initial commit
This commit is contained in:
4
.gitignore
vendored
Normal file
4
.gitignore
vendored
Normal file
@@ -0,0 +1,4 @@
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.claude
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.local
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.vscode
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rabbitroller
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76
Makefile
Normal file
76
Makefile
Normal file
@@ -0,0 +1,76 @@
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# -----------------------------------------
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# Makefile – Ebitengine project builder
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# -----------------------------------------
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PROJECT = rabbitroller
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BIN_DIR = bin
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DIST_DIR = dist
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WASM_NAME = game.wasm
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OUTPUT_BIN = $(BIN_DIR)/$(PROJECT)
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OUTPUT_WASM = $(DIST_DIR)/$(WASM_NAME)
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OUTPUT_JS = $(DIST_DIR)/wasm_exec.js
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OUTPUT_ZIP = $(PROJECT)-$(VERSION).html.zip
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VERSION_FILE = .version
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INDEX_HTML_URL = https://git.teletype.hu/tools/ebitengine-tools/raw/branch/master/web/index.html
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all: build
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build:
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@mkdir -p $(BIN_DIR)
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go build -o $(OUTPUT_BIN) .
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wasm:
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@mkdir -p $(DIST_DIR)
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GOOS=js GOARCH=wasm go build -o $(OUTPUT_WASM) .
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cp "$$(go env GOROOT)/lib/wasm/wasm_exec.js" $(OUTPUT_JS)
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export: wasm
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@if [ -z "$(VERSION)" ]; then \
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echo "ERROR: VERSION not set!"; exit 1; \
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fi
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@echo "==> Downloading index.html"
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curl -sSL $(INDEX_HTML_URL) -o $(DIST_DIR)/index.html
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@echo "==> Packaging HTML/WASM for $(VERSION)"
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zip -r $(OUTPUT_ZIP) -j $(DIST_DIR)/$(WASM_NAME) $(DIST_DIR)/wasm_exec.js $(DIST_DIR)/index.html
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@echo "==> Cleaning temporary files"
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rm -f $(DIST_DIR)/$(WASM_NAME) $(DIST_DIR)/wasm_exec.js $(DIST_DIR)/index.html
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watch:
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fswatch -o . | while read; do make build; done
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clean:
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rm -rf $(BIN_DIR) $(DIST_DIR)
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ci-version:
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@if [ -f metadata.json ]; then \
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VERSION=$$(jq -r '.version' metadata.json); \
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else \
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VERSION=$$(git rev-parse --short HEAD); \
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fi; \
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BRANCH=$$(git rev-parse --abbrev-ref HEAD); \
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if [ "$$BRANCH" != "main" ] && [ "$$BRANCH" != "master" ]; then \
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VERSION="dev-$$VERSION-$$BRANCH"; \
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fi; \
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echo $$VERSION > $(VERSION_FILE)
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ci-export:
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@VERSION=$$(cat $(VERSION_FILE)); \
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$(MAKE) export VERSION=$$VERSION
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ci-upload:
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@VERSION=$$(cat $(VERSION_FILE)); \
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FILE="$(PROJECT)-$$VERSION.html.zip"; \
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META_SRC="metadata.json"; \
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META_DST="$(PROJECT)-$$VERSION.metadata.json"; \
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cp $$META_SRC $$META_DST; \
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sshpass -p "$(DROPAREA_SSH_PASSWORD)" scp -o StrictHostKeyChecking=no -P $(DROPAREA_PORT) \
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$$FILE $$META_DST \
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$(DROPAREA_USER)@$(DROPAREA_HOST):$(DROPAREA_TARGET_PATH)/
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ci-update:
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@VERSION=$$(cat $(VERSION_FILE)); \
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curl "$(UPDATE_SERVER)/update?secret=$(UPDATE_SECRET)&name=$(PROJECT)&platform=ebitengine&version=$$VERSION"
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.PHONY: all build wasm export watch clean ci-version ci-export ci-upload ci-update
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20
go.mod
Normal file
20
go.mod
Normal file
@@ -0,0 +1,20 @@
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module rabbitroller
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go 1.26.3
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require (
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github.com/hajimehoshi/ebiten/v2 v2.9.9
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golang.org/x/image v0.40.0
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)
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require (
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github.com/ebitengine/gomobile v0.0.0-20250923094054-ea854a63cce1 // indirect
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github.com/ebitengine/hideconsole v1.0.0 // indirect
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github.com/ebitengine/purego v0.9.0 // indirect
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github.com/go-text/typesetting v0.3.0 // indirect
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github.com/jezek/xgb v1.1.1 // indirect
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github.com/rivo/uniseg v0.4.7 // indirect
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golang.org/x/sync v0.20.0 // indirect
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golang.org/x/sys v0.36.0 // indirect
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golang.org/x/text v0.37.0 // indirect
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)
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28
go.sum
Normal file
28
go.sum
Normal file
@@ -0,0 +1,28 @@
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github.com/ebitengine/gomobile v0.0.0-20250923094054-ea854a63cce1 h1:+kz5iTT3L7uU+VhlMfTb8hHcxLO3TlaELlX8wa4XjA0=
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github.com/ebitengine/gomobile v0.0.0-20250923094054-ea854a63cce1/go.mod h1:lKJoeixeJwnFmYsBny4vvCJGVFc3aYDalhuDsfZzWHI=
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github.com/ebitengine/hideconsole v1.0.0 h1:5J4U0kXF+pv/DhiXt5/lTz0eO5ogJ1iXb8Yj1yReDqE=
