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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
require 'ruby2d'
require 'ruby2d/camera'
$colors = ['blue', 'teal', 'green', 'lime',
'yellow', 'orange', 'red', 'fuchsia']
class DebugLines
class <<self
def [](index)
data[index] ||= Camera::Line.new(color: 'red', z: 99, width: 5)
end
def data
@data ||= []
end
end
end
sv1 = {x1: 275.0 - 275.0, y1: 175.0 - 175.0,
x2: 375.0 - 275.0, y2: 225.0 - 175.0,
x3: 300.0 - 275.0, y3: 350.0 - 175.0,
x4: 250.0 - 275.0, y4: 250.0 - 175.0}
sv2 = {x1: 200.0, y1: 100.0,
x2: 200.0, y2: 200.0,
x3: 100.0, y3: 200.0,
x4: 100.0, y4: 100.0}
s1 = Camera::Quad.new(
**sv1,
color: 'aqua',
z: 10
)
s2 = Camera::Quad.new(
**sv2,
color: 'olive',
z: 10
)
def build_inverted_edges(shape)
edges = []
shape.each_with_index do |vertex_start, index|
if index == shape.length - 1
vertex_end = shape[0]
else
vertex_end = shape[index + 1]
end
edges.push [-vertex_end[1] + vertex_start[1],
-vertex_end[0] + vertex_start[0]]
end
edges
end
def vecDotProd(a,b)
return (a[0] * b[0]) + (a[1] * b[1])
end
def hitbox_check(shape_a, shape_b)
inverted = build_inverted_edges(shape_b)
inverted.concat(build_inverted_edges(shape_a))
pp inverted if $i == 0
amax = amin = bmin = bmax = nil
inverted.each_with_index do |line, line_index|
amin = vecDotProd(shape_a.first, line)
amax = vecDotProd(shape_a.first, line)
bmin = vecDotProd(shape_b.first, line)
bmax = vecDotProd(shape_b.first, line)
shape_a.each_with_index do |vertex, vertex_index|
dot = vecDotProd(vertex, line)
if dot > amax
amax = dot
elsif dot < amin
amin = dot
end
end
shape_b.each_with_index do |vertex, vertex_index|
dot = vecDotProd(vertex, line)
if dot > bmax
bmax = dot
elsif dot < bmin
bmin = dot
end
end
if line_index < shape_a.length
DebugLines[line_index].x1 = shape_a[line_index][0]
DebugLines[line_index].y1 = shape_a[line_index][1]
if shape_a[line_index].nil?
DebugLines[line_index].x2 = shape_a[line_index + 1][0]
DebugLines[line_index].y2 = shape_a[line_index + 1][1]
else
DebugLines[line_index].x2 = shape_a[0][0]
DebugLines[line_index].y2 = shape_a[0][1]
end
else
DebugLines[line_index].x1 = shape_b[line_index - shape_a.length][0]
DebugLines[line_index].y1 = shape_b[line_index - shape_a.length][1]
if shape_a[line_index - shape_a.length + 1].nil?
DebugLines[line_index].x2 = shape_b[0][0]
DebugLines[line_index].y2 = shape_b[0][1]
else
DebugLines[line_index].x2 = shape_b[line_index - shape_a.length + 1][0]
DebugLines[line_index].y2 = shape_b[line_index - shape_a.length + 1][1]
end
end
DebugLines[line_index].color = $colors[line_index % $colors.length]
if $i == 0
puts
puts $colors[line_index % $colors.length]
puts line_index
puts "x1 #{DebugLines[line_index].x1}"
puts "y1 #{DebugLines[line_index].y1}"
puts "x2 #{DebugLines[line_index].x2}"
puts "y2 #{DebugLines[line_index].y2}"
puts "(((#{amin} < #{bmax}) && (#{amin} > #{bmin})) || ((#{bmin} < #{amax}) && (#{bmin} > #{amin})))"
end
if (((amin <= bmax) && (amin >= bmin)) || ((bmin <= amax) && (bmin >= amin)))
DebugLines[line_index].color.a = 0.2# = 'red'
#next
else
DebugLines[line_index].color.a = 1.0# = 'green'
#return false
end
tempx1 = DebugLines[line_index].x1
tempx2 = DebugLines[line_index].x2
tempy1 = DebugLines[line_index].y1
tempy2 = DebugLines[line_index].y2
DebugLines[line_index].x1 = (tempx1 *(1+1000)/2) + (tempx2 * (1-1000)/2)
DebugLines[line_index].y1 = (tempy1 *(1+1000)/2) + (tempy2 * (1-1000)/2)
DebugLines[line_index].x2 = (tempx2 *(1+1000)/2) + (tempx1 * (1-1000)/2)
DebugLines[line_index].y2 = (tempy2 *(1+1000)/2) + (tempy1 * (1-1000)/2)
end
true
end
#puts "should be false: #{hitbox(@sqr1, @tri1)}"
#puts "should be true: #{hitbox(@sqr2, @tri2)}"
on :key_held do |event|
if event.key == 'w'
Camera.y -= 5
end
if event.key == 's'
Camera.y += 5
end
if event.key == 'a'
Camera.x -= 5
end
if event.key == 'd'
Camera.x += 5
end
end
$i = 0
#$line = Camera::Line.new(color: 'red',
# width: 5, z: 99)
update do
$i += 1
$i %= 5
s1.x = Camera.coordinate_to_worldspace(get(:mouse_x),0)[0]
s1.y = Camera.coordinate_to_worldspace(0, get(:mouse_y))[1]
$x = s1.x
$y = s1.y
a = hitbox_check(
[[s2.x1, s2.y1],
[s2.x2, s2.y2],
[s2.x3, s2.y3],
[s2.x4, s2.y4]],
[[s1.x1 + s1.x, s1.y1 + s1.y],
[s1.x2 + s1.x, s1.y2 + s1.y],
[s1.x3 + s1.x, s1.y3 + s1.y],
[s1.x4 + s1.x, s1.y4 + s1.y]],
)
if a
#s1.color = 'orange'
else
s1.color = 'aqua'
end
if $i == 0
pp [[s2.x1, s2.y1],
[s2.x2, s2.y2],
[s2.x3, s2.y3],
[s2.x4, s2.y4]]
pp [[s1.x1 + s1.x, s1.y1 + s1.y],
[s1.x2 + s1.x, s1.y2 + s1.y],
[s1.x3 + s1.x, s1.y3 + s1.y],
[s1.x4 + s1.x, s1.y4 + s1.y]]
puts a
end
end
show
|
