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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
# frozen_string_literal: true
require 'ruby2d'
require_relative 'lib/camera/camera'
#set width: 700, height: 300
# Use this to add a few extra methods to an Image
module SizableImage
def size
width
end
def size=(size)
self.height *= (size / width)
self.width *= (size / width)
end
end
Window.set(icon: './assets/player.png')
# There is 2 ways you can add objects to be known and controlled by the camera, both do the same thing
@square = Square.new(
x: 100, y: 100,
size: 125,
color: 'random'
)
Camera << @square
25.times do
tempx = (0..1920).to_a.sample
tempy = (0..1080).to_a.sample
tempsize = (25..100).to_a.sample
Camera << Triangle.new(x1: tempx,
y1: tempy,
x2: tempx,
y2: tempy + tempsize,
x3: tempx + tempsize,
y3: tempy + tempsize,
size: (10..50).to_a.sample,
color: 'random')
end
@background = Image.new(
'assets/background.png',
x: 0, y: 0,
width: (1920 * 0.25), height: (1080 * 0.25),
z: -1
)
Camera << @background
@player = Triangle.new(x1: 0,
y1: 0,
x2: 0,
y2: 0 + 25,
x3: 0 + 25,
y3: 0 + 25,
size: (10..50).to_a.sample,
color: 'blue')
Camera << @player
Rectangle.new(
width: 350,
height: 135,
color: 'navy'
)
@ui_pos_cam = Text.new(
'pos: 0,0',
x: 10,
y: 10,
color: 'teal'
)
@ui_pos_ply = Text.new(
'pos: 0,0',
x: 10,
y: 40,
color: 'teal'
)
@ui_zoom = Text.new(
'zoom: 0',
x: 10,
y: 70,
color: 'lime'
)
@ui_rotation = Text.new(
'rotation: 0',
x: 10,
y: 100,
color: 'lime'
)
Rectangle.new(
x: (Window.width - 120),
width: 120,
height: 45,
color: 'navy'
)
@ui_fps = Text.new(
'fps: 60.00',
x: (Window.width - 110),
y: 10,
color: 'teal'
)
# How fast the player can move
@speed = 10
# Initializing
@x_move = 0
@y_move = 0
@cam_x_move = 0
@cam_y_move = 0
@is_follow = true
@zoom_by = 1
@debug1 = 0
@debug2 = 0
@debug4 = 0
@debug3 = 0
on :key do |event|
if event.key == 'a'
@y_move += 0
@x_move += -@speed
end
if event.key == 'd'
@y_move += 0
@x_move += @speed
end
if event.key == 'w'
@y_move += -@speed
@x_move += 0
end
if event.key == 's'
@y_move += @speed
@x_move += 0
end
if event.key == 'j'
@cam_x_move -= @speed
@is_follow = false
end
if event.key == 'l'
@cam_x_move += @speed
@is_follow = false
end
if event.key == 'i'
@cam_y_move -= @speed
@is_follow = false
end
if event.key == 'k'
@cam_y_move += @speed
@is_follow = false
end
end
on :key_down do |event|
if event.key == 'f'
Camera.debug_x += 2
end
if event.key == 'h'
Camera.debug_x -= 2
end
if event.key == 't'
Camera.debug_y += 2
end
if event.key == 'g'
Camera.debug_y -= 2
end
end
on :key do |event|
if event.key == 'z'
@zoom_by = 1.015
end
if event.key == 'x'
@zoom_by = 0.985
end
if event.key == 'c'
#Camera.zoom_to 1
end
if event.key == 'm'
#Camera.move_to(-10,-10)
end
if event.key == 'q'
Camera.angle -= 2
end
if event.key == 'e'
Camera.angle += 2
end
if event.key == 'r'
Camera.angle = 0.0
Camera.zoom = 1.0
end
end
update do
@player.x += @x_move
@player.y += @y_move
@x_move = 0
@y_move = 0
Camera.zoom *= @zoom_by
if @is_follow
Camera.x = @player.x
Camera.y = @player.y
else
angle = Camera.angle * (Math::PI / 180)
Camera.x += (@cam_x_move * Math.cos(-angle)) - (@cam_y_move * Math.sin(-angle))
Camera.y += (@cam_x_move * Math.sin(-angle)) + (@cam_y_move * Math.cos(-angle))
end
@cam_x_move = 0
@cam_y_move = 0
@zoom_by = 1
@ui_pos_cam.text = "Camera Position: #{Camera.x.round(1)}, #{Camera.y.round(1)}"
@ui_pos_ply.text = "Player Position: #{@player.x.round(1)}, #{@player.y.round(1)}"
@ui_zoom.text = "Zoom: #{Camera.zoom.round(3)}"
@ui_fps.text = "FPS: #{Window.fps.round(2)}"
@ui_rotation.text = "Angle: #{Camera.angle}"
puts "Debug X"
puts Camera.debug_x
puts "Debug Y"
puts Camera.debug_y
Camera.update
end
show
|