comparison: src/scene.c
src/scene.c
- changeset 33
- e7ddb52facd3
- parent 32
- 86468a71dd73
- child 37
- 8a8cc6725b48
equal
deleted
inserted
replaced
| 32:86468a71dd73 | 33:e7ddb52facd3 |
|---|---|
| 30 | 30 |
| 31 #include <cx/tree.h> | 31 #include <cx/tree.h> |
| 32 | 32 |
| 33 #include <assert.h> | 33 #include <assert.h> |
| 34 | 34 |
| 35 #define node_layout_ \ | |
| 36 offsetof(AscSceneNode, parent), offsetof(AscSceneNode, children), \ | |
| 37 offsetof(AscSceneNode, prev), offsetof(AscSceneNode, next) | |
| 38 #define child_list_off_ \ | 35 #define child_list_off_ \ |
| 39 offsetof(AscSceneNode, children), offsetof(AscSceneNode, next) | 36 offsetof(AscSceneNode, children), offsetof(AscSceneNode, next) |
| 40 | 37 |
| 41 void asc_scene_init(AscScene *scene) { | 38 void asc_scene_init(AscScene *scene) { |
| 42 if (scene->root != NULL) { | 39 if (scene->root != NULL) { |
| 59 CxTreeIterator iter = cx_tree_iterator(scene->root, false, child_list_off_); | 56 CxTreeIterator iter = cx_tree_iterator(scene->root, false, child_list_off_); |
| 60 | 57 |
| 61 // skip the root node deliberately, we know it's just the container | 58 // skip the root node deliberately, we know it's just the container |
| 62 cxIteratorNext(iter); | 59 cxIteratorNext(iter); |
| 63 | 60 |
| 64 // draw the children | 61 // update the children |
| 65 cx_foreach(AscSceneNode*, node, iter) { | 62 cx_foreach(AscSceneNode*, node, iter) { |
| 63 // execute behaviors, first | |
| 64 AscBehaviorNode *behavior = node->behaviors; | |
| 65 while (behavior) { | |
| 66 behavior->func(node); | |
| 67 behavior = behavior->next; | |
| 68 } | |
| 69 | |
| 70 // check if geometry needs update | |
| 66 if (node->need_update && node->update_func != NULL) { | 71 if (node->need_update && node->update_func != NULL) { |
| 67 node->need_update = false; | 72 node->need_update = false; |
| 68 asc_transform_copy(node->transform, node->parent->transform); | 73 asc_transform_copy(node->transform, node->parent->transform); |
| 69 node->update_func(node); | 74 node->update_func(node); |
| 70 } | 75 } |
| 76 | |
| 71 // TODO: don't visit the tree for drawing, visit the render groups | 77 // TODO: don't visit the tree for drawing, visit the render groups |
| 72 if (node->draw_func != NULL) { | 78 if (node->draw_func != NULL) { |
| 73 node->draw_func(node); | 79 node->draw_func(node); |
| 74 } | 80 } |
| 75 } | 81 } |
| 100 } | 106 } |
| 101 } | 107 } |
| 102 } | 108 } |
| 103 | 109 |
| 104 void asc_scene_node_link(AscSceneNode * restrict parent, AscSceneNode * restrict node) { | 110 void asc_scene_node_link(AscSceneNode * restrict parent, AscSceneNode * restrict node) { |
| 105 cx_tree_link(parent, node, node_layout_); | 111 cx_tree_link( |
| 112 parent, node, | |
| 113 offsetof(AscSceneNode, parent), | |
| 114 offsetof(AscSceneNode, children), | |
| 115 offsetof(AscSceneNode, prev), | |
| 116 offsetof(AscSceneNode, next) | |
| 117 ); | |
| 106 } | 118 } |
| 107 | 119 |
| 108 void asc_scene_node_unlink(AscSceneNode *node) { | 120 void asc_scene_node_unlink(AscSceneNode *node) { |
| 109 cx_tree_unlink(node, node_layout_); | 121 cx_tree_unlink( |
| 122 node, | |
| 123 offsetof(AscSceneNode, parent), | |
| 124 offsetof(AscSceneNode, children), | |
| 125 offsetof(AscSceneNode, prev), | |
| 126 offsetof(AscSceneNode, next) | |
| 127 ); | |
| 110 } | 128 } |
| 129 | |
| 130 AscBehaviorNode *asc_scene_add_behavior(AscSceneNode *node, asc_scene_update_func behavior) { | |
| 131 AscBehaviorNode *behavior_node = calloc(1, sizeof(AscBehaviorNode)); | |
| 132 behavior_node->func = behavior; | |
| 133 cx_tree_link( | |
| 134 node, | |
| 135 behavior_node, | |
| 136 offsetof(AscBehaviorNode, parent), | |
| 137 offsetof(AscSceneNode, behaviors), | |
| 138 offsetof(AscBehaviorNode, prev), | |
| 139 offsetof(AscBehaviorNode, next) | |
| 140 ); | |
| 141 return behavior_node; | |
| 142 } | |
| 143 | |
| 144 void asc_scene_remove_behavior(AscBehaviorNode *node) { | |
| 145 cx_tree_unlink( | |
| 146 node, | |
| 147 offsetof(AscBehaviorNode, parent), | |
| 148 offsetof(AscSceneNode, behaviors), | |
| 149 offsetof(AscBehaviorNode, prev), | |
| 150 offsetof(AscBehaviorNode, next) | |
| 151 ); | |
| 152 } |
