this is a simple raycasting engine. to use it right now you need a modded firmware but I’ve been told key presses will work in the next official update
import turtle from math import * import kandinsky draw=False loc=turtle px=float(5.5) py=float(5.5) pa=float(0) fd=float(10) tx=0 fl=False hit=False ex1=[-0.0375, -0.6678, -0.6643, -0.6608, -0.6572, -0.6537, -0.6502, -0.6466, -0.643, -0.6394, -0.6358, -0.6322, -0.6285, -0.6249, -0.6212, -0.6175, -0.6138, -0.6101, -0.6064, -0.6027, -0.5989, -0.5952, -0.5914, -0.5876, -0.5838, -0.58, -0.5762, -0.5723, -0.5685, -0.5646, -0.5607, -0.5569, -0.553, -0.549, -0.5451, -0.5412, -0.5372, -0.5333, -0.5293, -0.5253, -0.5213, -0.5173, -0.5133, -0.5093, -0.5052, -0.5012, -0.4971, -0.4931,-0.0375, 0.7448, 0.7479, 0.751, 0.7541, 0.7572, 0.7602, 0.7632, 0.7663, 0.7693, 0.7723, 0.7752, 0.7782, 0.7811, 0.784, 0.7869, 0.7898, 0.7927, 0.7955, 0.7984, 0.8012, 0.804, 0.8068, 0.8095, 0.8123, 0.815, 0.8177, 0.8204, 0.8231, 0.8257, 0.8283, 0.831, 0.8336, 0.8361, 0.8387, 0.8412, 0.8438, 0.8463, 0.8488, 0.8512, 0.8537, 0.8561, 0.8585, 0.8609, 0.8633, 0.8657, 0.868, 0.8703,-0.0375, 0.6668, 0.6633, 0.6598, 0.6563, 0.6528, 0.6492, 0.6456, 0.642, 0.6384, 0.6348, 0.6312, 0.6275, 0.6239, 0.6202, 0.6165, 0.6128, 0.6091, 0.6054, 0.6017, 0.5979, 0.5942, 0.5904, 0.5866, 0.5828, 0.579, 0.5751, 0.5713, 0.5674, 0.5636, 0.5597, 0.5558, 0.5519, 0.548, 0.5441, 0.5401, 0.5362, 0.5322, 0.5282, 0.5243, 0.5203, 0.5162, 0.5122, 0.5082, 0.5042, 0.5001, 0.496, 0.492,-0.0375, -0.7456, -0.7487, -0.7518, -0.7549, -0.758, -0.761, -0.7641, -0.7671, -0.7701, -0.7731, -0.776, -0.779, -0.7819, -0.7848, -0.7877, -0.7906, -0.7935, -0.7963, -0.7991, -0.8019, -0.8047, -0.8075, -0.8103, -0.813, -0.8157, -0.8184, -0.8211, -0.8238, -0.8264, -0.829, -0.8317, -0.8343, -0.8368, -0.8394, -0.8419, -0.8444, -0.8469, -0.8494, -0.8519, -0.8543, -0.8568, -0.8592, -0.8616, -0.8639, -0.8663, -0.8686, -0.8709] ey1=[0.9993, 0.7444, 0.7475, 0.7506, 0.7537, 0.7567, 0.7598, 0.7628, 0.7659, 0.7689, 0.7719, 0.7748, 0.7778, 0.7807, 0.7836, 0.7865, 0.7894, 0.7923, 0.7952, 0.798, 0.8008, 0.8036, 0.8064, 0.8091, 0.8119, 0.8146, 0.8173, 0.82, 0.8227, 0.8253, 0.828, 0.8306, 0.8332, 0.8358, 0.8384, 0.8409, 0.8434, 0.8459, 0.8484, 0.8509, 0.8534, 0.8558, 0.8582, 0.8606, 0.863, 0.8653, 0.8677, 0.87, 0.8723, 0.8746, 0.8768, 0.8791,0.9993, 0.6673, 0.6638, 0.6603, 0.6568, 0.6532, 0.6497, 0.6461, 0.6425, 0.6389, 0.6353, 0.6317, 0.628, 0.6244, 0.6207, 0.617, 0.6133, 0.6096, 0.6059, 0.6022, 0.5984, 0.5947, 0.5909, 0.5871, 0.5833, 0.5795, 0.5757, 0.5718, 0.568, 0.5641, 0.5602, 0.5563, 0.5524, 0.5485, 0.5446, 0.5407, 0.5367, 0.5327, 0.5288, 0.5248, 0.5208, 0.5168, 0.5128, 0.5087, 0.5047, 0.5006, 0.4966, 0.4925, 0.4884, 0.4843, 0.4802, 