1 | // |
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2 | // Orbital |
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3 | // |
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4 | // Copyright: (c) 2009-2012 Cédric Lecacheur <jordx@free.fr> |
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5 | // (c) 2009-2012 Benjamin Huet <huet.benjamin@gmail.com> |
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6 | // (c) 2012 Sam Hocevar <sam@hocevar.net> |
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7 | // |
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8 | |
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9 | /* FIXME: this file is pure crap; it's only a test. */ |
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10 | |
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11 | #if !defined __SNAKE_H__ |
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12 | #define __SNAKE_H__ |
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13 | |
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14 | class Snake : public WorldEntity |
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15 | { |
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16 | public: |
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17 | Snake(int nodes) |
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18 | : m_steer(0.f), |
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19 | m_stick(0), |
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20 | m_ready(false) |
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21 | { |
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22 | m_head.Compile("sc#d91" |
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23 | "[afcb30 3 3 .8]" |
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24 | "sc#cca" |
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25 | "[afcb10 10 10 1]" |
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26 | "[afcb.4 .4 12 .4 tz3 tx8 mx]" |
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27 | "[afcb.4 .4 12 .4 tz3 tx12 mx]" |
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28 | "sc#69c9" |
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29 | "[afcb5 8 8 1 ty3 tz3]"); |
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30 | |
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31 | m_body.Compile("sc#d91" |
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32 | "[afcb3 20 3 .8 afcb20 3 3 .8]" |
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33 | "sc#cca" |
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34 | "[afcb6 6 12 1]" |
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35 | "[afcb.4 .4 7 .4 ty8 my]" |
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36 | "[afcb.4 .4 7 .4 tx8 mx]"); |
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37 | |
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38 | m_tail.Compile("sc#cca" |
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39 | "[afcb6 6 10 1 tz-1]" |
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40 | "[afcb.4 .4 8 .4 tz-1 ty8]" |
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41 | "[afcb.4 .4 8 .4 tz-1 ty12]" |
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42 | "[afcb.4 .4 8 .4 tz-1 tx8]" |
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43 | "[afcb.4 .4 8 .4 tz-1 tx12]" |
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44 | "sc#d91" |
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45 | "[afcb3 15 3 .8 ty8]" |
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46 | "[afcb15 3 3 .8 tx8]"); |
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47 | |
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48 | m_position = vec3(RandF(0.f, 100.f), 20.f, RandF(150.f, 250.f)); |
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49 | m_rotation = quat::rotate(RandF(30.f, 70.f), 0.f, 1.f, 0.f);; |
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50 | |
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51 | /* The last node is actually the tail */ |
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52 | for (int i = 0; i < nodes; i++) |
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53 | m_nodes.Push(m_rotation.transform(vec3(-12.f, 0.f, 0.f)), |
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54 | 0.f, 100.f, 0.f); |
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55 | m_nodes.Push(vec3(0.f, 0.f, 0.f), 45.f, 100.f, 0.f); |
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56 | } |
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57 | |
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58 | ~Snake() |
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59 | { |
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60 | if (m_stick) |
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61 | Input::UntrackStick(m_stick); |
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62 | } |
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63 | |
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64 | char const *GetName() { return "<snake>"; } |
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65 | |
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66 | vec3 GetBarycenter() |
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67 | { |
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68 | vec3 new_camera_pos = m_position; |
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69 | for (int i = 0; i < m_nodes.Count(); i++) |
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70 | new_camera_pos += m_nodes[i].m1; |
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71 | new_camera_pos /= (float)(m_nodes.Count() + 1); |
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72 | |
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73 | return new_camera_pos; |
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74 | } |
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75 | |
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76 | protected: |
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77 | virtual void TickGame(float seconds) |
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78 | { |
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79 | WorldEntity::TickGame(seconds); |
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80 | |
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81 | m_steer += 4.f * seconds; |
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82 | |
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83 | /* Destruction test */ |
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84 | if (!m_stick) |
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85 | m_stick = Input::TrackStick(); |
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86 | bool fire = m_stick && m_stick->GetButtonCount() >= 12 |
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87 | && m_stick->GetButton(12); |
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88 | fire = fire || Input::GetButtonState(305 /* Right Ctrl */); |
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89 | if (fire && (int)m_steer != (int)(m_steer - 2.f * seconds)) |
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90 | { |
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91 | int tohit = (int)RandF((float)m_nodes.Count() - 2.0f); |
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92 | m_nodes[tohit].m4 += 150.f; |
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93 | m_nodes[tohit + 1].m4 += 150.f; |
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94 | } |
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95 | |
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96 | float test = sinf(m_steer) * 200.f + 60.f; |
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97 | m_rotation *= quat::rotate(seconds * test, vec3(0, 1, 0)); |
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98 | |
