113 lines
3.4 KiB
Python
113 lines
3.4 KiB
Python
#
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# Code under the MIT license by Alexander R. Pruss
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#
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import sys
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import time
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import mcpi.minecraft as minecraft
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ALIGN_LEFT = 0
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ALIGN_RIGHT = 1
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ALIGN_CENTER = 2
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# vectors must be minecraft.Vec3
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def drawGlyph(mc, pos, forwardVec, upVec, glyph, foreground, background=None, buffer=None):
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bitmap = glyph[3]
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height = len(bitmap)
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width = glyph[0]
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offset = glyph[1]
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delta = glyph[2]
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for i in range(height):
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pixelPos = pos + upVec*(height-1-i) + forwardVec*offset
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for j in range(width):
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if foreground is not None and 0 != bitmap[i] & (1 << (width-1-j)):
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if buffer is not None:
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buffer[(pixelPos.x,pixelPos.y,pixelPos.z)] = foreground
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else:
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mc.setBlock(pixelPos, foreground)
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elif background is not None and 0 == bitmap[i] & (1 << (width-1-j)):
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if buffer is not None:
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buffer[(pixelPos.x,pixelPos.y,pixelPos.z)] = background
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else:
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mc.setBlock(pixelPos, background)
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pixelPos += forwardVec
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return pos + forwardVec*delta
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def textLength(font, text):
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l = 0
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for value in text:
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try:
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glyph = font[value]
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except:
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glyph = font[32]
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l += glyph[2]
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return l
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def drawText(mc, font, pos, forwardVec, upVec, text, foreground=None, background=None, align=ALIGN_LEFT, buffer=None):
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try:
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text = bytearray(text.encode("cp1252"))
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except:
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text = bytearray(text.encode("iso8859_1"))
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pixelPos = pos.clone()
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height = len(font[32][3])
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lines = text.split(b'\n')
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pixelPos += upVec * ((len(lines)-1)* height)
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lineStart = pixelPos.clone()
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for line in lines:
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pixelPos = lineStart.clone()
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if align == ALIGN_RIGHT:
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pixelPos -= forwardVec * textLength(font, line)
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elif align == ALIGN_CENTER:
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pixelPos -= forwardVec * (0.5 * textLength(font, line))
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for value in line:
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try:
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glyph = font[value]
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except:
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glyph = font[32]
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pixelPos = drawGlyph(mc, pixelPos, forwardVec, upVec, glyph, foreground, background, buffer)
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lineStart += upVec * (-height)
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return pixelPos
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def angleToTextDirectionCardinal(angle):
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return angleToTextDirection(90 * round(angle/90))
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def angleToTextDirection(angle):
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direction = int(round((angle % 360) / 45))
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if direction == 0:
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return minecraft.Vec3(-1,0,0)
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elif direction == 1:
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return minecraft.Vec3(-1,0,-1)
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elif direction == 2:
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return minecraft.Vec3(0,0,-1)
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elif direction == 3:
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return minecraft.Vec3(1,0,-1)
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elif direction == 4:
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return minecraft.Vec3(1,0,0)
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elif direction == 5:
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return minecraft.Vec3(1,0,1)
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elif direction == 6:
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return minecraft.Vec3(0,0,1)
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else:
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return minecraft.Vec3(-1,0,1)
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if __name__ == '__main__':
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import fonts
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import mcpi.block as block
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mc = minecraft.Minecraft()
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pos = mc.player.getPos()
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forward = angleToTextDirection(mc.player.getRotation())
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foreground = 169 # sea lantern
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background = block.OBSIDIAN
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if len(sys.argv) <= 1:
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text = "Hello, world!\nWelcome to Minecraft."
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else:
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del sys.argv[0]
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text = " ".join(sys.argv)
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drawText(mc, fonts.FONTS['metrix7pt'], pos, forward, minecraft.Vec3(0,1,0), text, foreground, background, align=ALIGN_RIGHT)
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