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authorColin Okay <colin@cicadas.surf>2022-07-22 11:58:16 -0500
committerColin Okay <colin@cicadas.surf>2022-07-22 11:58:16 -0500
commit00841605110612f6e7f3bbfc054ceff980bf25be (patch)
tree1f16b86d5c555eea22e60cb2d36f88682bd9023b /src/core/unit.lisp
parent6d9b8b48423dba99ecdba004f260c30e6717b6a6 (diff)
[version] [refactor] [redesign] removed containers
Diffstat (limited to 'src/core/unit.lisp')
-rw-r--r--src/core/unit.lisp116
1 files changed, 95 insertions, 21 deletions
diff --git a/src/core/unit.lisp b/src/core/unit.lisp
index e93ba56..e56c01f 100644
--- a/src/core/unit.lisp
+++ b/src/core/unit.lisp
@@ -1,33 +1,107 @@
-;;;; units/unit.lisp
+;;;; unit.lisp
(in-package #:wheelwork)
(defclass/std unit ()
- ((cached-application :a)
- (container :with :a)
- (visiblep :with :std t)))
+ ((cached-model cached-projected-matrix cached-rectangle :a)
+ (visiblep :with :std t)
+ (in-scene-p :with :a :std nil)
+ (region :with :std *application*
+ :doc "The screen region where the unit will be visible.")
+ (base-width base-height :r :std 1.0 :doc "Determined by content.")
+ (scale-x scale-y :std 1.0)
+ (rotation x y :std 0.0)))
+
+(defmethod render :around ((unit unit))
+ (when (unit-visiblep unit)
+ (let ((sb
+ (gl:get* :scissor-box))
+ (scale
+ (application-scale *application*)))
+ (with-slots (left right top bottom) (unit-region unit)
+ (gl:scissor (* left scale) (* bottom scale) (* scale (- right left)) (* scale (- top bottom)))
+ (call-next-method))
+ (gl:scissor (aref sb 0) (aref sb 1) (aref sb 2) (aref sb 3)))))
(defmethod (setf closer-mop:slot-value-using-class) :after
(newval class (unit unit) slot)
(case (closer-mop:slot-definition-name slot)
- (container
- (setf (cached-application unit) nil))))
+ ((x y scale-x scale-y rotation)
+ (setf (cached-model unit) nil
+ (cached-projected-matrix unit) nil
+ (cached-rectangle unit) nil))))
+(defun scale-by (unit amount)
+ (with-accessors ((sx scale-x) (sy scale-y)) unit
+ (setf sx (* amount sx)
+ sy (* amount sy))))
-(defun app-of-unit (unit)
- "Returns the APPLICATION instance, if any, of which this UNIT is a
-part. NIL indicates that the unit has not been added to any container
-in this application."
- (or (cached-application unit)
- (setf (cached-application unit)
- (labels ((rec (u)
- (etypecase u
- (application u)
- (unit (rec (unit-container u)))
- (nil nil))))
- (rec unit)))))
+(defun set-width-preserve-aspect (unit new-width)
+ (scale-by unit (/ new-width (width unit))))
+(defun set-height-preserve-aspect (unit new-height)
+ (scale-by unit (/ new-height (height unit) )))
-(defmethod render :around ((unit unit))
- (when (unit-visiblep unit)
- (call-next-method)))
+(defmethod width ((unit unit))
+ (with-slots (scale-x base-width) unit
+ (* scale-x base-width)))
+
+(defmethod height ((unit unit))
+ (with-slots (scale-y base-height) unit
+ (* scale-y base-height)))
+
+(defmethod (setf width) (newval (unit unit))
+ (with-slots (scale-x base-width) unit
+ (setf scale-x (coerce (/ newval base-width) 'single-float))))
+
+(defmethod (setf height) (newval (unit unit))
+ (with-slots (scale-y base-height) unit
+ (setf scale-y (coerce (/ newval base-height) 'single-float))))
+
+(defmethod model-matrix :around ((u unit))
+ (or (cached-model u)
+ (setf (cached-model u)
+ (call-next-method))))
+
+(defmethod model-matrix ((u unit))
+ (let ((m (mat:meye 4)))
+ (with-slots (x y base-width scale-x base-height scale-y rotation) u
+ (let ((uw (* base-width scale-x))
+ (uh (* base-height scale-y)))
+ (mat:nmtranslate m (vec:vec x y 0.0))
+
+ (mat:nmtranslate m (vec:v* 0.5 (vec:vec uw uh 0.0)))
+ (mat:nmrotate m vec:+vz+ rotation)
+ (mat:nmtranslate m (vec:v* -0.5 (vec:vec uw uh 0.0)))
+
+ (mat:nmscale m (vec:vec uw uh 1.0))))
+ m))
+
+
+(defun projected-matrix (unit)
+ (or (cached-projected-matrix unit)
+ (setf (cached-projected-matrix unit)
+ (mat:marr (mat:m* (application-projection *application*)
+ (model-matrix unit))))))
+
+(defmethod get-rect ((unit unit))
+ (or (cached-rectangle unit)
+ (setf (cached-rectangle unit)
+ (with-accessors ((x x) (y y) (w width) (h height) (r rotation)) unit
+ (let ((m
+ (mat:meye 4))
+ (tr
+ (vec:vec (+ x (* 0.5 w)) (+ y (* 0.5 h)) 0.0)))
+ (mat:nmtranslate m tr)
+ (mat:nmrotate m vec:+vz+ r)
+ (mat:nmtranslate m (vec:v* -1.0 tr))
+
+ (list (mat:m* m (vec:vec x y 0.0 1.0))
+ (mat:m* m (vec:vec x (+ y h) 0.0 1.0))
+ (mat:m* m (vec:vec (+ x w) (+ y h) 0.0 1.0))
+ (mat:m* m (vec:vec (+ x w) y 0.0 1.0))
+ (mat:m* m (vec:vec x y 0.0 1.0))))))))
+
+(defun units-intersect-p (au1 au2)
+ "Returns T if the two units AU1 an AU2 intersect. Both must implement GET-RECT."
+ (paths-intersect-p (get-rect au1) (get-rect au2)))