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annotate src/sim.tp @ 24:8435bf0360f8

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author William Morgan <bill@mrgn.org>
date Sat, 14 Jul 2012 14:38:50 -0700
parents 75a005b210c5 be6d1cf7b7d7
children a224dc43877f
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1 {
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2 true <- #{
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3 if <- :self trueblock {
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4 trueblock:
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5 }
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6 if:else <- :self trueblock :elseblock {
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7 trueblock:
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8 }
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9 }
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10
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11 false <- #{
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12 if <- :self trueblock {
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13 self
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14 }
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15 if:else <- :self trueblock :elseblock {
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16 elseblock:
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17 }
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18 }
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19
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20 eachbyte <- :string action {
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21 strLen <- string byte_length:
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22 index <- 0
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23 while: {index < strLen} do: {
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24 element <- (string byte: index)
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25 action: index element
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26 index <- index + 1
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27 }
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28 }
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29
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30 makeCellTypes <- {
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31 allid <- #[]
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32 allobj <- #[]
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33 new <- :idstr {
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34 ret <- #{
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35 id <- (idstr byte: 0)
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36 isrobot <- { false }
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37 }
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38 allobj append: ret
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39 allid append: (ret id)
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40 ret
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41 }
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42 #{
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43 find <- :id {
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44 if: id = ("R" byte: 0) { robot: } else: {
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45 index <- 0
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46 while: {
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47 if: index < (allid length) {
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48 (allid get: index) != id
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49 }
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50 } do: {
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51 index <- index + 1
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52 }
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53 if: index < (allid length) {
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54 allobj get: index
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55 } else: {
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56 empty
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57 }
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58 }
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59 }
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60 wall <- new: "#"
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61 empty <- new: " "
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62 earth <- new: "."
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63 rock <- new: "*"
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64 lambda <- new: "\\"
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65 closedlift <- new: "L"
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66 openlift <- new: "O"
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67 newline <- new: "\n"
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68 robot <- {
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69 #{
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70 id <- ("R" byte: 0)
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71 isrobot <- { true }
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72 heldBreath <- 0
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73 x <- 0
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74 y <- 0
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75 move <- :cmd mine {
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76 writeMove <- :xPrime yPrime {
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77 mine setCell: xPrime yPrime self
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78 mine setCell: x y empty
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79 x!: xPrime
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80 y!: yPrime
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81 }
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82 writeMove: x (y - 1)
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83 }
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84 }
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85 }
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86 }
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87 }
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88 ttrue <- true
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89 tfalse <- false
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90 #{
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91
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92 // utilities
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93 true <- ttrue
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94
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95 false <- tfalse
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96
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97 // end utilities
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98
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99
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100 cellTypes <- makeCellTypes:
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101
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102 state <- #{
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103 new <- :in_grid in_width in_height {
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104 nextGrid <- #[]
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105 robot <- false
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106 endreached <- false
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107 foreach: in_grid :index el{
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108 nextGrid append: el
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109 if: (el isrobot) {
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110 robot <- el
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111 updatePos: robot index
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112 } else: { true }
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113 }
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114 #{
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115 grid <- in_grid
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116 width <- in_width
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117 height <- in_height
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118 calcIndex <- :x y { x + y * width }
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119 calcX <- :index {index % width}
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120 calcY <- :index {index / width}
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121 setCell <- :x y val {
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122 grid set: (calcIndex: x y) val
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123 }
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124 getCell <- :x y {
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125 grid get: (calcIndex: x y)
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126 }
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127 updatePos <- :obj Index {
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128 obj x! (calcX: Index)
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129 obj y! (calcY: Index)
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130 }
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131 water <- 0
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132 flooding <- 0
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133 waterproof <- 10
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134 collected <- 0
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135 moves <- 0
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136 ended <- {endreached}
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137 doUpdate <- {
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138 true
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139 }
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140 advance <- :roboCmd {
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141 endreached <- roboCmd = "A"
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142 robot move: roboCmd self
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143 moves <- moves + 1
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144 doUpdate:
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145 if: debugToStdErr {
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146 grid foreach: :index value {
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147 os write: 2 (string: (value id))
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148 }
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149 }
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150 self
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151 }
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152
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153 }
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154 }
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155 fromStr <- :str {
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156
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157 strLen <- str byte_length:
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158 maxCol <- 0
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159 col <- 0
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160 rows <- 0
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161 nl <- (cellTypes newline) id
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162 blank <- cellTypes empty
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163 eachbyte: str :index element {
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164 if: element = nl {
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165 maxCol <- if: col > maxCol {col} else: {maxCol}
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166 col <- 0
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167 rows <- rows + 1
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168 } else: {
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169 col <- col + 1
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170 }
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171 }
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172
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173 grid <- #[]
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174 eachbyte: str :index element {
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175 if: element = nl {
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176 // add spaces
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177 while: { col < maxCol } do: {
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178 grid append: blank
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179 col <- col + 1
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180 }
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181 col <- 0
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182 } else: {
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183 grid append: (cellTypes find: element)
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184 col = col + 1
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185 }
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186 }
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187 new: grid maxCol rows
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188 }
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189 }
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190
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191 testMoves <- {
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192 myStep <- 0
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193 {
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194 myStep <- myStep + 1
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195 if: myStep > 5 {"A"} else: {"W"}
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196 }
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197 }
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198
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199 readFd <- :fd {
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200 if: fd < 0 { "" } else: {
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201 cur <- ""
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202 part <- ""
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203 while: {
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204 part <- os read: fd 128
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205 part != ""
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206 } do: {
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207 cur <- cur . part
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208 }
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209 cur
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210 }
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211 }
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212
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213 readFile <- :path {
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214 fd <- os open: path (os O_RDONLY)
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215 out <- readFd: fd
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216 os close: fd
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217 out
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218 }
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219
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220 getMove <- {
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221 os read: 0 1
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222 }
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223
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224 debugToStdErr <- true
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225 main <- :args {
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226 if: (args length) < 2 {
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227 print: "usage: sim filename\n"
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228 } else: {
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229 text <- readFile: (args get: 1)
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230 print: text
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231 os close: 1
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232 simState <- state fromStr: text
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233 while: { if: (simState ended) {false} else: {true} } do: {
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234 simState advance: (getMove: )
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235 }
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236 }
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237 }
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238
3
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239 }
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240 }