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github.com/ebitengine/hideconsole v1.0.0/go.mod h1:hTTBTvVYWKBuxPr7peweneWdkUwEuHuB3C1R/ielR1A=
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github.com/ebitengine/purego v0.9.0 h1:mh0zpKBIXDceC63hpvPuGLiJ8ZAa3DfrFTudmfi8A4k=
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github.com/ebitengine/purego v0.9.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
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github.com/go-text/typesetting v0.3.0 h1:OWCgYpp8njoxSRpwrdd1bQOxdjOXDj9Rqart9ML4iF4=
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github.com/go-text/typesetting v0.3.0/go.mod h1:qjZLkhRgOEYMhU9eHBr3AR4sfnGJvOXNLt8yRAySFuY=
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github.com/go-text/typesetting-utils v0.0.0-20241103174707-87a29e9e6066 h1:qCuYC+94v2xrb1PoS4NIDe7DGYtLnU2wWiQe9a1B1c0=
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github.com/go-text/typesetting-utils v0.0.0-20241103174707-87a29e9e6066/go.mod h1:DDxDdQEnB70R8owOx3LVpEFvpMK9eeH1o2r0yZhFI9o=
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github.com/hajimehoshi/bitmapfont/v4 v4.1.0 h1:eE3qa5Do4qhowZVIHjsrX5pYyyPN6sAFWMsO7QREm3U=
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github.com/hajimehoshi/bitmapfont/v4 v4.1.0/go.mod h1:/PD+aLjAJ0F2UoQx6hkOfXqWN7BkroDUMr5W+IT1dpE=
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github.com/hajimehoshi/ebiten/v2 v2.9.9 h1:JdDag6Ndj12iD4lxQGG8kbsrh7ssj4Sbzth6r929H/M=
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github.com/hajimehoshi/ebiten/v2 v2.9.9/go.mod h1:DAt4tnkYYpCvu3x9i1X/nK/vOruNXIlYq/tBXxnhrXM=
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github.com/jezek/xgb v1.1.1 h1:bE/r8ZZtSv7l9gk6nU0mYx51aXrvnyb44892TwSaqS4=
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github.com/jezek/xgb v1.1.1/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
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github.com/pierrec/lz4/v4 v4.1.22 h1:cKFw6uJDK+/gfw5BcDL0JL5aBsAFdsIT18eRtLj7VIU=
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github.com/pierrec/lz4/v4 v4.1.22/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
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github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
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github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
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golang.org/x/image v0.40.0 h1:Tw4GyDXMo+daZN1znreBRC3VayR1aLFUyUEOLUdW1a8=
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golang.org/x/image v0.40.0/go.mod h1:uIc348UZMSvS5Z65CVZ7iDPaNobNFEPeJ4kbqTOszmA=
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golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
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golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
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golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
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golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
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golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
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golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
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354
main.go
Normal file
354
main.go
Normal file
@@ -0,0 +1,354 @@
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package main
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import (
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"fmt"
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"image/color"
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"log"
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"math"
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"math/rand"
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"sort"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/inpututil"
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"github.com/hajimehoshi/ebiten/v2/text/v2"
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"github.com/hajimehoshi/ebiten/v2/vector"
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"golang.org/x/image/font/basicfont"
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)
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const (
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screenW = 240
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screenH = 136
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scale = 4
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nLanes = 5
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horizonY = 28.0
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horizonX = 120.0
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playerY = 116.0
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maxMiss = 3
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)
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var laneX = [nLanes]float32{40, 80, 120, 160, 200}
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// Sweetie-16 palette
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var (
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lcdBg = color.RGBA{0xf4, 0xf4, 0xf4, 0xff} // #12
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lcdFg = color.RGBA{0x1a, 0x1c, 0x2c, 0xff} // #0
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lcdDim = color.RGBA{0x94, 0xb0, 0xc2, 0xff} // #13
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)
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type stateKind int
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const (
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stateTitle stateKind = iota
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statePlay
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stateOver
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)
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type rabbit struct {
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lane int
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t float64
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speed float64
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}
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type Game struct {
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state stateKind
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playerLane int
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score int
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miss int
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rabbits []*rabbit
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spawnTimer int
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frame int
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flash int
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font *text.GoXFace
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}
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func newGame() *Game {
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return &Game{
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state: stateTitle,
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playerLane: 2,
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font: text.NewGoXFace(basicfont.Face7x13),
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}
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}
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func (g *Game) reset() {
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g.playerLane = 2
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g.score = 0
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g.miss = 0
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g.rabbits = g.rabbits[:0]
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g.spawnTimer = 0
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g.flash = 0
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}
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// btnp(key, hold, period): fires on press, then every `period` frames after held for `hold` frames.
