@ -37,7 +37,7 @@ static cpVect v2_to_cp(V2 v)
return cpv ( v . x , v . y ) ;
return cpv ( v . x , v . y ) ;
} }
bool was_entity_deleted ( struct GameState * gs , EntityID id ) bool was_entity_deleted ( GameState * gs , EntityID id )
{ {
if ( id . generation = = 0 ) return false ; // generation 0 means null entity ID, not a deleted entity
if ( id . generation = = 0 ) return false ; // generation 0 means null entity ID, not a deleted entity
Entity * the_entity = & gs - > entities [ id . index ] ;
Entity * the_entity = & gs - > entities [ id . index ] ;
@ -45,7 +45,7 @@ bool was_entity_deleted(struct GameState* gs, EntityID id)
} }
// may return null if it doesn't exist anymore
// may return null if it doesn't exist anymore
Entity * get_entity ( struct GameState * gs , EntityID id ) Entity * get_entity ( GameState * gs , EntityID id )
{ {
if ( id . generation = = 0 )
if ( id . generation = = 0 )
{
{
@ -59,18 +59,18 @@ Entity* get_entity(struct GameState* gs, EntityID id)
return to_return ;
return to_return ;
} }
EntityID get_id ( struct GameState * gs , Entity * e ) EntityID get_id ( GameState * gs , Entity * e )
{ {
if ( e = = NULL )
if ( e = = NULL )
return ( EntityID ) { 0 } ;
return ( EntityID ) { 0 } ;
size_t index = e - gs - > entities ;
size_t index = ( e - gs - > entities ) ;
assert ( index > = 0 ) ;
assert ( index > = 0 ) ;
assert ( index < gs - > cur_next_entity ) ;
assert ( index < gs - > cur_next_entity ) ;
return ( EntityID ) {
return ( EntityID ) {
. generation = e - > generation ,
. generation = e - > generation ,
. index = index ,
. index = ( unsigned int ) index ,
} ;
} ;
} }
@ -84,12 +84,12 @@ static Entity* cp_body_entity(cpBody* body)
return ( Entity * ) cpBodyGetUserData ( body ) ;
return ( Entity * ) cpBodyGetUserData ( body ) ;
} }
static struct GameState * cp_space_gs ( cpSpace * space ) static GameState * cp_space_gs ( cpSpace * space )
{ {
return ( struct GameState * ) cpSpaceGetUserData ( space ) ;
return ( GameState * ) cpSpaceGetUserData ( space ) ;
} }
int grid_num_boxes ( struct GameState * gs , Entity * e ) int grid_num_boxes ( GameState * gs , Entity * e )
{ {
assert ( e - > is_grid ) ;
assert ( e - > is_grid ) ;
int to_return = 0 ;
int to_return = 0 ;
@ -122,6 +122,20 @@ void box_remove_from_boxes(GameState* gs, Entity* box)
} }
void on_entity_child_shape ( cpBody * body , cpShape * shape , void * data ) ; void on_entity_child_shape ( cpBody * body , cpShape * shape , void * data ) ;
// gs is for iterating over all child shapes and destroying those, too
static void destroy_body ( GameState * gs , cpBody * * body )
{
if ( * body ! = NULL )
{
cpBodyEachShape ( * body , on_entity_child_shape , ( void * ) gs ) ;
cpSpaceRemoveBody ( gs - > space , * body ) ;
cpBodyFree ( * body ) ;
* body = NULL ;
}
* body = NULL ;
}
void entity_destroy ( GameState * gs , Entity * e ) void entity_destroy ( GameState * gs , Entity * e )
{ {
assert ( e - > exists ) ;
assert ( e - > exists ) ;
@ -142,15 +156,7 @@ void entity_destroy(GameState* gs, Entity* e)
cpShapeFree ( e - > shape ) ;
cpShapeFree ( e - > shape ) ;
e - > shape = NULL ;
e - > shape = NULL ;
}
}
if ( e - > body ! = NULL )
destroy_body ( gs , & e - > body ) ;
{
cpBodyEachShape ( e - > body , on_entity_child_shape , ( void * ) gs ) ;
cpSpaceRemoveBody ( gs - > space , e - > body ) ;
cpBodyFree ( e - > body ) ;
e - > body = NULL ;
}
e - > body = NULL ;
e - > shape = NULL ;
Entity * front_of_free_list = get_entity ( gs , gs - > free_list ) ;
Entity * front_of_free_list = get_entity ( gs , gs - > free_list ) ;
if ( front_of_free_list ! = NULL )
if ( front_of_free_list ! = NULL )
@ -167,7 +173,7 @@ void on_entity_child_shape(cpBody* body, cpShape* shape, void* data)
entity_destroy ( ( GameState * ) data , cp_shape_entity ( shape ) ) ;
entity_destroy ( ( GameState * ) data , cp_shape_entity ( shape ) ) ;
} }
Entity * new_entity ( struct GameState * gs ) Entity * new_entity ( GameState * gs )
{ {
Entity * to_return = NULL ;
Entity * to_return = NULL ;
if ( get_entity ( gs , gs - > free_list ) ! = NULL )
if ( get_entity ( gs , gs - > free_list ) ! = NULL )
@ -188,7 +194,7 @@ Entity* new_entity(struct GameState* gs)
return to_return ;
return to_return ;
} }
void create_body ( struct GameState * gs , Entity * e ) void create_body ( GameState * gs , Entity * e )
{ {
assert ( gs - > space ! = NULL ) ;
assert ( gs - > space ! = NULL ) ;
@ -204,7 +210,20 @@ void create_body(struct GameState* gs, Entity* e)
cpBodySetUserData ( e - > body , ( void * ) e ) ;
cpBodySetUserData ( e - > body , ( void * ) e ) ;
} }
