41 lines
874 B
Lua
41 lines
874 B
Lua
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local Vector3 = require "types.vector3"
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local util = require "util"
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local TEXTURE = "images/tongue.png"
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local Feed = {
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position = {},
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direction = {},
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velocity = {},
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landed = false,
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speed = 0.15,
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}
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Feed.__index = Feed
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function Feed.new(p_position, p_direction)
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local f = util.shallow_copy(Feed)
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f.position = p_position:copy()
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f.direction = p_direction:copy()
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f.velocity = f.direction * f.speed
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f.velocity.y = 0.1
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return setmetatable(f, Feed)
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end
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function Feed:tick(ctx)
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if not self.landed then
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-- gravity
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self.velocity.y = math.max(self.velocity.y - 0.02, -0.2)
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self.position = self.position + self.velocity
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end
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if self.position.y <= 0.2 and not self.landed then
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self.position.y = 0.2
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self.landed = true
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end
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draw_billboard{position = self.position, texture = TEXTURE, size = Vector3(0.2, 0.2)}
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end
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return Feed
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