66 lines
No EOL
1.9 KiB
Lua
66 lines
No EOL
1.9 KiB
Lua
local lg = love.graphics
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local function make_player(x, y, width, height, screen)
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local player = { position={ x=x, y=y, theta=-math.pi / 2 }, width=width, height=height, screen=screen }
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player.draw = function(self)
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local w, h = self.width / 2, self.height / 2
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lg.push()
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lg.setColor(0, 0, 0)
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lg.translate(self.position.x, self.position.y)
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lg.rotate(self.position.theta)
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lg.polygon("fill", -w,-h, -w,h, w,0)
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lg.pop()
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end
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player.translate = function(self, amount)
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local w, h = self.width / 2, self.height / 2
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local new_x = self.position.x + (amount * math.cos(self.position.theta))
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local new_y = self.position.y + (amount * math.sin(self.position.theta))
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if new_x + w > self.screen.width then new_x = self.screen.width - w end
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if new_x - w < 0 then new_x = w end
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if new_y + h > self.screen.height then new_y = self.screen.height - h end
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if new_y - h < 0 then new_y = h end
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self.position.x = new_x
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self.position.y = new_y
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end
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player.rotate = function(self, degrees)
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local radians = math.rad(degrees)
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local new_theta = self.position.theta + radians
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if new_theta < 0 then new_theta = new_theta + (2 * math.pi) end
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if new_theta > 2 * math.pi then new_theta = new_theta - (2 * math.pi) end
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self.position.theta = new_theta
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end
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return player
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end
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local screen = { width=400, height=240 }
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local player = make_player(screen.width / 2, screen.height / 2, 10, 10, screen)
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function love.load()
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love.window.setMode(screen.width, screen.height)
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end
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function love.update(dt)
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if love.keyboard.isDown("w") then
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player:translate(1)
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end
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if love.keyboard.isDown("s") then
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player:translate(-1)
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end
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if love.keyboard.isDown("d") then
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player:rotate(5)
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end
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if love.keyboard.isDown("a") then
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player:rotate(-5)
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end
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end
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function love.draw()
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lg.setColor(1, 1, 1)
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lg.rectangle("fill", 0, 0, screen.width, screen.height)
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player:draw()
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end |