void grid_create ( struct GameState * gs , Entity * e ) V2 player_vel ( GameState * gs , Entity * player )
{
assert ( player - > is_player ) ;
Entity * potential_seat = get_entity ( gs , player - > currently_piloting_seat ) ;
if ( potential_seat ! = NULL )
{
return cp_to_v2 ( cpBodyGetVelocity ( get_entity ( gs , potential_seat - > shape_parent_entity ) - > body ) ) ;
}
else {
return cp_to_v2 ( cpBodyGetVelocity ( player - > body ) ) ;
}
}
void grid_create ( GameState * gs , Entity * e )
{ {
e - > is_grid = true ;
e - > is_grid = true ;
create_body ( gs , e ) ;
create_body ( gs , e ) ;
@ -243,7 +262,7 @@ void create_rectangle_shape(GameState* gs, Entity* e, Entity* parent, V2 pos, V2
cpSpaceAddShape ( gs - > space , e - > shape ) ;
cpSpaceAddShape ( gs - > space , e - > shape ) ;
} }
void create_player ( struct GameState * gs , Entity * e ) void create_player ( GameState * gs , Entity * e )
{ {
e - > is_player = true ;
e - > is_player = true ;
create_body ( gs , e ) ;
create_body ( gs , e ) ;
@ -253,7 +272,7 @@ void create_player(struct GameState* gs, Entity* e)
// box must be passed as a parameter as the box added to chipmunk uses this pointer in its
// box must be passed as a parameter as the box added to chipmunk uses this pointer in its
// user data. pos is in local coordinates. Adds the box to the grid's chain of boxes
// user data. pos is in local coordinates. Adds the box to the grid's chain of boxes
void box_create ( struct GameState * gs , Entity * new_box , Entity * grid , V2 pos ) void box_create ( GameState * gs , Entity * new_box , Entity * grid , V2 pos )
{ {
new_box - > is_box = true ;
new_box - > is_box = true ;
assert ( gs - > space ! = NULL ) ;
assert ( gs - > space ! = NULL ) ;
@ -276,7 +295,7 @@ void box_create(struct GameState* gs, Entity* new_box, Entity* grid, V2 pos)
// removes boxes from grid, then ensures that the rule that grids must not have
// removes boxes from grid, then ensures that the rule that grids must not have
// holes in them is applied.
// holes in them is applied.
static void grid_remove_box ( struct GameState * gs , struct Entity * grid , struct Entity * box ) static void grid_remove_box ( GameState * gs , struct Entity * grid , struct Entity * box )
{ {
assert ( grid - > is_grid ) ;
assert ( grid - > is_grid ) ;
assert ( box - > is_box ) ;
assert ( box - > is_box ) ;
@ -341,17 +360,17 @@ static void grid_remove_box(struct GameState* gs, struct Entity* grid, struct En
V2 cur_local_pos = entity_shape_pos ( N ) ;
V2 cur_local_pos = entity_shape_pos ( N ) ;
const V2 dirs [ ] = {
const V2 dirs [ ] = {
( V2 ) {
( V2 ) {
. x = - 1.0f , . y = 0.0f . x = - 1.0f , . y = 0.0f
} , } ,
( V2 ) {
( V2 ) {
. x = 1.0f , . y = 0.0f . x = 1.0f , . y = 0.0f
} , } ,
( V2 ) {
( V2 ) {
. x = 0.0f , . y = 1.0f . x = 0.0f , . y = 1.0f
} , } ,
( V2 ) {
( V2 ) {
. x = 0.0f , . y = - 1.0f . x = 0.0f , . y = - 1.0f
} , } ,
} ;
} ;
int num_dirs = sizeof ( dirs ) / sizeof ( * dirs ) ;
int num_dirs = sizeof ( dirs ) / sizeof ( * dirs ) ;
@ -364,7 +383,7 @@ static void grid_remove_box(struct GameState* gs, struct Entity* grid, struct En
EntityID box_in_direction = ( EntityID ) { 0 } ;
EntityID box_in_direction = ( EntityID ) { 0 } ;
BOXES_ITER ( gs , cur , grid )
BOXES_ITER ( gs , cur , grid )
{
{
if ( V2 cmp ( entity_shape_pos ( cur ) , wanted_local_pos , 0.01f ) )
if ( V2 equal ( entity_shape_pos ( cur ) , wanted_local_pos , 0.01f ) )
{
{
box_in_direction = get_id ( gs , cur ) ;
box_in_direction = get_id ( gs , cur ) ;
break ;
break ;
@ -428,18 +447,6 @@ static void grid_remove_box(struct GameState* gs, struct Entity* grid, struct En
}
}
} }
static void postStepRemove ( cpSpace * space , void * key , void * data )
{
cpShape * b = ( cpShape * ) key ;
Entity * e = cp_shape_entity ( b ) ;
// @Robust why not just do these deletions in the update loop? save on a lot of complexity
if ( e - > damage > 1.0f )
{
if ( e - > is_box )
grid_remove_box ( cp_space_gs ( space ) , cp_body_entity ( cpShapeGetBody ( b ) ) , e ) ;
}
}
static cpBool on_damage ( cpArbiter * arb , cpSpace * space , cpDataPointer userData ) static cpBool on_damage ( cpArbiter * arb , cpSpace * space , cpDataPointer userData )
{ {
cpShape * a , * b ;
cpShape * a , * b ;
@ -458,28 +465,28 @@ static cpBool on_damage(cpArbiter* arb, cpSpace* space, cpDataPointer userData)
}
}
// b must be the key passed into the post step removed, the key is cast into its shape
// b must be the key passed into the post step removed, the key is cast into its shape
cpSpaceAddPostStepCallback ( space , ( cpPostStepFunc ) postStepRemove , b , NULL ) ;
