mirror of
https://gitlab.com/ryandwyer/perfect-dark
synced 2026-06-20 23:41:13 -04:00
Ryan Dwyer
132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
#include <ultra64.h>
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#include "constants.h"
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#include "game/room.h"
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#include "bss.h"
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#include "lib/mtx.h"
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#include "data.h"
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#include "types.h"
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struct roommtx *g_RoomMtxes;
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s32 var80082050 = 0;
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s32 g_NextRoomMtx = 0;
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void roomSetLastForOffset(s32 room)
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{
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g_Vars.currentplayer->lastroomforoffset = room;
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}
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void room0f1668f0(struct roommtx *roommtx, s32 roomnum)
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{
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g_Rooms[roomnum].unk10[g_Vars.currentplayernum] = roommtx->index;
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roommtx->room1 = roomnum;
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}
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void room0f16692c(struct roommtx *roommtx, s32 roomnum)
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{
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g_Rooms[roomnum].unk10[roommtx->playernum] = -1;
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roommtx->room1 = -1;
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}
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void room0f16696c(struct roommtx *roommtx)
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{
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if (roommtx->room1 != -1) {
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room0f16692c(roommtx, roommtx->room1);
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}
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roommtx->lvframe = 0;
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roommtx->playernum = -1;
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roommtx->room2 = -1;
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roommtx->somefloat = 1;
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}
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/**
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* Find a free mtx and return it.
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*/
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struct roommtx *room0f1669fc(void)
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{
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s32 i;
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for (i = 0; i < var80082050; i++) {
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struct roommtx *roommtx = &g_RoomMtxes[g_NextRoomMtx];
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g_NextRoomMtx++;
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if (g_NextRoomMtx == var80082050) {
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g_NextRoomMtx = 0;
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}
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if (roommtx->lvframe < g_Vars.lvframenum - 2) {
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return roommtx;
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}
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}
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return &g_RoomMtxes[0];
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}
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void room0f166a6c(Mtxf *mtx, s32 roomnum)
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{
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mtx4LoadIdentity(mtx);
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if (roomnum == g_BgAlwaysRoom) {
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mtx->m[3][0] = g_BgRooms[roomnum].pos.x;
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mtx->m[3][1] = g_BgRooms[roomnum].pos.y;
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mtx->m[3][2] = g_BgRooms[roomnum].pos.z;
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} else {
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mtx->m[3][0] = g_BgRooms[roomnum].pos.x - g_Vars.currentplayer->globaldrawworldoffset.x;
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mtx->m[3][1] = g_BgRooms[roomnum].pos.y - g_Vars.currentplayer->globaldrawworldoffset.y;
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mtx->m[3][2] = g_BgRooms[roomnum].pos.z - g_Vars.currentplayer->globaldrawworldoffset.z;
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}
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}
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struct roommtx *room0f166c20(s32 roomnum)
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{
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s32 index = g_Rooms[roomnum].unk10[g_Vars.currentplayernum];
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struct roommtx *roommtx;
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Mtxf mtx;
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if (index != -1
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&& g_Vars.currentplayer->lastroomforoffset == g_RoomMtxes[index].room2
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&& g_RoomMtxes[index].somefloat == var8005ef10[0]) {
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roommtx = &g_RoomMtxes[index];
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roommtx->lvframe = g_Vars.lvframenum;
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return roommtx;
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}
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if (index != -1) {
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room0f16692c(&g_RoomMtxes[index], roomnum);
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}
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roommtx = room0f1669fc();
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room0f1668f0(roommtx, roomnum);
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roommtx->lvframe = g_Vars.lvframenum;
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roommtx->playernum = g_Vars.currentplayernum;
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roommtx->room2 = g_Vars.currentplayer->lastroomforoffset;
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roommtx->somefloat = var8005ef10[0];
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room0f166a6c(&mtx, roomnum);
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mtx00016054(&mtx, &roommtx->mtx);
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return roommtx;
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}
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Gfx *roomPushMtx(Gfx *gdl, s32 roomnum)
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{
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struct roommtx *roommtx = room0f166c20(roomnum);
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gSPMatrix(gdl++, &roommtx->mtx, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
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return gdl;
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}
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struct coord *roomGetPos(s32 room)
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{
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return &g_BgRooms[room].pos;
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}
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void room0f166df0(s32 room, struct coord *globaldrawworldoffset)
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{
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*globaldrawworldoffset = g_BgRooms[room].pos;
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}
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