I tried all the ways i found and none work please help.
I want the player to attack while moving its that simple but i cant do it for some reason. I'm new to Game Maker Language!
Create a sprite(like a dragon)
create 4 layers of that sprite(1: Stable dragon, 2: Dragon charging breath + ready to flap, 3: dragon firing + flapping, 4: dragon fired + flapped)
create an object for that sprite
create a create event and drag code
use these: image_index = 0; image_speed = 0; + in movement; gravity event( angle -90, power : 1)
Create a global left click event and use this code :
if(image_index == 0){image_speed = .3; "create a fireball etc" vspeed = 10; hspeed = 10; }
Create a Animation End event in other and use these :
image_index = 0; image_speed = 0;
this is an easy way to make a dragon which moves like a flappy bird while shooting fireballs. You can sample this to create a moving object who shoots.
Related
I am coding a game on game maker studio in which I want a number of enemies to be spawned randomly on my grid every time the game is run. However, I am only getting one enemy on my map each time I run it.
Below is the Create instance for my enemy object.
x_speed_ = 0;
y_speed_ = 0;
max_speed_ = 1.5;
move_speed = 1;
acceleration_ = .3;
path_start(follow_path, move_speed, continue_path, true);
Also, this is the code in the Create instance for the level that is used to place the enemies on my grid.
for(var n = 1; n < 8; n++) {
i = irandom_range(1, grid_width-2);
j = irandom_range(1, grid_height-2);
instance_create_layer(i, j, "Instances", object_enemy);
}
Can anyone spot the reason why I'm not getting multiple enemies in my level?
I can think of 2 possible scenarios in the given context:
the "Level" object is not placed in the room, so it doesn't run the said code.
the randomiser fails to be random, so it spawns 8 enemies on the exact same location.
This seems like a really simple question but I've been at this for a couple of hours and need an outsiders perspective.
I'm migrating a start of a game to Godot from Unity.
I'm selecting an area of tiles (startDragPosition, endDragPosition, both Vector2 objects) from a TileMap and setting them to a certain tile. Currently the dragging only works if the direction is top->bottom and left->right, so if the ending x and y are larger than the starting x and y
In Unity(C#) I had a few simple lines to flip the rectangle values if it was dragged in reverse.
if (end_x < start_x) {
int tmp = end_x;
end_x = start_x;
start_x = tmp;
}
if (end_y < start_y) {
int tmp = end_y;
end_y = start_y;
start_y = tmp;
}
However in when I try a similar approach in Godot it is not working for some reason. I'm thinking that I'm messing up somewhere earlier and any help would be appreciated. If there is an easier way of doing this please tell me I'm fairly new to Godot itself.
Here is the function responsible for dragging in my Godot script(GD)
func Drag():
if(Input.is_action_just_pressed("click")):
startDragPosition=get_global_mouse_position()
if(Input.is_action_pressed("click")):
endDragPosition=get_global_mouse_position()
print("01 START: "+String(stepify(startDragPosition.x-8,16)/16)+"_"+String(stepify(startDragPosition.y-8,16)/16))
print("01 END: "+String(stepify(endDragPosition.x-8,16)/16)+"_"+String(stepify(endDragPosition.y-8,16)/16))
if(endDragPosition.x<startDragPosition.x):
var temp = endDragPosition.x
endDragPosition.x=startDragPosition.x
startDragPosition.x=temp
if(endDragPosition.y<startDragPosition.y):
var temp = endDragPosition.y
endDragPosition.y=startDragPosition.y
startDragPosition.y=temp
for x in range(startDragPosition.x,endDragPosition.x):
for y in range(startDragPosition.y,endDragPosition.y):
get_node("../DragPreview").set_cell((stepify(x-8,16))/16,(stepify(y-8,16))/16,0)
#get_node("../DragPreview").update_bitmask_area(Vector2((stepify(x-8,16))/16,(stepify(y-8,16))/16))
if(Input.is_action_just_released("click")):
print("START: "+String(stepify(startDragPosition.x-8,16)/16)+"_"+String(stepify(startDragPosition.y-8,16)/16))
print("END: "+String(stepify(endDragPosition.x-8,16)/16)+"_"+String(stepify(endDragPosition.y-8,16)/16))
startDragPosition=null
endDragPosition=null
When you drag, you always write to endDragPosition.
