generated from mwc/project_drawing
23e57c7c6c
I had a lot of fun creating the animation of walking penguins. I initially didn't understand how the frames worked but reading the source code helped me a lot. While creating an animation I realized that I needed to edit my static drawing functions. I still need to edit them to firther my animation. For some strange reason when running my animation, i get the background and i need to hit enter before the animation starts playing. I don't understand why this occurs. Is it something I did or is that just how it runs? Commit 1: Created a static image of a penguin on an iceberg I was struggling how to draw an oval for my penguin. I needed to look up videos/read up how to do it. I also had to look up how to set the size of the image. I found it really difficult to just start the penguin, but once I got the shapes I felt more comfortable. Commit 2: Created an iteration of penguins Created a function penguins which iterates the drawing of the penguin until the end of the screen. I needed to do some debugging for this to work, I managed to solve it, but I don't know how I fixed the issue. For some strange reason it's drawing the first penguin twice and I don't know why. I need to figure that out. This part was much easier than drawing out the shapes.
86 lines
2.3 KiB
Python
86 lines
2.3 KiB
Python
# drawing.py
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# ----------
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# By Ilma Buraira
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#
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# Draws the image of penguins on an iceberg
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# (Briefly describe what this program does.)
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from turtle import *
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from math import cos, sin, pi, radians
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# ---------- Setup ----------
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setup(1000, 600)
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screen = Screen()
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screen.title("Penguin on Ice (with real ovals)")
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screen.bgcolor("white")
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screen.tracer(0)
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pensize(3)
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pencolor("black")
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# ---------- Helpers ----------
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def move_to(x, y):
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penup(); goto(x, y); pendown()
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def filled_rect(x1, y1, x2, y2, fill, outline="black"):
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pencolor(outline)
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fillcolor(fill)
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move_to(x1, y1)
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begin_fill()
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goto(x2, y1)
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goto(x2, y2)
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goto(x1, y2)
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goto(x1, y1)
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end_fill()
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def draw_oval(cx, cy, rx, ry, tilt=0, fill=None, outline=None, steps=180, pen=None):
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"""Parametric ellipse; steps controls smoothness."""
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ang = radians(tilt)
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def R(x, y): # rotate (x,y) by tilt
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return (x*cos(ang) - y*sin(ang), x*sin(ang) + y*cos(ang))
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pensize(pen if pen else 3)
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pencolor(outline if outline else "")
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fillcolor(fill if fill else "")
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move_to(cx + rx, cy) # start at angle 0
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if fill:
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begin_fill()
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for i in range(1, steps + 1):
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theta = 2*pi*i/steps
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x, y = rx*cos(theta), ry*sin(theta)
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xr, yr = R(x, y)
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goto(cx + xr, cy + yr)
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if fill:
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end_fill()
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def poly(points, fill=None):
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if fill: fillcolor(fill); begin_fill()
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move_to(*points[0])
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for p in points[1:]:
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goto(*p)
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goto(*points[0])
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if fill: end_fill()
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def right_triangle(ax, ay, leg1, leg2, angle=0, fill=None):
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"""Right angle at (ax, ay). leg1 along 'angle' degrees, leg2 perpendicular."""
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a = radians(angle)
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B = (ax + leg1*cos(a), ay + leg1*sin(a)) # along angle
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C = (ax - leg2*sin(a), ay + leg2*cos(a)) # 90° to the left
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poly([(ax, ay), B, C], fill=fill)
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# ---------- Scene ----------
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# Ocean (bottom half)
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filled_rect(-500, -100, 500, -300, fill="#3d44c6", outline="#3d44c6")
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# Iceberg (white with light gray outline)
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pensize(4)
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filled_rect(-500, -60, 120, -150, fill="white", outline="#7f7f7f")
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def background():
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filled_rect(-500, -100, 500, -300, fill="#3d44c6", outline="#3d44c6")
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# Iceberg (white with light gray outline)
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pensize(4)
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filled_rect(-500, -60, 120, -150, fill="white", outline="#7f7f7f")
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