• Advertisement

Archived

This topic is now archived and is closed to further replies.

Sorting a linked list

This topic is 6059 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

I have a array of 8 NPCs sructers. Each is linked to the next NPC and to the last NPC by a int. But i am having truble with my sorting. I wanted to sort them by there y values, in ascending order. But it just will not work. here is my code for sorting: struct NPCS { int nextNpc, lastNpc; RECT npcDestination; // location on the map } struct NPC { int numNPCs; // this equals 8 NPCS npcs[8]; }; NPC npc; int snlTemp = -1; // SortNpcListTemp // Initialize them for (int outer=0;outer<(npc.numNPCs-1);outer++) { for (int inner=outer;innernpc.npcs[inner].npcDestination.top) { // Update the lastNpc to point to the other Npc if (npc.npcs[outer].lastNpc!=-1) { npc.npcs[npc.npcs[outer].lastNpc].nextNpc = inner; } if (npc.npcs[inner].lastNpc!=-1) { npc.npcs[npc.npcs[inner].lastNpc].nextNpc = outer; } // Switch the lastNpc snlTemp = npc.npcs[inner].lastNpc; npc.npcs[inner].lastNpc = npc.npcs[outer].lastNpc; npc.npcs[outer].lastNpc = snlTemp; // Update the nextNpc to point to the other Npc if (npc.npcs[outer].nextNpc!=-1) { npc.npcs[npc.npcs[outer].nextNpc].lastNpc = inner; } if (npc.npcs[inner].nextNpc!=-1) { npc.npcs[npc.npcs[inner].nextNpc].lastNpc = outer; } // Switch the nextNpc snlTemp = npc.npcs[inner].nextNpc; npc.npcs[inner].nextNpc = npc.npcs[outer].nextNpc; npc.npcs[outer].nextNpc = snlTemp; } } } Well i hope that this gives the general idea. Any way here are my 8 NPCs and there values, npcDestination.top is there y value: npc.npcs[0].npcDestination.top = 20 npc.npcs[1].npcDestination.top = 20 npc.npcs[2].npcDestination.top = 750 npc.npcs[3].npcDestination.top = 500 npc.npcs[4].npcDestination.top = 500 npc.npcs[5].npcDestination.top = 70 npc.npcs[6].npcDestination.top = 20 npc.npcs[7].npcDestination.top = 900 That is there y values, now this is how my code sorts them: npcs[0] npcs[1] npcs[4] npcs[5] npcs[6] npcs[3] npcs[2] npcs[7] When the correct sort is: npcs[0] npcs[1] npcs[6] npcs[3] npcs[4] npcs[5] npcs[2] npcs[7] Only the middle 4 are wrong. I can''t figure our why, can anyone help???

Share this post


Link to post
Share on other sites
Advertisement
Man, alot of people posted to my question! Well, i guess i have to thank you all who posted to my problem, because i fixed it, thanks!

Share this post


Link to post
Share on other sites

  • Advertisement