When you drag to the left or drag up, and you update endDragPosition, it will have smaller coordinates than it had before. Because of that you swap the coordinates with startDragPosition… And then you keep dragging left or up, and that updates endDragPosition again. The original startDragPosition is lost.
Either you work with a copy when you are deciding the start and end:
var start = startDragPosition
var end = endDragPosition
if(end.x<start.x):
var temp = end.x
end.x=start.x
start.x=temp
if(end.y<start.y):
var temp = end.y
end.y=start.y
start.y=temp
for x in range(start.x,end.x):
for y in range(start.y,end.y):
# whatever
pass
Or you forget this swapping shenanigans, and give the loops a step:
var start = startDragPosition
var end = endDragPosition
for x in range(start.x,end.x,sign(end.x-start.x)):
for y in range(start.y,end.y,sign(end.y-start.y)):
# whatever
pass
I am newbie in programming so I need help with my Ultrasonic sensor driven NXT robot.
It is attached to motor(A) and I'd like it to scan the room from robot's centerline to 90° left and 90° right in 30° increments (seven measurements total), store the data to an array and based on largest distance point my robot in the direction that measurement was taken to avoid obsticles.
Is this possible at all? Or is there some better solution?
Any advice or suggestion is more than welcome.
This would work somewhat for avoiding obstacles, as for implementing it, it depends what you are programming the robot in. I only know lejos(java), in which a function for getting the angle to go would be something like:
public static int scanArea(RegulatedMotor motorTop, UltrasonicSensor sonar) {
int theAngle = 0;
int largestDist = 0;
int currentDist;
for (int rotateAngle = -90; rotateAngle <= 90; rotateAngle += 30) {
motorTop.rotateTo(rotateAngle);
currentDist = sonar.getDistance();
if (currentDist > largestDist) {
largestDist = currentDist;
theAngle = rotateAngle;
}
Delay.msDelay(25);
}
motorTop.rotateTo(0);
return theAngle;
}
If you're coding the robot in any code based language that should be fairly easy to convert (assuming you have functions such as rotateTo, otherwise you would have to use relative movements). Otherwise I don't know how easy this would be to do in the graphical programming language that you use originally.
I would suggest attaching the ultrasonic sensor to a 180° servo that is vertical. You can take a measurement at a specific degree by assigning that degree to the servo. Using this:
int largestDistance = 0;
int Angle =0;
for (int servovalue = 0; servovalue <= 255; rotateAngle += 30){
Servo[servo1] = servovalue;
if (SensorValue[Sonar] > largestDist) {
largestDist = SensorValue[Sonar];
Angle = servovalue;
}
}
return Angle;
}
It assumes that servo1 is your vertical servo, but this should work if your programming in RobotC.
I am totally new at this whole programming thing, and I really need help. So basically, I'm trying to make a healthbar that will increase or decrease depending on what button is clicked. I made a healthbar movieclip with 101 frames (I included zero) and put this in the actionscript layer of the movieclip:
var health:Number = 0;
if(health == 0)
{
gotoAndStop("1")
}
if(health == 1)
{
gotoAndStop("2")
}
if(health == 2)
{
gotoAndStop("3")
}
and on and on like so. Basically, on the stage itself, I have a button called fortyfiveup_btn that is commanded to do this:
var health:Number = 0;
fortyfiveup_btn.addEventListener(MouseEvent.CLICK, fortyfiveupClick);
function fortyfiveupClick(event:MouseEvent):void{
health = health+45
}
I quickly realized that both health variables, the one for the button and the one for the healthbar will not interact. How can I make it so if the button is clicked, the health goes to the relevant frame or percentage?
Thanks for any answers, and I appreciate all the help I can get :)
If the answer == yes to my comment you should do this:
You need to give the movieclip an instancename (perhaps lifebar) and from stage you can access the health inside the "lifebar" with lifebar.health.
So you need this inside your stage:
//You can delete the var health:Number = 0;
fortyfiveup_btn.addEventListener(MouseEvent.CLICK, fortyfiveupClick);
function fortyfiveupClick(event:MouseEvent):void{
//You can write this, too: lifebar.health += 45;
lifebar.health = lifebar.health+45;
}
You can even optimize your lifebar script, don't use 101 times the if(health == x) you can use this, too:
gotoAndStop(health + 1);
(I think this is inside an ENTER_FRAME event?)
