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277
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1 import semicongine
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2
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3
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4 proc main() =
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5 var scene = newScene("main", root=newEntity("rect"))
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6
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320
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7 var obj1 = newEntity("Obj1", {
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8 "mesh": Component(rect(color="f00f")),
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9 "hitbox": Component(HitBox(transform: translate3d(-0.5, -0.5, -0.5)))
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10 })
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11 var obj2 = newEntity("Obj2", {
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12 "mesh": Component(rect()),
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13 "hitbox": Component(HitBox(transform: translate3d(-0.5, -0.5, -0.5)))
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14 })
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15 var obj3 = newEntity("Obj3", {
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16 "mesh": Component(circle(color="0f0f")),
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17 "hitbox": Component(HitSphere(radius: 0.5))
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18 })
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277
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19
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20 scene.root.add obj2
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21 scene.root.add obj1
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22 scene.root.add obj3
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23 obj1.transform = scale3d(0.8, 0.8)
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24 obj3.transform = scale3d(0.1, 0.1)
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25
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26 const
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27 vertexInput = @[
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28 attr[Mat4]("transform", memoryPerformanceHint=PreferFastRead, perInstance=true),
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29 attr[Vec3f]("position", memoryPerformanceHint=PreferFastRead),
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30 attr[Vec4f]("color", memoryPerformanceHint=PreferFastRead),
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31 ]
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32 intermediate = @[attr[Vec4f]("colorout"),]
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33 uniforms = @[attr[Mat4]("perspective")]
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34 fragOutput = @[attr[Vec4f]("fragcolor")]
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35 (vertexCode, fragmentCode) = compileVertexFragmentShaderSet(
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36 inputs=vertexInput,
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37 intermediate=intermediate,
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38 outputs=fragOutput,
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39 uniforms=uniforms,
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40 vertexCode="""gl_Position = vec4(position, 1.0) * (transform * Uniforms.perspective); colorout = color;""",
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41 fragmentCode="""fragcolor = colorout;""",
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42 )
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43
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44 var engine = initEngine("Test collisions")
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45 engine.setRenderer(engine.gpuDevice.simpleForwardRenderPass(vertexCode, fragmentCode))
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320
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46 engine.addScene(scene, vertexInput, @[], materialIndexAttribute="")
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277
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47 scene.addShaderGlobal("perspective", Unit4F32)
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48
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49 while engine.updateInputs() == Running and not engine.keyIsDown(Escape):
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50 if engine.windowWasResized():
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51 var winSize = engine.getWindow().size
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52 scene.setShaderGlobal("perspective", orthoWindowAspect(winSize[1] / winSize[0]))
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53 if engine.keyIsDown(A): obj1.transform = obj1.transform * translate3d(-0.001, 0, 0)
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54 if engine.keyIsDown(D): obj1.transform = obj1.transform * translate3d( 0.001, 0, 0)
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55 if engine.keyIsDown(W): obj1.transform = obj1.transform * translate3d( 0, -0.001, 0)
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56 if engine.keyIsDown(S): obj1.transform = obj1.transform * translate3d( 0, 0.001, 0)
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57 if engine.keyIsDown(Q): obj1.transform = obj1.transform * rotate3d(-0.001, Z)
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58 if engine.keyIsDown(Key.E): obj1.transform = obj1.transform * rotate3d( 0.001, Z)
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59
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60 if engine.keyIsDown(Key.Z): obj2.transform = obj2.transform * rotate3d(-0.001, Z)
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61 if engine.keyIsDown(Key.X): obj2.transform = obj2.transform * rotate3d( 0.001, Z)
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62 if engine.keyIsDown(Key.C): obj2.transform = obj2.transform * translate3d(0, -0.001, 0)
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63 if engine.keyIsDown(Key.V): obj2.transform = obj2.transform * translate3d(0, 0.001, 0)
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320
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64 echo intersects(obj1["hitbox", HitBox()], obj3["hitbox", HitSphere()])
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277
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65 engine.renderScene(scene)
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66 engine.destroy()
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67
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68
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69 when isMainModule:
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70 main()
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