79 lines
2.0 KiB
Lua
79 lines
2.0 KiB
Lua
-- called every frame, with constant delta time
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local capture = false
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local trig = require "trig"
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local Vector3l = require "vector3"
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local function Vector3(x, y, z)
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if y == nil then
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return {x = x, y = x, z = x}
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end
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return {x = x, y = y, z = z}
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end
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local rot = 0
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local rot_spd = 0.05
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local spd = 0.07
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local pos = Vector3(0)
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local function Vector2(x, y)
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if y == nil then
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return {x = x, y = x}
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end
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return {x = x, y = y}
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end
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local function wrap(value, min, max)
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local range = max - min
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if value == 0 then
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return min
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end
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local result = value - (range * math.floor((value - min) / range))
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if result == max then
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return min
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end
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return result
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end
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local function b2n(value)
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return value and 1 or 0
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end
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function game_tick()
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-- ctx.initialization_needed is true first frame and every time dynamic reload is performed
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if ctx.initialization_needed then
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-- ctx.udata persists on reload
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ctx.udata = {}
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end
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ctx.mouse_capture = capture
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input_action{name="quit", control="SPACE"}
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input_action{name = "left", control = "A"}
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input_action{name = "right", control = "D"}
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input_action{name = "forward", control = "W"}
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input_action{name = "back", control = "S"}
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if input_action_just_pressed{name = "quit"} then
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if not capture then
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capture = true
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else
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capture = false
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end
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end
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local dir = draw_camera_from_principal_axes{position = pos, yaw = rot}.direction
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dir.y = 0
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dir = trig.v3_normalized(dir)
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local rot_d = b2n(input_action_pressed{name = "right"}) - b2n(input_action_pressed{name = "left"})
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rot = rot + rot_d * rot_spd
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local mov_d = b2n(input_action_pressed{name = "forward"}) - b2n(input_action_pressed{name = "back"})
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pos = trig.v3_add(pos, trig.v3_mult(dir, spd * mov_d))
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draw_billboard{position = Vector3(5, 0, 0), size = Vector2(1, 1), texture = "images/duck.png"}
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end
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