How to fuckin draw a rectangle?
This commit is contained in:
parent
a89db46fe7
commit
e5dfe002a0
13 changed files with 232 additions and 35 deletions
13
go.mod
13
go.mod
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@ -3,15 +3,16 @@ module github.com/surdeus/gox
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go 1.20
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require (
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github.com/ebitengine/purego v0.1.1 // indirect
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github.com/ebitengine/purego v0.4.0-alpha.4 // indirect
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b // indirect
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github.com/hajimehoshi/ebiten/v2 v2.4.16 // indirect
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github.com/hajimehoshi/ebiten/v2 v2.6.0-alpha.3.0.20230521122940-90562ee84b9b // indirect
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github.com/hajimehoshi/file2byteslice v1.0.0 // indirect
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github.com/jezek/xgb v1.1.0 // indirect
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github.com/surdeus/godat v0.0.0-20230428145139-f51a8ab74bc8 // indirect
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golang.org/x/exp v0.0.0-20230213192124-5e25df0256eb // indirect
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golang.org/x/exp/shiny v0.0.0-20230213192124-5e25df0256eb // indirect
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golang.org/x/image v0.5.0 // indirect
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golang.org/x/mobile v0.0.0-20221110043201-43a038452099 // indirect
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golang.org/x/sys v0.5.0 // indirect
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golang.org/x/exp/shiny v0.0.0-20230522175609-2e198f4a06a1 // indirect
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golang.org/x/image v0.7.0 // indirect
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golang.org/x/mobile v0.0.0-20230427221453-e8d11dd0ba41 // indirect
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golang.org/x/sync v0.2.0 // indirect
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golang.org/x/sys v0.8.0 // indirect
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)
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20
go.sum
20
go.sum
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@ -2,12 +2,16 @@ github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym
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github.com/ebitengine/purego v0.0.0-20220905075623-aeed57cda744/go.mod h1:Eh8I3yvknDYZeCuXH9kRNaPuHEwvXDCk378o9xszmHg=
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github.com/ebitengine/purego v0.1.1 h1:HI8nW+LniW9Yb34k34jBs8nz+PNzsw68o7JF8jWFHHE=
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github.com/ebitengine/purego v0.1.1/go.mod h1:Eh8I3yvknDYZeCuXH9kRNaPuHEwvXDCk378o9xszmHg=
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github.com/ebitengine/purego v0.4.0-alpha.4 h1:Y7yIV06Yo5M2BAdD7EVPhfp6LZ0tEcQo5770OhYUVes=
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github.com/ebitengine/purego v0.4.0-alpha.4/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20220806181222-55e207c401ad/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b h1:GgabKamyOYguHqHjSkDACcgoPIz3w0Dis/zJ1wyHHHU=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
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github.com/hajimehoshi/bitmapfont/v2 v2.2.2/go.mod h1:Ua/x9Dkz7M9CU4zr1VHWOqGwjKdXbOTRsH7lWfb1Co0=
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github.com/hajimehoshi/ebiten/v2 v2.4.16 h1:vhuMtaB78N2HlNMfImV/SZkDPNJhOxgFrEIm1uh838o=
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github.com/hajimehoshi/ebiten/v2 v2.4.16/go.mod h1:BZcqCU4XHmScUi+lsKexocWcf4offMFwfp8dVGIB/G4=
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github.com/hajimehoshi/ebiten/v2 v2.6.0-alpha.3.0.20230521122940-90562ee84b9b h1:QURPKDDBduvp9Zh5/4NeiPeUfpB4PokrfoH3tx4yNrg=
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github.com/hajimehoshi/ebiten/v2 v2.6.0-alpha.3.0.20230521122940-90562ee84b9b/go.mod h1:+fFI6Ag5YvbX1ivNQD2TxNhpWFDPuxEoew421TTQAxI=
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github.com/hajimehoshi/file2byteslice v0.0.0-20210813153925-5340248a8f41/go.mod h1:CqqAHp7Dk/AqQiwuhV1yT2334qbA/tFWQW0MD2dGqUE=
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github.com/hajimehoshi/file2byteslice v1.0.0 h1:ljd5KTennqyJ4vG9i/5jS8MD1prof97vlH5JOdtw3WU=
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github.com/hajimehoshi/file2byteslice v1.0.0/go.mod h1:CqqAHp7Dk/AqQiwuhV1yT2334qbA/tFWQW0MD2dGqUE=
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@ -40,28 +44,39 @@ golang.org/x/exp v0.0.0-20230213192124-5e25df0256eb h1:PaBZQdo+iSDyHT053FjUCgZQ/
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golang.org/x/exp v0.0.0-20230213192124-5e25df0256eb/go.mod h1:CxIveKay+FTh1D0yPZemJVgC/95VzuuOLq5Qi4xnoYc=
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golang.org/x/exp/shiny v0.0.0-20230213192124-5e25df0256eb h1:gdeQX7xJSkTNF+Sw7++XNIOo4pGL0CjQv3N2Vm1Erxk=
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golang.org/x/exp/shiny v0.0.0-20230213192124-5e25df0256eb/go.mod h1:UH99kUObWAZkDnWqppdQe5ZhPYESUw8I0zVV1uWBR+0=
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golang.org/x/exp/shiny v0.0.0-20230522175609-2e198f4a06a1 h1:NxHSRPlbeyFGDc6rU7YsvxV/4bXS9XhuvUt5pP63XUs=
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golang.org/x/exp/shiny v0.0.0-20230522175609-2e198f4a06a1/go.mod h1:UH99kUObWAZkDnWqppdQe5ZhPYESUw8I0zVV1uWBR+0=
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golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.1.0/go.mod h1:iyPr49SD/G/TBxYVB/9RRtGUT5eNbo2u4NamWeQcD5c=
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golang.org/x/image v0.5.0 h1:5JMiNunQeQw++mMOz48/ISeNu3Iweh/JaZU8ZLqHRrI=
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golang.org/x/image v0.5.0/go.mod h1:FVC7BI/5Ym8R25iw5OLsgshdUBbT1h5jZTpA+mvAdZ4=
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golang.org/x/image v0.7.0 h1:gzS29xtG1J5ybQlv0PuyfE3nmc6R4qB73m6LUUmvFuw=
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golang.org/x/image v0.7.0/go.mod h1:nd/q4ef1AKKYl/4kft7g+6UyGbdiqWqTP1ZAbRoV7Rg=
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golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
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golang.org/x/mobile v0.0.0-20190415191353-3e0bab5405d6/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
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golang.org/x/mobile v0.0.0-20220722155234-aaac322e2105/go.mod h1:pe2sM7Uk+2Su1y7u/6Z8KJ24D7lepUjFZbhFOrmDfuQ=
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golang.org/x/mobile v0.0.0-20221110043201-43a038452099 h1:aIu0lKmfdgtn2uTj7JI2oN4TUrQvgB+wzTPO23bCKt8=