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func pressedRepeat(key ebiten.Key, hold, period int) bool {
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if inpututil.IsKeyJustPressed(key) {
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return true
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}
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d := inpututil.KeyPressDuration(key)
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if d > hold && (d-hold)%period == 0 {
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return true
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}
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return false
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}
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func startPressed() bool {
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return inpututil.IsKeyJustPressed(ebiten.KeyZ) ||
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inpututil.IsKeyJustPressed(ebiten.KeySpace) ||
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inpututil.IsKeyJustPressed(ebiten.KeyEnter)
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}
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func (g *Game) spawnRabbit() {
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r := &rabbit{
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lane: rand.Intn(nLanes),
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t: 0,
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speed: 0.010 + rand.Float64()*0.006 + math.Min(float64(g.score), 60)*0.0002,
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}
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g.rabbits = append(g.rabbits, r)
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}
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func rabbitPos(r *rabbit) (float32, float32) {
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endX := float64(laneX[r.lane])
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endY := playerY - 6.0
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x := horizonX + (endX-horizonX)*(r.t*r.t)
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y := horizonY + (endY-horizonY)*r.t
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hop := math.Abs(math.Sin(r.t*14)) * (2 + r.t*4)
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return float32(x), float32(y - hop)
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}
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func (g *Game) updatePlay() {
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if pressedRepeat(ebiten.KeyLeft, 12, 6) && g.playerLane > 0 {
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g.playerLane--
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}
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if pressedRepeat(ebiten.KeyRight, 12, 6) && g.playerLane < nLanes-1 {
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g.playerLane++
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}
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g.spawnTimer++
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interval := 70 - g.score/2
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if interval < 22 {
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interval = 22
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}
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if g.spawnTimer >= interval {
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g.spawnTimer = 0
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g.spawnRabbit()
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}
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for i := len(g.rabbits) - 1; i >= 0; i-- {
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r := g.rabbits[i]
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r.t += r.speed
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if r.t >= 1 {
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if r.lane == g.playerLane {
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||||
g.miss++
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g.flash = 12
|
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if g.miss >= maxMiss {
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g.state = stateOver
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}
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} else {
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g.score++
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}
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g.rabbits = append(g.rabbits[:i], g.rabbits[i+1:]...)