0.4761,0.9993, -0.7452, -0.7483, -0.7514, -0.7545, -0.7576, -0.7606, -0.7637, -0.7667, -0.7697, -0.7727, -0.7756, -0.7786, -0.7815, -0.7844, -0.7873, -0.7902, -0.7931, -0.7959, -0.7987, -0.8016, -0.8044, -0.8071, -0.8099, -0.8126, -0.8154, -0.8181, -0.8207, -0.8234, -0.8261, -0.8287, -0.8313, -0.8339, -0.8365, -0.839, -0.8416, -0.8441, -0.8466, -0.8491, -0.8516, -0.854, -0.8564, -0.8589, -0.8612, -0.8636, -0.866, -0.8683, -0.8706, -0.8729, -0.8752, -0.8775, -0.8797,0.9993, -0.6664, -0.6629, -0.6593, -0.6558, -0.6523, -0.6487, -0.6451, -0.6415, -0.6379, -0.6343, -0.6307, -0.6271, -0.6234, -0.6197, -0.616, -0.6123, -0.6086, -0.6049, -0.6012, -0.5974, -0.5936, -0.5899, -0.5861, -0.5823, -0.5785, -0.5746, -0.5708, -0.5669, -0.5631, -0.5592, -0.5553, -0.5514, -0.5475, -0.5435, -0.5396, -0.5356, -0.5317, -0.5277, -0.5237, -0.5197, -0.5157, -0.5117, -0.5076, -0.5036, -0.4995, -0.4955, -0.4914, -0.4873, -0.4832, -0.4791, -0.475] ty=0 h=float(0) loc.goto(5.5,5.5) loc.penup() loc.ht() pi=22/7 ma1 = ['x','x','x','x','x','x','x','x','x','x','x','x','x','x','x','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','x','x','x','x','x','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','x','x','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','x','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','x','.','.','.','x','x', 'x','.','.','.','.','.','.','.','.','.','x','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','x','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','.','.','.','.','.','.','.','.','.','.','.','.','.','.','x', 'x','x','x','x','x','x','x','x','x','x','x','x','x','x','x','x'] while True: for i in range (int(sw)): ex=0 if pa==4.015873015873016: ex=ex4[i] ey=ey4[i] if pa==2.4444444444444446: ex=ex3[i] ey=ey3[i] if pa==0.873015873015873: ex=ex2[i] ey=ey2[i] if pa==-0.6984126984126984: ex=ex1[i] ey=ey1[i] dis=float (0) while hit ==False and dis< fd: dis=dis+0.5 tx=int(px+ex*dis) ty=int(py+ey*dis) if tx<0 or tx>=mx or ty<0 or ty>= my: hit=True else: if(ma1[(tx*mx+ty)]=="x"): hit=True if dis>= fd: hit=True if hit: kandinsky.wait_vblank h=40-(dis*4) kandinsky.fill_rect((i*3),0,3,int(240-(((40-h)/2)*5)),((255-(int(dis*1.2*12.75))),0,0)) draw=True kandinsky.fill_rect(i*3,0,3,int(((((40-h)/2)*5))),(0,0,0)) fl=True k = kandinsky.get_keys() if "up" in k and i==(sw-1): loc.fd(0.1) px=loc.pos()[1] py=loc.pos()[0] if(ma1[int(px-0.1)*mx+int(py-0.1)]=="x"): loc.fd(-0.1) kandinsky.fill_rect(0,0,320,240,(0,0,0)) if "down" in k and i==(sw-1): loc.fd(-0.1) px=loc.pos()[1] py=loc.pos()[0] if(ma1[int(px-0.1)*mx+int(py-0.1)]=="x"): loc.fd(0.1) kandinsky.fill_rect(0,0,320,240,(0,0,0)) if "left" in k and i==(sw-1): loc.lt(-90) radian = (loc.heading()-40)*(pi/180) pa=radian kandinsky.fill_rect(0,0,320,240,(0,0,0)) if "right" in k and i==(sw-1): loc.lt(90) radian = (loc.heading()-40)*(pi/180) pa=radian kandinsky.fill_rect(0,0,320,240,(0,0,0)) hit=False