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99 | m_velocity = 120.f * m_rotation.transform(vec3(0, 0, 1)); |
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100 | vec3 deltapos = seconds * m_velocity; |
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101 | m_position += deltapos; |
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102 | |
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103 | /* Remove dead nodes */ |
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104 | for (int i = m_nodes.Count(); i--; ) |
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105 | { |
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106 | if (m_nodes[i].m3 < 0.f) |
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107 | { |
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108 | m_nodes[i + 1].m1 += m_nodes[i].m1; |
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109 | m_nodes.Remove(i); |
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110 | } |
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111 | } |
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112 | |
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113 | /* Regrow! FIXME: just a test */ |
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114 | if (m_nodes.Count() < 5) |
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115 | { |
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116 | m_nodes.Empty(); |
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117 | for (int i = 0; i < 35; i++) |
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118 | m_nodes.Push(m_rotation.transform(vec3(-12.f, 0.f, 0.f)), |
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119 | 0.f, 100.f, 0.f); |
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120 | m_nodes.Push(vec3(0.f, 0.f, 0.f), 45.f, 100.f, 0.f); |
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121 | } |
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122 | |
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123 | for (int i = 0; i < m_nodes.Count(); i++) |
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124 | { |
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125 | /* The current node is dragged by the previous one */ |
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126 | vec3 new_delta = m_nodes[i].m1 - deltapos; |
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127 | float new_distance = (float)length(new_delta); |
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128 | if (new_distance > 12.f) |
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129 | { |
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130 | new_delta /= new_distance; |
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131 | new_distance = std::max(12.f, new_distance - seconds * 160.f); |
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132 | new_delta *= new_distance; |
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133 | } |
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134 | deltapos = new_delta + deltapos - m_nodes[i].m1; |
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135 | m_nodes[i].m1 = new_delta; |
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136 | |
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137 | /* If the current node is not the tail, rotate */ |
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138 | if (i != m_nodes.Count() - 1) |
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139 | m_nodes[i].m2 += seconds * ((i & 1) ? 200.f : -200.f); |
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140 | |
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141 | /* Apply damage */ |
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142 | float damage = std::min(m_nodes[i].m4, 80.f * seconds); |
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143 | m_nodes[i].m3 -= damage; |
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144 | m_nodes[i].m4 -= damage; |
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145 | } |
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146 | } |
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147 | |
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148 | virtual void TickDraw(float seconds) |
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149 | { |
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150 | WorldEntity::TickDraw(seconds); |
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151 | |
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152 | if (!m_ready) |
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153 | { |
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154 | m_head.MeshConvert(); |
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155 | m_body.MeshConvert(); |
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156 | m_tail.MeshConvert(); |
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157 | m_ready = true; |
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158 | } |
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159 | |
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160 | vec3 pos = m_position; |
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161 | quat rot = m_rotation; |
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162 | float y_angle = 0.f; |
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163 | mat4 model = mat4::translate(pos) * mat4(rot); |
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164 | m_head.Render(model); |
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165 | |
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166 | for (int i = 0; i < m_nodes.Count(); i++) |
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167 | { |
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168 | pos += m_nodes[i].m1; |
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169 | y_angle = (180.f / (float)M_PI) * atan2(m_nodes[i].m1.x, m_nodes[i].m1.z); |
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170 | rot = quat::rotate(y_angle, 0.f, 1.f, 0.f) |
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171 | * quat::rotate(m_nodes[i].m2, 0.f, 0.f, 1.f); |
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172 | model = mat4::translate(pos) * mat4(rot); |
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173 | if (i != m_nodes.Count() - 1 && m_nodes[i].m4) |
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174 | m_body.Render(model, sin(2.f * m_nodes[i].m3) * .5f + .5f); |
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175 | else if (i != m_nodes.Count() - 1) |
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176 | m_body.Render(model); |
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177 | else |
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178 | m_tail.Render(model); |
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179 | } |
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180 | } |
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181 | |
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182 | private: |
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183 | EasyMesh m_head, m_body, m_tail; |
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184 | float m_steer; |
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185 | /* List of nodes (position, self-rotation angle, life, damage) */ |
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186 | Array<vec3, float, float, float> m_nodes; |
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187 | /* Test */ |
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188 | Stick *m_stick; |
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189 | bool m_ready; |
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190 | }; |
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191 | |
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192 | #endif /* __SNAKE_H__ */ |
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193 | |
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