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EARTHQUA.CPP
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C/C++ Source or Header
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1995-02-04
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12KB
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528 lines
// EARTHQUA.CPP - The main program for the Earthquake Damage Prevention
// program. Displays the menus.
// Created by Misha Koshelev.
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <dos.h>
#include <process.h>
#include <graphics.h>
#include "svga256.h"
#include "tutor.h"
// Definitons
#define TUTORIAL 0
#define SIMULATION 1
#define INTRO 0
#define EQSIM 1
#define BMSIM 2
#define QUIT 255
#define UP_ARROW 72
#define DOWN_ARROW 80
void eqsimmain(void);
// Function definitons
int huge Svga256Detect(void);
void drawtitle(void);
void loadpal(char *);
void hrainbow(int, int, int, int, int, int, int, int);
void vrainbow(int, int, int, int, int, int, int, int);
void highlightitem(int, int, int, int, int, int);
void unhighlightitem(int, int, int, int, int, int);
void nextitem(int, int);
void previtem(int, int);
int mainmenu(void);
int tutormenu(void);
int page;
void main(int argc, char *argv[])
{
int gd = DETECT, gm, errorcode;
int y = 10;
int ret, done=0, tdone = 0;
// Set up graphics mode
// Install the Super VGA 256 color driver
installuserdriver("Svga256", Svga256Detect);
// read the result of installation
errorcode = graphresult();
if (errorcode != grOk) // an error occurred
{
printf("Graphics error: %s\n", grapherrormsg(errorcode));
printf("Press any key to quit...");
getch();
exit(1);
}
// Initalize graphics mode
initgraph(&gd, &gm, "");
// read result of initialization
errorcode = graphresult();
if (errorcode != grOk) // an error occurred
{
printf("Graphics error: %s\n", grapherrormsg(errorcode));
printf("Press any key to quit...");
getch();
exit(1);
}
// Load the palette
loadpal("std.pal");
// Display the title screen
setactivepage(1);
page = 1;
cleardevice();
setcolor(WHITE);
settextstyle(DEFAULT_FONT, HORIZ_DIR, 7);
outtextxy(10, 10,"EARTHQUAKE");
y += textheight("EARTHQUAKE") + 10;
settextstyle(DEFAULT_FONT, HORIZ_DIR, 2);
outtextxy(170, y, "DAMAGE PREVENTION");
y += textheight("DAMAGE PREVENTION") + 10;
settextstyle(DEFAULT_FONT, HORIZ_DIR, 1);
outtextxy(170, y, "Press any key to continue...");
y += textheight("Press any key to continue...") + 10;
hrainbow(1,1,640,y,WHITE,1,96,111);
setvisualpage(1);
while(!kbhit());
getch();
setfillstyle(SOLID_FILL, BLACK);
bar(1, y-20, 640, y);
while (!done)
{
ret = mainmenu();
if (ret == QUIT)
done = 1;
if (ret == TUTORIAL)
{
setfillstyle(SOLID_FILL, BLACK);
bar(1, 120, 640, 480);
tdone = 0;
while (!tdone)
{
ret = tutormenu();
if (ret == QUIT)
tdone = 1;
if (ret == INTRO)
{
tutorintro();
// Draw the title screen
drawtitle();
}
if (ret == EQSIM)
{
tutoreqsim();
// Draw the title screen
drawtitle();
}
if (ret == BMSIM)
{
tutorbmsim();
// Draw the title screen
drawtitle();
}
}
setfillstyle(SOLID_FILL, BLACK);
bar(1, 120, 640, 480);
}
if (ret == SIMULATION)
{
setviewport(0,0,639,479,1);
settextstyle(DEFAULT_FONT, HORIZ_DIR, 1);
setcolor(WHITE);
eqsimmain();
cleardevice();
// Draw the title screen
drawtitle();
}
}
closegraph();
}
// Returns what video mode to use.
//
int huge Svga256Detect(void)
{
return SVGA640x480x256;
}
// Draws the title screen in the appropriate page and displays it.