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golang.org/x/mobile v0.0.0-20221110043201-43a038452099/go.mod h1:aAjjkJNdrh3PMckS4B10TGS2nag27cbKR1y2BpUxsiY=
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golang.org/x/mobile v0.0.0-20230427221453-e8d11dd0ba41 h1:539vykMVJsmdiucRtMmdeLLZaTVhWhaAHFcPabj2lws=
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golang.org/x/mobile v0.0.0-20230427221453-e8d11dd0ba41/go.mod h1:aAjjkJNdrh3PMckS4B10TGS2nag27cbKR1y2BpUxsiY=
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golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
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golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
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golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
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golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
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golang.org/x/sync v0.2.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@ -77,19 +92,24 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
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golang.org/x/sys v0.0.0-20220818161305-2296e01440c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
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golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
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golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
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golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.1.8-0.20211022200916-316ba0b74098/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
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golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
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golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
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golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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@ -127,5 +127,16 @@ func main() {
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e.Add(0, NewPlayer())
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e.Add(1, &Debug{})
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e.Add(100, gx.Rectangle{
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W: 10000000,
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H: 10000000,
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T: gx.T(),
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C: gx.Color{
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gx.MaxColorV,
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gx.MaxColorV,
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gx.MaxColorV,
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gx.MaxColorV,
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},
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})
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e.Run()
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}
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@ -1,14 +1,15 @@
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package gx
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// The structure represents any circles.
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type Circle struct {
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// Position
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// Position.
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P Point
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// Radius
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// Radius.
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R Float
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}
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func (c Circle) ColliderSimplify() Rect {
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return Rect{
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func (c Circle) ColliderSimplify() Rectangle {
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return Rectangle{
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W: c.R * 2,
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H: c.R * 2,
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}
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@ -7,19 +7,19 @@ package gx
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// contain more complicated structure
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// do collide.
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type ColliderSimplifier interface {
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ColliderSimplify() Rect
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ColliderSimplify() Triangle
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}
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// The structure represents all
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// information on collision.
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// information on collisions.
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type Collision struct {
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Other Collider
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Current, With any
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}
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// Every collider has to implement
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// collision with every other type of collider
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// for optimization. Not good for custom colliders
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// but is fast.
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// Implementing the interface lets the engine
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// to determine if the object collides with anything.
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// Mostly will use the Collide function with some
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// inner structure field as first argument.
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type Collider interface {
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Collides(Collider) *Collision
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}
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@ -30,3 +30,16 @@ type CollideEventer interface {
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Collide(*Collision)
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}
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// Single function for all collision to remove
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// functionality duplicating from the archtecture.
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// Returns the collision if there is and nil if there
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// is no collision.
