snake like manifold logic
17 September 2016 00:35
Hy blend4web heads!
I'm back in my calback adventures !
I am using manfold sensor inspired by petigor tutorials to control a cube.
after that i added a js callback in a node setup to get a function called every second. Because the snake only moves or chanes direction every Xmillisecond
So… I wonder if i could use the JSCALLBACK to trigger a sensor, a pulse or something so that it could help trigger the movement only when the JSCALLBACK has been called. I would prefer not to use a global variable.
Is you want more precision please ask. I am a bit confused and not sure how to explain expose my question![]( "weary")
I'm back in my calback adventures !
I am using manfold sensor inspired by petigor tutorials to control a cube.
function setup_direction(){
var head = m_scenes.get_object_by_name("Cube");
var key_up = m_ctl.create_keyboard_sensor(m_ctl.KEY_T);
var key_down = m_ctl.create_keyboard_sensor(m_ctl.KEY_G);
var key_right = m_ctl.create_keyboard_sensor(m_ctl.KEY_H);
var key_left = m_ctl.create_keyboard_sensor(m_ctl.KEY_F);
var direction_array = [
key_up, key_down, key_right, key_left
];
var up_logic = function(s){return (s[0])};
var down_logic = function(s){return (s[1])};
var right_logic = function(s){return (s[2])};
var left_logic = function(s){return (s[3])};
function moveHead_cb(obj, id, pulse, param){
if (pulse == 1){
console.log(id, param);
var head_pos = m_trans.get_translation(obj);
console.log(head_pos);
head_pos[param[0]] += param[1];
console.log(head_pos);
m_trans.set_translation(obj, head_pos[0], head_pos[1], head_pos[2]);
}
else{
console.log("no pulse");
}
};
m_ctl.create_sensor_manifold(head, "UP", m_ctl.CT_TRIGGER,
direction_array, up_logic, moveHead_cb, [2,-1]);
m_ctl.create_sensor_manifold(head, "DOWN", m_ctl.CT_TRIGGER,
direction_array, down_logic, moveHead_cb, [2,1]);
m_ctl.create_sensor_manifold(head, "RIGHT", m_ctl.CT_TRIGGER,
direction_array, right_logic, moveHead_cb, [0,1]);
m_ctl.create_sensor_manifold(head, "LEFT", m_ctl.CT_TRIGGER,
direction_array, left_logic, moveHead_cb, [0,-1]);
}
});
after that i added a js callback in a node setup to get a function called every second. Because the snake only moves or chanes direction every Xmillisecond
function setup_direction(){
m_logic_nodes.append_custom_callback("SNAKEMOVE", snakemove);
var head = m_scenes.get_object_by_name("Cube");
var direction = []
var key_up = m_ctl.create_keyboard_sensor(m_ctl.KEY_T);
var key_down = m_ctl.create_keyboard_sensor(m_ctl.KEY_G);
var key_right = m_ctl.create_keyboard_sensor(m_ctl.KEY_H);
var key_left = m_ctl.create_keyboard_sensor(m_ctl.KEY_F);
var direction_array = [
key_up, key_down, key_right, key_left
];
var up_logic = function(s){return (s[0])};
var down_logic = function(s){return (s[1])};
var right_logic = function(s){return (s[2])};
var left_logic = function(s){return (s[3])};
function moveHead_cb(obj, id, pulse, param){
if (pulse == 1){
console.log(id, param);
var head_pos = m_trans.get_translation(obj);
console.log(head_pos);
head_pos[param[0]] += param[1];
console.log(head_pos);
m_trans.set_translation(obj, head_pos[0], head_pos[1], head_pos[2]);
}
else{
console.log("no pulse");
}
};
function setDirection_cb(obj, id, pulse, param){
//getdirection = getdirection();
console.log(param)//, getdirection);
}
// function getdirection(){
// return true;
// }
m_ctl.create_sensor_manifold(head, "UP", m_ctl.CT_TRIGGER,
direction_array, up_logic, setDirection_cb, [2,-1]);
m_ctl.create_sensor_manifold(head, "DOWN", m_ctl.CT_TRIGGER,
direction_array, down_logic, setDirection_cb, [2,1]);
m_ctl.create_sensor_manifold(head, "RIGHT", m_ctl.CT_TRIGGER,
direction_array, right_logic, setDirection_cb, [0,1]);
m_ctl.create_sensor_manifold(head, "LEFT", m_ctl.CT_TRIGGER,
direction_array, left_logic, setDirection_cb, [0,-1]);
function snakemove() {
console.log("move");
}
}
});
So… I wonder if i could use the JSCALLBACK to trigger a sensor, a pulse or something so that it could help trigger the movement only when the JSCALLBACK has been called. I would prefer not to use a global variable.
Is you want more precision please ask. I am a bit confused and not sure how to explain expose my question
21 September 2016 11:34
Can the JS callback be used as a pulse ?
I mean that i have this function called every second i would like it to be part of the mannifold logic to stay in the B4W programming style.
I have this delay function in the logic nodes that triggers a JS callback. I think i want to use that function as a promie for the logic part of the manifold logic. That way the movement could be triggered only every second. Snake stlyle.
I mean that i have this function called every second i would like it to be part of the mannifold logic to stay in the B4W programming style.
I have this delay function in the logic nodes that triggers a JS callback. I think i want to use that function as a promie for the logic part of the manifold logic. That way the movement could be triggered only every second. Snake stlyle.
21 September 2016 18:22
I have this delay function in the logic nodes that triggers a JS callback. I think i want to use that function as a promie for the logic part of the manifold logic. That way the movement could be triggered only every second. Snake stlyle.Hello!
Sorry for the delay!
I think that JS_Callback is not a good solution for your task, at least not the optimal one.
We'll dig a little into your question and will give some advice
04 October 2016 14:18
I have this delay function in the logic nodes that triggers a JS callback. I think i want to use that function as a promie for the logic part of the manifold logic. That way the movement could be triggered only every second. Snake stlyle.Hello!
Sorry for such a long delay (we were hard working on the latest release stuff)!
So again I think that JS_Callback is not suitable for your task. You can easily perform per second translation with the help of m_time.set_timeout method and global variable.
Something like this:
// global vars
var _is_moving = false;
...
function moveHead_cb(obj, id, pulse, param){
if (pulse == 1){
// to prevent accumulation of translation
if (!_is_moving)
per_second_translation(obj, param);
}
else{
console.log("Key unpressed");
}
...
function per_second_translation(obj, param) {
_is_moving = true;
m_time.set_timeout(function() {
// console.log(id, param);
var head_pos = m_trans.get_translation(obj);
// console.log(head_pos);
head_pos[param[0]] += param[1];
// console.log(head_pos);
m_trans.set_translation(obj, head_pos[0], head_pos[1], head_pos[2]);
_is_moving = false;
}
, 1000);
}
Besides you should use m_ctl.CT_CONTINUOUS manifold control type.
I've attached a simple example project
23 October 2016 17:08
OK perfect !![]( "smiling")
Thank you very much. I just have to change the logic so that if i press ones on a key the cube will continue to move in that direction every second. In snake the fact that you never stop is crucial to make the game interesting !![]( "winking")
Thank you very much. I just have to change the logic so that if i press ones on a key the cube will continue to move in that direction every second. In snake the fact that you never stop is crucial to make the game interesting !