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
|
local Vec3, Vec4 = require('Vector')()
local Mat3, Mat4 = require('Matrix')()
local Basis = function(M)
local m = Mat3.new()
honey.cglm.mat4.pick3(M, m)
local x0 = honey.cglm.get_value(m, Mat3.index(1,1))
local x1 = honey.cglm.get_value(m, Mat3.index(2,1))
local x2 = honey.cglm.get_value(m, Mat3.index(3,1))
local y0 = honey.cglm.get_value(m, Mat3.index(1,2))
local y1 = honey.cglm.get_value(m, Mat3.index(2,2))
local y2 = honey.cglm.get_value(m, Mat3.index(3,2))
local z0 = honey.cglm.get_value(m, Mat3.index(1,3))
local z1 = honey.cglm.get_value(m, Mat3.index(2,3))
local z2 = honey.cglm.get_value(m, Mat3.index(3,3))
local b = {}
b.x = Vec3.new{x0, x1, x2}
b.y = Vec3.new{y0, y1, y2}
b.z = Vec3.new{z0, z1, z2}
return b
end
local camera = {}
camera.pitch = 0
camera.yaw = 0
camera.sensitivity = 0.1
camera.movement_speed = 1
camera.position = Vec3.new{0,0,-1}
camera.view = Mat4.new()
honey.cglm.mat4.identity(camera.view)
camera.basis = Basis(camera.view)
camera.projection = Mat4.new()
honey.cglm.camera.perspective(
camera.projection,
math.rad(90),
640/480,
0.1,
8192)
function camera:update()
local M = Mat4.new()
honey.cglm.mat4.identity(M)
honey.cglm.affine.rotate(M, Vec3.ZERO, self.basis.x, math.rad(self.pitch))
honey.cglm.affine.rotate(M, Vec3.ZERO, Vec3.Y_UNIT, math.rad(self.yaw))
self.basis = Basis(M)
movement = Vec3.new()
if honey.input.key.is_down(honey.input.key.w) then honey.cglm.vec3.add(movement, self.basis.z, movement) end
if honey.input.key.is_down(honey.input.key.a) then honey.cglm.vec3.add(movement, self.basis.x, movement) end
if honey.input.key.is_down(honey.input.key.s) then honey.cglm.vec3.sub(movement, self.basis.z, movement) end
if honey.input.key.is_down(honey.input.key.d) then honey.cglm.vec3.sub(movement, self.basis.x, movement) end
honey.cglm.set_value(movement, 1, 0)
honey.cglm.vec3.normalize(movement)
honey.cglm.vec3.muls(self.movement_speed, movement, movement)
honey.cglm.vec3.add(self.position, movement, self.position)
honey.cglm.camera.look(self.position, self.basis.z, Vec3.Y_UNIT, self.view)
end
camera.mouse_pos = {}
camera.mouse_pos.x = 0
camera.mouse_pos.y = 0
honey.input.mouse.bind_movement(
function(xpos, ypos)
local dx = xpos - camera.mouse_pos.x
local dy = ypos - camera.mouse_pos.y
camera.mouse_pos = { x=xpos, y=ypos }
camera.pitch = camera.pitch + camera.sensitivity * dy
camera.yaw = camera.yaw - camera.sensitivity * dx
if camera.pitch > 89 then camera.pitch = 89 end
if camera.pitch < -89 then camera.pitch = -89 end
end
)
honey.input.mouse.set_mode(honey.input.mouse.mode.disabled)
return camera
|
