hello-lvera.lua(文件已创建)
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| 1 | + | local min, max, huge = math.min, math.max, math.huge | |
| 2 | + | local machine = {state = {}} | |
| 3 | + | ||
| 4 | + | machine.counters = { | |
| 5 | + | ["run main loop"] = 1, | |
| 6 | + | ["show message"] = 0, | |
| 7 | + | ["@step timer"] = 0, | |
| 8 | + | ["present current frame"] = 0, | |
| 9 | + | ["sleep for 1ms"] = 0, | |
| 10 | + | ["run current frame"] = 0, | |
| 11 | + | ["@clear screen"] = 0, | |
| 12 | + | ["@exit code"] = 0, | |
| 13 | + | ["@present"] = 0, | |
| 14 | + | ["@sleep"] = 0, | |
| 15 | + | ["@ms"] = 0, | |
| 16 | + | ["@print hello from vera"] = 0, | |
| 17 | + | ["@poll inputs"] = 0, | |
| 18 | + | ["next cycle"] = 0, | |
| 19 | + | ["poll inputs"] = 0, | |
| 20 | + | ["@quit love"] = 0, | |
| 21 | + | ["@quit"] = 0, | |
| 22 | + | ["step timer"] = 0, | |
| 23 | + | ["clear the screen"] = 0, | |
| 24 | + | } | |
| 25 | + | ||
| 26 | + | machine.state = { | |
| 27 | + | } | |
| 28 | + | ||
| 29 | + | function machine:on_poll_inputs(counters) | |
| 30 | + | end | |
| 31 | + | ||
| 32 | + | function machine:on_quit_love(counters) | |
| 33 | + | end | |
| 34 | + | ||
| 35 | + | function machine:on_step_timer(counters) | |
| 36 | + | end | |
| 37 | + | ||
| 38 | + | function machine:on_clear_screen(counters) | |
| 39 | + | end | |
| 40 | + | ||
| 41 | + | function machine:on_present(counters) | |
| 42 | + | end | |
| 43 | + | ||
| 44 | + | function machine:on_sleep(counters, sleep) | |
| 45 | + | end | |
| 46 | + | ||
| 47 | + | function machine:on_hello_from_vera(counters) | |
| 48 | + | end | |
| 49 | + | ||
| 50 | + | function match(self, counters) | |
| 51 | + | if counters["@poll inputs"] > 0 then | |
| 52 | + | self:on_poll_inputs(counters) | |
| 53 | + | counters["@poll inputs"] = 0 | |
| 54 | + | return true | |
| 55 | + | end | |
| 56 | + | if counters["@quit love"] > 0 then | |
| 57 | + | counters["@exit code"] = 0 | |
| 58 | + | self:on_quit_love(counters) | |
| 59 | + | counters["@quit love"] = 0 | |
| 60 | + | return true | |
| 61 | + | end | |
| 62 | + | if counters["@step timer"] > 0 then | |
| 63 | + | self:on_step_timer(counters) | |
| 64 | + | counters["@step timer"] = 0 | |
| 65 | + | return true | |
| 66 | + | end | |
| 67 | + | if counters["@clear screen"] > 0 then | |
| 68 | + | self:on_clear_screen(counters) | |
| 69 | + | counters["@clear screen"] = 0 | |
| 70 | + | return true | |
| 71 | + | end | |
| 72 | + | if counters["@present"] > 0 then | |
| 73 | + | self:on_present(counters) | |
| 74 | + | counters["@present"] = 0 | |
| 75 | + | return true | |
| 76 | + | end | |
| 77 | + | if counters["@sleep"] > 0 then | |
| 78 | + | self:on_sleep(counters, counters["@sleep"]) | |
| 79 | + | counters["@sleep"] = 0 | |
| 80 | + | counters["@sleep"] = 0 | |
| 81 | + | return true | |
| 82 | + | end | |
| 83 | + | if counters["@print hello from vera"] > 0 then | |
| 84 | + | self:on_hello_from_vera(counters) | |
| 85 | + | counters["@print hello from vera"] = 0 | |
| 86 | + | return true | |
| 87 | + | end | |
| 88 | + | if counters["run main loop"] > 0 then | |
| 89 | + | local acc = counters["run main loop"] | |
| 90 | + | counters["run main loop"] = max(counters["run main loop"] - acc, 0) | |
| 91 | + | counters["poll inputs"] = counters["poll inputs"] + acc * 1 | |
| 92 | + | counters["run current frame"] = counters["run current frame"] + acc * 1 | |
| 93 | + | return true | |
| 94 | + | end | |
| 95 | + | if counters["poll inputs"] > 0 then | |
| 96 | + | local acc = counters["poll inputs"] | |
| 97 | + | counters["poll inputs"] = max(counters["poll inputs"] - acc, 0) | |