//
void drawtitle(void)
{
int y;
// Display the title screen
if (page == 1)
page = 0;
if (page == 0)
page = 1;
setactivepage(page);
cleardevice();
y = 10;
setcolor(WHITE);
settextstyle(DEFAULT_FONT, HORIZ_DIR, 7);
outtextxy(10, 10,"EARTHQUAKE");
y += textheight("EARTHQUAKE") + 10;
settextstyle(DEFAULT_FONT, HORIZ_DIR, 2);
outtextxy(170, y, "DAMAGE PREVENTION");
y += textheight("DAMAGE PREVENTION") + 10;
settextstyle(DEFAULT_FONT, HORIZ_DIR, 1);
hrainbow(1,1,640,y,WHITE,1,96,111);
setvisualpage(page);
}
// Loads the palette from a raw palette file.
//
void loadpal(char *fn)
{
int color;
int r, g, b;
FILE *pal;
pal = fopen(fn, "rb");
if (pal == NULL)
{
closegraph();
printf("Error: Could not open palette file %s", fn);
exit(1);
}
for (color = 0; color < 256; color++)
{
fread(&r, 1, 1, pal);
fread(&g, 1, 1, pal);
fread(&b, 1, 1, pal);
setrgbpalette(color, r, g, b);
}
fclose(pal);
};
// Draws a horizontal "rainbow" on every pixel between (x1, y1) and
// (x2, y2) of keycolor, where each color
// takes barsize pixels, and the colors start from startc and end
// with endc.
//
void hrainbow(int x1, int y1, int x2, int y2, int keyc, int barsize,
int startc, int endc)
{
int currcolor = startc;
int ccpix = barsize;
for (int k=y1; k<y2+1; k++)
{
for (int l=x1; l<x2+1; l++)
{
if (getpixel(l, k) == keyc)
{
if (ccpix == 0)
{
ccpix = barsize;
currcolor++;
if (currcolor > endc)
currcolor = startc;
}
putpixel(l, k, currcolor);
ccpix--;
}
}
ccpix = barsize;
currcolor = startc;
}
}
// Draws a vertical "rainbow" on every pixel between (x1, y1) and
// (x2, y2) of keycolor, where each color
// takes barsize pixels, and the colors start from startc and end
// with endc.
//
void vrainbow(int x1, int y1, int x2, int y2, int keyc, int barsize,
int startc, int endc)
{
int currcolor = startc;
int ccpix = barsize;
for (int k=x1; k<x2+1; k++)
{
for (int l=y1; l<y2+1; l++)
{
if (getpixel(k, l) == keyc)
{
if (ccpix == 0)
{
ccpix = barsize;
currcolor++;
if (currcolor > endc)
currcolor = startc;
}
putpixel(k, l, currcolor);
ccpix--;
}
}
ccpix = barsize;
currcolor = startc;
}
}
// Highlights an unselected item with a specific color, in which the
// text is a specific color
void highlightitem(int x, int y, int x2, int y2, int hc, int tc)
{
int i,j;
for (i=y; i<y2+1; i++)
{
for (j=x; j<x2+1; j++)
{
if (getpixel(j,i) != tc)
putpixel(j,i,hc);
}
}
}
// Unhighlights an unselected item with a specific color, in which the
// text is a specific color
void unhighlightitem(int x, int y, int x2, int y2, int hc, int tc)
{
int i,j;
for (i=y; i<y2+1; i++)
{
for (j=x; j<x2+1; j++)
{
if (getpixel(j,i) != tc)
putpixel(j,i,hc);
}
}
}
// Returns the next item if ci is the current item and maxi is the number
// of items
void nextitem(int *ci, int maxi)
{
if (*ci == maxi-1)
*ci = 0;
else
*ci+=1;
}
// Returns the previous item if ci is the current item and maxi is the number
// of items
void previtem(int *ci, int maxi)
{
if (*ci == 0)
*ci = maxi-1;
else
*ci-=1;
}
// Displays the main menu. Returns the number of the item selected.
