用脚本怎么画出三角形呢？ - Project1

class Bitmap
#--------------------------------------------------------------------------
# ● 描绘直线
# x1，y1，x2，y2：直线两端的坐标
# width：宽度
# color：颜色
#--------------------------------------------------------------------------
def drawline(x1, y1, x2, y2, width, color)
x1 = x1.to_f
y1 = y1.to_f
x2 = x2.to_f
y2 = y2.to_f
width = width.to_f
k = (y2 - y1) / (x2 - x1)
if k.abs > 1
drawline_x(x1, y1, x2, y2, width, color)
else
drawline_y(x1, y1, x2, y2, width, color)
end
end
def drawline_x(x1, y1, x2, y2, width, color)
l = ((x1 - x2) ** 2 + (y1 - y2) ** 2) ** 0.5 * width / (y1 - y2)
length = l.abs * 2
k = (x2 - x1) / (y2 - y1) #x=ky+b
b = x1 - k * y1
if l > 0
for ty in y2.to_i..y1.to_i
tx = ty * k + b
fill_rect(tx - l, ty, length, 1, color)
end
else
for ty in y1.to_i..y2.to_i
tx = ty * k + b
fill_rect(tx + l, ty, length, 1, color)
end
end
end
def drawline_y(x1, y1, x2, y2, width, color)
l = ((x1 - x2) ** 2 + (y1 - y2) ** 2) ** 0.5 * width / (x1 - x2)
height = l.abs * 2
k = (y2 - y1) / (x2 - x1) #y=kx+b
b = y1 - k * x1
if l > 0
for tx in x2.to_i..x1.to_i
ty = tx * k + b
fill_rect(tx, ty - l, 1, height, color)
end
else
for tx in x1.to_i..x2.to_i
ty = tx * k + b
fill_rect(tx, ty + l, 1, height, color)
end
end
end
end
class Window_Try < Window_Base
def initialize
super(0, 0, 544, 416)
refresh
end
def refresh
draw_triangle(0, 0, 128, 0, 234, 240, 1, normal_color)
end
def draw_triangle(x1, y1, x2, y2, x3, y3, width, color)
self.contents.drawline(x1, y1, x2, y2, width, color)
self.contents.drawline(x2, y2, x3, y3, width, color)
self.contents.drawline(x3, y3, x1, y1, width, color)
end
end
class Scene_Try < Scene_Base
def start
@try = Window_Try.new
end
def terminate
@try.dispose
end
def update
@try.update
end
end

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