| 98 | + | counters["@poll inputs"] = counters["@poll inputs"] + acc * 1 | |
| 99 | + | return true | |
| 100 | + | end | |
| 101 | + | if counters["run current frame"] > 0 and counters["@quit"] > 0 then | |
| 102 | + | local acc = huge | |
| 103 | + | acc = min(acc, counters["run current frame"]) | |
| 104 | + | acc = min(acc, counters["@quit"]) | |
| 105 | + | counters["run current frame"] = max(counters["run current frame"] - acc, 0) | |
| 106 | + | counters["@quit"] = max(counters["@quit"] - acc, 0) | |
| 107 | + | counters["@quit love"] = counters["@quit love"] + acc * 1 | |
| 108 | + | return true | |
| 109 | + | end | |
| 110 | + | if counters["run current frame"] > 0 then | |
| 111 | + | local acc = counters["run current frame"] | |
| 112 | + | counters["run current frame"] = max(counters["run current frame"] - acc, 0) | |
| 113 | + | counters["show message"] = counters["show message"] + acc * 1 | |
| 114 | + | counters["present current frame"] = counters["present current frame"] + acc * 1 | |
| 115 | + | counters["sleep for 1ms"] = counters["sleep for 1ms"] + acc * 1 | |
| 116 | + | counters["next cycle"] = counters["next cycle"] + acc * 1 | |
| 117 | + | counters["step timer"] = counters["step timer"] + acc * 1 | |
| 118 | + | counters["clear the screen"] = counters["clear the screen"] + acc * 1 | |
| 119 | + | return true | |
| 120 | + | end | |
| 121 | + | if counters["step timer"] > 0 then | |
| 122 | + | local acc = counters["step timer"] | |
| 123 | + | counters["step timer"] = max(counters["step timer"] - acc, 0) | |
| 124 | + | counters["@step timer"] = counters["@step timer"] + acc * 1 | |
| 125 | + | return true | |
| 126 | + | end | |
| 127 | + | if counters["clear the screen"] > 0 then | |
| 128 | + | local acc = counters["clear the screen"] | |
| 129 | + | counters["clear the screen"] = max(counters["clear the screen"] - acc, 0) | |
| 130 | + | counters["@clear screen"] = counters["@clear screen"] + acc * 1 | |
| 131 | + | return true | |
| 132 | + | end | |
| 133 | + | if counters["show message"] > 0 then | |
| 134 | + | local acc = counters["show message"] | |
| 135 | + | counters["show message"] = max(counters["show message"] - acc, 0) | |
| 136 | + | counters["@print hello from vera"] = counters["@print hello from vera"] + acc * 1 | |
| 137 | + | return true | |
| 138 | + | end | |
| 139 | + | if counters["present current frame"] > 0 then | |
| 140 | + | local acc = counters["present current frame"] | |
| 141 | + | counters["present current frame"] = max(counters["present current frame"] - acc, 0) | |
| 142 | + | counters["@present"] = counters["@present"] + acc * 1 | |
| 143 | + | return true | |
| 144 | + | end | |
| 145 | + | if counters["sleep for 1ms"] > 0 then | |
| 146 | + | local acc = counters["sleep for 1ms"] | |
| 147 | + | counters["sleep for 1ms"] = max(counters["sleep for 1ms"] - acc, 0) | |
| 148 | + | counters["@ms"] = counters["@ms"] + acc * 1 | |
| 149 | + | return true | |
| 150 | + | end | |
| 151 | + | if counters["next cycle"] > 0 then | |
| 152 | + | local acc = counters["next cycle"] | |
| 153 | + | counters["next cycle"] = max(counters["next cycle"] - acc, 0) | |
| 154 | + | counters["run main loop"] = counters["run main loop"] + acc * 1 | |
| 155 | + | return true | |
| 156 | + | end | |
| 157 | + | return false | |
| 158 | + | end | |
| 159 | + | ||
| 160 | + | function machine:run() | |
| 161 | + | local counters = self.counters | |
| 162 | + | while match(self, counters) do end | |
| 163 | + | end | |
| 164 | + | ||
| 165 | + | return machine | |
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