Mercurial > projects > chipmunkd
annotate trunk/chipmunkd/constraints/cpConstraint.d @ 28:4541ca17975b
use __gshared as chipmunk heavily relies on globals and D would otherwise make them TLS
| author | Extrawurst |
|---|---|
| date | Mon, 13 Dec 2010 21:40:56 +0100 |
| parents | df4ebc8add66 |
| children |
| rev | line source |
|---|---|
| 4 | 1 |
| 2 // written in the D programming language | |
| 3 | |
| 4 module chipmunkd.constraints.cpConstraint; | |
| 5 | |
| 6 import chipmunkd.chipmunk; | |
| 7 | |
| 8 alias void function(cpConstraint *constraint, cpFloat dt, cpFloat dt_inv) cpConstraintPreStepFunction; | |
| 9 alias void function(cpConstraint *constraint) cpConstraintApplyImpulseFunction; | |
| 10 alias cpFloat function(cpConstraint *constraint) cpConstraintGetImpulseFunction; | |
| 11 | |
| 12 struct cpConstraintClass { | |
| 13 cpConstraintPreStepFunction preStep; | |
| 14 cpConstraintApplyImpulseFunction applyImpulse; | |
| 15 cpConstraintGetImpulseFunction getImpulse; | |
| 16 } | |
| 17 | |
| 18 | |
| 19 | |
| 20 struct cpConstraint { | |
| 21 cpConstraintClass *klass; | |
| 22 | |
| 23 cpBody *a; | |
| 24 cpBody *b; | |
| 25 cpFloat maxForce; | |
| 26 cpFloat biasCoef; | |
| 27 cpFloat maxBias; | |
| 28 | |
| 29 cpDataPointer data; | |
| 30 } | |
| 31 | |
| 32 //#ifdef CP_USE_DEPRECATED_API_4 | |
| 33 //typedef cpConstraint cpJoint; | |
| 34 //#endif | |
| 35 | |
| 36 //void cpConstraintDestroy(cpConstraint *constraint); | |
| 37 //void cpConstraintFree(cpConstraint *constraint); | |
| 38 | |
| 39 static void | |
| 40 cpConstraintActivateBodies(cpConstraint *constraint) | |
| 41 { | |
| 42 cpBody *a = constraint.a; if(a) cpBodyActivate(a); | |
| 43 cpBody *b = constraint.b; if(b) cpBodyActivate(b); | |
| 44 } | |
| 45 | |
| 46 static cpFloat | |
| 47 cpConstraintGetImpulse(cpConstraint *constraint) | |
| 48 { | |
| 49 return constraint.klass.getImpulse(constraint); | |
| 50 } | |
| 51 | |
| 52 template cpConstraintCheckCast(string constraint, string _struct) | |
| 53 { | |
| 54 enum cpConstraintCheckCast = | |
| 55 "assert("~constraint~".klass == "~_struct~"GetClass(), \"Constraint is not a "~_struct~"\");"; | |
| 56 } | |
| 57 | |
| 58 template CP_DefineConstraintGetter(string _struct,string type,string member,string name) | |
| 59 { | |
| 60 enum CP_DefineConstraintGetter = | |
| 61 "static "~type~" "~_struct~"Get"~name~"(cpConstraint *constraint){"~ | |
| 62 cpConstraintCheckCast!("constraint",_struct)~ | |
| 63 "cpConstraintActivateBodies(constraint);"~ | |
| 64 "return (cast("~_struct~"*)constraint)."~member~";"~ | |
| 65 "}"; | |
| 66 } | |
| 67 | |
| 68 template CP_DefineConstraintSetter(string _struct,string type,string member,string name) | |
| 69 { | |
| 70 enum CP_DefineConstraintSetter = | |
| 71 "static void "~_struct~"Set"~name~"(cpConstraint *constraint,"~type~" value){"~ | |
| 72 cpConstraintCheckCast!("constraint",_struct)~ | |
| 73 "cpConstraintActivateBodies(constraint);"~ | |
| 74 "(cast("~_struct~"*)constraint)."~member~" = value;"~ | |
| 75 "}"; | |
| 76 } | |
| 77 | |
| 78 template CP_DefineConstraintProperty(string _struct,string type,string member,string name) | |
| 79 { | |
| 80 enum CP_DefineConstraintProperty = | |
| 81 CP_DefineConstraintGetter!(_struct,type,member,name)~CP_DefineConstraintSetter!(_struct,type,member,name); | |
| 82 | |
| 83 } | |
| 84 | |
| 85 //// Built in Joint types | |
| 86 public import chipmunkd.constraints.cpPinJoint; | |
| 6 | 87 public import chipmunkd.constraints.cpSlideJoint; |
| 4 | 88 public import chipmunkd.constraints.cpPivotJoint; |
| 6 | 89 public import chipmunkd.constraints.cpGrooveJoint; |
| 4 | 90 public import chipmunkd.constraints.cpDampedSpring; |
| 6 | 91 public import chipmunkd.constraints.cpDampedRotarySpring; |
| 92 public import chipmunkd.constraints.cpRotaryLimitJoint; | |
| 93 public import chipmunkd.constraints.cpRatchetJoint; | |
| 94 public import chipmunkd.constraints.cpGearJoint; | |
| 95 public import chipmunkd.constraints.cpSimpleMotor; | |
| 4 | 96 |
| 97 | |
|
28
4541ca17975b
use __gshared as chipmunk heavily relies on globals and D would otherwise make them TLS
Extrawurst
parents:
15
diff
changeset
|
98 __gshared cpFloat cp_constraint_bias_coef = 0.1f; |
| 4 | 99 |
| 100 void cpConstraintDestroy(cpConstraint *constraint){} | |
| 101 | |
| 102 void | |
| 103 cpConstraintFree(cpConstraint *constraint) | |
| 104 { | |
| 105 if(constraint){ | |
| 106 cpConstraintDestroy(constraint); | |
| 107 cpfree(constraint); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 void | |
| 112 cpConstraintInit(cpConstraint *constraint, /+const+/ cpConstraintClass *klass, cpBody *a, cpBody *b) | |
| 113 { | |
| 114 constraint.klass = klass; | |
| 115 constraint.a = a; | |
| 116 constraint.b = b; | |
| 117 | |
| 118 constraint.maxForce = cast(cpFloat)INFINITY; | |
| 119 constraint.biasCoef = cp_constraint_bias_coef; | |
| 120 constraint.maxBias = cast(cpFloat)INFINITY; | |
| 121 } |