//
int mainmenu(void)
{
int x[2], y[2], x2[2], y2[2];
int curritem = 0;
int done = 0;
char ch;
// Write the instructions
settextstyle(SOLID_FILL, HORIZ_DIR, 2);
setcolor(WHITE);
outtextxy(70,130, "Use the arrow keys to choose an item, ");
outtextxy(70,150, "and press the <ENTER> key to select it.");
outtextxy(70,170, " Press the <ESC> key to quit. ");
// Draw a bluish rectangle
setcolor(143);
rectangle(10,250,630,469);
// Write text in a red color
settextstyle(SOLID_FILL, HORIZ_DIR, 4);
setcolor(32);
x[0] = 250; y[0] = 320;
outtextxy(x[0],y[0],"Tutorial");
x[0] -= 10;
x2[0] = x[0] + textwidth("Tutorial") + 10;
y2[0] = y[0] + textheight("Tutorial") + 10;
x[1] = 230; y[1] = 370;
outtextxy(x[1],y[1],"Simulation");
x[1] -= 10;
x2[1] = x[1] + textwidth("Simulation") + 10;
y2[1] = y[1] + textheight("Simulation") + 10;
// Highlight in a greenish color
highlightitem(x[curritem], y[curritem], x2[curritem], y2[curritem],
96, 32);
while (!done)
{
ch = getch();
if (ch != 0 && ch != 13 && ch != 27)
{
sound(440);
delay(100);
nosound();
}
if (ch == 13)
return curritem;
if (ch == 27)
return QUIT;
if (ch == 0)
{
ch = getch();
if (ch != UP_ARROW && ch != DOWN_ARROW)
{
sound(440);
delay(100);
nosound();
}
if (ch == UP_ARROW)
{
unhighlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
0, 32);
previtem(&curritem, 2);
highlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
96, 32);
}
if (ch == DOWN_ARROW)
{
unhighlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
0, 32);
nextitem(&curritem, 2);
highlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
96, 32);
}
}
}
}
// Displays the tutorial menu. Returns the number of the item selected.
//
int tutormenu(void)
{
int x[3], y[3], x2[3], y2[3];
int curritem = 0;
int done = 0;
char ch;
// Write the instructions
settextstyle(SOLID_FILL, HORIZ_DIR, 2);
setcolor(WHITE);
outtextxy(70,130, "Use the arrow keys to choose an item, ");
outtextxy(70,150, "and press the <ENTER> key to select it.");
outtextxy(50,170, "Press the <ESC> key go back to the main menu");
// Draw a bluish rectangle
setcolor(143);
rectangle(10,250,630,469);
// Write text in a red color
settextstyle(SOLID_FILL, HORIZ_DIR, 4);
setcolor(32);
x[0] = 218; y[0] = 260;
outtextxy(x[0],y[0],"Introduction");
x[0] -= 10;
x2[0] = x[0] + textwidth("Introduction") + 10;
y2[0] = y[0] + textheight("Introduction") + 10;
x[1] = 130; y[1] = 300;
outtextxy(x[1],y[1],"How does the earthquake");
x[1] -= 10;
x2[1] = x[1] + textwidth("How does the earthquake") + 10;
y2[1] = y[1] + textheight("How does the earthquake") + 5;
outtextxy(x[1]+80, y2[1],"simulator work?");
y2[1] += textheight("simulator work?") + 5;
x[2] = 130; y[2] = 380;
outtextxy(x[2],y[2],"How does the building");
x[2] -= 30;
x2[2] = x[2] + textwidth("movement simulator work?") + 10;
y2[2] = y[2] + textheight("How does the building") + 5;
outtextxy(x[2]+4, y2[2],"movement simulator work?");
y2[2] += textheight("movement simulator work?") + 5;
// Highlight in a greenish color
highlightitem(x[curritem], y[curritem], x2[curritem], y2[curritem],
96, 32);
while (!done)
{
ch = getch();
if (ch != 0 && ch != 13 && ch != 27)
{
sound(440);
delay(100);
nosound();
}
if (ch == 13)
return curritem;
if (ch == 27)
return QUIT;
if (ch == 0)
{
ch = getch();
if (ch != UP_ARROW && ch != DOWN_ARROW)
{
sound(440);
delay(100);
nosound();
}
if (ch == UP_ARROW)
{
unhighlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
0, 32);
previtem(&curritem, 3);
highlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
96, 32);
}
if (ch == DOWN_ARROW)
{
unhighlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
0, 32);
nextitem(&curritem, 3);
highlightitem(x[curritem], y[curritem],
x2[curritem], y2[curritem],
96, 32);
}
}
}
}