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1090 | pj | 1 | /* |
2 | * Project: S.Ha.R.K. |
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3 | * |
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4 | * Coordinators: |
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5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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6 | * Paolo Gai <pj@gandalf.sssup.it> |
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7 | * |
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8 | * Authors : |
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9 | * Paolo Gai <pj@gandalf.sssup.it> |
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10 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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11 | * Luca Abeni <luca@gandalf.sssup.it> |
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12 | * (see the web pages for full authors list) |
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13 | * |
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14 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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15 | * |
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16 | * http://www.sssup.it |
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17 | * http://retis.sssup.it |
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18 | * http://shark.sssup.it |
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19 | */ |
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20 | |||
1448 | giacomo | 21 | /* CVS : $Id: cannone.c,v 1.2 2004-05-23 08:59:27 giacomo Exp $ */ |
1090 | pj | 22 | |
23 | /* |
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24 | * Copyright (C) 2000 Fabio Calabrese <fabiocalabrese77@yahoo.it> |
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25 | * |
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26 | * This program is free software; you can redistribute it and/or modify |
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27 | * it under the terms of the GNU General Public License as published by |
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28 | * the Free Software Foundation; either version 2 of the License, or |
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29 | * (at your option) any later version. |
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30 | * |
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31 | * This program is distributed in the hope that it will be useful, |
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32 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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33 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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34 | * GNU General Public License for more details. |
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35 | * |
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36 | * You should have received a copy of the GNU General Public License |
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37 | * along with this program; if not, write to the Free Software |
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38 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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39 | * |
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40 | */ |
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41 | |||
42 | //************************** |
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43 | //* file: cannone.c * |
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44 | //* included by: bca.c * |
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45 | //************************** |
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46 | |||
47 | TASK cannone_creator(void * arg) |
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48 | { int i, index, last; |
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49 | WORD count; |
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50 | PID pid=-1; |
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51 | |||
52 | while(1){ |
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53 | |||
54 | count=0; |
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55 | index=-1; |
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56 | last=-1; |
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57 | |||
58 | for (i=0; i<CANNONE_N_MAX; i++) // Conteggio aerei attivi |
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59 | if (cannone_table[i].status) { |
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60 | count++; |
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61 | last=i; //...ultima posizione occupata in tabella... |
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62 | } |
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63 | else { |
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64 | if (index==-1) index=i; //...prima posizione libera in tabella... |
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65 | } |
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66 | |||
67 | if (count<cannone_count && index!=-1) { // Richiesta nuovo cannone |
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68 | cannone_table[index].status = 1; //...occupa posizione... |
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69 | cannone_table[index].killing = 0; //...disattiva richiesta di kill... |
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70 | if (index==0) pid = crea_hard_cannone(index); // sempre il 1ø hard |
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71 | else pid = crea_soft_cannone(index); // tutti gli altri soft |
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72 | cannone_table[index].pid = pid; |
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73 | if (pid!=NIL) task_activate(pid); |
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74 | else { //ripristino il posto libero in tabella; |
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75 | cannone_table[index].status = -2; |
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76 | cannone_table[index].killing = -2; |
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77 | } |
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78 | } |
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79 | |||
80 | else if (count>cannone_count) { // Richiesta cancellazione cannone |
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81 | cannone_table[last].killing = 1; |
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82 | } |
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83 | |||
84 | task_endcycle(); |
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85 | } |
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86 | return NULL; |
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87 | } |
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88 | |||
1448 | giacomo | 89 | PID crea_soft_cannone_creator(); |
90 | PID crea_hard_cannone(int index); |
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91 | PID crea_hard_cannone(int index); |
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92 | |||
93 | PID crea_hard_missile(int index); |
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94 | PID crea_soft_missile(int index); |
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95 | |||
1090 | pj | 96 | TASK cannone(void *arg) |
97 | { |
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98 | PID missile_pid=-2; |
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99 | int i, index; // indice nella aereo_table e cannone_table |
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100 | int d, dir; |
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101 | int xx0,yy0,xx1,yy1; |
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102 | int first_time; |
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103 | |||
104 | index = (int)arg; |
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105 | first_time = 1; |
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106 | if (index%2) { |
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107 | //indice dispari |
