Hey guys!
I think two weeks ago I decided to create a little game. I wanted to do a "new" version of the old Arcade-classic "Pong". I wanted to integrate items into the game, like a bigger paddle, smaller paddle, fast ball and double ball.
So I made this little function - Which item appears should be random, so I used a variable called "itemhilfe" which should get attached to a random number (between 1 and 5). Depending on which number gets disgorged, different items should appear:
function items() // function to create the items
{
while(itemsaktiv = 1)
{
itemhilfe = random(5); // itemhilfe becomes 1, 2, 3, 4 or 5
if (itemhilfe = 1) // if itemhilfe becomes 1, create the big paddle item
{
paddlebig_pan.flags = SHOW;
paddlebig_pan.pos_x += 4*time_step;
paddlebig_pan.pos_y += 2*time_step;
if ((paddlebig_pan.pos_x >= 931) | (paddlebig_pan.pos_y >= 664))
{
paddlebig_pan.flags = 0;
}
if ((paddlebig_pan.pos_y > right_pan.pos_y - 12) && (paddlebig_pan.pos_y < right_pan.pos_y + 96) && (paddlebig_pan.pos_x > 943) && (paddlebig_pan.pos_x < 955))
{
big_paddle();
paddlebig_pan.flags = 0;
}
}
else if (itemhilfe = 2) // if itemhilfe becomes 2, create speedball item
{
speedball_pan.flags = SHOW;
speedball_pan.pos_x += 4*time_step;
speedball_pan.pos_y += 1*time_step;
if ((speedball_pan.pos_x >= 931) | (speedball_pan.pos_y >= 664))
{
speedball_pan.flags = 0;
}
if ((speedball_pan.pos_y > right_pan.pos_y - 12) && (speedball_pan.pos_y < right_pan.pos_y + 96) && (speedball_pan.pos_x > 943) && (speedball_pan.pos_x < 955))
{
speedball_pan.flags = 0;
ball_speed.x = 3 - 6 * (random(50) % 2);
ball_speed.y = 3 - random(6);
}
}
else if (itemhilfe = 3) // if itemhilfe becomes 3, create small paddle item
{
paddlesmall_pan.flags = SHOW;
paddlesmall_pan.pos_x += 4*time_step;
paddlesmall_pan.pos_y += -1*time_step;
if ((paddlesmall_pan.pos_x >= 931) | (paddlesmall_pan.pos_y >= 664))
{
paddlesmall_pan.flags = 0;
}
if ((paddlesmall_pan.pos_y > right_pan.pos_y - 12) && (paddlesmall_pan.pos_y < right_pan.pos_y + 96) && (paddlesmall_pan.pos_x > 943) && (paddlesmall_pan.pos_x < 955))
{
small_paddle();
paddlesmall_pan.flags = 0;
}
}
else if (itemhilfe = 4) // if itemhilfe becomes 4, create double ball item
{
doubleball_pan.flags = SHOW;
doubleball_pan.pos_x += 4*time_step;
doubleball_pan.pos_y += -2*time_step;
if ((doubleball_pan.pos_x >= 931) | (doubleball_pan.pos_y >= 664))
{
doubleball_pan.flags = 0;
}
}
wait(1);
}
}
Now I included this function in the function which gets called when the game starts:
function start_singleplayer()
{
wait (1);
mouse_mode = 0;
bg_pan.flags = SHOW; //set the flags of the background panel to SHOW
main_pan.flags = SHOW; //set the flags of the playing field panel to SHOW
left_pan.flags = SHOW | OVERLAY; //set the left paddle panel to SHOW and OVERLAY
right_pan.flags = SHOW | OVERLAY; //set the right paddle panel to SHOW and OVERLAY
ball_pan.flags = SHOW | OVERLAY; //set the ball panel to SHOW and OVERLAY
wait (1);
randomize();
ball_speed.x = 3 - 6 * (random(6) % 2); // -3 or 3, the direction in which the ball moves when the game starts
ball_speed.y = 3 - random(6); // -3...3, random vertical speed of the ball at the start of the game
wait(20);
items(); // create the items
while ((spielstand_rechts != 15) && (spielstand_links != 15)) // as long as the score of the left or right player has not reached 15
{
if (key_esc) { sys_exit(NULL);
}
// up or down for controlling the right paddle
if (key_cuu || key_cud) mode_right = USER;
// update the ball and both paddles
update_ball();
update_paddle(left_pan.pos_y,mode_left,key_s-key_w);
update_paddle(right_pan.pos_y,mode_right,key_cud-key_cuu);
// if the variable "big_use" is set to 1 (big paddle is active), use it to control the player
if (big_use = 1)
{
update_paddle(right_panbig.pos_y,mode_right,key_cud-key_cuu);
}
// if the variable "small_use" is set to 1 (small paddle is active), use it to control the player
if (small_use = 1)
{
update_paddle(right_pansmall.pos_y,mode_right,key_cud-key_cuu);
}
video_window(NULL,NULL,0,sTitle);
wait (1);
}
// if the score of the left or right player reached 15, shut down the game
if ((spielstand_rechts == 15) || (spielstand_links == 15))
{
sys_exit(NULL);
}
}
And those two function are used to create a big/small paddle:
function big_paddle()
{
snd_play (click_wav, 20, 0);
big_use = 1; // set the variable "big_use" to 1, which means that the big paddle is used
right_pan.flags = 0; // hide the old paddle
right_panbig.flags = SHOW | OVERLAY; // show the bigger paddle
wait(-30); // wait 30 seconds
big_use = 0; // set all panels and variables to the normal condition ('cause big paddle is not used anymore)
right_pan.flags = SHOW | OVERLAY; // show the old paddle again
right_panbig.flags = 0; // hide the bigger paddle
}
function small_paddle()
{
snd_play (click_wav, 20, 0);
small_use = 1; // set the variable "small_use" to 1, which means that the small paddle is used
right_pan.flags = 0; // hide the old paddle
right_pansmall.flags = SHOW | OVERLAY; // show the smaller paddle
wait(-30); // wait 30 seconds
small_use = 0; // set all panels and variables to the normal condition ('cause big paddle is not used anymore)
right_pan.flags = SHOW | OVERLAY; // show the old paddle again
right_pansmall.flags = 0; // hide the bigger paddle
}
If I now start the game, an item appears - But just one time - I want, that the items appear every 1 minute (randomly chosen now!), plus it's everytime just the bigger paddle item...
Could anyone help me please? I hope you understand my problem =)
Greetz, Minamato
PS: all the names of the variables and function are german, sorry about that - but I translated the commentaries to English