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/*func Collide(c1, c2 any) bool {
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}
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func triangleCollidesPoint(t Triangle, p Point) *Collision {
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}
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func triangleCollidesTriangle(t1, t2 Triangle) *Collision
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*/
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@ -5,9 +5,15 @@ import (
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"image"
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_ "image/png"
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"io"
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"math"
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)
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type ColorV uint32
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type Image = ebiten.Image
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type ColorM = ebiten.ColorM
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type Color struct {
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R, G, B, A ColorV
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}
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// The interface describes anything that can be
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// drawn. It will be drew corresponding to
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@ -16,6 +22,10 @@ type Drawer interface {
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Draw(*Engine, *Image)
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}
|
||||
|
||||
const (
|
||||
MaxColorV = math.MaxUint32
|
||||
)
|
||||
|
||||
func LoadImage(input io.Reader) (*Image, error) {
|
||||
img, _, err := image.Decode(input)
|
||||
if err != nil {
|
||||
|
|
@ -26,3 +36,7 @@ func LoadImage(input io.Reader) (*Image, error) {
|
|||
return ret, nil
|
||||
}
|
||||
|
||||
func (c Color) RGBA() (r, g, b, a uint32) {
|
||||
return uint32(c.R), uint32(c.G), uint32(c.B), uint32(c.A)
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,4 @@
|
|||
package gx
|
||||
|
||||
type LineSegment struct {
|
||||
P Point
|
||||
V Vector
|
||||
}
|
||||
type LineSegment [2]Point
|
||||
|
||||
|
|
|
|||
|
|
@ -7,6 +7,7 @@ import (
|
|||
"github.com/surdeus/godat/src/poolx"
|
||||
//"fmt"
|
||||
"time"
|
||||
"math"
|
||||
)
|
||||
|
||||
// The type is used in all Engine interactions
|
||||
|
|
@ -37,6 +38,10 @@ type Engine struct {
|
|||
|
||||
type engine Engine
|
||||
|
||||
var (
|
||||
Infinity = math.MaxFloat64
|
||||
)
|
||||
|
||||
// Return current camera.
|
||||
func (e *Engine) Camera() *Camera {
|
||||
return e.camera
|
||||
|
|
@ -76,12 +81,12 @@ func New(
|
|||
func (e *Engine) Add(l Layer, b any) {
|
||||
beh, ok := b.(Behaver)
|
||||
if ok {
|
||||
e.AddBehaver(beh)
|
||||
e.addBehaver(beh)
|
||||
}
|
||||
|
||||
drw, ok := b.(Drawer)
|
||||
if ok {
|
||||
e.AddDrawer(l, drw)
|
||||
e.addDrawer(l, drw)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -101,7 +106,7 @@ func (e *Engine) Del(b any) {
|
|||
|
||||
}
|
||||
|
||||
func (e *Engine) AddDrawer(l Layer, d Drawer) {
|
||||
func (e *Engine) addDrawer(l Layer, d Drawer) {
|
||||
g, ok := e.layers.Get(l)
|
||||
if !ok {
|
||||
layer := poolx.New[Drawer]()
|
||||
|
|
@ -116,7 +121,7 @@ func (e *Engine) AddDrawer(l Layer, d Drawer) {
|
|||
|
||||
}
|
||||
|
||||
func (e *Engine) AddBehaver(b Behaver) {
|
||||
func (e *Engine) addBehaver(b Behaver) {
|
||||
e.behavers.Append(b)
|
||||
b.Start(e)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,16 +1,84 @@
|
|||
package gx
|
||||
|
||||
import (
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
//"github.com/hajimehoshi/ebiten/v2/vector"
|
||||
"fmt"
|
||||
//"image"
|
||||
)
|
||||
|
||||
// The type describes rectangle geometry.
|
||||
type Rect struct {
|
||||
// Position and rotate around.
|
||||
P, RA Point
|
||||
type Rectangle struct {
|
||||
// Position of up left corner
|
||||
// and the point to
|
||||
// rotate around(relatively of position, not absolute).
|
||||
T Transform
|
||||
// Width and height.
|
||||
// In fact are needed only to specify
|
||||
// relation of width and height.
|
||||
// Change transform to actually change things.
|
||||
W, H Float
|
||||
// Rotation in radians.
|
||||
R Float
|
||||
S *Shader
|
||||
C Color
|
||||
}
|
||||
|
||||
func (r Rect) ColliderSimplify() Rect {
|
||||
return r
|
||||
// Return points of corners of the rectangle.
|
||||
func (r Rectangle) Corners() []Point {
|
||||
return []Point{}
|
||||
}
|
||||
|
||||
// Get 2 triangles that the rectangle consists of.