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108 | xx0 = X0 + 500/2 - CANNONE_LX/2 + 500/(CANNONE_N_MAX+1)*(index+1)/2; |
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109 | } |
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110 | else { |
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111 | //indice pari |
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112 | xx0 = X0 + 500/2 - CANNONE_LX/2 - 500/(CANNONE_N_MAX+1)*(index/2); |
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113 | } |
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114 | xx1 = xx0 + CANNONE_LX; |
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115 | yy0= Y1 - CANNONE_LY; |
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116 | yy1= Y1; |
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117 | |||
118 | cannone_table[index].x = xx0 + CANNONE_LX/2; |
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119 | |||
120 | while(1){ |
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121 | |||
122 | if (cannone_table[index].killing) { |
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123 | if (!first_time) { |
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124 | mutex_lock(&grx_mutex); |
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125 | FAB_image_put_within(image_bca,X0,Y0,xx0,yy0,xx1,yy1); |
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126 | mutex_unlock(&grx_mutex); |
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127 | } |
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128 | cannone_table[index].status=0; |
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129 | cannone_table[index].pid=-2; |
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130 | cannone_table[index].killing=0; |
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131 | //il task aereo_creator si accorge che c'Š un aereo in meno |
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132 | // quindi ne ricreer… uno nuovo!!! |
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133 | return NULL; |
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134 | } |
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135 | |||
136 | if (first_time) { |
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137 | mutex_lock(&grx_mutex); //...aggiorna disegno... |
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138 | if (index==0) FAB_image_put(image_cannone[1], xx0, yy0); |
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139 | else FAB_image_put(image_cannone[0], xx0, yy0); |
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140 | mutex_unlock(&grx_mutex); |
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141 | first_time=0; |
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142 | } |
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143 | |||
144 | if (!cannone_table[index].fire) { |
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145 | for (i=0; i<AEREO_N_MAX; i++) { |
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146 | if (aereo_table[i].status) { |
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147 | d = aereo_table[i].x - (xx0+CANNONE_LX/2); |
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148 | dir = aereo_table[i].dir; |
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149 | if (d*dir<0 && FAB_ABS(d)<=CANNONE_SENSIBILITA/1000.0*500/BASE_L) { |
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150 | // FA F U O C O |
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151 | if (index==0) missile_pid=crea_hard_missile(index); |
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152 | else missile_pid=crea_soft_missile(index); |
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153 | if (missile_pid!=NIL) { |
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154 | cannone_table[index].fire = 1; |
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155 | task_activate(missile_pid); |
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156 | break; |
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157 | } |
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158 | } |
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159 | } |
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160 | } |
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161 | } |
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162 | |||
163 | task_endcycle(); |
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164 | } |
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165 | |||
166 | return NULL; |
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167 | } |
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168 | |||
169 | |||
170 | |||
171 | PID crea_soft_cannone_creator() |
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172 | { |
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173 | SOFT_TASK_MODEL m; |
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174 | PID pid; |
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175 | |||
176 | soft_task_default_model(m); |
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177 | soft_task_def_periodic(m); |
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178 | soft_task_def_period(m,CANNONE_CREATOR_PERIOD); |
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179 | soft_task_def_wcet(m,CANNONE_CREATOR_WCET); |
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180 | soft_task_def_met(m,CANNONE_CREATOR_MET); |
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181 | |||
182 | pid = task_create("cannone_creator", cannone_creator, &m, NULL); |
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183 | return pid; |
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184 | } |
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185 | |||
186 | PID crea_hard_cannone(int index) |
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187 | { |
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188 | HARD_TASK_MODEL m; |
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189 | PID pid; |
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190 | |||
191 | hard_task_default_model(m); |
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192 | hard_task_def_level(m,0); |
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193 | hard_task_def_arg(m,(void*)index); |
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194 | hard_task_def_periodic(m); |
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195 | hard_task_def_wcet(m, CANNONE_WCET); |
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196 | hard_task_def_mit(m,CANNONE_PERIOD); |
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197 | |||
198 | pid = task_create("hard_cannone", cannone, &m, NULL); |
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199 | return pid; |
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200 | } |
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201 | |||
202 | PID crea_soft_cannone(int index) |
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203 | { |
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204 | SOFT_TASK_MODEL m; |
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205 | PID pid; |
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206 | |||
207 | soft_task_default_model(m); |
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208 | soft_task_def_level(m,0); |
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209 | soft_task_def_arg(m,(void*)index); |
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210 | soft_task_def_periodic(m); |
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211 | soft_task_def_period(m,CANNONE_PERIOD); |
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212 | soft_task_def_wcet(m, CANNONE_WCET); |
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213 | soft_task_def_met(m,CANNONE_MET); |
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214 | |||
215 | pid = task_create("soft_cannone", cannone, &m, NULL); |
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216 | return pid; |
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217 | } |
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218 |