32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
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#include <gai_fsm.h>
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static os_int_t FindNextState(gai_fsm_t* self, os_list_t* transitions, void* ud){
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os_list_node_t * p_node = 0;
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for(p_node = transitions->next; p_node!=transitions; p_node= p_node->next){
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gai_fsm_transition_t* p_transition = os_list_member_of(p_node, gai_fsm_transition_t, node);
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if(p_transition->evaluator(self, p_transition, ud)){
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return p_transition->to_state_id;
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}
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}
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return -1;
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}
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void gai_fsm_update(gai_fsm_t* self, void* userdata){
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if(!self->current_state_p){
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return;
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}
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gai_action_status_t status = gai_fsm_status(self);
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if(status==kGaiActionStatus_Running){
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gai_action_Update(&self->current_state_p->action, userdata);
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}else if(status==kGaiActionStatus_Terminated){
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os_int_t to_state_id = FindNextState(self, &self->current_state_p->transition_list, userdata);
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gai_fsm_state_t* p_next_state = gai_fsm_find_state(self, to_state_id);
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if(p_next_state){
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gai_action_Cleanup(&self->current_state_p->action);
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self->current_state_p = p_next_state;
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gai_action_Initialize(&self->current_state_p->action);
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}
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}
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}
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