//cpSpaceAddPostStepCallback(space, (cpPostStepFunc)postStepRemove, b, NULL);
cpSpaceAddPostStepCallback ( space , ( cpPostStepFunc ) postStepRemove , a , NULL ) ;
//cpSpaceAddPostStepCallback(space, (cpPostStepFunc)postStepRemove, a, NULL);
return true ; // keep colliding
return true ; // keep colliding
} }
void initialize ( struct GameState * gs , void * entity_arena , in t entity_arena_size ) void initialize ( GameState * gs , void * entity_arena , size_ t entity_arena_size )
{ {
* gs = ( struct GameState ) { 0 } ;
* gs = ( GameState ) { 0 } ;
memset ( entity_arena , 0 , entity_arena_size ) ; // SUPER critical. Random vals in the entity data causes big problem
memset ( entity_arena , 0 , entity_arena_size ) ; // SUPER critical. Random vals in the entity data causes big problem
gs - > entities = ( Entity * ) entity_arena ;
gs - > entities = ( Entity * ) entity_arena ;
gs - > max_entities = entity_arena_size / sizeof ( Entity ) ;
gs - > max_entities = ( unsigned int ) ( entity_arena_size / sizeof ( Entity ) ) ;
gs - > space = cpSpaceNew ( ) ;
gs - > space = cpSpaceNew ( ) ;
cpSpaceSetUserData ( gs - > space , ( cpDataPointer ) gs ) ; // needed in the handler
cpSpaceSetUserData ( gs - > space , ( cpDataPointer ) gs ) ; // needed in the handler
cpCollisionHandler * handler = cpSpaceAddCollisionHandler ( gs - > space , 0 , 0 ) ; // @Robust limit collision type to just blocks that can be damaged
cpCollisionHandler * handler = cpSpaceAddCollisionHandler ( gs - > space , 0 , 0 ) ; // @Robust limit collision type to just blocks that can be damaged
handler - > postSolveFunc = on_damage ;
handler - > postSolveFunc = on_damage ;
} }
void destroy ( struct GameState * gs ) void destroy ( GameState * gs )
{ {
// can't zero out gs data because the entity memory arena is reused
// can't zero out gs data because the entity memory arena is reused
// on deserialization
// on deserialization
for ( in t i = 0 ; i < gs - > max_entities ; i + + )
for ( size_ t i = 0 ; i < gs - > max_entities ; i + + )
{
{
if ( gs - > entities [ i ] . exists )
if ( gs - > entities [ i ] . exists )
entity_destroy ( gs , & gs - > entities [ i ] ) ;
entity_destroy ( gs , & gs - > entities [ i ] ) ;
@ -494,9 +501,11 @@ V2 grid_com(Entity* grid)
return cp_to_v2 ( cpBodyLocalToWorld ( grid - > body , cpBodyGetCenterOfGravity ( grid - > body ) ) ) ;
return cp_to_v2 ( cpBodyLocalToWorld ( grid - > body , cpBodyGetCenterOfGravity ( grid - > body ) ) ) ;
} }
V2 entity_pos ( Entity * grid ) V2 entity_pos ( Entity * e )
{ {
return cp_to_v2 ( cpBodyGetPosition ( grid - > body ) ) ;
assert ( ! e - > is_box ) ;
// @Robust merge entity_pos with box_pos
return cp_to_v2 ( cpBodyGetPosition ( e - > body ) ) ;
} }
V2 grid_vel ( Entity * grid ) V2 grid_vel ( Entity * grid )
{ {
@ -579,7 +588,7 @@ void update_from(cpBody* body, struct BodyData* data)
cpBodySetAngularVelocity ( body , data - > angular_velocity ) ;
cpBodySetAngularVelocity ( body , data - > angular_velocity ) ;
} }
# define WRITE_VARNAMES //#define WRITE_VARNAMES
typedef struct SerState typedef struct SerState
{ {
char * bytes ;
char * bytes ;
@ -587,10 +596,11 @@ typedef struct SerState
size_t cursor ; // points to next available byte, is the size of current message after serializing something
size_t cursor ; // points to next available byte, is the size of current message after serializing something
size_t max_size ;
size_t max_size ;
} SerState ; } SerState ;
void ser_var ( SerState * ser , char * var_pointer , size_t var_size , const char * name void ser_var ( SerState * ser , char * var_pointer , size_t var_size , const char * name , const char * file , int line )
{ {
const char * var_name = name ;
# ifdef WRITE_VARNAMES # ifdef WRITE_VARNAMES
char var_name [ 512 ] = { 0 } ;
snprintf ( var_name , 512 , " %d%s " , line , name ) ; // can't have separator before the name, when comparing names skips past the digit
size_t var_name_len = strlen ( var_name ) ;
size_t var_name_len = strlen ( var_name ) ;
# endif # endif
if ( ser - > serializing )
if ( ser - > serializing )
@ -611,7 +621,7 @@ void ser_var(SerState* ser, char* var_pointer, size_t var_size, const char* name
{
{
# ifdef WRITE_VARNAMES # ifdef WRITE_VARNAMES
{
{
char read_name [ 0 24 ] = { 0 } ;
char read_name [ 5 12] = { 0 } ;
for ( int i = 0 ; i < var_name_len ; i + + )
for ( int i = 0 ; i < var_name_len ; i + + )
{
{
@ -620,11 +630,18 @@ void ser_var(SerState* ser, char* var_pointer, size_t var_size, const char* name
assert ( ser - > cursor < ser - > max_size ) ;
