/* =====================================================================
* Periodically recalculate some submarine parameters, with a larger delay
* =====================================================================*/
static gboolean update_timeout_slow() {
gdouble delta_assiette;
if(!boardRootItem)
return FALSE;
if(board_paused)
return TRUE;
/* speed : don't reach instantly the ordered speed */
if (speed_ordered != submarine_horizontal_speed) {
submarine_horizontal_speed += (speed_ordered-submarine_horizontal_speed)/10.0;
if (fabs(speed_ordered - submarine_horizontal_speed) < 0.1)
submarine_horizontal_speed = speed_ordered;
}
/* assiette */
delta_assiette = (ballast_ar_air - ballast_av_air)/200.0 +
(barre_av_angle - barre_ar_angle)/5.0*submarine_horizontal_speed;
assiette -= delta_assiette*UPDATE_DELAY/10000.0;
if (assiette < -30.0)
assiette = -30.0;
if (assiette > 30.0)
assiette = 30.0;
/* If surfacing, diminish the 'assiette' */
if ( depth <= 5.0 + SURFACE_DEPTH) {
assiette *= depth/(depth+1.0);
}
/* update some dynamic parameters */
/* resulting_weight > 0 ==> the sub goes deeper
regleur : this is the qty of water */
resulting_weight = weight - ballast_av_air - ballast_ar_air + regleur;
submarine_vertical_speed = resulting_weight/300.0
+ submarine_horizontal_speed*sin(DEG_TO_RAD(-assiette));
/* if depth rudders are in the same direction */
if (barre_ar_angle != 0.0 && barre_av_angle != 0.0) {
if (fabs(barre_ar_angle)/barre_ar_angle == fabs(barre_av_angle)/barre_av_angle) {
gdouble a = (fabs(barre_ar_angle) > fabs(barre_av_angle)) ? barre_av_angle : barre_ar_angle;
submarine_vertical_speed += a * submarine_horizontal_speed/30.0;
}
}
/* position & depth */
submarine_x += submarine_horizontal_speed
* cos(DEG_TO_RAD(assiette))
* UPDATE_DELAY_SLOW/1000.0;
depth += submarine_vertical_speed * UPDATE_DELAY_SLOW/1000.0;
if (depth < SURFACE_DEPTH)
depth = SURFACE_DEPTH;
if (depth > MAX_DEPTH)
depth = MAX_DEPTH;
// show an alert if some parameters reach the limit
if (depth >= MAX_DEPTH-20.0 || assiette == -30.0
|| assiette == 30.0 || air == 0.0 || battery == 0.0)
g_object_set (alert_submarine,
"visibility", GOO_CANVAS_ITEM_VISIBLE,
NULL);
else
g_object_set (alert_submarine,
"visibility", GOO_CANVAS_ITEM_INVISIBLE,
NULL);
/* if the submarine dives, stop charging air tanks and batteries */
if ( depth >= SURFACE_DEPTH+10.0 ) {
if (air_charging) {
air_charging = FALSE;
gc_item_rotate_with_center(air_compressor_item, 0,
TRIGGER_CENTER_X, TRIGGER_CENTER_Y );
}
if (battery_charging) {
battery_charging = FALSE;
gc_item_rotate_with_center(battery_charger_item, 0,
TRIGGER_CENTER_X, TRIGGER_CENTER_Y );
}
}
/* Check the submarine passed the right door */
if ( submarine_x > WRAP_X && !gamewon )
{
/* Check its within the gate range */
GooCanvasBounds bounds;
goo_canvas_item_get_bounds (submarine_item, &bounds);
guint antena_height = 30;
if(bounds.y1 + antena_height < gate_top_current_y ||
bounds.y2 > gate_bottom_y)
{
/* It's a crash */
submarine_explosion();
}
else
{
gamewon = TRUE;
ok();
}
}
/* Open the door */
if(treasure_captured && gate_top_current_y > gate_top_y)
open_door();
/* display the submarine */
goo_canvas_item_set_simple_transform(submarine_item,
submarine_x - submarine_width/2.0,
depth + SURFACE_DEPTH - submarine_height/2.0,
1, -assiette);
/* the frigate */
