186 lines
3.2 KiB
C++
186 lines
3.2 KiB
C++
//
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// The camera.
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//
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#include "always.h"
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#include "cam.h"
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#include "key.h"
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#include "matrix.h"
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#include "os.h"
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//
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// The two different camera types.
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//
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#define CAM_TYPE_LOCKED 0
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#define CAM_TYPE_FREE 1
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#define CAM_TYPE_NUMBER 2
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//
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// The camera.
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//
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SLONG CAM_type;
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float CAM_x;
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float CAM_y;
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float CAM_z;
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float CAM_yaw;
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float CAM_pitch;
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float CAM_lens;
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float CAM_dist;
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float CAM_matrix[9];
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float CAM_focus_x;
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float CAM_focus_y;
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float CAM_focus_z;
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void CAM_init(void)
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{
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CAM_type = CAM_TYPE_LOCKED;
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CAM_yaw = 0.0F;
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CAM_pitch = -1.0F;
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CAM_dist = 150.0F;
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CAM_lens = 2.5F;
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CAM_process();
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}
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void CAM_process(void)
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{
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/*
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extern float SIREN_x;
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extern float SIREN_y;
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extern float SIREN_z;
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CAM_focus_x = SIREN_x;
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CAM_focus_y = SIREN_y;
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CAM_focus_z = SIREN_z;
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*/
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//
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// Pressing TAB toggles between the different camera types.
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//
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if (KEY_on[KEY_TAB])
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{
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KEY_on[KEY_TAB] = 0;
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CAM_type += 1;
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if (CAM_type >= CAM_TYPE_NUMBER)
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{
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CAM_type = 0;
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}
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}
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#define CAM_SPEED_MOVE (2.000F)
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#define CAM_SPEED_TURN (0.060F)
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switch(CAM_type)
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{
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case CAM_TYPE_LOCKED:
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if (KEY_on[KEY_HOME]) {CAM_dist -= CAM_SPEED_MOVE;}
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if (KEY_on[KEY_END ]) {CAM_dist += CAM_SPEED_MOVE;}
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if (KEY_on[KEY_UP ]) {CAM_pitch += CAM_SPEED_TURN;}
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if (KEY_on[KEY_DOWN]) {CAM_pitch -= CAM_SPEED_TURN;}
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if (KEY_on[KEY_LEFT ]) {CAM_yaw -= CAM_SPEED_TURN;}
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if (KEY_on[KEY_RIGHT]) {CAM_yaw += CAM_SPEED_TURN;}
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MATRIX_calc(
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CAM_matrix,
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CAM_yaw/* + float(OS_ticks()) * 0.001F*/,
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CAM_pitch,
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0.0F);
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CAM_x = CAM_focus_x - CAM_matrix[6] * CAM_dist;
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CAM_y = CAM_focus_y - CAM_matrix[7] * CAM_dist;
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CAM_z = CAM_focus_z - CAM_matrix[8] * CAM_dist;
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break;
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case CAM_TYPE_FREE:
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MATRIX_calc(
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CAM_matrix,
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CAM_yaw/* + float(OS_ticks()) * 0.001F*/,
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CAM_pitch,
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0.0F);
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if (KEY_on[KEY_UP])
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{
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if (KEY_shift)
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{
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CAM_x += CAM_matrix[3] * CAM_SPEED_MOVE;
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CAM_y += CAM_matrix[4] * CAM_SPEED_MOVE;
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CAM_z += CAM_matrix[5] * CAM_SPEED_MOVE;
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}
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else
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{
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CAM_x += CAM_matrix[6] * CAM_SPEED_MOVE;
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CAM_y += CAM_matrix[7] * CAM_SPEED_MOVE;
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CAM_z += CAM_matrix[8] * CAM_SPEED_MOVE;
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}
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}
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if (KEY_on[KEY_DOWN])
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{
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if (KEY_shift)
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{
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CAM_x -= CAM_matrix[3] * CAM_SPEED_MOVE;
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CAM_y -= CAM_matrix[4] * CAM_SPEED_MOVE;
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CAM_z -= CAM_matrix[5] * CAM_SPEED_MOVE;
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}
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else
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{
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CAM_x -= CAM_matrix[6] * CAM_SPEED_MOVE;
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CAM_y -= CAM_matrix[7] * CAM_SPEED_MOVE;
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CAM_z -= CAM_matrix[8] * CAM_SPEED_MOVE;
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}
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}
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if (KEY_on[KEY_LEFT])
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{
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CAM_x -= CAM_matrix[0] * CAM_SPEED_MOVE;
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CAM_y -= CAM_matrix[1] * CAM_SPEED_MOVE;
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CAM_z -= CAM_matrix[2] * CAM_SPEED_MOVE;
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}
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if (KEY_on[KEY_RIGHT])
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{
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CAM_x += CAM_matrix[0] * CAM_SPEED_MOVE;
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CAM_y += CAM_matrix[1] * CAM_SPEED_MOVE;
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CAM_z += CAM_matrix[2] * CAM_SPEED_MOVE;
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}
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if (KEY_on[KEY_HOME]) {CAM_pitch -= CAM_SPEED_TURN;}
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if (KEY_on[KEY_END ]) {CAM_pitch += CAM_SPEED_TURN;}
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if (KEY_on[KEY_DELETE ]) {CAM_yaw -= CAM_SPEED_TURN;}
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if (KEY_on[KEY_PAGEDOWN]) {CAM_yaw += CAM_SPEED_TURN;}
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MATRIX_calc(
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CAM_matrix,
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CAM_yaw/* + float(OS_ticks()) * 0.001F*/,
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CAM_pitch,
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0.0F);
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break;
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default:
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ASSERT(0);
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break;
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}
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}
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