assert ( ser - > cursor < ser - > max_size ) ;
}
}
read_name [ var_name_len ] = ' \0 ' ;
read_name [ var_name_len ] = ' \0 ' ;
if ( strcmp ( read_name , var_name ) ! = 0 )
// advance past digits
char * read = read_name ;
char * var = var_name ;
while ( * read > = ' 0 ' & & * read < = ' 9 ' )
read + + ;
while ( * var > = ' 0 ' & & * var < = ' 9 ' )
var + + ;
if ( strcmp ( read , var ) ! = 0 )
{
{
printf ( " %s:%d | Expected variable %s but got %sn \n " , __FILE__ , __LINE__ , var_name , read_name ) ;
printf ( " %s:%d | Expected variable %s but got %sn \n " , file, line , var_name , read_name ) ;
* ( char * ) NULL = 0 ;
* ( char * ) NULL = 0 ;
}
}
}
}
# endif # endif
for ( int b = 0 ; b < var_size ; b + + )
for ( int b = 0 ; b < var_size ; b + + )
@ -636,7 +653,7 @@ void ser_var(SerState* ser, char* var_pointer, size_t var_size, const char* name
}
}
} }
# define SER_VAR_NAME(var_pointer, name) ser_var(ser, (char*)var_pointer, sizeof(var_pointer), name )# define SER_VAR_NAME(var_pointer, name) ser_var(ser, (char*)var_pointer, sizeof(var_pointer), name , __FILE__, __LINE__ )
# define SER_VAR(var_pointer) SER_VAR_NAME(var_pointer, #var_pointer) # define SER_VAR(var_pointer) SER_VAR_NAME(var_pointer, #var_pointer)
void ser_V2 ( SerState * ser , V2 * var ) void ser_V2 ( SerState * ser , V2 * var )
@ -661,16 +678,20 @@ void ser_entityid(SerState* ser, EntityID* id)
void ser_inputframe ( SerState * ser , struct InputFrame * i ) void ser_inputframe ( SerState * ser , struct InputFrame * i )
{ {
SER_VAR ( & i - > tick ) ;
SER_VAR ( & i - > movement ) ;
SER_VAR ( & i - > movement ) ;
SER_VAR ( & i - > inhabit ) ;
SER_VAR ( & i - > build ) ;
SER_VAR ( & i - > seat_action ) ;
ser_entityid ( ser , & i - > seat_to_inhabit ) ;
SER_VAR ( & i - > hand_pos ) ;
SER_VAR ( & i - > dobuild ) ;
SER_VAR ( & i - > dobuild ) ;
SER_VAR ( & i - > build_type ) ;
SER_VAR ( & i - > build_type ) ;
SER_VAR ( & i - > build_rotation ) ;
SER_VAR ( & i - > build_rotation ) ;
ser_entityid ( ser , & i - > grid_to_build_on ) ;
ser_entityid ( ser , & i - > grid_to_build_on ) ;
} }
void ser_player ( SerState * ser , struct Player * p ) void ser_player ( SerState * ser , Player * p )
{ {
SER_VAR ( & p - > connected ) ;
SER_VAR ( & p - > connected ) ;
if ( p - > connected )
if ( p - > connected )
@ -680,7 +701,7 @@ void ser_player(SerState* ser, struct Player* p)
}
}
} }
void ser_entity ( SerState * ser , struct GameState * gs , Entity * e ) void ser_entity ( SerState * ser , GameState * gs , Entity * e )
{ {
SER_VAR ( & e - > generation ) ;
SER_VAR ( & e - > generation ) ;
SER_VAR ( & e - > damage ) ;
SER_VAR ( & e - > damage ) ;
@ -754,13 +775,15 @@ void ser_entity(SerState* ser, struct GameState* gs, Entity* e)
ser_entityid ( ser , & e - > prev_box ) ;
ser_entityid ( ser , & e - > prev_box ) ;
SER_VAR ( & e - > compass_rotation ) ;
SER_VAR ( & e - > compass_rotation ) ;
SER_VAR ( & e - > thrust ) ;
SER_VAR ( & e - > thrust ) ;
SER_VAR ( & e - > wanted_thrust ) ;
SER_VAR ( & e - > energy_used ) ;
SER_VAR ( & e - > energy_used ) ;
ser_entityid ( ser , & e - > piloted_by ) ;
}
}
} }
void ser_server_to_client ( SerState * ser , ServerToClient * s ) void ser_server_to_client ( SerState * ser , ServerToClient * s )
{ {
struct GameState * gs = s - > cur_gs ;
GameState * gs = s - > cur_gs ;
int cur_next_entity = 0 ;
int cur_next_entity = 0 ;
if ( ser - > serializing )
if ( ser - > serializing )
@ -780,20 +803,22 @@ void ser_server_to_client(SerState* ser, ServerToClient* s)
ser_V2 ( ser , & gs - > goldpos ) ;
ser_V2 ( ser , & gs - > goldpos ) ;
for ( in t i = 0 ; i < MAX_PLAYERS ; i + + )
for ( size_ t i = 0 ; i < MAX_PLAYERS ; i + + )
{
{
ser_player ( ser , & gs - > players [ i ] ) ;
ser_player ( ser , & gs - > players [ i ] ) ;
}
}
if ( ser - > serializing )
if ( ser - > serializing )
{
{
for ( int i = 0 ; i < gs - > cur_next_entity ; i + + )
bool entities_done = false ;
for ( size_t i = 0 ; i < gs - > cur_next_entity ; i + + )
{
{
Entity * e = & gs - > entities [ i ] ;
Entity * e = & gs - > entities [ i ] ;
if ( e - > exists )
if ( e - > exists )
{
{
if ( e - > is_player )
if ( e - > is_player )
{
{
SER_VAR ( & entities_done ) ;
SER_VAR ( & i ) ;
SER_VAR ( & i ) ;
ser_entity ( ser , gs , e ) ;
ser_entity ( ser , gs , e ) ;
}
}
@ -801,35 +826,41 @@ void ser_server_to_client(SerState* ser, ServerToClient* s)
{
{
// serialize boxes always after bodies, so that by the time the boxes
// serialize boxes always after bodies, so that by the time the boxes
// are loaded in the parent body is loaded in and can be referenced.
