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authorTavian Barnes <tavianator@gmail.com>2009-10-30 02:08:59 -0400
committerTavian Barnes <tavianator@gmail.com>2009-10-30 02:08:59 -0400
commitc381b926bc49f0f8c6b841bf67bf0ecf4bf8fdad (patch)
treef9a97a0f741ade7a6dded8c2ff5acdf93675d49f /dimension/realize.c
parent7dcf2843272e122ebbaff2f090d630e4f9436d1c (diff)
downloaddimension-c381b926bc49f0f8c6b841bf67bf0ecf4bf8fdad.tar.xz
(Sort of) realize boxes.
We now have a working rendering from an SDL input, kinda!
Diffstat (limited to 'dimension/realize.c')
-rw-r--r--dimension/realize.c71
1 files changed, 70 insertions, 1 deletions
diff --git a/dimension/realize.c b/dimension/realize.c
index 67536e6..5df2648 100644
--- a/dimension/realize.c
+++ b/dimension/realize.c
@@ -21,6 +21,29 @@
#include "parse.h"
#include "utility.h"
+static dmnsn_vector
+dmnsn_realize_vector(dmnsn_astnode astnode)
+{
+ if (astnode.type != DMNSN_AST_VECTOR) {
+ dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a vector.");
+ }
+
+ dmnsn_astnode xnode, ynode, znode;
+ dmnsn_array_get(astnode.children, 0, &xnode);
+ dmnsn_array_get(astnode.children, 1, &ynode);
+ dmnsn_array_get(astnode.children, 2, &znode);
+
+ if (xnode.type != DMNSN_AST_FLOAT
+ || ynode.type != DMNSN_AST_FLOAT
+ || znode.type != DMNSN_AST_FLOAT)
+ {
+ dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a float.");
+ }
+
+ double *x = xnode.ptr, *y = ynode.ptr, *z = znode.ptr;
+ return dmnsn_vector_construct(*x, *y, *z);
+}
+
dmnsn_scene *
dmnsn_realize(const dmnsn_array *astree)
{
@@ -30,8 +53,9 @@ dmnsn_realize(const dmnsn_array *astree)
}
/* Background color */
- dmnsn_sRGB background_sRGB = { .R = 0.0, .G = 0.05, .B = 0.1 };
+ dmnsn_sRGB background_sRGB = { .R = 0.0, .G = 0.0, .B = 0.1 };
scene->background = dmnsn_color_from_sRGB(background_sRGB);
+ scene->background.filter = 0.1;
/* Allocate a canvas */
scene->canvas = dmnsn_new_canvas(768, 480);
@@ -61,6 +85,43 @@ dmnsn_realize(const dmnsn_array *astree)
dmnsn_delete_realized_scene(scene);
return NULL;
}
+ dmnsn_set_perspective_camera_trans(scene->camera, trans);
+
+ /*
+ * Now parse the abstract syntax tree
+ */
+
+ dmnsn_astnode astnode;
+ unsigned int i;
+
+ for (i = 0; i < dmnsn_array_size(astree); ++i) {
+ dmnsn_array_get(astree, i, &astnode);
+
+ if (astnode.type != DMNSN_AST_BOX) {
+ dmnsn_error(DMNSN_SEVERITY_HIGH, "We only handle boxes right now.");
+ }
+
+ dmnsn_astnode corner1, corner2;
+ dmnsn_array_get(astnode.children, 0, &corner1);
+ dmnsn_array_get(astnode.children, 1, &corner2);
+
+ dmnsn_vector x1 = dmnsn_realize_vector(corner1),
+ x2 = dmnsn_realize_vector(corner2);
+
+ dmnsn_object *box = dmnsn_new_cube();
+ box->trans = dmnsn_scale_matrix(dmnsn_vector_construct((x2.x - x1.x)/2.0,
+ (x2.y - x1.y)/2.0,
+ (x2.z - x1.z)/2.0));
+ box->trans = dmnsn_matrix_mul(
+ dmnsn_translation_matrix(dmnsn_vector_construct((x2.x + x1.x)/2.0,
+ (x2.y + x1.y)/2.0,
+ (x2.z + x1.z)/2.0)),
+ box->trans
+ );
+ box->trans = dmnsn_matrix_inverse(box->trans);
+
+ dmnsn_array_push(scene->objects, &box);
+ }
return scene;
}
@@ -68,6 +129,14 @@ dmnsn_realize(const dmnsn_array *astree)
void
dmnsn_delete_realized_scene(dmnsn_scene *scene)
{
+ dmnsn_object *object;
+ unsigned int i;
+
+ for (i = 0; i < dmnsn_array_size(scene->objects); ++i) {
+ dmnsn_array_get(scene->objects, i, &object);
+ dmnsn_delete_object(object);
+ }
+
dmnsn_delete_camera(scene->camera);
dmnsn_delete_canvas(scene->canvas);
dmnsn_delete_scene(scene);