1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
#include "railloco.h"
#include "gfx/gl/shader.h"
#include "gfx/gl/transform.h"
#include "gfx/models/obj.h"
#include "gfx/models/texture.h"
#include <algorithm>
#include <array>
#include <cache.h>
#include <filesystem>
#include <glm/glm.hpp>
#include <iterator>
#include <lib/resource.h>
#include <maths.h>
#include <memory>
#include <set>
#include <utility>
#include <vector>
void
RailVehicle::render(const Shader & shader) const
{
shader.setModel(location.GetModel());
texture->Bind();
bodyMesh->Draw();
for (const auto & bogey : bogeys) {
shader.setModel(bogey.location.GetModel());
bogey.mesh->Draw();
}
}
void
RailLoco::move(TickDuration dur)
{
linkDist += dur.count() * speed;
auto curLink {linkHist.getCurrent()};
while (linkDist > curLink.first->length) {
location = curLink.first->positionAt(curLink.first->length, curLink.second);
const auto & nexts {curLink.first->nexts[1 - curLink.second]};
const auto next = std::find_if(nexts.begin(), nexts.end(), [ang = location.GetRot().y](const Link::Next & n) {
return std::abs(normalize(n.first.lock()->ends[n.second].second - ang)) < 0.1F;
});
if (next != nexts.end()) {
linkDist -= curLink.first->length;
curLink = linkHist.add(next->first, next->second);
}
else {
linkDist = curLink.first->length;
speed = 0;
}
}
}
Transform
RailLoco::getBogeyPosition(float linkDist, float dist) const
{
float b2linkDist {};
const auto b2Link = linkHist.getAt(dist - linkDist, &b2linkDist);
return b2Link.first->positionAt(b2linkDist, b2Link.second);
}
void
RailLoco::updateRailVehiclePosition(RailVehicle * w, float trailBy) const
{
const auto overhang {(w->length - w->wheelBase) / 2};
const auto & b1Pos = w->bogeys[0].location = getBogeyPosition(linkDist, trailBy += overhang);
const auto & b2Pos = w->bogeys[1].location = getBogeyPosition(linkDist, trailBy + wheelBase);
const auto diff = glm::normalize(b2Pos.GetPos() - b1Pos.GetPos());
w->location.GetPos() = (b1Pos.GetPos() + b2Pos.GetPos()) / 2.F;
w->location.GetRot() = {-vector_pitch(diff), vector_yaw(diff), 0};
}
void
RailLoco::tick(TickDuration dur)
{
move(dur);
updateRailVehiclePosition(this, 0);
updateWagons();
}
void
RailLoco::updateWagons() const
{
// Drag wagons
float trailBy {length};
for (const auto & wagon : wagons) {
const auto w {wagon.lock()};
updateRailVehiclePosition(w.get(), trailBy);
trailBy += w->length;
}
}
void RailWagon::tick(TickDuration) { }
void
bogeyOffset(ObjParser & o)
{
// offset bogey positions so they can be set directly
for (int b = 1; b < 3; b++) { // bogey object index
std::set<std::pair<float, int>> vertexIds;
for (const auto & face : o.objects[b].second) {
for (const auto & faceElement : face) {
vertexIds.emplace(o.vertices[faceElement.x - 1].z, faceElement.x - 1);
}
}
auto offset = (vertexIds.begin()->first + vertexIds.rbegin()->first) / 2;
for (const auto & v : vertexIds) {
o.vertices[v.second].z -= offset;
}
}
}
Brush47::Brush47(const LinkPtr & l) : RailLoco(l, 0)
{
ObjParser o {Resource::mapPath("brush47.obj")};
bogeyOffset(o);
const auto m = o.createMeshes();
bodyMesh = m[0].second;
bogeys[0].mesh = m[1].second;
bogeys[1].mesh = m[2].second;
texture = Texture::cachedTexture.get(Resource::mapPath("brush47.png"));
wheelBase = 12.F;
length = 20.F;
linkDist = wheelBase;
}
Brush47Wagon::Brush47Wagon(const LinkPtr & l) : RailWagon(l, 0)
{
ObjParser o {Resource::mapPath("brush47.obj")};
bogeyOffset(o);
const auto m = o.createMeshes();
bodyMesh = m[0].second;
bogeys[0].mesh = m[1].second;
bogeys[1].mesh = m[2].second;
texture = Texture::cachedTexture.get(Resource::mapPath("brush47.png"));
wheelBase = 12.F;
length = 20.F;
linkDist = wheelBase;
}
|
