summary refs log tree commit diff stats
path: root/libs/cocos2d/CCActionCamera.m
diff options
context:
space:
mode:
authorStarla Insigna <starla4444@gmail.com>2011-07-30 11:19:14 -0400
committerStarla Insigna <starla4444@gmail.com>2011-07-30 11:19:14 -0400
commit9cd57b731ab1c666d4a1cb725538fdc137763d12 (patch)
tree5bac45ae5157a1cb10c6e45500cbf72789917980 /libs/cocos2d/CCActionCamera.m
downloadcartcollect-9cd57b731ab1c666d4a1cb725538fdc137763d12.tar.gz
cartcollect-9cd57b731ab1c666d4a1cb725538fdc137763d12.tar.bz2
cartcollect-9cd57b731ab1c666d4a1cb725538fdc137763d12.zip
Initial commit (version 0.2.1)
Diffstat (limited to 'libs/cocos2d/CCActionCamera.m')
-rwxr-xr-xlibs/cocos2d/CCActionCamera.m147
1 files changed, 147 insertions, 0 deletions
diff --git a/libs/cocos2d/CCActionCamera.m b/libs/cocos2d/CCActionCamera.m new file mode 100755 index 0000000..4dafc4e --- /dev/null +++ b/libs/cocos2d/CCActionCamera.m
@@ -0,0 +1,147 @@
1/*
2 * cocos2d for iPhone: http://www.cocos2d-iphone.org
3 *
4 * Copyright (c) 2008-2010 Ricardo Quesada
5 * Copyright (c) 2011 Zynga Inc.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 *
25 */
26
27
28
29#import "CCActionCamera.h"
30#import "CCNode.h"
31#import "CCCamera.h"
32#import "ccMacros.h"
33
34//
35// CameraAction
36//
37@implementation CCActionCamera
38-(void) startWithTarget:(id)aTarget
39{
40 [super startWithTarget:aTarget];
41 CCCamera *camera = [target_ camera];
42 [camera centerX:&centerXOrig_ centerY:&centerYOrig_ centerZ:&centerZOrig_];
43 [camera eyeX:&eyeXOrig_ eyeY:&eyeYOrig_ eyeZ:&eyeZOrig_];
44 [camera upX:&upXOrig_ upY:&upYOrig_ upZ: &upZOrig_];
45}
46
47-(id) reverse
48{
49 return [CCReverseTime actionWithAction:self];
50}
51@end
52
53@implementation CCOrbitCamera
54+(id) actionWithDuration:(float)t radius:(float)r deltaRadius:(float) dr angleZ:(float)z deltaAngleZ:(float)dz angleX:(float)x deltaAngleX:(float)dx
55{
56 return [[[self alloc] initWithDuration:t radius:r deltaRadius:dr angleZ:z deltaAngleZ:dz angleX:x deltaAngleX:dx] autorelease];
57}
58
59-(id) copyWithZone: (NSZone*) zone
60{
61 return [[[self class] allocWithZone: zone] initWithDuration:duration_ radius:radius_ deltaRadius:deltaRadius_ angleZ:angleZ_ deltaAngleZ:deltaAngleZ_ angleX:angleX_ deltaAngleX:deltaAngleX_];
62}
63
64
65-(id) initWithDuration:(float)t radius:(float)r deltaRadius:(float) dr angleZ:(float)z deltaAngleZ:(float)dz angleX:(float)x deltaAngleX:(float)dx
66{
67 if((self=[super initWithDuration:t]) ) {
68
69 radius_ = r;
70 deltaRadius_ = dr;
71 angleZ_ = z;
72 deltaAngleZ_ = dz;
73 angleX_ = x;
74 deltaAngleX_ = dx;
75
76 radDeltaZ_ = (CGFloat)CC_DEGREES_TO_RADIANS(dz);
77 radDeltaX_ = (CGFloat)CC_DEGREES_TO_RADIANS(dx);
78 }
79
80 return self;
81}
82
83-(void) startWithTarget:(id)aTarget
84{
85 [super startWithTarget:aTarget];
86 float r, zenith, azimuth;
87
88 [self sphericalRadius: &r zenith:&zenith azimuth:&azimuth];
89
90#if 0 // isnan() is not supported on the simulator, and isnan() always returns false.
91 if( isnan(radius_) )
92 radius_ = r;
93
94 if( isnan( angleZ_) )
95 angleZ_ = (CGFloat)CC_RADIANS_TO_DEGREES(zenith);
96
97 if( isnan( angleX_ ) )
98 angleX_ = (CGFloat)CC_RADIANS_TO_DEGREES(azimuth);
99#endif
100
101 radZ_ = (CGFloat)CC_DEGREES_TO_RADIANS(angleZ_);
102 radX_ = (CGFloat)CC_DEGREES_TO_RADIANS(angleX_);
103}
104
105-(void) update: (ccTime) dt
106{
107 float r = (radius_ + deltaRadius_ * dt) *[CCCamera getZEye];
108 float za = radZ_ + radDeltaZ_ * dt;
109 float xa = radX_ + radDeltaX_ * dt;
110
111 float i = sinf(za) * cosf(xa) * r + centerXOrig_;
112 float j = sinf(za) * sinf(xa) * r + centerYOrig_;
113 float k = cosf(za) * r + centerZOrig_;
114
115 [[target_ camera] setEyeX:i eyeY:j eyeZ:k];
116}
117
118-(void) sphericalRadius:(float*) newRadius zenith:(float*) zenith azimuth:(float*) azimuth
119{
120 float ex, ey, ez, cx, cy, cz, x, y, z;
121 float r; // radius
122 float s;
123
124 CCCamera *camera = [target_ camera];
125 [camera eyeX:&ex eyeY:&ey eyeZ:&ez];
126 [camera centerX:&cx centerY:&cy centerZ:&cz];
127
128 x = ex-cx;
129 y = ey-cy;
130 z = ez-cz;
131
132 r = sqrtf( x*x + y*y + z*z);
133 s = sqrtf( x*x + y*y);
134 if(s==0.0f)
135 s = FLT_EPSILON;
136 if(r==0.0f)
137 r = FLT_EPSILON;
138
139 *zenith = acosf( z/r);
140 if( x < 0 )
141 *azimuth = (float)M_PI - asinf(y/s);
142 else
143 *azimuth = asinf(y/s);
144
145 *newRadius = r / [CCCamera getZEye];
146}
147@end