// are loaded in the parent body is loaded in and can be referenced.
SER_VAR ( & entities_done ) ;
SER_VAR ( & i ) ;
SER_VAR ( & i ) ;
ser_entity ( ser , gs , e ) ;
ser_entity ( ser , gs , e ) ;
BOXES_ITER ( gs , cur , e )
BOXES_ITER ( gs , cur , e )
{
{
EntityID cur_id = get_id ( gs , cur ) ;
EntityID cur_id = get_id ( gs , cur ) ;
SER_VAR_NAME ( & cur_id . index , " &i " ) ;
assert ( cur_id . index < gs - > max_entities ) ;
SER_VAR ( & entities_done ) ;
size_t the_index = ( size_t ) cur_id . index ; // super critical. Type of &i is size_t. @Robust add debug info in serialization for what size the expected type is, maybe string nameof the type
SER_VAR_NAME ( & the_index , " &i " ) ;
ser_entity ( ser , gs , cur ) ;
ser_entity ( ser , gs , cur ) ;
}
}
}
}
}
}
}
}
int end_of_entities = - 1 ;
entities_done = true ;
SER_VAR _NAME( & end_of_entities , " &i " ) ;
SER_VAR ( & entities_done ) ;
}
}
else
else
{
{
while ( true )
while ( true )
{
{
int next_index ;
bool entities_done = false ;
SER_VAR _NAME( & next_index , " &i " ) ;
SER_VAR ( & entities_done ) ;
if ( next_index = = - 1 )
if ( entities_done )
break ;
break ;
size_t next_index ;
SER_VAR_NAME ( & next_index , " &i " ) ;
assert ( next_index < gs - > max_entities ) ;
assert ( next_index < gs - > max_entities ) ;
Entity * e = & gs - > entities [ next_index ] ;
Entity * e = & gs - > entities [ next_index ] ;
e - > exists = true ;
e - > exists = true ;
ser_entity ( ser , gs , e ) ;
ser_entity ( ser , gs , e ) ;
gs - > cur_next_entity = max ( gs - > cur_next_entity , next_index + 1 ) ;
gs - > cur_next_entity = ( unsigned int ) max ( gs - > cur_next_entity , next_index + 1 ) ;
}
}
for ( in t i = 0 ; i < gs - > cur_next_entity ; i + + )
for ( size_ t i = 0 ; i < gs - > cur_next_entity ; i + + )
{
{
Entity * e = & gs - > entities [ i ] ;
Entity * e = & gs - > entities [ i ] ;
if ( ! e - > exists )
if ( ! e - > exists )
@ -841,7 +872,7 @@ void ser_server_to_client(SerState* ser, ServerToClient* s)
}
}
} }
void into_bytes ( struct ServerToClient * msg , char * bytes , size_t * out_len , size_t max_len ) void into_bytes ( struct ServerToClient * msg , char * bytes , size_t * out_len , size_t max_len )
{ {
assert ( msg - > cur_gs ! = NULL ) ;
assert ( msg - > cur_gs ! = NULL ) ;
assert ( msg ! = NULL ) ;
assert ( msg ! = NULL ) ;
@ -889,7 +920,7 @@ static void closest_point_callback_func(cpShape* shape, cpContactPointSet* point
}
}
} }
Entity * closest_to_point_in_radius ( struct GameState * gs , V2 point , float radius ) Entity * closest_to_point_in_radius ( GameState * gs , V2 point , float radius )
{ {
closest_to_point_in_radius_result = NULL ;
closest_to_point_in_radius_result = NULL ;
closest_to_point_in_radius_result_largest_dist = 0.0f ;
closest_to_point_in_radius_result_largest_dist = 0.0f ;
@ -926,12 +957,12 @@ V2 thruster_force(Entity* box)
return V2scale ( thruster_direction ( box ) , - box - > thrust * THRUSTER_FORCE ) ;
return V2scale ( thruster_direction ( box ) , - box - > thrust * THRUSTER_FORCE ) ;
} }
uint64_t tick ( struct GameState * gs ) uint64_t tick ( GameState * gs )
{ {
return ( uint64_t ) floor ( gs - > time / ( ( double ) TIMESTEP ) ) ;
return ( uint64_t ) floor ( gs - > time / ( ( double ) TIMESTEP ) ) ;
} }
void process ( struct GameState * gs , float dt ) void process ( GameState * gs , float dt )
{ {
assert ( gs - > space ! = NULL ) ;
assert ( gs - > space ! = NULL ) ;
@ -956,70 +987,42 @@ void process(struct GameState* gs, float dt)
// update gold win condition
