95 lines
2.5 KiB
Factor
95 lines
2.5 KiB
Factor
USING: arrays gadgets generic hashtables io kernel math
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namespaces opengl prettyprint sdl sequences threads ;
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IN: factoroids
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SYMBOL: player
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SYMBOL: actors
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: add-actor dup actors get push ;
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: remove-actor actors get delete ;
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TUPLE: actor model colors up expiry ;
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C: actor ( model colors position angle size -- actor )
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[ >r <body> r> set-delegate ] keep
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[ set-actor-colors ] keep
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[ set-actor-model ] keep ;
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TUPLE: projectile owner ;
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C: projectile ( actor owner -- projectile )
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[ set-projectile-owner ] keep
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[ set-delegate ] keep ;
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GENERIC: can-collide* ( actor actor -- ? )
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M: projectile can-collide* ( actor actor -- ? )
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over projectile? >r projectile-owner eq? r> or not ;
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M: actor can-collide* ( actor actor -- ) 2drop t ;
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GENERIC: collision
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M: actor collision ( actor actor -- ) drop remove-actor ;
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: can-collide? ( actor actor -- ? )
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2dup eq? [
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2drop f
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] [
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2dup can-collide* >r swap can-collide* r> and
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] if ;
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: collidable ( actor -- seq )
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actors get [ can-collide? ] subset-with ;
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: ?collision ( actor actor -- )
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2dup [ body-position ] 2apply v- norm 2 <=
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[ 2dup collision 2dup swap collision ] when 2drop ;
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: ?collisions ( actor -- )
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dup collidable [ ?collision ] each-with ;
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: ?expire-actor
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dup actor-expiry
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[ millis <= [ dup remove-actor ] when ] when* drop ;
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: actor-tick ( time actor -- )
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dup ?expire-actor dup ?collisions body-tick ;
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: draw-actor ( actor -- )
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GL_MODELVIEW [
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dup body-position gl-translate
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dup body-angle over body-up gl-rotate
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dup body-size gl-scale
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dup actor-colors swap actor-model draw-model
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] do-matrix ;
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: spawn-big-block ( position -- )
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>r cube { { 1/2 1/2 1 1 } } r> 360 random-int { 3 3 3 } <actor> add-actor ;
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: init-actors
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V{ } clone actors set
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{ 15 3 25 } spawn-big-block
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{ 20 2 25 } spawn-big-block
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{ 30 1 20 } spawn-big-block
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{ 30 1/2 15 } spawn-big-block
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factoroid { { 1 0 0 1 } { 2/3 0 0 1 } } { 25 1/2 25 } 0 { 3/4 1/4 2 } <actor> player set
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player get add-actor ;
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: draw-actors
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actors get [ draw-actor ] each ;
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: tick-actors ( time -- )
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actors get clone [ actor-tick ] each-with ;
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: add-expiring-actor ( actor time-to-live -- )
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millis + over set-actor-expiry add-actor ;
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: <rocket> ( position angle owner -- rocket )
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>r >r >r rocket { { 1 1 0 1 } { 1 1 1 1 } } r> r> { 1/2 1/2 5 }
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<actor> r> <projectile> 1/2000 over set-body-acceleration ;
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: spawn-rocket ( position angle owner -- )
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<rocket> 1000 add-expiring-actor ;
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