EDIT:
Some error countermeasures:
//Don't let health decrease below 0
if(health < 0) health = 0;
//And don't above 100
else if(health > 100) health = 100;
gotoAndStop(health + 1);
Use int instead of Number when you don't use decimal numbers and uint when you don't use negative integers (this bugs when the number can drop under 0, so for your health we take int):
health:int = 0;
I'm new to actionscript. What I'm tryin to do is simulate traffic flow near a 2 lane intersection, following Wolfram's rule 184. To begin with, I'm trying to create a grid (8x8 of which the intersection is between the middle two rows and the middle two columns, like a plus sign) whose cells have the following attributes:
color = white;
car = false;
when clicked:
color = red;
car = true (a car is present);
So, after the user clicks cells to position the cars initially and presses the start button, the simulation will begin.
Here's my code so far (apologies for incorrect formatting):
class Main
{
private var parent:MovieClip;
public static function main(mc:MovieClip)
{
var app = new Main(mc);
}
public function Main(mc:MovieClip)
{
this.parent = mc;
//grid settings
var Cell:MovieClip = mc.createEmptyMovieClip("cell", mc.getNextHighestDepth());
var x:Number = 0;
var y:Number = 0;
var color:Number = 0xffffff;
var car:Boolean = false;
for (y = 0; y < 3 * Stage.height / 8; y += Stage.height / 8)
{
for (x = 3*Stage.width/8; x < 5*Stage.width/8; x+=Stage.width/8)
{
UI.drawRect(Cell, x, y, (Stage.width / 8) - 5, (Stage.height / 8) - 5, color, 100);
}
}
for (y = 3*Stage.height/8; y < 5 * Stage.height / 8; y += Stage.height / 8)
{
for (x = 0; x < Stage.width; x+=Stage.width/8)
{
UI.drawRect(Cell, x, y, (Stage.width / 8)-5, (Stage.height / 8)-5, color, 100);
}
}
for (y = 5*Stage.height/8; y < Stage.height; y += Stage.height / 8)
{
for (x = 3*Stage.width/8; x < 5*Stage.width/8; x+=Stage.width/8)
{
UI.drawRect(Cell, x, y, (Stage.width / 8)-5, (Stage.height / 8)-5, color, 100);
}
}
Cell.onMouseDown()
{
Cell.color = UI.RED;
Cell.car = true;
}
}
}
I know there's quite a few things gone wrong here. First of all, the cell color doesn't change on mouse down. Do i need to make movie clip for each cell in the for loops? I think it would be easier to make a grid of objects with given attributes, but i don't know how to do that. Would really appreciate if someone helps me out.
From what I can tell, issue with your current approach is that using drawRect() literally draws pixels on to the stage, which means you'll have no reference to those shapes in future frames. right now, you've got one MovieClip that has been drawn many times. What you need is a lot of MovieClips so you have a reference to each cell that you can update/edit every frame.
Your best bet is to do the following (I'll just provide pseudo because I'm a bit shaky on AS2 syntax):
A) Create an array to hold all of the Cells. Call it:
var Cells:Array = new Array();
B) During each step of the loops in your constructor, do 4 things.
1) Create a new MovieClip `var tempCell:MovieClip = new MovieClip();
2) Draw a rectangle on to each MovieClip: A tutorial for the graphics API in AS2 http://www.actionscript.org/resources/articles/727/1/Drawing-shapes-with-AS2/Page1.html
3) Add an event listenerto each MovieClip that points to a common event handler. This listener listens for mouse clicks on that MovieClip (or MOUSE_DOWN)
4) and use Cells.push(tempClip) to add that new MovieClip to your array so you now have one object that contains a reference to all of your cells.
C) Create an click event handler that redraws the cell that has been clicked. Try MouseEvent.target
You have another option to using the graphics API to draw rectangles, and that is to simply add and remove stock graphics from your Flash library. You'll have to draw these graphics in Flash and then 'Export for Actionscript' to call them up.
Hope this points you in the right direction!
J