// update gold win condition
if ( V2length ( V2sub ( cp_to_v2 ( cpBodyGetPosition ( p - > body ) ) , gs - > goldpos ) ) < GOLD_COLLECT_RADIUS )
if ( V2length ( V2sub ( cp_to_v2 ( cpBodyGetPosition ( p - > body ) ) , gs - > goldpos ) ) < GOLD_COLLECT_RADIUS )
{
{
p - > goldness + = 0.1 ;
p - > goldness + = 0.1 f ;
p - > spice_taken_away = 0.0f ;
p - > spice_taken_away = 0.0f ;
gs - > goldpos = ( V2 ) { . x = hash11 ( gs - > time ) * 20.0f , . y = hash11 ( gs - > time - 13.6f ) * 20.0f } ;
gs - > goldpos = ( V2 ) { . x = hash11 ( ( float ) gs - > time ) * 20.0f , . y = hash11 ( ( float ) gs - > time - 13.6f ) * 20.0f } ;
}
}
if ( get_entity ( gs , p - > currently_piloting_seat ) = = NULL )
# if 1
if ( player - > input . seat_action )
{
{
p - > currently_piloting_seat = ( EntityID ) { 0 } ;
player - > input . seat_action = false ; // "handle" the input
}
Entity * the_seat = get_entity ( gs , p - > currently_piloting_seat ) ;
if ( the_seat = = NULL ) // not piloting any seat
// @Todo do getting inside pilot seat
#if 0
if ( p - > input . inhabit )
{
p - > input . inhabit = false ; // "handle" the input
if ( p - > currently_inhabiting_index = = - 1 )
{
{
// @Robust mask to only ship boxes of things the player can inhabit
cpPointQueryInfo query_info = { 0 } ;
cpPointQueryInfo query_info = { 0 } ;
cpShape * result = cpSpacePointQueryNearest ( gs - > space , v2_to_cp ( p - > ) , 0.1f , cpShapeFilterNew ( CP_NO_GROUP , CP_ALL_CATEGORIES , CP_ALL_CATEGORI ES) , & query_info ) ;
cpShape * result = cpSpacePointQueryNearest ( gs - > space , v2_to_cp ( player - > input . hand_pos ) , 0.1f , cpShapeFilterNew ( CP_NO_GROUP , CP_ALL_CATEGORIES , BOXES ) , & query_info ) ;
if ( result ! = NULL )
if ( result ! = NULL )
{
{
// result is assumed to be a box shape
Entity * potential_seat = cp_shape_entity ( result ) ;
struct Grid * g = ( struct Grid * ) cpBodyGetUserData ( cpShapeGetBody ( result ) ) ;
assert ( potential_seat - > is_box ) ;
int ship_to_inhabit = - 1 ;
if ( potential_seat - > box_type = = BoxCockpit )
for ( int ii = 0 ; ii < MAX_GRIDS ; ii + + )
{
{
SKIPNULL ( gs - > grids [ ii ] . body ) ;
p - > currently_piloting_seat = get_id ( gs , potential_seat ) ;
if ( & gs - > grids [ ii ] = = g )
potential_seat - > piloted_by = get_id ( gs , p ) ;
{
ship_to_inhabit = ii ;
break ;
}
}
// don't allow inhabiting a grid that's already inhabited
for ( int ii = 0 ; ii < MAX_PLAYERS ; ii + + )
{
if ( gs - > players [ ii ] . currently_inhabiting_index = = ship_to_inhabit )
{
Log ( " Attempted to inhabit already taken ship \n " ) ;
ship_to_inhabit = - 1 ;
}
}
if ( ship_to_inhabit = = - 1 )
{
Log ( " Couldn't find ship to inhabit even though point collision returned something \n " ) ;
}
else
{
p - > currently_inhabiting_index = ship_to_inhabit ;
}
}
}
}
else
else
{
{
Log ( " No ship above player at point %f %f \n " , p - > . x , p - > . y ) ;
Log ( " No ship above player at point %f %f \n " , player - > input . hand_pos . x , player - > input . hand_pos . y ) ;
}
}
}
}
else
else
{
{
p - > vel = grid_vel ( & gs - > grids [ p - > currently_inhabiting_index ] ) ;
V2 pilot_seat_exit_spot = V2add ( box_pos ( the_seat ) , V2rotate ( ( V2 ) { . x = BOX_SIZE } , rotangle ( the_seat - > compass_rotation ) ) ) ;
p - > currently_inhabiting_index = - 1 ;
cpBodySetPosition ( p - > body , v2_to_cp ( pilot_seat_exit_spot ) ) ;
cpBodySetVelocity ( p - > body , v2_to_cp ( player_vel ( gs , p ) ) ) ;
the_seat - > piloted_by = ( EntityID ) { 0 } ;
p - > currently_piloting_seat = ( EntityID ) { 0 } ;
