1/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
2/* If you are missing that file, acquire a complete release at teeworlds.com. */
3
4#include "projectile_data.h"
5
6#include <engine/shared/snapshot.h>
7
8#include <generated/protocol.h>
9
10#include <game/client/prediction/gameworld.h>
11#include <game/collision.h>
12
13static bool UseProjectileExtraInfo(const CNetObj_Projectile *pProj)
14{
15 return pProj->m_VelY >= 0 && (pProj->m_VelY & LEGACYPROJECTILEFLAG_IS_DDNET) != 0;
16}
17
18CProjectileData ExtractProjectileInfo(int NetObjType, const void *pData, CGameWorld *pGameWorld, const CNetObj_EntityEx *pEntEx)
19{
20 CNetObj_Projectile *pProj = (CNetObj_Projectile *)pData;
21
22 if(NetObjType == NETOBJTYPE_DDNETPROJECTILE)
23 {
24 return ExtractProjectileInfoDDNet(pProj: (CNetObj_DDNetProjectile *)pData);
25 }
26 else if(NetObjType == NETOBJTYPE_DDRACEPROJECTILE || (NetObjType == NETOBJTYPE_PROJECTILE && UseProjectileExtraInfo(pProj)))
27 {
28 return ExtractProjectileInfoDDRace(pProj: (CNetObj_DDRaceProjectile *)pData, pGameWorld, pEntEx);
29 }
30
31 CProjectileData Result = {.m_StartPos: vec2(0, 0)};
32 Result.m_StartPos.x = pProj->m_X;
33 Result.m_StartPos.y = pProj->m_Y;
34 Result.m_StartVel.x = pProj->m_VelX / 100.0f;
35 Result.m_StartVel.y = pProj->m_VelY / 100.0f;
36 Result.m_Type = pProj->m_Type;
37 Result.m_StartTick = pProj->m_StartTick;
38 Result.m_ExtraInfo = false;
39 Result.m_Owner = -1;
40 Result.m_TuneZone = pGameWorld && pGameWorld->m_WorldConfig.m_UseTuneZones ? pGameWorld->Collision()->IsTune(Index: pGameWorld->Collision()->GetMapIndex(Pos: Result.m_StartPos)) : 0;
41 Result.m_SwitchNumber = pEntEx ? pEntEx->m_SwitchNumber : 0;
42 return Result;
43}
44
45CProjectileData ExtractProjectileInfoDDRace(const CNetObj_DDRaceProjectile *pProj, CGameWorld *pGameWorld, const CNetObj_EntityEx *pEntEx)
46{
47 CProjectileData Result = {.m_StartPos: vec2(0, 0)};
48
49 Result.m_StartPos.x = pProj->m_X / 100.0f;
50 Result.m_StartPos.y = pProj->m_Y / 100.0f;
51 float Angle = pProj->m_Angle / 1000000.0f;
52 Result.m_StartVel.x = std::sin(x: -Angle);
53 Result.m_StartVel.y = std::cos(x: -Angle);
54 Result.m_Type = pProj->m_Type;
55 Result.m_StartTick = pProj->m_StartTick;
56
57 Result.m_ExtraInfo = true;
58 Result.m_Owner = pProj->m_Data & 255;
59 if(pProj->m_Data & LEGACYPROJECTILEFLAG_NO_OWNER || Result.m_Owner < 0 || Result.m_Owner >= MAX_CLIENTS)
60 {
61 Result.m_Owner = -1;
62 }
63 // LEGACYPROJECTILEFLAG_BOUNCE_HORIZONTAL, LEGACYPROJECTILEFLAG_BOUNCE_VERTICAL
64 Result.m_Bouncing = (pProj->m_Data >> 10) & 3;
65 Result.m_Explosive = pProj->m_Data & LEGACYPROJECTILEFLAG_EXPLOSIVE;
66 Result.m_Freeze = pProj->m_Data & LEGACYPROJECTILEFLAG_FREEZE;
67 Result.m_TuneZone = pGameWorld && pGameWorld->m_WorldConfig.m_UseTuneZones ? pGameWorld->Collision()->IsTune(Index: pGameWorld->Collision()->GetMapIndex(Pos: Result.m_StartPos)) : 0;
68 Result.m_SwitchNumber = pEntEx ? pEntEx->m_SwitchNumber : 0;
69 return Result;
70}
71
72CProjectileData ExtractProjectileInfoDDNet(const CNetObj_DDNetProjectile *pProj)
73{
74 CProjectileData Result = {.m_StartPos: vec2(0, 0)};
75
76 Result.m_StartPos = vec2(pProj->m_X / 100.0f, pProj->m_Y / 100.0f);
77 Result.m_StartVel = pProj->m_Owner < 0 ? vec2(pProj->m_VelX, pProj->m_VelY) / 1e6f : vec2(pProj->m_VelX, pProj->m_VelY);
78
79 if(pProj->m_Flags & PROJECTILEFLAG_NORMALIZE_VEL)
80 {
81 Result.m_StartVel = normalize(v: Result.m_StartVel);
82 }
83
84 Result.m_Type = pProj->m_Type;
85 Result.m_StartTick = pProj->m_StartTick;
86
87 Result.m_ExtraInfo = true;
88 Result.m_Owner = pProj->m_Owner;
89 Result.m_SwitchNumber = pProj->m_SwitchNumber;
90 Result.m_TuneZone = pProj->m_TuneZone;
91
92 Result.m_Bouncing = 0;
93 if(pProj->m_Flags & PROJECTILEFLAG_BOUNCE_HORIZONTAL)
94 {
95 Result.m_Bouncing |= 1;
96 }
97 if(pProj->m_Flags & PROJECTILEFLAG_BOUNCE_VERTICAL)
98 {
99 Result.m_Bouncing |= 2;
100 }
101
102 Result.m_Explosive = pProj->m_Flags & PROJECTILEFLAG_EXPLOSIVE;
103 Result.m_Freeze = pProj->m_Flags & PROJECTILEFLAG_FREEZE;
104
105 return Result;
106}
107
108void DemoObjectRemoveExtraProjectileInfo(CNetObj_Projectile *pProj)
109{
110 if(UseProjectileExtraInfo(pProj))
111 {
112 CProjectileData Data = ExtractProjectileInfo(NetObjType: NETOBJTYPE_PROJECTILE, pData: pProj, pGameWorld: nullptr, pEntEx: nullptr);
113 pProj->m_X = Data.m_StartPos.x;
114 pProj->m_Y = Data.m_StartPos.y;
115 pProj->m_VelX = (int)(Data.m_StartVel.x * 100.0f);
116 pProj->m_VelY = (int)(Data.m_StartVel.y * 100.0f);
117 }
118}
119