if ( frigate_item ) {
/* detects a collision between the frigate and the submarine */
if (depth <= 30.0 && !submarine_destroyed) {
GooCanvasBounds bounds;
goo_canvas_item_get_bounds(frigate_item, &bounds);
gdouble frigate_x = bounds.x1 + (bounds.x2 - bounds.x1) / 2;
if ( abs(submarine_x - frigate_x) < 100 ) {
submarine_explosion();
return TRUE;
}
}
}
/* whale detection */
{
gdouble dist1 = hypot( submarine_x - whale_x, depth - whale_y);
if ( ( dist1 < WHALE_DETECTION_RADIUS ) && !submarine_destroyed ) {
g_object_set (whale, "visibility", GOO_CANVAS_ITEM_INVISIBLE, NULL);
g_object_set (big_explosion, "visibility", GOO_CANVAS_ITEM_VISIBLE, NULL);
submarine_explosion();
return TRUE;
}
}
/* treasure detection */
{
gdouble dist1 = hypot( submarine_x - treasure_x, depth - treasure_y);
if ( (dist1 < TREASURE_DETECTION_RADIUS)
&& !treasure_captured ) {
gc_sound_play_ogg("sounds/tuxok.wav", NULL);
g_object_set (treasure, "visibility", GOO_CANVAS_ITEM_INVISIBLE, NULL);
treasure_captured = TRUE;
open_door();
}
}
return TRUE;
}
/* =====================================================================
* Periodically recalculate some submarine parameters, with a larger delay
* =====================================================================*/
static gboolean update_timeout_slow() {
gdouble delta_assiette;
if(!boardRootItem)
return FALSE;
if(board_paused)
return TRUE;
/* speed : don't reach instantly the ordered speed */
if (speed_ordered != submarine_horizontal_speed) {
submarine_horizontal_speed += (speed_ordered-submarine_horizontal_speed)/10.0;
if (fabs(speed_ordered - submarine_horizontal_speed) < 0.1)
submarine_horizontal_speed = speed_ordered;
}
/* assiette */
delta_assiette = (ballast_ar_air - ballast_av_air)/200.0 +
(barre_av_angle - barre_ar_angle)/5.0*submarine_horizontal_speed;
assiette -= delta_assiette*UPDATE_DELAY/10000.0;
if (assiette < -30.0)
assiette = -30.0;
if (assiette > 30.0)
assiette = 30.0;
/* If surfacing, diminish the 'assiette' */
if ( depth <= 5.0 + SURFACE_DEPTH) {
assiette *= depth/(depth+1.0);
}
/* update some dynamic parameters */
/* resulting_weight > 0 ==> the sub goes deeper
regleur : this is the qty of water */
resulting_weight = weight - ballast_av_air - ballast_ar_air + regleur;
submarine_vertical_speed = resulting_weight/300.0
+ submarine_horizontal_speed*sin(DEG_TO_RAD(-assiette));
/* if depth rudders are in the same direction */
if (barre_ar_angle != 0.0 && barre_av_angle != 0.0) {
if (fabs(barre_ar_angle)/barre_ar_angle == fabs(barre_av_angle)/barre_av_angle) {
gdouble a = (fabs(barre_ar_angle) > fabs(barre_av_angle)) ? barre_av_angle : barre_ar_angle;
submarine_vertical_speed += a * submarine_horizontal_speed/30.0;
}
}
/* position & depth */
submarine_x += submarine_horizontal_speed
* cos(DEG_TO_RAD(assiette))
* UPDATE_DELAY_SLOW/1000.0;
depth += submarine_vertical_speed * UPDATE_DELAY_SLOW/1000.0;
if (depth < SURFACE_DEPTH)
depth = SURFACE_DEPTH;
if (depth > MAX_DEPTH)
depth = MAX_DEPTH;
// show an alert if some parameters reach the limit
if (depth >= MAX_DEPTH-20.0 || assiette == -30.0
|| assiette == 30.0 || air == 0.0 || battery == 0.0)
g_object_set (alert_submarine,
"visibility", GOO_CANVAS_ITEM_VISIBLE,
NULL);
else
g_object_set (alert_submarine,
"visibility", GOO_CANVAS_ITEM_INVISIBLE,
NULL);
/* if the submarine dives, stop charging air tanks and batteries */
