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61 lines
1.4 KiB
61 lines
1.4 KiB
#include "mapobject.h"
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#include <stdlib.h>
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MapObject * MapObjectInit(Sprite *sprite, int id){
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MapObject *new = malloc(sizeof(MapObject));
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new->sprite = sprite;
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new->id = id;
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new->next = 0;
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new->prev = 0;
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return new;
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}
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MapObjectList * MapObjectListInit(){
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MapObjectList *new = malloc(sizeof(MapObjectList));
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new->head = 0;
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new->tail = 0;
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return new;
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}
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void MapObjectListPrintForward(MapObjectList *mapObjects){
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}
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void MapObjectListInsert(MapObjectList *mapObjects, MapObject *data){
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if(mapObjects->head == 0){
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mapObjects->head = data;
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mapObjects->tail = data;
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}
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else{
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mapObjects->tail->next = data;
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data->prev = mapObjects->tail;
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mapObjects->tail = data;
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}
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}
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void MapObjectListRemove(MapObjectList *mapObjects, MapObject *remove){
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if(remove == 0){
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printf("WARNING: TRIED TO REMOVE NULLPOINTER\n");
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}
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else if(mapObjects->head == remove && mapObjects->tail == remove){
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mapObjects->head = 0;
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mapObjects->tail = 0;
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}
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else if(mapObjects->head == remove){
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remove->next->prev = 0;
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mapObjects->head = remove->next;
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}
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else if(mapObjects->tail == remove){
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remove->prev->next = 0;
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mapObjects->tail = remove->prev;
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}
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else{
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remove->prev->next = remove->next;
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remove->next->prev = remove->prev;
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}
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remove->next = 0;
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remove->prev = 0;
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}
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