Catching a fish in C

#include<stdio.h> 
#include<conio.h> 
#include<graphics.h>
void fish();
void fishcatch();
int fishx = 0, fishy = 460, fishang = 0, tempx, tempy, fishx2 = 350, fishy2 = 400;
void main() {
    int gdriver = DETECT, gmode, errorcode;
    int x, y, ch, yincr = 0;
    initgraph( & gdriver, & gmode, "");
    errorcode = graphresult();
    if (errorcode != grOk) {
        printf("Graphics error: %s\n", grapherrormsg(errorcode));
        printf("Press any key to halt:");
        getch();
        exit(1);
    }
    x = 350;
    y = 240;

    while (!kbhit()) {
        rectangle(-1, 240, 641, 481);
        setfillstyle(1, BLUE);
        floodfill(1, 241, 15);
        line(x, y, x + 100, y);
        line(x + 100, y, x + 130, y - 20);
        line(x, y, x - 30, y - 20);
        line(x - 30, y - 20, x + 130, y - 20);
        setfillstyle(1, BROWN);
        floodfill(x + 1, y - 1, 15);
        arc(x + 50, y - 20, 0, 180, 15);
        setfillstyle(1, RED);
        floodfill(x + 50, y - 21, 15);
        circle(x + 50, y - 40, 6);
        setfillstyle(1, LIGHTGRAY);
        floodfill(x + 50, y - 41, 15);
        delay(50);
        cleardevice();
        if (x >= 300)
            x = x - 1;
        else if (y + yincr <= 400) {
            if (fishx < 330)
                yincr++;
        }
        line(x + 40, y, x + 50, y + yincr);

        if (x <= 350) {
            fishx++;
            if (fishx >= 330) {
                if (yincr >= 0) {
                    fishcatch();
                    fishy2--;
                    yincr--;
                } else {
                    cleardevice();
                    printf("Fish curry: Rs.15/-");
                    getch();
                    exit(0);
                }
            } else {
                fish();

                if (y + yincr >= 390)
                    fishy = fishy - 0.5;

                if (fishy <= 400)
                    fishy = 400;

                if (fishx >= 330)
                    fishx = 330;
            }
        }

    }


    if (kbhit()) {
        //printf("%c",getch());
    }
    getch();
}


void fish() {
    line(fishx, fishy, fishx + 10, fishy - 5);
    line(fishx, fishy, fishx + 10, fishy + 5);
    line(fishx + 10, fishy - 5, fishx + 20, fishy);
    line(fishx + 20, fishy, fishx + 10, fishy + 5);
    line(fishx, fishy, fishx - 3, fishy - 3);
    line(fishx - 3, fishy - 3, fishx - 3, fishy + 3);
    line(fishx - 3, fishy + 3, fishx, fishy);
    setfillstyle(1, BROWN);
    floodfill(fishx + 2, fishy, 15);
    floodfill(fishx - 1, fishy, 15);
}

void fishcatch() {
    line(fishx2, fishy2, fishx2 + 5, fishy2 + 10);
    line(fishx2, fishy2, fishx2 - 5, fishy2 + 10);
    line(fishx2 + 5, fishy2 + 10, fishx2, fishy2 + 20);
    line(fishx2 - 5, fishy2 + 10, fishx2, fishy2 + 20);
    line(fishx2, fishy2, fishx2 + 3, fishy2 + 23);
    line(fishx2, fishy2, fishx2 - 3, fishy2 + 23);
    line(fishx2 + 3, fishy2 + 23, fishx2 - 3, fishy2 + 23);
    setfillstyle(1, BROWN);
    floodfill(fishx2, fishy2 + 2, 15);
    floodfill(fishx2, fishy2 + 22, 15);
}