if ( depth >= SURFACE_DEPTH+10.0 ) {
if (air_charging) {
air_charging = FALSE;
gc_item_rotate_with_center(air_compressor_item, 0,
TRIGGER_CENTER_X, TRIGGER_CENTER_Y );
}
if (battery_charging) {
battery_charging = FALSE;
gc_item_rotate_with_center(battery_charger_item, 0,
TRIGGER_CENTER_X, TRIGGER_CENTER_Y );
}
}
/* if the submarine is too close from right, put it on the left */
if ( submarine_x > WRAP_X )
{
/* Check its within the gate range */
GooCanvasBounds bounds;
goo_canvas_item_get_bounds (submarine_item, &bounds);
if(bounds.y1 < gate_top_current_y ||
bounds.y2 > gate_bottom_y)
{
/* It's a crash */
submarine_explosion();
}
else
{
gamewon = TRUE;
/* Let the user play indefinitly at level 3 */
if(gcomprisBoard->level<3)
gc_bonus_display(gamewon, GC_BONUS_SMILEY);
else
{
submarine_x = SUBMARINE_INITIAL_X;
depth = SUBMARINE_INITIAL_DEPTH;
}
}
}
/* Open the door */
if(treasure_captured && gate_top_current_y > gate_top_y)
open_door();
/* display the submarine */
goo_canvas_item_set_simple_transform(submarine_item,
submarine_x - submarine_width/2.0,
depth + SURFACE_DEPTH - submarine_height/2.0,
1, -assiette);
/* the frigate */
{
GooCanvasBounds bounds;
goo_canvas_item_get_bounds(frigate_item, &bounds);
//goo_canvas_item_translate(frigate_item, - FRIGATE_SPEED * UPDATE_DELAY_SLOW/1000.0, 0.0);
/* detects a collision between the frigate and the submarine */
if (depth <= 30.0 && !submarine_destroyed)
if ( (submarine_x - submarine_width <= bounds.x1 && submarine_x >= bounds.x2) ||
(submarine_x - submarine_width >= bounds.x1 && submarine_x - submarine_width <= bounds.x2) ||
(submarine_x >= bounds.x1 && submarine_x <= bounds.x2) ) {
submarine_explosion();
}
/* wraps the destroyer if it reached the left side (and disappeared for a long time)*/
//if (bounds.x2 < -300.0)
//gc_item_absolute_move( frigate_item, BOARDWIDTH, bounds.y1 );
}
/* whale detection */
{
gdouble dist1, dist2, dist3;
dist1 = hypot( submarine_x -submarine_width/2 -whale_x,
depth+SURFACE_IN_BACKGROUND-whale_y);
dist2 = hypot(submarine_x - submarine_width - whale_x,
depth+SURFACE_IN_BACKGROUND-whale_y);
dist3 = hypot(submarine_x - whale_x,
depth+SURFACE_IN_BACKGROUND-whale_y);
/* magnetic detection (dist1) or collision with the whale (dist2 & dist3) */
if ( (dist1 < WHALE_DETECTION_RADIUS
|| dist2 < WHALE_DETECTION_RADIUS
|| dist3 < WHALE_DETECTION_RADIUS)
&& !submarine_destroyed ) {
g_object_set (whale, "visibility", GOO_CANVAS_ITEM_INVISIBLE, NULL);
g_object_set (big_explosion, "visibility", GOO_CANVAS_ITEM_VISIBLE, NULL);
submarine_explosion();
}
}
/* treasure detection */
{
gdouble dist1, dist2, dist3;
dist1 = hypot( submarine_x -submarine_width/2 -treasure_x,
depth+SURFACE_IN_BACKGROUND-treasure_y);
dist2 = hypot(submarine_x - submarine_width - treasure_x,
depth+SURFACE_IN_BACKGROUND-treasure_y);
dist3 = hypot(submarine_x - treasure_x,
depth+SURFACE_IN_BACKGROUND-treasure_y);
/* magnetic detection (dist1) or collision with the treasure (dist2 & dist3) */
if ( (dist1 < TREASURE_DETECTION_RADIUS
|| dist2 < TREASURE_DETECTION_RADIUS
|| dist3 < TREASURE_DETECTION_RADIUS)
&& !treasure_captured ) {
gc_sound_play_ogg("sounds/tuxok.wav", NULL);
g_object_set (treasure, "visibility", GOO_CANVAS_ITEM_INVISIBLE, NULL);
treasure_captured = TRUE;
open_door();
}
}
return TRUE;
}