|
||||
func (r Rectangle) Triangles() Triangles {
|
||||
return Triangles{}
|
||||
}
|
||||
|
||||
/*func MustNewImage(w, h int) (*Image) {
|
||||
img, err := NewImage(w, h)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return img
|
||||
}*/
|
||||
|
||||
func NewImage(w, h int) (*Image) {
|
||||
return ebiten.NewImage(w, h)
|
||||
}
|
||||
|
||||
func (r Rectangle) Draw(
|
||||
e *Engine,
|
||||
i *Image,
|
||||
) {
|
||||
fmt.Println("drawing the rectangle")
|
||||
if r.S == nil {
|
||||
img := NewImage(1, 1)
|
||||
img.Set(0, 0, r.C)
|
||||
|
||||
t := r.T
|
||||
t.S.X *= r.W
|
||||
t.S.Y *= r.H
|
||||
|
||||
m := t.Matrix(e)
|
||||
opts := &ebiten.DrawImageOptions{
|
||||
GeoM: m,
|
||||
}
|
||||
i.DrawImage(img, opts)
|
||||
fmt.Println("done")
|
||||
return
|
||||
}
|
||||
opts := &ebiten.DrawRectShaderOptions{
|
||||
GeoM: r.T.Matrix(e),
|
||||
Images: [4]*Image{
|
||||
NewImage(1000, 1000),
|
||||
nil,
|
||||
nil,
|
||||
nil,
|
||||
},
|
||||
}
|
||||
|
||||
//w := int(r.W * r.T.S.X)
|
||||
//h := int(r.H * r.T.S.Y)
|
||||
|
||||
i.DrawRectShader(1000, 1000, r.S, opts)
|
||||
}
|
||||
|
||||
|
|
|
|||
33
src/gx/shader.go
Normal file
33
src/gx/shader.go
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
package gx
|
||||
|
||||
import (
|
||||
"github.com/hajimehoshi/ebiten/v2"
|
||||
//"fmt"
|
||||
)
|
||||
|
||||
type Shader = ebiten.Shader
|
||||
|
||||
var (
|
||||
// The shader does not
|
||||
SolidColorShader = MustNewShader([]byte(`
|
||||
package main
|
||||
|
||||
func Fragment(p vec4, coord vec2, color vec4) vec4 {
|
||||
return vec4(1, 0, 1, 1)
|
||||
}
|
||||
`))
|
||||
)
|
||||
|
||||
func MustNewShader(src []byte) (*Shader) {
|
||||
shader, err := NewShader(src)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return shader
|
||||
}
|
||||
|
||||
func NewShader(src []byte) (*Shader, error) {
|
||||
return ebiten.NewShader(src)
|
||||
}
|
||||
|
||||
|
|
@ -7,6 +7,7 @@ import (
|
|||
type Sprite struct {
|
||||
I *Image
|
||||
T Transform
|
||||
S *Shader
|
||||
Floating bool
|
||||
}
|
||||
|
||||
|
|
@ -14,7 +15,9 @@ func (s *Sprite) Draw(
|
|||
e *Engine,
|
||||
i *Image,
|
||||
) {
|
||||
op := &ebiten.DrawImageOptions{}
|
||||
op := &ebiten.DrawImageOptions{
|
||||
|
||||
}
|
||||
m := &Matrix{}
|
||||
|
||||
m.Concat(s.T.Matrix(e))
|
||||
|
|
@ -26,6 +29,10 @@ func (s *Sprite) Draw(
|
|||
}
|
||||
|
||||
op.GeoM = *m
|
||||
/*if s.S != nil {
|
||||
bufImg := ebiten.NewImageFromImage(s.I)
|
||||
} */
|
||||
|
||||
i.DrawImage(s.I, op)
|
||||
}
|
||||
|
||||
|
|
|
|||
9
src/gx/time.go
Normal file
9
src/gx/time.go
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
package gx
|
||||
|
||||
import (
|
||||
"time"
|
||||
)
|
||||
|
||||
type Time = time.Time
|
||||
type Duration = time.Duration
|
||||
|
||||
|
|
@ -1,6 +1,24 @@
|
|||
package gx
|
||||
|
||||
type Triangle struct {
|
||||
Points [3]Point
|
||||
import (
|
||||
"math"
|
||||
)
|
||||
|
||||
// The structure of a triangle. What more you want to hear?
|
||||
type Triangle [3]Point
|
||||
type Triangles []Triangle
|
||||
|
||||
// Returns the area of the triangle.
|
||||
func (t Triangle) Area() Float {
|
||||
x1 := t[0].X
|
||||
y1 := t[0].Y
|
||||
|
||||
x2 := t[1].X
|
||||
y2 := t[1].Y
|
||||
|
||||
x3 := t[2].X
|
||||
y3 := t[2].Y
|
||||
|
||||
return math.Abs( (x1*(y2-y3) + x2*(y3-y1) + x3*(y1-y2))/2)
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue