مهمان
5 شنبه 22 تير 1385 - 09:41 |
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سلام دوستان
در زیر قسمت دوم سوال و جواب مطرح شده در مجلات گوناگون AUM را مشاهده می فرمائید .
امیدوارم که برخی از سوالات شما عزیزان در این متن پاسخ داده شده باشد.
در ضمن علی آقا ! خیلی لطف دارید . من هم امیدوارم که این مطالب به درد بچه ها بخوره . البته اینرا هم مد نظر داشته باش که من و شما زمانی تشنه وار به دنبال چنین منابعی بودیم و مطمنا" حالا هم کسانی هستند که دنبال چنین مطالبی میگردند .
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Q: I enjoyed the "elevators for skyscrapers" code from Aum36. Can I use the keys on the keyboard to go to a certain floor? "1" would take me to the first floor, "2" would take me to the second floor, and so on.
A: Use the modified version of the script:
var video_mode = 7; // 800x600 pixels
var video_depth = 16; // 16 bit mode
var floor1 = 39; // heights (in quants) for the 3 floors
var floor2 = 520;
var floor3 = 1032;
var goto_floor = 0;
var ready_for_clicks = 1; // enables (1) / disables (0) the elevator buttons
/////////////////////////////////////////////////////////////////////////////////
bmap pointer_pcx = <pointer.pcx>;
/////////////////////////////////////////////////////////////////////////////////
string elevator_wmb = <elevator.wmb>;
/////////////////////////////////////////////////////////////////////////////////
sound beep_sound = <beep.wav>;
/////////////////////////////////////////////////////////////////////////////////
function toggle_crosshair();
function button_clicked();
/////////////////////////////////////////////////////////////////////////////////
entity* my_elevator;
entity* button_red;
entity* button_green;
entity* button_blue;
/////////////////////////////////////////////////////////////////////////////////
function main()
{
on_d = null; // disable the debug panel for A5
level_load (elevator_wmb);
mouse_map = pointer_pcx;
mouse_mode = 0; // hide the pointer at game start
while (1)
{
mouse_pos.x = pointer.x;
mouse_pos.y = pointer.y;
wait (1);
}
}
function toggle_crosshair()
{
mouse_mode = (mouse_mode == 0) * 2; // mouse_mode = 0 or 2
}
action player1
{
proc_late();
player = my;
my.invisible = on; // hide the player model
while (1)
{
vec_set (camera.pos, my.pos);
camera.z += 50;
camera.pan = my.pan;
camera.tilt += 10 * mouse_force.y * time;
my.pan -= 20 * mouse_force.x * time;
vec_set (temp, my.x);
temp.z -= 3000;
trace_mode = ignore_me + ignore_passable + use_box;
temp.z = -trace (my.x, temp); // trace 3000 quants below player's feet
temp.x = 10 * (key_w - key_s) * time * ready_for_clicks;
temp.y = 8 * (key_a - key_d) * time * ready_for_clicks;
ent_move (temp, nullvector);
wait (1);
}
}
action elevator
{
proc_late();
my_elevator = my;
my.z = floor1; // stay out of trouble (Wed can drag you towards the dark side...)
}
action button
{
my.light = on;
my.lightrange = 0;
my.unlit = on;
my.ambient = -100;
if (my.skill1 == 1)
{
button_red = my;
my.lightred = 255;
my.lightgreen = 0;
my.lightblue = 0;
goto_floor = 1;
}
if (my.skill1 == 2)
{
button_green = my;
my.lightred = 0;
my.lightgreen = 255;
my.lightblue = 0;
goto_floor = 2;
}
if (my.skill1 == 3)
{
button_blue = my;
my.lightred = 0;
my.lightgreen = 0;
my.lightblue = 255;
goto_floor = 3;
}
my.enable_click = on;
my.event = button_clicked;
}
function button_clicked()
{
if (ready_for_clicks == 0) {return;} // don't allow multiple clicks while the elevator is moving
ready_for_clicks = 0; // don't register button clicks for now
if (goto_floor == 1) // pressed the red (1st floor) button?
{
if (my_elevator.z == floor1) // if the elevator is at the first floor already
{
ready_for_clicks = 1; // enable clicking again
return; // do nothing
}
if ((my_elevator.z == floor2) || (my_elevator.z == floor3)) // if the elevator is at the second or third floor
{
while (my_elevator.z > floor1)
{
my_elevator.z -= 5 * time;
player.z = my_elevator.z + 48; // 48 = experimental value, depends on the height of the model
button_red.z = my_elevator.z + 81; // experimental values
button_green.z = my_elevator.z + 105;
button_blue.z = my_elevator.z + 129;
wait (1);
}
}
my_elevator.z = floor1;
}
if (goto_floor == 2) // pressed the green (2nd floor) button?
{
if (my_elevator.z == floor2) // if the elevator is at the second floor already
{
ready_for_clicks = 1; // enable clicking again
return; // do nothing
}
if (my_elevator.z == floor1) // if the elevator is at the first floor
{
while (my_elevator.z < floor2)
{
my_elevator.z += 5 * time;
player.z = my_elevator.z + 48; // 48 = experimental value, depends on the height of the model
button_red.z = my_elevator.z + 81;
button_green.z = my_elevator.z + 105;
button_blue.z = my_elevator.z + 129;
wait (1);
}
}
if (my_elevator.z == floor3) // if the elevator is at the third floor
{
while (my_elevator.z > floor2)
{
my_elevator.z -= 5 * time;
player.z = my_elevator.z + 48; // 48 = experimental value, depends on the height of the model
button_red.z = my_elevator.z + 81;
button_green.z = my_elevator.z + 105;
button_blue.z = my_elevator.z + 129;
wait (1);
}
}
my_elevator.z = floor2;
}
if (goto_floor == 3) // pressed the blue (3rd floor) button?
{
if (my_elevator.z == floor3) // if the elevator is at the third floor already
{
ready_for_clicks = 1; // enable clicking again
return; // do nothing
}
if ((my_elevator.z == floor1) || (my_elevator.z == floor2)) // if the elevator is at the first or second floor
{
while (my_elevator.z < floor3)
{
my_elevator.z += 5 * time;
player.z = my_elevator.z + 48; // 48 = experimental value, depends on the height of the model
button_red.z = my_elevator.z + 81;
button_green.z = my_elevator.z + 105;
button_blue.z = my_elevator.z + 129;
wait (1);
}
}
my_elevator.z = floor3;
}
button_red.z = my_elevator.z + 81;
button_green.z = my_elevator.z + 105;
button_blue.z = my_elevator.z + 129;
ready_for_clicks = 1;
}
on_mouse_right = toggle_crosshair;
function go_floor1()
{
goto_floor = 1;
button_clicked(); // call the event function
}
function go_floor2()
{
goto_floor = 2;
button_clicked(); // call the event function
}
function go_floor3()
{
goto_floor = 3;
button_clicked(); // call the event function
}
on_1 = go_floor1;
on_2 = go_floor2;
on_3 = go_floor3;
Q: How can I move objects using the mouse? When you click an object and move it around the object should follow the mouse.
A: Use this example; it allows you to pick up, move and drop objects:
function pick_or_drop()
{
wait (1);
my.skill1 += 1;
if ((my.skill1 % 2) == 1) // clicked the object?
{
while (mouse_left == on) {wait (1);}
while (mouse_left == off) // move the object until the player presses the mouse button again
{
temp.x = pointer.x;
temp.y = pointer.y;
temp.z = 200; // move the object 200 quants below the camera, play with this value
vec_for_screen(temp.x, camera);
my.x = temp.x;
my.y = temp.y;
my.z = temp.z;
wait (1);
}
}
else // drop the object
{
vec_set (temp.x, my.x);
temp.z -= 3000;
trace_mode = ignore_me + ignore_sprites + ignore_models + use_box;
my.z -= trace (my.pos, temp); // place the object on the ground
}
}
action click_and_move
{
my.skill1 = 0;
my.enable_click = on;
my.event = pick_or_drop;
}
Q: How can i have a multi-language game (English / German)?
A: Use the following example:
define english 1;
define german 2;
string displayed_str;
text english_txt // create an array of strings using a text
{
strings = 5;
string = "english text 1";
string = "english text 2";
string = "english text 3";
string = "english text 4";
string = "english text 5";
}
text german_txt // create an array of strings using a text
{
strings = 5;
string = "german text 1";
string = "german text 2";
string = "german text 3";
string = "german text 4";
string = "german text 5";
}
text displayed_txt
{
pos_x = 300;
pos_y = 100;
string = displayed_str;
}
function display_text(line_number, language)
{
if (language == english)
{
str_cpy (displayed_str, english_txt.string[line_number]); // set the proper English string
}
if (language == german)
{
str_cpy (displayed_str, german_txt.string[line_number]); // set the proper German string
}
displayed_txt.visible = on; // show the text
sleep (5); // for 5 seconds
displayed_txt.visible = off;
}
// display_text (0, english) will display "english text 1"
// display_text (3, german) will display "german text 4"
Q: How can I create a simple 3D side scrolling player and camera snippet?
A: Use the following snippet as a base:
// this action is set up for a player that's traveling from left to right in Wed's top view
action player_side_scroll
{
var walk_percentage;
while (1)
{
c_move (my, vector((key_cul - key_cur) * 2 * time, 0, 0), nullvector, glide);
if (key_cur + key_cul != 0)
{
ent_animate(my, "walk", walk_percentage, anm_cycle);
walk_percentage += 3 * (key_cul - key_cur) * time; // 3 = "walk" animation speed
}
else
{
ent_animate(my, "stand", walk_percentage, anm_cycle);
walk_percentage += 2 * time;
}
camera.x = my.x;
camera.y = my.y + 300; // might need changes depending on your level setup
camera.z = my.z;
camera.pan = my.pan - 90;
wait (1);
}
}
Q: I'd like to know how to set the frame rate directly. I tried setting fps_max at 60 but I was getting 56 fps. If I set the fps_max at 70, it was running at 66.7 or so. Classic games, like Sonic and Mario, run at 60 fps and the frame rate is kept as is. It's either I run at 56 (too slow and a little jerky at times) or 67 (too fast). How do I set the fps at exactly 60?