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}
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}
|
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|
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if g.flash > 0 {
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g.flash--
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}
|
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}
|
||||
|
||||
// --- drawing primitives wrapping ebiten/vector ---
|
||||
|
||||
func px(dst *ebiten.Image, x, y float32, c color.Color) {
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vector.DrawFilledRect(dst, x, y, 1, 1, c, false)
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||||
}
|
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|
||||
func line(dst *ebiten.Image, x1, y1, x2, y2 float32, c color.Color) {
|
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vector.StrokeLine(dst, x1, y1, x2, y2, 1, c, false)
|
||||
}
|
||||
|
||||
func rectFill(dst *ebiten.Image, x, y, w, h float32, c color.Color) {
|
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vector.DrawFilledRect(dst, x, y, w, h, c, false)
|
||||
}
|
||||
|
||||
func rectStroke(dst *ebiten.Image, x, y, w, h float32, c color.Color) {
|
||||
vector.StrokeRect(dst, x, y, w, h, 1, c, false)
|
||||
}
|
||||
|
||||
func circFill(dst *ebiten.Image, cx, cy, r float32, c color.Color) {
|
||||
vector.DrawFilledCircle(dst, cx, cy, r, c, false)
|
||||
}
|
||||
|
||||
func circStroke(dst *ebiten.Image, cx, cy, r float32, c color.Color) {
|
||||
vector.StrokeCircle(dst, cx, cy, r, 1, c, false)
|
||||
}
|
||||
|
||||
func drawText(dst *ebiten.Image, s string, x, y float64, face *text.GoXFace, c color.Color) {
|
||||
opts := &text.DrawOptions{}
|
||||
opts.GeoM.Translate(x, y)
|
||||
opts.ColorScale.ScaleWithColor(c)
|
||||
text.Draw(dst, s, face, opts)
|
||||
}
|
||||
|
||||
// --- scene drawing ---
|
||||
|
||||
func (g *Game) drawRoad(dst *ebiten.Image) {
|
||||
// trapezoidal road outline
|
||||
line(dst, horizonX-20, horizonY, 0, 136, lcdFg)
|
||||
line(dst, horizonX+20, horizonY, 239, 136, lcdFg)
|
||||
// shoulder hash marks (perspective)
|
||||
for i := 1; i <= 6; i++ {
|
||||
t := float32(i) / 7.0
|
||||
y := float32(horizonY) + (136-float32(horizonY))*t
|
||||
lx := (float32(horizonX) - 20) + (0-(float32(horizonX)-20))*t
|
||||
rx := (float32(horizonX) + 20) + (239-(float32(horizonX)+20))*t
|
||||
px(dst, lx-1, y, lcdDim)
|
||||
px(dst, rx+1, y, lcdDim)
|
||||
}
|
||||
// left tree
|
||||
rectFill(dst, 14, 44, 3, 10, lcdFg)
|
||||
circFill(dst, 15, 42, 5, lcdFg)
|
||||
// right field hint
|
||||
for i := 0; i < 5; i++ {
|
||||
fi := float32(i)
|
||||
line(dst, 225, 50+fi*4, 235, 46+fi*4, lcdDim)
|
||||
}
|
||||
}
|
||||
|
||||
func (g *Game) drawHud(dst *ebiten.Image) {
|
||||
drawText(dst, "SCORE", 4, 2, g.font, lcdFg)
|
||||
drawText(dst, fmt.Sprintf("%03d", g.score), 40, 2, g.font, lcdFg)
|
||||
drawText(dst, "MISS", 170, 2, g.font, lcdFg)
|
||||
for i := 0; i < g.miss; i++ {
|
||||
drawText(dst, "X", float64(206+i*8), 2, g.font, lcdFg)
|
||||
}
|
||||
}
|
||||
|
||||
func drawRabbit(dst *ebiten.Image, x, y float32, t float64) {
|
||||
s := float32(1 + int(t*3))
|
||||
// body
|
||||
rectFill(dst, x-s, y-s, s*2, s*2, lcdFg)
|
||||
// head
|
||||
rectFill(dst, x+s-1, y-s-1, 2, 2, lcdFg)
|
||||
// ears
|
||||
px(dst, x+s, y-s-2, lcdFg)
|
||||
px(dst, x+s-2, y-s-2, lcdFg)
|
||||
// feet stretch on hop
|
||||
stretch := float32(int(math.Abs(math.Sin(t*14)) * 2))
|
||||
px(dst, x-s, y+s, lcdFg)
|
||||
px(dst, x-s-stretch, y+s, lcdFg)
|
||||
}
|
||||
|
||||
func (g *Game) drawScooter(dst *ebiten.Image, x, y float32, blink bool) {
|
||||
if blink && (g.frame/4)%2 == 0 {
|
||||
return
|
||||
}
|
||||
