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11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
16 * Basic slew system for moving around the mine
39 //variables for slew system
41 object *slew_obj=NULL; //what object is slewing, or NULL if none
44 #define ROT_SPEED 8 //rate of rotation while key held down
45 #define VEL_SPEED (2*55) //rate of acceleration while key held down
47 short old_joy_x,old_joy_y; //position last time around
49 // Function Prototypes
53 // -------------------------------------------------------------------
54 //say start slewing with this object
55 void slew_init(object *obj)
59 slew_obj->control_type = CT_SLEW;
60 slew_obj->movement_type = MT_NONE;
62 slew_stop(); //make sure not moving
68 if (!slew_obj || slew_obj->control_type!=CT_SLEW) return 0;
70 vm_vec_zero(&slew_obj->mtype.phys_info.velocity);
74 void slew_reset_orient()
76 if (!slew_obj || slew_obj->control_type!=CT_SLEW) return;
78 slew_obj->orient.rvec.x = slew_obj->orient.uvec.y = slew_obj->orient.fvec.z = f1_0;
80 slew_obj->orient.rvec.y = slew_obj->orient.rvec.z = slew_obj->orient.uvec.x =
81 slew_obj->orient.uvec.z = slew_obj->orient.fvec.x = slew_obj->orient.fvec.y = 0;
85 int do_slew_movement(object *obj, int check_keys, int check_joy )
88 vms_vector svel, movement; //scaled velocity (per this frame)
89 vms_matrix rotmat,new_pm;
91 int joyx_moved,joyy_moved;
94 if (!slew_obj || slew_obj->control_type!=CT_SLEW) return 0;
97 if (Function_mode == FMODE_EDITOR) {
98 if (FindArg("-jasen"))
99 obj->mtype.phys_info.velocity.x += VEL_SPEED * (key_down_time(KEY_PAD3) - key_down_time(KEY_PAD1));
101 obj->mtype.phys_info.velocity.x += VEL_SPEED * (key_down_time(KEY_PAD9) - key_down_time(KEY_PAD7));
102 obj->mtype.phys_info.velocity.y += VEL_SPEED * (key_down_time(KEY_PADMINUS) - key_down_time(KEY_PADPLUS));
103 obj->mtype.phys_info.velocity.z += VEL_SPEED * (key_down_time(KEY_PAD8) - key_down_time(KEY_PAD2));
105 rotang.p = (key_down_time(KEY_LBRACKET) - key_down_time(KEY_RBRACKET))/ROT_SPEED ;
106 if (FindArg("-jasen"))
107 rotang.b = (key_down_time(KEY_PAD7) - key_down_time(KEY_PAD9))/ROT_SPEED;
109 rotang.b = (key_down_time(KEY_PAD1) - key_down_time(KEY_PAD3))/ROT_SPEED;
110 rotang.h = (key_down_time(KEY_PAD6) - key_down_time(KEY_PAD4))/ROT_SPEED;
113 obj->mtype.phys_info.velocity.x += VEL_SPEED * Controls.sideways_thrust_time;
114 obj->mtype.phys_info.velocity.y += VEL_SPEED * Controls.vertical_thrust_time;
115 obj->mtype.phys_info.velocity.z += VEL_SPEED * Controls.forward_thrust_time;
117 rotang.p = Controls.pitch_time/ROT_SPEED ;
118 rotang.b = Controls.bank_time/ROT_SPEED;
119 rotang.h = Controls.heading_time/ROT_SPEED;
123 rotang.p = rotang.b = rotang.h = 0;
125 //check for joystick movement
127 if (check_joy && joy_present && (Function_mode == FMODE_EDITOR) ) {
128 joy_get_pos(&joy_x,&joy_y);
131 joyx_moved = (abs(joy_x - old_joy_x)>JOY_NULL);
132 joyy_moved = (abs(joy_y - old_joy_y)>JOY_NULL);
134 if (abs(joy_x) < JOY_NULL) joy_x = 0;
135 if (abs(joy_y) < JOY_NULL) joy_y = 0;
138 if (!rotang.p) rotang.p = fixmul(-joy_y * 512,FrameTime); else;
140 if (joyy_moved) obj->mtype.phys_info.velocity.z = -joy_y * 8192;
142 if (!rotang.h) rotang.h = fixmul(joy_x * 512,FrameTime);
144 if (joyx_moved) old_joy_x = joy_x;
145 if (joyy_moved) old_joy_y = joy_y;
148 moved = rotang.p | rotang.b | rotang.h;
150 vm_angles_2_matrix(&rotmat,&rotang);
151 vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
152 obj->orient = new_pm;
153 vm_transpose_matrix(&new_pm); //make those columns rows
155 moved |= obj->mtype.phys_info.velocity.x | obj->mtype.phys_info.velocity.y | obj->mtype.phys_info.velocity.z;
157 svel = obj->mtype.phys_info.velocity;
158 vm_vec_scale(&svel,FrameTime); //movement in this frame
159 vm_vec_rotate(&movement,&svel,&new_pm);
161 // obj->last_pos = obj->pos;
162 vm_vec_add2(&obj->pos,&movement);
164 moved |= (movement.x || movement.y || movement.z);
167 update_object_seg(obj); //update segment id
172 //do slew for this frame
173 int slew_frame(int check_keys)
175 return do_slew_movement( slew_obj, !check_keys, 1 );