}
}
}
}
# endif # endif
@ -1032,46 +1035,38 @@ void process(struct GameState* gs, float dt)
{
{
player - > input . movement = V2scale ( V2normalize ( player - > input . movement ) , clamp ( V2length ( player - > input . movement ) , 0.0f , 1.0f ) ) ;
player - > input . movement = V2scale ( V2normalize ( player - > input . movement ) , clamp ( V2length ( player - > input . movement ) , 0.0f , 1.0f ) ) ;
}
}
cpBodyApplyForceAtWorldPoint ( p - > body , v2_to_cp ( V2scale ( player - > input . movement , PLAYER_JETPACK_FORCE ) ) , cpBodyGetPosition ( p - > body ) ) ;
Entity * piloting_seat = get_entity ( gs , p - > currently_piloting_seat ) ;
p - > spice_taken_away + = movement_strength * dt * PLAYER_JETPACK_SPICE_PER_SECOND ;
// @Todo do pilot seat
if ( piloting_seat = = NULL )
#if 0
{
{
struct Grid * g = & gs - > grids [ p - > currently_inhabiting_index ] ;
cpShapeSetFilter ( p - > shape , CP_SHAPE_FILTER_ALL ) ;
V2 target_new_pos = V2lerp ( p - > pos , grid_com ( g ) , dt * 20.0f ) ;
cpBodyApplyForceAtWorldPoint ( p - > body , v2_to_cp ( V2scale ( player - > input . movement , PLAYER_JETPACK_FORCE ) ) , cpBodyGetPosition ( p - > body ) ) ;
p - > vel = V2scale ( V2sub ( target_new_pos , p - > pos ) , 1.0f / dt ) ; // set vel correctly so newly built grids have the correct velocity copied from it
p - > spice_taken_away + = movement_strength * dt * PLAYER_JETPACK_SPICE_PER_SECOND ;
}
else
{
cpShapeSetFilter ( p - > shape , CP_SHAPE_FILTER_NONE ) ; // no collisions while going to pilot seat
cpBodySetPosition ( p - > body , v2_to_cp ( box_pos ( piloting_seat ) ) ) ;
// set thruster thrust from movement
// set thruster thrust from movement
{
{
float energy_available = g - > total_energy_capacity ;
Entity * g = get_entity ( gs , piloting_seat - > shape_parent_entity ) ;
V2 target_direction = { 0 } ;
V2 target_direction = { 0 } ;
if ( V2length ( p - > input . movement ) > 0.0f )
if ( V2length ( p layer - > input . movement ) > 0.0f )
{
{
target_direction = V2normalize ( p - > input . movement ) ;
target_direction = V2normalize ( p layer - > input . movement ) ;
}
}
for ( int ii = 0 ; ii < MAX_BOXES_PER_GRID ; ii + + )
BOXES_ITER ( gs , cur , g )
{
{
SKIPNULL ( g - > boxes [ ii ] . shape ) ;
if ( cur - > box_type ! = BoxThruster )
if ( g - > boxes [ ii ] . type ! = BoxThruster )
continue ;
continue ;
float wanted_thrust = - V2dot ( target_direction , thruster_direction ( cur ) ) ;
float wanted_thrust = - V2dot ( target_direction , thruster_direction ( & g - > boxes [ ii ] ) ) ;
wanted_thrust = clamp01 ( wanted_thrust ) ;
wanted_thrust = clamp01 ( wanted_thrust ) ;
cur - > wanted_thrust = wanted_thrust ;
float needed_energy = wanted_thrust * THRUSTER_ENERGY_USED_PER_SECOND * dt ;
energy_available - = needed_energy ;
if ( energy_available > 0.0f )
g - > boxes [ ii ] . thrust = wanted_thrust ;
else
g - > boxes [ ii ] . thrust = 0.0f ;
}
}
}
}
// cpBodyApplyForceAtWorldPoint(g->body, v2_to_cp(V2scale(p->input.movement, 5.0f)), v2_to_cp(grid_com(g)));
// bigger the ship, the more efficient the spice usage
}
}
# endif
}
}
# if 1 // building
# if 1 // building
@ -1080,14 +1075,10 @@ void process(struct GameState* gs, float dt)
player - > input . dobuild = false ; // handle the input. if didn't do this, after destruction of hovered box, would try to build on its grid with grid_index...
player - > input . dobuild = false ; // handle the input. if didn't do this, after destruction of hovered box, would try to build on its grid with grid_index...
