// Sliding door LSL script #3
// Handles the touch event.
// Handles the collision event.
// Handles closing the door automatically via a timer event.

float  delay = 3.0;                         // time to wait before 
                                            // automatically closing door
                                           
vector delta = <1.0, 0.0, 0.0>;             // amount to move door 
                                            // when we open it

vector closed_position;                     // original position of the 
                                            // door when closed

// Processing for the script when it first starts up

default {
    // What we do when we first enter this state

    state_entry() {
        closed_position = llGetPos();       // Save position when door is closed
        state closed;                       // Move to the closed state
    }
}

// Processing for the script when it is in the closed state

state closed {
    // What we do when we first enter this state

    state_entry() {
        llSetPos(closed_position);          // Move door to closed position
    }

    // What we do when the door is clicked ("touched") with the mouse

    touch_start(integer total_number) {
        state open;                         // Move to the open state
    }

    // What to do when something hits the door 

    collision_start(integer total_number)
    {
        state open;                         // Move to the open state
    }

    // What to do when the timer goes off

    timer()
    {
        llSetTimerEvent(0.0);               // Set the timer to 0.0 to turn it off
    }
}

// Processing for the script when it is in the open state

state open {
    // What we do when we first enter this state

    state_entry() {
        llSetPos(closed_position + delta);  // Move door to open position
        llSetTimerEvent(delay);             // Set the timer to automatically close it
    }

    // What we do when the door is clicked ("touched") with the mouse

    touch_start(integer total_number) {
        state closed;                       // Move to the closed state
    }

    // What to do when something hits the door 

    collision_start(integer total_number)
    {
        // Do nothing, the door is already open
    }

    // What to do when the timer goes off

    timer()
    {
        llSetTimerEvent(0.0);               // Set the timer to 0.0 to turn it off
        state closed;                       // Move to the closed state
    }
}