat", new_mission);
#endif
mission_path = Find_Data_File(mission_filename);
mission_file = fopen(mission_path, "r");
if ( (mission_path) && (mission_path != mission_filename) )
free(mission_path);
// found mission file, return the new number
if (mission_file)
{
fclose(mission_file);
return new_mission;
}
// we do not have a matching mission file, return the last good one
return old_mission;
}
int Display_Mission(int mission_number)
{
char *full_path, filename[256];
FILE *mission_file;
char line[256];
int y = 610;
DFont my_font("images/font.png", "data/font.dat");
Uint32 menu_background = SDL_MapRGB(menu_screen->format, 0, 0, 0);
#ifndef WIN32
snprintf(filename, 256, "data/orders%d.txt", mission_number);
#else
sprintf(filename, "data/orders%d.txt", mission_number);
#endif
full_path = Find_Data_File(filename);
mission_file = fopen(full_path, "r");
if ( (full_path) && (full_path != filename) )
free(full_path);
if (mission_file)
{
FillRectangle(menu_screen, 440, 610, 980, 730, menu_background);
full_path = fgets(line, 256, mission_file);
while (full_path)
{
my_font.PutString(menu_screen, 440, y, line);
full_path = fgets(line, 256, mission_file);
y += 12;
}
fclose(mission_file);
}
return TRUE;
}
int Draw_Main_Menu(int selected, Uint32 menu_colour)
{
Uint32 menu_background = SDL_MapRGB(menu_screen->format, 0, 0, 0);
// wipe everything first
DrawRectangle(menu_screen, 540, 160, 885, 235, menu_background);
DrawRectangle(menu_screen, 540, 260, 885, 335, menu_background);
FillCircle(menu_screen, 465, 565, 5, menu_background);
FillCircle(menu_screen, 940, 565, 5, menu_background);
switch (selected)
{
case BUTTON_PLAY:
DrawRectangle(menu_screen, 540, 160, 885, 235, menu_colour);
break;
case BUTTON_QUIT:
DrawRectangle(menu_screen, 540, 260, 885, 335, menu_colour);
break;
case BUTTON_PREV_MISSION:
FillCircle(menu_screen, 465, 565, 5, menu_colour);
break;
case BUTTON_NEXT_MISSION:
FillCircle(menu_screen, 940, 565, 5, menu_colour);
break;
}
return TRUE;
}
int Menu_Input()
{
int action = 0;
SDL_Event event;
int mousex, mousey;
#ifdef DEBUG
printf("About to check for event.\n");
#endif
while ( SDL_PollEvent(&event) )
{
#ifdef DEBUG
printf("Got event.\n");
#endif
switch (event.type)
{
case SDL_MOUSEBUTTONDOWN:
mousex = event.button.x;
mousey = event.button.y;
if ( (mousex > 540) && (mousex < 885) &&
(mousey > 160) && (mousey < 235) )
action = BUTTON_PLAY;
else if ( (mousex > 540) && (mousex < 885) &&
(mousey > 260) && (mousey < 335) )
action = BUTTON_QUIT;
else if ( (mousex > 440) && (mousex < 475) &&
(mousey > 550) && (mousey < 580) )
action = BUTTON_PREV_MISSION;
else if ( (mousex > 920) && (mousex < 960) &&
(mousey > 550) && (mousey < 580) )
action = BUTTON_NEXT_MISSION;
break; // end of mouse stuff
case SDL_KEYDOWN:
if (event.key.keysym.sym == SDLK_UP)
action = BUTTON_MOVE_UP;
else if (event.key.keysym.sym == SDLK_DOWN)
action = BUTTON_MOVE_DOWN;
else if (event.key.keysym.sym == SDLK_ESCAPE)
action = BUTTON_QUIT;
else if ( (event.key.keysym.sym == SDLK_SPACE) ||
(event.key.keysym.sym == SDLK_RETURN) )
action = BUTTON_ACTIVATE;
break;
} // end of switch
} // end of which event
#ifdef DEBUG
printf("Returning action: %d\n", action);
#endif
return action;
}
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