cpPointQueryInfo info = { 0 } ;
cpPointQueryInfo info = { 0 } ;
V2 world_build = player - > input . build ;
V2 world_build = player - > input . hand_pos ;
// @Robust sanitize this input so player can't build on any grid in the world
// @Robust sanitize this input so player can't build on any grid in the world
Entity * target_grid = get_entity ( gs , player - > input . grid_to_build_on ) ;
Entity * target_grid = get_entity ( gs , player - > input . grid_to_build_on ) ;
if ( target_grid ! = NULL )
{
world_build = grid_local_to_world ( target_grid , player - > input . build ) ;
}
cpShape * nearest = cpSpacePointQueryNearest ( gs - > space , v2_to_cp ( world_build ) , 0.01f , cpShapeFilterNew ( CP_NO_GROUP , CP_ALL_CATEGORIES , BOXES ) , & info ) ;
cpShape * nearest = cpSpacePointQueryNearest ( gs - > space , v2_to_cp ( world_build ) , 0.01f , cpShapeFilterNew ( CP_NO_GROUP , CP_ALL_CATEGORIES , BOXES ) , & info ) ;
if ( nearest ! = NULL )
if ( nearest ! = NULL )
{
{
@ -1107,7 +1098,7 @@ void process(struct GameState* gs, float dt)
box_create ( gs , new_box , new_grid , ( V2 ) { 0 } ) ;
box_create ( gs , new_box , new_grid , ( V2 ) { 0 } ) ;
new_box - > box_type = player - > input . build_type ;
new_box - > box_type = player - > input . build_type ;
new_box - > compass_rotation = player - > input . build_rotation ;
new_box - > compass_rotation = player - > input . build_rotation ;
cpBodySetVelocity ( new_grid - > body , cpBodyGetVelocity( p - > body ) ) ;
cpBodySetVelocity ( new_grid - > body , v2_to_cp( player_vel ( gs , p ) ) ) ;
}
}
else
else
{
{
@ -1128,59 +1119,42 @@ void process(struct GameState* gs, float dt)
p - > spice_taken_away = clamp01 ( p - > spice_taken_away ) ;
p - > spice_taken_away = clamp01 ( p - > spice_taken_away ) ;
}
}
// @Todo add thrust from thruster block s
// process grid s
#if 0 for ( size_t i = 0 ; i < gs - > cur_next_entity ; i + + ) {
for ( int i = 0 ; i < MAX_GRIDS ; i + + )
Entity * e = & gs - > entities [ i ] ;
{
if ( ! e - > exists )
SKIPNULL ( gs - > grids [ i ] . body ) ;
continue ;
struct Box * batteries [ MAX_BOXES_PER_GRID ] = { 0 } ;
if ( e - > is_box )
int cur_battery = 0 ;
for ( int ii = 0 ; ii < MAX_BOXES_PER_GRID ; ii + + )
{
{
SKIPNULL ( gs - > grids [ i ] . boxes [ ii ] . shape ) ;
if ( e - > damage > = 1.0f )
if ( gs - > grids [ i ] . boxes [ ii ] . type = = BoxBattery )
{
{
assert ( cur_battery < MAX_BOXES_PER_GRID ) ;
grid_remove_box ( gs , get_entity ( gs , e - > shape_parent_entity ) , e ) ;
batteries [ cur_battery ] = & gs - > grids [ i ] . boxes [ ii ] ;
cur_battery + + ;
}
}
}
}
int batteries_len = cur_battery ;
if ( e - > is_grid )
float thruster_energy_consumption_per_second = 0.0f ;
for ( int ii = 0 ; ii < MAX_BOXES_PER_GRID ; ii + + )
{
{
SKIPNULL ( gs - > grids [ i ] . boxes [ ii ] . shape ) ;
if ( gs - > grids [ i ] . boxes [ ii ] . type = = BoxThruster )
float thruster_energy_consumption_per_second = 0.0f ;
BOXES_ITER ( gs , cur , e )
{
{
float energy_to_consume = gs - > grids [ i ] . boxes [ ii ] . thrust * THRUSTER_ENERGY_USED_PER_SECOND * dt ;
if ( cur - > box_type = = BoxThruster )
struct Box * max_capacity_battery = NULL ;
float max_capacity_battery_energy_used = 1.0f ;
for ( int iii = 0 ; iii < batteries_len ; iii + + )
{
{
if ( batteries [ iii ] - > energy_used < max_capacity_battery_energy_used )
float energy_to_consume = cur - > wanted_thrust * THRUSTER_ENERGY_USED_PER_SECOND * dt ;
cur - > thrust = 0.0f ;
BOXES_ITER ( gs , possible_battery , e )
{
{
max_capacity_battery = batteries [ iii ] ;
if ( possible_battery - > box_type = = BoxBattery & & ( 1.0f - possible_battery - > energy_used ) > energy_to_consume )
max_capacity_battery_energy_used = batteries [ iii ] - > energy_used ;
{
possible_battery - > energy_used + = energy_to_consume ;
cur - > thrust = cur - > wanted_thrust ;
cpBodyApplyForceAtWorldPoint ( e - > body , v2_to_cp ( thruster_force ( cur ) ) , v2_to_cp ( box_pos ( cur ) ) ) ;
}
}
}
}
}
if ( max_capacity_battery ! = NULL & & ( 1.0f - max_capacity_battery - > energy_used ) > energy_to_consume )
{
max_capacity_battery - > energy_used + = energy_to_consume ;
cpBodyApplyForceAtWorldPoint ( gs - > grids [ i ] . body , v2_to_cp ( thruster_force ( & gs - > grids [ i ] . boxes [ ii ] ) ) , v2_to_cp ( box_pos ( & gs - > grids [ i ] . boxes [ ii ] ) ) ) ;
}
}
}
}
}
gs - > grids [ i ] . total_energy_capacity = 0.0f ;
for ( int ii = 0 ; ii < batteries_len ; ii + + )
{
gs - > grids [ i ] . total_energy_capacity + = 1.0f - batteries [ ii ] - > energy_used ;
}
}
}
# endif
cpSpaceStep ( gs - > space , dt ) ;
cpSpaceStep ( gs - > space , dt ) ;
} }
