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local Vector = require('Vector')
local Matrix = require('Matrix')
local camera = {}
camera.pitch = 0
camera.yaw = 0
camera.sensitivity = 0.1
camera.movement_speed = 1
camera.position = Vector.Vec3.new{0,0,-1}
camera.view = Matrix.Mat4.eye()
camera.basis = camera.view:basis()
camera.projection = Matrix.Mat4.perspective(math.rad(90),
640/480,
0.1,
8192)
function camera:update(dt)
local M = Matrix.Mat4.eye()
M:rotate(Vector.Vec3.ZERO, Vector.Vec3.Y_UNIT, math.rad(self.yaw))
M:rotate(Vector.Vec3.ZERO, Vector.Vec3.X_UNIT, math.rad(self.pitch))
self.basis = M:basis()
movement = Vector.Vec3.new()
if honey.input.key.is_down(honey.input.key.w) then
movement:add(self.basis.z, movement)
end
if honey.input.key.is_down(honey.input.key.a) then
movement:add(self.basis.x, movement)
end
if honey.input.key.is_down(honey.input.key.s) then
movement:sub(self.basis.z, movement)
end
if honey.input.key.is_down(honey.input.key.d) then
movement:sub(self.basis.x, movement)
end
movement:setAt(1, 0)
movement:normalize()
if honey.input.key.is_down(honey.input.key.left_shift) then
movement:add(Vector.Vec3.Y_UNIT, movement)
end
if honey.input.key.is_down(honey.input.key.left_control) then
movement:sub(Vector.Vec3.Y_UNIT, movement)
end
movement:muls(self.movement_speed*dt, movement)
self.position:add(movement, self.position)
Matrix.Mat4.look(self.position, self.basis.z, Vector.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
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