A: Fps_max allows you to set an approximate (maximum) value for the frame rate; however, you can use a small script to do the fine tuning. Please remember that the frame rate won't be exactly the same on other computers because of their different video cards.
// use "1" and "Q" to set fps_max, and then use the "real" fps_max value in your script
var fpsec;
var init_frames;
text info_txt
{
layer = 20;
pos_x = 60;
pos_y = 0;
string = "fps_max real frame rate";
flags = visible;
}
panel framerate_pan
{
pos_x = 50;
pos_y = 20;
layer = 15;
digits = 20, 0, 4, _a4font, 1, fps_max;
digits = 150, 0, 4, _a4font, 1, fpsec;
flags = overlay, refresh, visible;
}
starter set_fpsmax()
{
while (1)
{
if (key_1 == on)
{
fps_max += 5 * time;
}
if (key_q == on)
{
fps_max -= 5 * time;
}
init_frames = total_frames;
sleep (1);
fpsec = total_frames - init_frames;
wait (1);
}
}
Q: I'd like to have a switch that turns on / off a light; more than that, it should pop up a text when the player is touching it with the mouse. Is this possible?
A: Sure.
text light_txt
{
layer = 2;
pos_x = 300;
pos_y = 275;
string = "That's a light switch!";
}
function light_on_off()
{
my.skill1 += 1;
if ((my.skill1 % 2) == 1)
{
my.lightrange = 500;
}
else
{
my.lightrange = 0;
}
}
action light_source // attach it to the light source
{
my.skill1 = 0;
my.red = 255;
my.green = 255;
my.blue = 200;
my.enable_scan = on;
my.event = light_on_off;
}
function switch_event()
{
if (event_type == event_click)
{
wait (1);
temp.x = 360; // horizontal scanning angle
temp.y = 180; // vertical scanning angle
temp.z = 1000; // scanning range = 1000 quants
scan_entity (my.x, temp);
}
else // touched with the mouse?
{
light_txt.visible = on; // display the text for 5 seconds
sleep (5);
light_txt.visible = off;
}
}
action light_switch // attach it to the switch
{
my.enable_click = on;
my.enable_touch = on;
my.event = switch_event;
}
Q: I want to place a panel on the screen (2d coordinates) exactly over a special 3d position. How can I do that?
A: Use the following example:
bmap my_pcx = <my.pcx>;
panel my_pan
{
bmap = my_pcx;
layer = 15;
flags = overlay, refresh, visible;
}
function highlight_me()
{
var temporary;
while (1)
{
vec_set (temporary, my.x);
vec_to_screen (temporary, camera);
my_pan.pos_x = temporary.x;
my_pan.pos_y = temporary.y;
wait (1);
}
}
action my_entity
{
highlight_me(); // attach the panel to the entity
// put the rest of the code for your entity here
}
Q: In my game I have a gun model. I don't want a player model but I want the gun to be attached to the screen like in a fps game. Can anybody help me?
A: Use this simple "entity" definition:
entity my_gun
{
type = <microuzi.mdl>; // put the name of your model here
layer = 10;
view = camera;
x = 25; // x, y, z adjust the position of the weapon in relation to the camera
y = -10;
z = -10;
flags = visible;
}
Q: Has anyone tried to run the engine in a frame? I can see how it would be done using panels, overlaying the areas you don't want showing - but isn't that a waste of resources?
A: You don't have to hide the areas that don't need to be displayed - create a smaller engine window and place it where you want it like this:
// make sure that big.pcx has a black (rbg = 000) cutout that has the same size with the small camera
bmap big_pcx = <big.pcx>;
panel big_pan // that's a 640x480 pixels bitmap
{
bmap = big_pcx;
layer = 15;
flags = overlay, refresh, visible;
}
view small_camera
{
layer = 20; // appears over big_pan
pos_x = 63; // pos_x and pos_y give the position of the view
pos_y = 188;
size_x = 116; // size_x and size_y give its size
size_y = 160;
flags = visible;
}
starter action_camera()
{
camera.visible = off; // hide the big, predefined camera
while (player == null) {wait (1);}
while (1)
{
small_camera.x = player.x; // show the player on the small camera
small_camera.y = player.y;
small_camera.z = player.z + 200;
small_camera.pan = player.pan;
small_camera.tilt = -90;
wait (1);
}
}
Q: Can I display the engine version on the screen? I am a beta tester and I'm not sure what version I'm running at a certain moment.
A: Use this example:
string version_str;
string engine_str;
text version_txt
{
layer = 5;
pos_x = 30;
pos_y = 25;
string = engine_str;
}
starter display_version()
{
sleep (5); // wait until the level is loaded, the splash screen is displayed, and so on
str_for_num(version_str, version);
str_cpy(engine_str, "Starting Acknex v");
str_cat(engine_str, version_str);
version_txt.visible = on; // show the engine version for 5 seconds
sleep (5);
version_txt.visible = off;
}
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