// wheels
|
||||
circStroke(dst, x-6, y+4, 3, lcdFg)
|
||||
circStroke(dst, x+6, y+4, 3, lcdFg)
|
||||
px(dst, x-6, y+4, lcdFg)
|
||||
px(dst, x+6, y+4, lcdFg)
|
||||
// deck
|
||||
rectFill(dst, x-8, y, 16, 3, lcdFg)
|
||||
// seat post + seat
|
||||
line(dst, x+4, y, x+4, y-5, lcdFg)
|
||||
rectFill(dst, x+2, y-6, 5, 2, lcdFg)
|
||||
// handlebar column
|
||||
line(dst, x-4, y, x-5, y-8, lcdFg)
|
||||
// handlebars
|
||||
line(dst, x-8, y-8, x-2, y-8, lcdFg)
|
||||
// rider head
|
||||
circStroke(dst, x-5, y-12, 2, lcdFg)
|
||||
}
|
||||
|
||||
func (g *Game) drawPlay(dst *ebiten.Image) {
|
||||
dst.Fill(lcdBg)
|
||||
g.drawRoad(dst)
|
||||
g.drawHud(dst)
|
||||
// draw far rabbits first
|
||||
sort.Slice(g.rabbits, func(i, j int) bool { return g.rabbits[i].t < g.rabbits[j].t })
|
||||
for _, r := range g.rabbits {
|
||||
x, y := rabbitPos(r)
|
||||
drawRabbit(dst, x, y, r.t)
|
||||
}
|
||||
g.drawScooter(dst, laneX[g.playerLane], playerY, g.flash > 0)
|
||||
}
|
||||
|
||||
func (g *Game) drawTitle(dst *ebiten.Image) {
|
||||
dst.Fill(lcdBg)
|
||||
g.drawRoad(dst)
|
||||
drawText(dst, "RABBIT ROLLER", 60, 0, g.font, lcdFg)
|
||||
drawText(dst, "GAME & WATCH", 2, 0, g.font, lcdFg)
|
||||
drawText(dst, "WIDE SCREEN", 158, 0, g.font, lcdFg)
|
||||
// preview scooters
|
||||
for i := 0; i < nLanes; i++ {
|
||||
g.drawScooter(dst, laneX[i], playerY, false)
|
||||
}
|
||||
// demo rabbits
|
||||
for i := 1; i <= 3; i++ {
|
||||
fake := &rabbit{
|
||||
lane: (g.frame/30 + i) % nLanes,
|
||||
t: float64((g.frame+i*25)%90) / 90.0,
|
||||
}
|
||||
x, y := rabbitPos(fake)
|
||||
drawRabbit(dst, x, y, fake.t)
|
||||
}
|
||||
if (g.frame/30)%2 == 0 {
|
||||
drawText(dst, "PRESS Z TO START", 60, 58, g.font, lcdFg)
|
||||
}
|
||||
drawText(dst, "ARROWS MOVE Z START", 48, 72, g.font, lcdFg)
|
||||
}
|
||||
|
||||
func (g *Game) drawOver(dst *ebiten.Image) {
|
||||
g.drawPlay(dst)
|
||||
rectFill(dst, 60, 50, 120, 36, lcdBg)
|
||||
rectStroke(dst, 60, 50, 120, 36, lcdFg)
|
||||
drawText(dst, "GAME OVER", 80, 54, g.font, lcdFg)
|
||||
drawText(dst, fmt.Sprintf("SCORE %03d", g.score), 76, 66, g.font, lcdFg)
|
||||
if (g.frame/30)%2 == 0 {
|
||||
drawText(dst, "Z TO RESTART", 74, 76, g.font, lcdFg)
|
||||
}
|
||||
}
|
||||
|
||||
// --- ebiten Game interface ---
|
||||
|
||||
func (g *Game) Update() error {
|
||||
g.frame++
|
||||
switch g.state {
|
||||
case stateTitle:
|
||||
if startPressed() {
|
||||
g.reset()
|
||||
g.state = statePlay
|
||||
}
|
||||
case statePlay:
|
||||
g.updatePlay()
|
||||
case stateOver:
|
||||
if startPressed() {
|
||||
g.reset()
|
||||
g.state = statePlay
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *Game) Draw(screen *ebiten.Image) {
|
||||
switch g.state {
|
||||
case stateTitle:
|
||||
g.drawTitle(screen)
|
||||
case statePlay:
|
||||
g.drawPlay(screen)
|
||||
case stateOver:
|
||||
g.drawOver(screen)
|
||||
}
|
||||
}
|
||||
|
||||
func (g *Game) Layout(_, _ int) (int, int) {
|
||||
return screenW, screenH
|
||||
}
|
||||
|
||||
func main() {
|
||||
ebiten.SetWindowSize(screenW*scale, screenH*scale)
|
||||
ebiten.SetWindowTitle("Rabbit Roller")
|
||||
ebiten.SetWindowResizingMode(ebiten.WindowResizingModeEnabled)
|
||||
if err := ebiten.RunGame(newGame()); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
9
metadata.json
Normal file
9
metadata.json
Normal file
@@ -0,0 +1,9 @@
|
||||
{
|
||||
"name": "rabbitroller",
|
||||
"title": "Rabbit Roller",
|
||||
"author": "Teletype Games",
|
||||
"desc": "Jump and roll your way through the world as a cute rabbit in this endless runner game.",
|
||||
"site": "https://git.teletype.hu/games/rabbitroller",
|
||||
"license": "MIT License",
|
||||
"version": "1.0.0"
|
||||
}
|
||||
Reference in New Issue
Block a user