| changeset 15586 | 19c85b010144 |
| parent 15585 | f8c1492601fe |
| child 15772 | 95db10dcad71 |
| 15585:f8c1492601fe | 15586:19c85b010144 |
|---|---|
77 implementation |
77 implementation |
78 uses uCollisions, uVariables, Math, uConsts, uVisualGearsList, uFloat, uSound, uRenderUtils, uWorld, uUtils; |
78 uses uCollisions, uVariables, Math, uConsts, uVisualGearsList, uFloat, uSound, uRenderUtils, uWorld, uUtils; |
79 |
79 |
80 procedure doStepFlake(Gear: PVisualGear; Steps: Longword); |
80 procedure doStepFlake(Gear: PVisualGear; Steps: Longword); |
81 var sign: real; |
81 var sign: real; |
82 moved, rising, outside: boolean; |
82 moved, rising, outside, fallingFadeIn: boolean; |
83 vfc, vft, diff: LongWord; |
83 vfc, vft, diff: LongWord; |
84 spawnMargin: LongInt; |
84 spawnMargin: LongInt; |
85 const |
85 const |
86 randMargin = 50; |
86 randMargin = 50; |
87 maxFallSpeedForFadeIn = 750; |
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87 begin |
88 begin |
88 if SuddenDeathDmg then |
89 if SuddenDeathDmg then |
89 begin |
90 begin |
90 if (vobSDCount = 0) then exit; |
91 if (vobSDCount = 0) then exit; |
91 end |
92 end |
101 if SuddenDeathDmg then |
102 if SuddenDeathDmg then |
102 begin |
103 begin |
103 Y:= Y + (dY + tdY + cGravityf * vobSDFallSpeed) * Steps * Gear^.Scale; |
104 Y:= Y + (dY + tdY + cGravityf * vobSDFallSpeed) * Steps * Gear^.Scale; |
104 vfc:= vobSDFramesCount; |
105 vfc:= vobSDFramesCount; |
105 vft:= vobSDFrameTicks; |
106 vft:= vobSDFrameTicks; |
107 fallingFadeIn := vobSDFallSpeed <= maxFallSpeedForFadeIn; |
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106 end |
108 end |
107 else |
109 else |
108 begin |
110 begin |
109 Y:= Y + (dY + tdY + cGravityf * vobFallSpeed) * Steps * Gear^.Scale; |
111 Y:= Y + (dY + tdY + cGravityf * vobFallSpeed) * Steps * Gear^.Scale; |
110 vfc:= vobFramesCount; |
112 vfc:= vobFramesCount; |
111 vft:= vobFrameTicks; |
113 vft:= vobFrameTicks; |
114 fallingFadeIn := vobFallSpeed <= maxFallSpeedForFadeIn; |
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112 end; |
115 end; |
113 |
116 |
114 if vft > 0 then |
117 if vft > 0 then |
115 begin |
118 begin |
116 inc(FrameTicks, Steps); |
119 inc(FrameTicks, Steps); |
184 |
187 |
185 // if flake left acceptable vertical area, respawn it opposite side |
188 // if flake left acceptable vertical area, respawn it opposite side |
186 if outside then |
189 if outside then |
187 begin |
190 begin |
188 if rising then |
191 if rising then |
192 // rising flake |
|
189 begin |
193 begin |
190 if State = 0 then |
194 if State = 0 then |
191 begin |
195 begin |
192 // fade out rising flake |
196 // fade out rising flake |
193 diff:= (LAND_HEIGHT - (cCloudOffset - 110)) - round(Y); |
197 diff:= (LAND_HEIGHT - (cCloudOffset - 110)) - round(Y); |
194 diff:= Min(diff*2, $FF); |
198 diff:= Min(diff*2, $FF); |
195 if diff >= $FF then |
199 if diff >= $FF then |
196 begin |
200 begin |
201 // end of fade-out |
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197 diff:= $FF; |
202 diff:= $FF; |
198 State:= 1; |
203 State:= 1; |
199 end; |
204 end; |
200 Tint:= (Tint and $FFFFFF00) or ($FF - diff); |
205 Tint:= (Tint and $FFFFFF00) or ($FF - diff); |
201 end |
206 end |
202 else |
207 else |
203 begin |
208 begin |
209 // reset and move back to bottom |
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204 Y:= LAND_HEIGHT + spawnMargin + random(50); |
210 Y:= LAND_HEIGHT + spawnMargin + random(50); |
205 moved:= true; |
211 moved:= true; |
206 State:= 0; |
212 State:= 0; |
207 Tint:= Tint or $FF; |
213 Tint:= Tint or $FF; |
208 end; |
214 end; |
209 end |
215 end |
210 else |
216 else |
217 // falling flake |
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211 begin |
218 begin |
219 // move back to top |
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212 Y:= Y - (1024 + spawnMargin + random(50)); |
220 Y:= Y - (1024 + spawnMargin + random(50)); |
213 moved:= true; |
221 moved:= true; |
222 // activate fade-in if not falling too fast |
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223 if fallingFadeIn then |
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224 begin |
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225 State:= $FF; |
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226 Tint:= (Tint and $FFFFFF00) or ($FF - State); |
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227 end; |
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214 end; |
228 end; |
215 if moved then |
229 if moved then |
216 X:= cLeftScreenBorder + random(cScreenSpace); |
230 X:= cLeftScreenBorder + random(cScreenSpace); |
231 end |
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232 else if (not rising) and (State > 0) then |
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233 begin |
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234 // quickly fade in falling flake after appearing at top |
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235 if State > 16 then |
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236 Dec(State, 16) |
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237 else |
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238 State:= 0; |
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239 Tint:= (Tint and $FFFFFF00) or ($FF - State); |
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217 end; |
240 end; |
218 |
241 |
219 if moved then |
242 if moved then |
220 begin |
243 begin |
221 Angle:= random(360); |
244 Angle:= random(360); |